<SEC-DOCUMENT>0001047469-20-003588.txt : 20200615
<SEC-HEADER>0001047469-20-003588.hdr.sgml : 20200615
<ACCEPTANCE-DATETIME>20200615092438
ACCESSION NUMBER:		0001047469-20-003588
CONFORMED SUBMISSION TYPE:	424B5
PUBLIC DOCUMENT COUNT:		2
FILED AS OF DATE:		20200615
DATE AS OF CHANGE:		20200615

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			United Airlines Holdings, Inc.
		CENTRAL INDEX KEY:			0000100517
		STANDARD INDUSTRIAL CLASSIFICATION:	AIR TRANSPORTATION, SCHEDULED [4512]
		IRS NUMBER:				362675207
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		424B5
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	333-221865
		FILM NUMBER:		20962080

	BUSINESS ADDRESS:	
		STREET 1:		JENNIFER L. KRAFT - WHQLD
		STREET 2:		233 SOUTH WACKER DRIVE
		CITY:			CHICAGO
		STATE:			IL
		ZIP:			60606
		BUSINESS PHONE:		872-825-4000

	MAIL ADDRESS:	
		STREET 1:		JENNIFER L. KRAFT - WHQLD
		STREET 2:		233 SOUTH WACKER DRIVE
		CITY:			CHICAGO
		STATE:			IL
		ZIP:			60606

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	United Continental Holdings, Inc.
		DATE OF NAME CHANGE:	20100930

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	UAL CORP /DE/
		DATE OF NAME CHANGE:	19920703

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	ALLEGIS CORP
		DATE OF NAME CHANGE:	19880613
</SEC-HEADER>
<DOCUMENT>
<TYPE>424B5
<SEQUENCE>1
<FILENAME>a2241873z424b5.htm
<DESCRIPTION>424B5
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Use these links to rapidly review the document<BR>
<A HREF="#bg15401_table_of_contents">  TABLE OF CONTENTS</A> <BR>
<A HREF="#bg15402_table_of_contents">  TABLE OF CONTENTS</A><BR></font>
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<P ALIGN="RIGHT" style="font-family:times;"><FONT SIZE=2><B>Filed Pursuant to Rule 424(b)(5)<BR>
Registration Statement no. 333-221865  </B></FONT></P>

<P ALIGN="CENTER" style="font-family:times;"><FONT SIZE=2><B> <A NAME="aa15401_calculation_of_registration_fee"> </A>
<A NAME="toc_aa15401_1"> </A>
<BR>  CALCULATION OF REGISTRATION FEE    <BR>    </B></FONT></P>
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<TD VALIGN="BOTTOM" style="font-family:times;"><p style="font-family:times;margin-left:5pt;text-indent:-5pt;"><FONT SIZE=2> </FONT></TD>
<TD VALIGN="BOTTOM" style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD VALIGN="BOTTOM" style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD VALIGN="BOTTOM" style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD VALIGN="BOTTOM" style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD VALIGN="BOTTOM" style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD VALIGN="BOTTOM" style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD VALIGN="BOTTOM" style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD VALIGN="BOTTOM" style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
</TR>
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<TD COLSPAN=9 VALIGN="BOTTOM" style="font-family:times;border-bottom:double #000000 2.25pt;">&nbsp;</TD>
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<TH ALIGN="CENTER" style="font-family:times;"><FONT SIZE=1><B>Title of Each Class of Securities<BR>
to be Registered</B></FONT><BR></TH>
<TH style="font-family:times;"><FONT SIZE=1>&nbsp;</FONT></TH>
<TH ALIGN="CENTER" style="font-family:times;"><FONT SIZE=1><B>Amount to be<BR>
Registered(1)</B></FONT><BR></TH>
<TH style="font-family:times;"><FONT SIZE=1>&nbsp;</FONT></TH>
<TH ALIGN="CENTER" style="font-family:times;"><FONT SIZE=1><B>Proposed Maximum<BR>
Offering Price per<BR>
Share(2)</B></FONT><BR></TH>
<TH style="font-family:times;"><FONT SIZE=1>&nbsp;</FONT></TH>
<TH ALIGN="CENTER" style="font-family:times;"><FONT SIZE=1><B>Proposed Maximum<BR>
Aggregate Offering<BR>
Price</B></FONT><BR></TH>
<TH style="font-family:times;"><FONT SIZE=1>&nbsp;</FONT></TH>
<TH ALIGN="CENTER" style="font-family:times;"><FONT SIZE=1><B>Amount of<BR>
Registration Fee(4)</B></FONT><BR></TH>
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<TD style="font-family:times;"><p style="font-family:times;margin-left:4pt;text-indent:-4pt;"><FONT SIZE=1><B> </B></FONT><FONT SIZE=2>Common Stock, par value $0.01 per share</FONT></TD>
<TD style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD ALIGN="CENTER" style="font-family:times;"><FONT SIZE=2>28,000,000</FONT></TD>
<TD style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD ALIGN="CENTER" style="font-family:times;"><FONT SIZE=2>$34.30(3)</FONT></TD>
<TD style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD ALIGN="CENTER" style="font-family:times;"><FONT SIZE=2>$960,400,000(3)</FONT></TD>
<TD style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD ALIGN="CENTER" style="font-family:times;"><FONT SIZE=2>$124,659.92</FONT></TD>
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<DT style='font-family:times;margin-bottom:-11pt;'><FONT SIZE=2>(1)</FONT></DT><DD style="font-family:times;"><FONT SIZE=2>Pursuant
to Rule&nbsp;416(a) under the Securities Act of 1933, as amended (the "Securities Act"), the number of newly registered shares of United Airlines
Holdings,&nbsp;Inc. Common Stock being registered herein shall be adjusted to include any additional shares of Common Stock that may be issued or become issuable as a result of any Common Stock
dividend, split, combination or similar transaction.
<BR><BR></FONT></DD><DT style='font-family:times;margin-bottom:-11pt;'><FONT SIZE=2>(2)</FONT></DT><DD style="font-family:times;"><FONT SIZE=2>The
proposed maximum offering price per share of Common Stock will be determined from time-to-time in connection with, and at the time of, the sale of such share of
Common Stock.
<BR><BR></FONT></DD><DT style='font-family:times;margin-bottom:-11pt;'><FONT SIZE=2>(3)</FONT></DT><DD style="font-family:times;"><FONT SIZE=2>Estimated
solely for the purpose of calculating the registration fee pursuant to Rule&nbsp;457(c) under the Securities Act based on the average high and low sale
price of the Common Stock on June&nbsp;11, 2020, as reported on The Nasdaq Stock Market.
<BR><BR></FONT></DD><DT style='font-family:times;margin-bottom:-11pt;'><FONT SIZE=2>(4)</FONT></DT><DD style="font-family:times;"><FONT SIZE=2>Calculated
in accordance with Rule&nbsp;457(o) under the Securities Act.  </FONT></DD></DL>
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</FONT> <FONT SIZE=2><A HREF="#bg15401a_main_toc">Table of Contents</A> </FONT></P>

<P style="font-family:times;"><FONT SIZE=2><B><U>PROSPECTUS SUPPLEMENT</U><BR>  </B></FONT><FONT SIZE=2>(To Prospectus Dated December&nbsp;1, 2017) </FONT></P>

<P ALIGN="CENTER" style="font-family:times;"><FONT SIZE=4><B>Up to 28,000,000 Shares  </B></FONT></P>

<P ALIGN="CENTER" style="font-family:times;"><FONT SIZE=4><B>
<IMG SRC="g399502.jpg" ALT="LOGO" WIDTH="360" HEIGHT="75">
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<P ALIGN="CENTER" style="font-family:times;"><FONT SIZE=5><B>UNITED AIRLINES HOLDINGS,&nbsp;INC.  </B></FONT></P>

<P ALIGN="CENTER" style="font-family:times;"><FONT SIZE=4><B>COMMON STOCK  </B></FONT></P>

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<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;This prospectus supplement and the accompanying prospectus relate to the issuance and sale from time to time of up to 28,000,000 shares of our
common stock, par value $0.01 per share, through Citigroup Global Markets&nbsp;Inc., BofA Securities,&nbsp;Inc. and J.P. Morgan Securities&nbsp;LLC (each, a "manager" and together, the
"managers"). These sales, if any, will be made pursuant to the terms of the equity distribution agreement, dated June&nbsp;15, 2020, between us and the managers (the "equity distribution
agreement"). </FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Sales
of our common stock, if any, under this prospectus supplement and the accompanying prospectus may be made in sales deemed to be "at-the-market offerings" as defined in
Rule&nbsp;415 under the Securities Act of 1933, as amended (the "Securities Act"), including by sales made directly on or through The Nasdaq Global Select Market (the "Nasdaq"), the existing trading
market for our common stock. Subject to the terms and conditions of the equity distribution agreement, each manager will use its commercially reasonable efforts, consistent with its normal trading and
sales practices, to sell on our behalf all of the shares designated by us. We may instruct the managers not to sell any shares if the sales cannot be effected at or above the price designated by us in
any such instruction. </FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Under
the terms of the equity distribution agreement, we also may sell shares of our common stock to a manager as principal for its own account at a price agreed upon at the time of the
sale. If we sell shares of our common stock to a manager as principal, we will enter into a separate terms agreement with such manager and we will describe that agreement in a separate prospectus
supplement or pricing supplement. </FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Our
common stock is listed on the Nasdaq under the symbol "UAL." The last reported sale price of our common stock on the Nasdaq on June&nbsp;12, 2020 was $39.66 per share. </FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</FONT><FONT
SIZE=3><B>Investing in our common stock involves certain risks. See "Risk Factors" on page&nbsp;S-3 of this prospectus supplement and the "Risk Factors"
section contained in the documents incorporated by reference herein to read about factors you should consider before investing in our common stock.</B></FONT></P>


<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;We will pay each manager a commission of up to 1.0% of the gross sales price per share of our common stock sold through such manager under the
equity distribution agreement. The net proceeds from any sales
under this prospectus supplement will be used as described under "Use of Proceeds" in this prospectus supplement. </FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Our
certificate of incorporation limits the voting rights of persons holding any of our equity securities who are not "citizens of the United States" to 24.9%. Accordingly, if you are
not a "citizen of the United States," any shares of common stock that you purchase may be subject to voting restrictions. See "Risk Factors&#151;Our certificate of incorporation limits voting
rights of certain foreign persons." </FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</FONT><FONT
SIZE=2><B>Neither the Securities and Exchange Commission nor any state or other domestic or foreign securities commission or regulatory authority has approved or
disapproved of these securities or determined if this prospectus supplement or the accompanying prospectus is truthful or complete. Any representation to the contrary is a criminal
offense.</B></FONT></P>

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<TD VALIGN="TOP" style="font-family:times;"><FONT SIZE=5><B>Citigroup</B></FONT></TD>
<TD VALIGN="TOP" style="font-family:times;"><FONT SIZE=5>&nbsp;</FONT></TD>
<TD ALIGN="CENTER" VALIGN="TOP" style="font-family:times;"><FONT SIZE=5><B>BofA Securities</B></FONT></TD>
<TD VALIGN="TOP" style="font-family:times;"><FONT SIZE=5>&nbsp;</FONT></TD>
<TD ALIGN="RIGHT" VALIGN="TOP" style="font-family:times;"><FONT SIZE=5><B>J.P. Morgan</B></FONT></TD>
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The date of this prospectus supplement is June&nbsp;15, 2020. </FONT></P>

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<P style="font-family:times;"><FONT SIZE=2><A HREF="#bg15401a_main_toc">Table of Contents</A> </FONT></P>

<P style="font-family:times;"><FONT SIZE=2><A NAME="BG15401A_main_toc"></A> </FONT></P>

<P ALIGN="CENTER" style="font-family:times;"><FONT SIZE=2><A NAME="bg15401_table_of_contents"> </A>
<BR></FONT><FONT SIZE=2><B>  TABLE OF CONTENTS    <BR>    </B></FONT></P>

<P ALIGN="CENTER" style="font-family:times;"><FONT SIZE=2><B> Prospectus Supplement  </B></FONT></P>


<P style="font-family:times;"><FONT SIZE=2>
<A NAME="BG15401_TOC2"></A> </FONT></P>
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<TH style="font-family:times;"><FONT SIZE=1>&nbsp;</FONT></TH>
<TH COLSPAN=2 ALIGN="CENTER" style="font-family:times;border-bottom:solid #000000 1.0pt;"><FONT SIZE=1><B>Page </B></FONT></TH>
<TH style="font-family:times;"><FONT SIZE=1>&nbsp;</FONT></TH>
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<TD style="font-family:times;"><A HREF="#ca15401_prospectus_supplement_summary"><p style="font-family:times;margin-left:10pt;text-indent:-10pt;"><FONT SIZE=2> </FONT><FONT SIZE=2>PROSPECTUS SUPPLEMENT SUMMARY</FONT></A></TD>
<TD style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD VALIGN="BOTTOM" style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD ALIGN="RIGHT" VALIGN="BOTTOM" style="font-family:times;"><A HREF="#ca15401_prospectus_supplement_summary"><FONT SIZE=2>S-1</FONT></A></TD>
<TD VALIGN="BOTTOM" style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
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<TD style="font-family:times;"><A HREF="#da15401_risk_factors"><p style="font-family:times;margin-left:10pt;text-indent:-10pt;"><FONT SIZE=2> </FONT><FONT SIZE=2>RISK FACTORS</FONT></A></TD>
<TD style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD VALIGN="BOTTOM" style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD ALIGN="RIGHT" VALIGN="BOTTOM" style="font-family:times;"><A HREF="#da15401_risk_factors"><FONT SIZE=2>S-3</FONT></A></TD>
<TD VALIGN="BOTTOM" style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
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<TD style="font-family:times;"><A HREF="#dc15401_use_of_proceeds"><p style="font-family:times;margin-left:10pt;text-indent:-10pt;"><FONT SIZE=2> </FONT><FONT SIZE=2>USE OF PROCEEDS</FONT></A></TD>
<TD style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD VALIGN="BOTTOM" style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD ALIGN="RIGHT" VALIGN="BOTTOM" style="font-family:times;"><A HREF="#dc15401_use_of_proceeds"><FONT SIZE=2>S-6</FONT></A></TD>
<TD VALIGN="BOTTOM" style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
</TR>
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<TD style="font-family:times;"><A HREF="#dc15401_u.s._federal_tax_consi__dc102107"><p style="font-family:times;margin-left:10pt;text-indent:-10pt;"><FONT SIZE=2> </FONT><FONT SIZE=2>U.S. FEDERAL TAX CONSIDERATIONS FOR NON-U.S. STOCKHOLDERS</FONT></A></TD>
<TD style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD VALIGN="BOTTOM" style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD ALIGN="RIGHT" VALIGN="BOTTOM" style="font-family:times;"><A HREF="#dc15401_u.s._federal_tax_consi__dc102107"><FONT SIZE=2>S-7</FONT></A></TD>
<TD VALIGN="BOTTOM" style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
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<TD style="font-family:times;"><A HREF="#page_de15401_1_11"><p style="font-family:times;margin-left:10pt;text-indent:-10pt;"><FONT SIZE=2> </FONT><FONT SIZE=2>PLAN OF DISTRIBUTION</FONT></A></TD>
<TD style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD VALIGN="BOTTOM" style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD ALIGN="RIGHT" VALIGN="BOTTOM" style="font-family:times;"><A HREF="#page_de15401_1_11"><FONT SIZE=2>S-11</FONT></A></TD>
<TD VALIGN="BOTTOM" style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
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<TD style="font-family:times;"><A HREF="#page_de15401_1_13"><p style="font-family:times;margin-left:10pt;text-indent:-10pt;"><FONT SIZE=2> </FONT><FONT SIZE=2>WHERE YOU CAN FIND MORE INFORMATION</FONT></A></TD>
<TD style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD VALIGN="BOTTOM" style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD ALIGN="RIGHT" VALIGN="BOTTOM" style="font-family:times;"><A HREF="#page_de15401_1_13"><FONT SIZE=2>S-13</FONT></A></TD>
<TD VALIGN="BOTTOM" style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
</TR>
<TR VALIGN="TOP">
<TD style="font-family:times;"><A HREF="#page_de15401_1_13"><p style="font-family:times;margin-left:10pt;text-indent:-10pt;"><FONT SIZE=2> </FONT><FONT SIZE=2>INCORPORATION OF CERTAIN DOCUMENTS BY REFERENCE</FONT></A></TD>
<TD style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD VALIGN="BOTTOM" style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD ALIGN="RIGHT" VALIGN="BOTTOM" style="font-family:times;"><A HREF="#page_de15401_1_13"><FONT SIZE=2>S-13</FONT></A></TD>
<TD VALIGN="BOTTOM" style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
</TR>
<TR VALIGN="TOP">
<TD style="font-family:times;"><A HREF="#page_de15401_1_14"><p style="font-family:times;margin-left:10pt;text-indent:-10pt;"><FONT SIZE=2> </FONT><FONT SIZE=2>LEGAL MATTERS</FONT></A></TD>
<TD style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD VALIGN="BOTTOM" style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD ALIGN="RIGHT" VALIGN="BOTTOM" style="font-family:times;"><A HREF="#page_de15401_1_14"><FONT SIZE=2>S-14</FONT></A></TD>
<TD VALIGN="BOTTOM" style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
</TR>
<TR VALIGN="TOP">
<TD style="font-family:times;"><A HREF="#page_de15401_1_14"><p style="font-family:times;margin-left:10pt;text-indent:-10pt;"><FONT SIZE=2> </FONT><FONT SIZE=2>EXPERTS</FONT></A></TD>
<TD style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD VALIGN="BOTTOM" style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD ALIGN="RIGHT" VALIGN="BOTTOM" style="font-family:times;"><A HREF="#page_de15401_1_14"><FONT SIZE=2>S-14</FONT></A></TD>
<TD VALIGN="BOTTOM" style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
</TR>
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 <P ALIGN="CENTER" style="font-family:times;"><FONT SIZE=2><B> Prospectus  </B></FONT></P>


<P style="font-family:times;"><FONT SIZE=2>
<A NAME="BG15401_TOC"></A> </FONT></P>
 <div style="display:none;*display:block;margin-top:-1pt;"></div>

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<TH ALIGN="LEFT" style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT><BR></TH>
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<TH COLSPAN=2 ALIGN="CENTER" style="font-family:times;border-bottom:solid #000000 1.0pt;"><FONT SIZE=1><B>Page </B></FONT></TH>
<TH style="font-family:times;"><FONT SIZE=1>&nbsp;</FONT></TH>
</TR>
<TR VALIGN="TOP">
<TD style="font-family:times;"><A HREF="#bg15402_about_this_prospectus"><p style="font-family:times;margin-left:10pt;text-indent:-10pt;"><FONT SIZE=2> </FONT><FONT SIZE=2>ABOUT THIS PROSPECTUS</FONT></A></TD>
<TD style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD VALIGN="BOTTOM" style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD ALIGN="RIGHT" VALIGN="BOTTOM" style="font-family:times;"><A HREF="#bg15402_about_this_prospectus"><FONT SIZE=2>1</FONT></A></TD>
<TD VALIGN="BOTTOM" style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
</TR>
<TR VALIGN="TOP">
<TD style="font-family:times;"><A HREF="#da15402_risk_factors"><p style="font-family:times;margin-left:10pt;text-indent:-10pt;"><FONT SIZE=2> </FONT><FONT SIZE=2>RISK FACTORS</FONT></A></TD>
<TD style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD VALIGN="BOTTOM" style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD ALIGN="RIGHT" VALIGN="BOTTOM" style="font-family:times;"><A HREF="#da15402_risk_factors"><FONT SIZE=2>2</FONT></A></TD>
<TD VALIGN="BOTTOM" style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
</TR>
<TR VALIGN="TOP">
<TD style="font-family:times;"><A HREF="#da15402_cautionary_statement_c__da102417"><p style="font-family:times;margin-left:10pt;text-indent:-10pt;"><FONT SIZE=2> </FONT><FONT SIZE=2>CAUTIONARY STATEMENT CONCERNING FORWARD-LOOKING STATEMENTS</FONT></A></TD>
<TD style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD VALIGN="BOTTOM" style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD ALIGN="RIGHT" VALIGN="BOTTOM" style="font-family:times;"><A HREF="#da15402_cautionary_statement_c__da102417"><FONT SIZE=2>2</FONT></A></TD>
<TD VALIGN="BOTTOM" style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
</TR>
<TR VALIGN="TOP">
<TD style="font-family:times;"><A HREF="#da15402_the_company"><p style="font-family:times;margin-left:10pt;text-indent:-10pt;"><FONT SIZE=2> </FONT><FONT SIZE=2>THE COMPANY</FONT></A></TD>
<TD style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD VALIGN="BOTTOM" style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD ALIGN="RIGHT" VALIGN="BOTTOM" style="font-family:times;"><A HREF="#da15402_the_company"><FONT SIZE=2>3</FONT></A></TD>
<TD VALIGN="BOTTOM" style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
</TR>
<TR VALIGN="TOP">
<TD style="font-family:times;"><A HREF="#da15402_selling_security_holders"><p style="font-family:times;margin-left:10pt;text-indent:-10pt;"><FONT SIZE=2> </FONT><FONT SIZE=2>SELLING SECURITY HOLDERS</FONT></A></TD>
<TD style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD VALIGN="BOTTOM" style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD ALIGN="RIGHT" VALIGN="BOTTOM" style="font-family:times;"><A HREF="#da15402_selling_security_holders"><FONT SIZE=2>3</FONT></A></TD>
<TD VALIGN="BOTTOM" style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
</TR>
<TR VALIGN="TOP">
<TD style="font-family:times;"><A HREF="#da15402_use_of_proceeds"><p style="font-family:times;margin-left:10pt;text-indent:-10pt;"><FONT SIZE=2> </FONT><FONT SIZE=2>USE OF PROCEEDS</FONT></A></TD>
<TD style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD VALIGN="BOTTOM" style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD ALIGN="RIGHT" VALIGN="BOTTOM" style="font-family:times;"><A HREF="#da15402_use_of_proceeds"><FONT SIZE=2>4</FONT></A></TD>
<TD VALIGN="BOTTOM" style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
</TR>
<TR VALIGN="TOP">
<TD style="font-family:times;"><A HREF="#da15402_ratios_of_earnings_to_fixed_charges"><p style="font-family:times;margin-left:10pt;text-indent:-10pt;"><FONT SIZE=2> </FONT><FONT SIZE=2>RATIOS OF EARNINGS TO FIXED CHARGES</FONT></A></TD>
<TD style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD VALIGN="BOTTOM" style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD ALIGN="RIGHT" VALIGN="BOTTOM" style="font-family:times;"><A HREF="#da15402_ratios_of_earnings_to_fixed_charges"><FONT SIZE=2>4</FONT></A></TD>
<TD VALIGN="BOTTOM" style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
</TR>
<TR VALIGN="TOP">
<TD style="font-family:times;"><A HREF="#dc15402_description_of_ual_capital_stock"><p style="font-family:times;margin-left:10pt;text-indent:-10pt;"><FONT SIZE=2> </FONT><FONT SIZE=2>DESCRIPTION OF UAL CAPITAL STOCK</FONT></A></TD>
<TD style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD VALIGN="BOTTOM" style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD ALIGN="RIGHT" VALIGN="BOTTOM" style="font-family:times;"><A HREF="#dc15402_description_of_ual_capital_stock"><FONT SIZE=2>5</FONT></A></TD>
<TD VALIGN="BOTTOM" style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
</TR>
<TR VALIGN="TOP">
<TD style="font-family:times;"><A HREF="#de15402_description_of_debt_securities_and_guarantees"><p style="font-family:times;margin-left:10pt;text-indent:-10pt;"><FONT SIZE=2> </FONT><FONT SIZE=2>DESCRIPTION OF DEBT SECURITIES AND GUARANTEES</FONT></A></TD>
<TD style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD VALIGN="BOTTOM" style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD ALIGN="RIGHT" VALIGN="BOTTOM" style="font-family:times;"><A HREF="#de15402_description_of_debt_securities_and_guarantees"><FONT SIZE=2>11</FONT></A></TD>
<TD VALIGN="BOTTOM" style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
</TR>
<TR VALIGN="TOP">
<TD style="font-family:times;"><A HREF="#dg15402_description_of_depositary_shares"><p style="font-family:times;margin-left:10pt;text-indent:-10pt;"><FONT SIZE=2> </FONT><FONT SIZE=2>DESCRIPTION OF DEPOSITARY SHARES</FONT></A></TD>
<TD style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD VALIGN="BOTTOM" style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD ALIGN="RIGHT" VALIGN="BOTTOM" style="font-family:times;"><A HREF="#dg15402_description_of_depositary_shares"><FONT SIZE=2>22</FONT></A></TD>
<TD VALIGN="BOTTOM" style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
</TR>
<TR VALIGN="TOP">
<TD style="font-family:times;"><A HREF="#dg15402_description_of_stock_purchase___des02662"><p style="font-family:times;margin-left:10pt;text-indent:-10pt;"><FONT SIZE=2> </FONT><FONT SIZE=2>DESCRIPTION OF STOCK PURCHASE CONTRACTS AND STOCK PURCHASE UNITS</FONT></A></TD>
<TD style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD VALIGN="BOTTOM" style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD ALIGN="RIGHT" VALIGN="BOTTOM" style="font-family:times;"><A HREF="#dg15402_description_of_stock_purchase___des02662"><FONT SIZE=2>25</FONT></A></TD>
<TD VALIGN="BOTTOM" style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
</TR>
<TR VALIGN="TOP">
<TD style="font-family:times;"><A HREF="#dg15402_description_of_subscription_rights"><p style="font-family:times;margin-left:10pt;text-indent:-10pt;"><FONT SIZE=2> </FONT><FONT SIZE=2>DESCRIPTION OF SUBSCRIPTION RIGHTS</FONT></A></TD>
<TD style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD VALIGN="BOTTOM" style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD ALIGN="RIGHT" VALIGN="BOTTOM" style="font-family:times;"><A HREF="#dg15402_description_of_subscription_rights"><FONT SIZE=2>26</FONT></A></TD>
<TD VALIGN="BOTTOM" style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
</TR>
<TR VALIGN="TOP">
<TD style="font-family:times;"><A HREF="#dg15402_description_of_warrants"><p style="font-family:times;margin-left:10pt;text-indent:-10pt;"><FONT SIZE=2> </FONT><FONT SIZE=2>DESCRIPTION OF WARRANTS</FONT></A></TD>
<TD style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD VALIGN="BOTTOM" style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD ALIGN="RIGHT" VALIGN="BOTTOM" style="font-family:times;"><A HREF="#dg15402_description_of_warrants"><FONT SIZE=2>27</FONT></A></TD>
<TD VALIGN="BOTTOM" style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
</TR>
<TR VALIGN="TOP">
<TD style="font-family:times;"><A HREF="#dg15402_plan_of_distribution"><p style="font-family:times;margin-left:10pt;text-indent:-10pt;"><FONT SIZE=2> </FONT><FONT SIZE=2>PLAN OF DISTRIBUTION</FONT></A></TD>
<TD style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD VALIGN="BOTTOM" style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD ALIGN="RIGHT" VALIGN="BOTTOM" style="font-family:times;"><A HREF="#dg15402_plan_of_distribution"><FONT SIZE=2>28</FONT></A></TD>
<TD VALIGN="BOTTOM" style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
</TR>
<TR VALIGN="TOP">
<TD style="font-family:times;"><A HREF="#DI_WHERE"><p style="font-family:times;margin-left:10pt;text-indent:-10pt;"><FONT SIZE=2> </FONT><FONT SIZE=2>WHERE YOU CAN FIND MORE INFORMATION</FONT></A></TD>
<TD style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD VALIGN="BOTTOM" style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD ALIGN="RIGHT" VALIGN="BOTTOM" style="font-family:times;"><A HREF="#DI_WHERE"><FONT SIZE=2>31</FONT></A></TD>
<TD VALIGN="BOTTOM" style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
</TR>
<TR VALIGN="TOP">
<TD style="font-family:times;"><A HREF="#DI_INCORP"><p style="font-family:times;margin-left:10pt;text-indent:-10pt;"><FONT SIZE=2> </FONT><FONT SIZE=2>INCORPORATION OF CERTAIN DOCUMENTS BY REFERENCE</FONT></A></TD>
<TD style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD VALIGN="BOTTOM" style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD ALIGN="RIGHT" VALIGN="BOTTOM" style="font-family:times;"><A HREF="#DI_INCORP"><FONT SIZE=2>31</FONT></A></TD>
<TD VALIGN="BOTTOM" style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
</TR>
<TR VALIGN="TOP">
<TD style="font-family:times;"><A HREF="#DI_LEGAL"><p style="font-family:times;margin-left:10pt;text-indent:-10pt;"><FONT SIZE=2> </FONT><FONT SIZE=2>LEGAL MATTERS</FONT></A></TD>
<TD style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD VALIGN="BOTTOM" style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD ALIGN="RIGHT" VALIGN="BOTTOM" style="font-family:times;"><A HREF="#DI_LEGAL"><FONT SIZE=2>32</FONT></A></TD>
<TD VALIGN="BOTTOM" style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
</TR>
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<TD style="font-family:times;"><A HREF="#DI_EXPERTS"><p style="font-family:times;margin-left:10pt;text-indent:-10pt;"><FONT SIZE=2> </FONT><FONT SIZE=2>EXPERTS</FONT></A></TD>
<TD style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD VALIGN="BOTTOM" style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD ALIGN="RIGHT" VALIGN="BOTTOM" style="font-family:times;"><A HREF="#DI_EXPERTS"><FONT SIZE=2>32</FONT></A></TD>
<TD VALIGN="BOTTOM" style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
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<A NAME="page_bg15401_1_2"> </A>

<P style="font-family:times;"><FONT SIZE=2><A HREF="#bg15401a_main_toc">Table of Contents</A></FONT></P>

<P ALIGN="CENTER" style="font-family:times;"><FONT SIZE=2><A NAME="bg15401_about_this_prospectus_supplement"> </A>
<BR></FONT><FONT SIZE=2><B>  ABOUT THIS PROSPECTUS SUPPLEMENT    <BR>    </B></FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;This document contains two parts. The first part is this prospectus supplement, which describes the terms of this offering of common stock and
also adds to and updates information contained in the accompanying prospectus and the documents incorporated or deemed incorporated by reference herein and therein. The second part is the accompanying
prospectus, which contains a description of our common stock and gives more general information, some of which may not apply to this offering. If there is any inconsistency between the information in
this prospectus supplement and the accompanying prospectus, you should rely on this prospectus supplement. Before purchasing any shares of our common stock, you should read carefully both this
prospectus supplement and the accompanying prospectus, together with the documents incorporated or deemed incorporated by reference herein and therein (as described below under the heading
"Incorporation of Certain Documents by Reference"), any related free writing prospectus and the additional information described below under the heading "Where You Can Find More Information." </FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;This
prospectus supplement and the accompanying prospectus are part of an effective registration statement that we filed with the Securities and Exchange Commission (the "SEC") using a
"shelf" registration process. This prospectus supplement and the accompanying prospectus, which form&nbsp;a part of the registration statement, do not contain all of the information set forth in the
registration statement. For further information with respect to us and our common stock, reference is made to the registration statement, including the exhibits thereto and the documents incorporated
by reference therein. Statements contained in this prospectus supplement and the accompanying prospectus as to the contents of any contract or other document referred to herein and therein are not
necessarily complete and, where that contract or other document is an exhibit to the registration statement, we refer you to the full text of the contract or other document filed as an exhibit to the
registration statement. The registration statement and the exhibits can be obtained from the SEC as indicated under the heading "Where You Can Find More Information." </FONT></P>


<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;You
should rely only on the information contained in or incorporated by reference into this prospectus supplement, the accompanying prospectus, any related free writing prospectus and
the other information to which we refer you. Neither we nor the managers have authorized anyone to provide you with any information other than that contained in or incorporated by reference into this
prospectus supplement or the accompanying prospectus or in any related free writing prospectus. If anyone provides you with different or inconsistent information, you should not rely on it. </FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;This
prospectus supplement and the accompanying prospectus do not constitute an offer to sell or the solicitation of an offer to buy securities in any jurisdiction to any person to whom
it is unlawful to make such offer or solicitation in such jurisdiction. You should assume that the information appearing in this prospectus supplement, the accompanying prospectus and any related free
writing prospectus is accurate as of the date on its respective cover, and that any information incorporated by reference herein or therein is accurate only as of the date of the document incorporated
by reference, unless we indicate otherwise. Our business, financial condition, results of operations and prospects may have changed since those dates. </FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;No
action is being taken in any jurisdiction outside the United States to permit a public offering of common stock or possession or distribution of this prospectus supplement in that
jurisdiction. Persons who come into possession of this prospectus supplement in jurisdictions outside the United States are required to inform themselves about and to observe any restrictions as to
this offering and the distribution of this prospectus supplement applicable to that jurisdiction. </FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Unless
the context requires otherwise or except as otherwise noted, as used in this prospectus supplement the words "we," "Company," "us" and "our" refer to United Airlines
Holdings,&nbsp;Inc. and its consolidated subsidiaries. </FONT></P>

<P ALIGN="CENTER" style="font-family:times;"><FONT SIZE=2>S-ii</FONT></P>

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</FONT></P>

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<P style="font-family:times;"><FONT SIZE=2><A HREF="#bg15401a_main_toc">Table of Contents</A> </FONT></P>

<P ALIGN="CENTER" style="font-family:times;"><FONT SIZE=2><A NAME="bi15401_cautionary_statement_c__bi102422"> </A>
<A NAME="toc_bi15401_1"> </A>
<BR></FONT><FONT SIZE=2><B>  CAUTIONARY STATEMENT CONCERNING FORWARD-LOOKING STATEMENTS    <BR>    </B></FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;This prospectus supplement, the accompanying prospectus and the documents incorporated or deemed incorporated by reference herein and therein
contain "forward-looking statements" subject to the safe harbor created by the Private Securities Litigation Reform Act of 1995. These forward-looking statements are based on the current beliefs and
expectations of our management with respect to future events and are subject to significant risks and uncertainties. These statements relate to future events, including our future performance, and
management's expectations, beliefs, intentions, plans or projections relating to the future, and some of these statements can be identified by the use of forward-looking terminology such as
"believes," "expects," "anticipates," "estimates," "projects," "intends," "seeks," "future," "continue," "contemplate," "plans," "predicts," "would," "will," "may," "should" and the negative or other
variations of those terms or comparable terminology or by discussion of strategy, plans, opportunities or intentions. As a result, actual results, performance or achievements may vary materially from
those anticipated by the forward-looking statements. </FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Among
the factors that could cause actual results, performance or achievements to differ materially from those indicated by such forward-looking statements
are:</FONT></P>

<UL>
<DL compact>
<DT style='font-family:times;margin-bottom:-11pt;'><FONT SIZE=2>&#149;</FONT></DT><DD style="font-family:times;"><FONT SIZE=2> the duration and spread of the ongoing global novel coronavirus ("COVID-19") pandemic and the outbreak of any other disease or similar public
health threat and the impact on our business, results of operations and financial condition; </FONT><FONT SIZE=2>
<BR><BR></FONT></DD><DT style='font-family:times;margin-bottom:-11pt;'><FONT SIZE=2>&#149;</FONT></DT><DD style="font-family:times;"><FONT SIZE=2> the final terms of borrowing pursuant to the Loan Program under the Coronavirus Aid, Relief, and Economic Security Act (the "CARES Act"), if
any, and the effects of the grant and promissory note through the Payroll Support Program under the CARES Act; </FONT><FONT SIZE=2>
<BR><BR></FONT></DD><DT style='font-family:times;margin-bottom:-11pt;'><FONT SIZE=2>&#149;</FONT></DT><DD style="font-family:times;"><FONT SIZE=2> the costs and availability of financing; </FONT><FONT SIZE=2>
<BR><BR></FONT></DD><DT style='font-family:times;margin-bottom:-11pt;'><FONT SIZE=2>&#149;</FONT></DT><DD style="font-family:times;"><FONT SIZE=2> our significant amount of financial leverage from fixed obligations and ability to seek additional liquidity and maintain adequate liquidity; </FONT> <FONT SIZE=2>
<BR><BR></FONT></DD><DT style='font-family:times;margin-bottom:-11pt;'><FONT SIZE=2>&#149;</FONT></DT><DD style="font-family:times;"><FONT SIZE=2> our ability to comply with the terms of our various financing arrangements; </FONT><FONT SIZE=2>
<BR><BR></FONT></DD><DT style='font-family:times;margin-bottom:-11pt;'><FONT SIZE=2>&#149;</FONT></DT><DD style="font-family:times;"><FONT SIZE=2> the material disruption of our strategic operating plan as a result of the COVID-19 pandemic, and our ability to execute our strategic
operating plans in the long term; </FONT><FONT SIZE=2>
<BR><BR></FONT></DD><DT style='font-family:times;margin-bottom:-11pt;'><FONT SIZE=2>&#149;</FONT></DT><DD style="font-family:times;"><FONT SIZE=2> general economic conditions (including interest rates, foreign currency exchange rates, investment or credit market conditions, crude oil
prices, costs of aircraft fuel and energy refining capacity in relevant markets); </FONT><FONT SIZE=2>
<BR><BR></FONT></DD><DT style='font-family:times;margin-bottom:-11pt;'><FONT SIZE=2>&#149;</FONT></DT><DD style="font-family:times;"><FONT SIZE=2> risks of doing business globally, including instability and political developments that may impact our operations in certain countries; </FONT> <FONT SIZE=2>
<BR><BR></FONT></DD><DT style='font-family:times;margin-bottom:-11pt;'><FONT SIZE=2>&#149;</FONT></DT><DD style="font-family:times;"><FONT SIZE=2> demand for travel and the impact that global economic and political conditions have on customer travel patterns; </FONT> <FONT SIZE=2>
<BR><BR></FONT></DD><DT style='font-family:times;margin-bottom:-11pt;'><FONT SIZE=2>&#149;</FONT></DT><DD style="font-family:times;"><FONT SIZE=2> our capacity decisions and the capacity decisions of our competitors; </FONT><FONT SIZE=2>
<BR><BR></FONT></DD><DT style='font-family:times;margin-bottom:-11pt;'><FONT SIZE=2>&#149;</FONT></DT><DD style="font-family:times;"><FONT SIZE=2> competitive pressures on pricing and on demand; </FONT><FONT SIZE=2>
<BR><BR></FONT></DD><DT style='font-family:times;margin-bottom:-11pt;'><FONT SIZE=2>&#149;</FONT></DT><DD style="font-family:times;"><FONT SIZE=2> changes in aircraft fuel prices; </FONT><FONT SIZE=2>
<BR><BR></FONT></DD><DT style='font-family:times;margin-bottom:-11pt;'><FONT SIZE=2>&#149;</FONT></DT><DD style="font-family:times;"><FONT SIZE=2> disruptions in our supply of aircraft fuel; </FONT><FONT SIZE=2>
<BR><BR></FONT></DD><DT style='font-family:times;margin-bottom:-11pt;'><FONT SIZE=2>&#149;</FONT></DT><DD style="font-family:times;"><FONT SIZE=2> our ability to cost-effectively hedge against increases in the price of aircraft fuel, if we decide to do so; </FONT> <FONT SIZE=2>
<BR><BR></FONT></DD><DT style='font-family:times;margin-bottom:-11pt;'><FONT SIZE=2>&#149;</FONT></DT><DD style="font-family:times;"><FONT SIZE=2> the effects of any technology failures, cybersecurity or significant data breaches; </FONT><FONT SIZE=2>
<BR><BR></FONT></DD><DT style='font-family:times;margin-bottom:-11pt;'><FONT SIZE=2>&#149;</FONT></DT><DD style="font-family:times;"><FONT SIZE=2> disruptions to services provided by third-party service providers; </FONT></DD></DL>
</UL>
<P ALIGN="CENTER" style="font-family:times;"><FONT SIZE=2>S-iii</FONT></P>

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<DL compact>
<DT style='font-family:times;margin-bottom:-11pt;'><FONT SIZE=2>&#149;</FONT></DT><DD style="font-family:times;"><FONT SIZE=2> potential reputational or other impact from adverse events involving our aircraft or operations, the aircraft or operations of our regional
carriers or our code share partners or the aircraft or operations of another airline; </FONT><FONT SIZE=2>
<BR><BR></FONT></DD><DT style='font-family:times;margin-bottom:-11pt;'><FONT SIZE=2>&#149;</FONT></DT><DD style="font-family:times;"><FONT SIZE=2> our ability to attract and retain customers; </FONT><FONT SIZE=2>
<BR><BR></FONT></DD><DT style='font-family:times;margin-bottom:-11pt;'><FONT SIZE=2>&#149;</FONT></DT><DD style="font-family:times;"><FONT SIZE=2> the effects of any terrorist attacks, international hostilities or other security events, or the fear of such events; </FONT> <FONT SIZE=2>
<BR><BR></FONT></DD><DT style='font-family:times;margin-bottom:-11pt;'><FONT SIZE=2>&#149;</FONT></DT><DD style="font-family:times;"><FONT SIZE=2> the mandatory grounding of aircraft in our fleet; </FONT><FONT SIZE=2>
<BR><BR></FONT></DD><DT style='font-family:times;margin-bottom:-11pt;'><FONT SIZE=2>&#149;</FONT></DT><DD style="font-family:times;"><FONT SIZE=2> disruptions to our regional network as a result of the COVID-19 pandemic or otherwise; </FONT><FONT SIZE=2>
<BR><BR></FONT></DD><DT style='font-family:times;margin-bottom:-11pt;'><FONT SIZE=2>&#149;</FONT></DT><DD style="font-family:times;"><FONT SIZE=2> the impact of regulatory, investigative and legal proceedings and legal compliance risks; </FONT><FONT SIZE=2>
<BR><BR></FONT></DD><DT style='font-family:times;margin-bottom:-11pt;'><FONT SIZE=2>&#149;</FONT></DT><DD style="font-family:times;"><FONT SIZE=2> the success of our investments in other airlines, including in other parts of the world, which involve significant challenges and risks,
particularly given the impact of the COVID-19 pandemic; </FONT><FONT SIZE=2>
<BR><BR></FONT></DD><DT style='font-family:times;margin-bottom:-11pt;'><FONT SIZE=2>&#149;</FONT></DT><DD style="font-family:times;"><FONT SIZE=2> industry consolidation or changes in airline alliances; </FONT><FONT SIZE=2>
<BR><BR></FONT></DD><DT style='font-family:times;margin-bottom:-11pt;'><FONT SIZE=2>&#149;</FONT></DT><DD style="font-family:times;"><FONT SIZE=2> the ability of other air carriers with whom we have alliances or partnerships to provide the services contemplated by the respective
arrangements with such carriers; </FONT><FONT SIZE=2>
<BR><BR></FONT></DD><DT style='font-family:times;margin-bottom:-11pt;'><FONT SIZE=2>&#149;</FONT></DT><DD style="font-family:times;"><FONT SIZE=2> costs associated with any modification or termination of our aircraft orders; </FONT><FONT SIZE=2>
<BR><BR></FONT></DD><DT style='font-family:times;margin-bottom:-11pt;'><FONT SIZE=2>&#149;</FONT></DT><DD style="font-family:times;"><FONT SIZE=2> disruptions in the availability of aircraft, parts or support from our suppliers; </FONT><FONT SIZE=2>
<BR><BR></FONT></DD><DT style='font-family:times;margin-bottom:-11pt;'><FONT SIZE=2>&#149;</FONT></DT><DD style="font-family:times;"><FONT SIZE=2> our ability to maintain satisfactory labor relations and the results of any collective bargaining agreement process with our union groups; </FONT> <FONT SIZE=2>
<BR><BR></FONT></DD><DT style='font-family:times;margin-bottom:-11pt;'><FONT SIZE=2>&#149;</FONT></DT><DD style="font-family:times;"><FONT SIZE=2> any disruptions to operations due to any potential actions by our labor groups; </FONT><FONT SIZE=2>
<BR><BR></FONT></DD><DT style='font-family:times;margin-bottom:-11pt;'><FONT SIZE=2>&#149;</FONT></DT><DD style="font-family:times;"><FONT SIZE=2> labor costs; </FONT><FONT SIZE=2>
<BR><BR></FONT></DD><DT style='font-family:times;margin-bottom:-11pt;'><FONT SIZE=2>&#149;</FONT></DT><DD style="font-family:times;"><FONT SIZE=2> the impact of any management changes; </FONT><FONT SIZE=2>
<BR><BR></FONT></DD><DT style='font-family:times;margin-bottom:-11pt;'><FONT SIZE=2>&#149;</FONT></DT><DD style="font-family:times;"><FONT SIZE=2> extended interruptions or disruptions in service at major airports where we operate; </FONT><FONT SIZE=2>
<BR><BR></FONT></DD><DT style='font-family:times;margin-bottom:-11pt;'><FONT SIZE=2>&#149;</FONT></DT><DD style="font-family:times;"><FONT SIZE=2> U.S. or foreign governmental legislation, regulation and other actions (including Open Skies agreements, environmental regulations and the
United Kingdom's withdrawal from the European Union); </FONT><FONT SIZE=2>
<BR><BR></FONT></DD><DT style='font-family:times;margin-bottom:-11pt;'><FONT SIZE=2>&#149;</FONT></DT><DD style="font-family:times;"><FONT SIZE=2> the seasonality of the airline industry; </FONT><FONT SIZE=2>
<BR><BR></FONT></DD><DT style='font-family:times;margin-bottom:-11pt;'><FONT SIZE=2>&#149;</FONT></DT><DD style="font-family:times;"><FONT SIZE=2> weather conditions; </FONT><FONT SIZE=2>
<BR><BR></FONT></DD><DT style='font-family:times;margin-bottom:-11pt;'><FONT SIZE=2>&#149;</FONT></DT><DD style="font-family:times;"><FONT SIZE=2> our ability to realize the full value of our intangible assets and long-lived assets; </FONT><FONT SIZE=2>
<BR><BR></FONT></DD><DT style='font-family:times;margin-bottom:-11pt;'><FONT SIZE=2>&#149;</FONT></DT><DD style="font-family:times;"><FONT SIZE=2> any impact to our reputation or brand image; and </FONT><FONT SIZE=2>
<BR><BR></FONT></DD><DT style='font-family:times;margin-bottom:-11pt;'><FONT SIZE=2>&#149;</FONT></DT><DD style="font-family:times;"><FONT SIZE=2> those factors discussed or referred to in "Risk Factors" in this prospectus supplement and in our periodic filings with the SEC. </FONT></DD></DL>
</UL>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;We
make these statements under the protection afforded by Section&nbsp;27A of the Securities Act and Section&nbsp;21E of the Securities Exchange Act of 1934, as amended (the
"Exchange Act"). Because forward-looking statements are subject to assumptions and uncertainties, actual results, performance or achievements may differ materially from those expressed or implied by
such forward-looking statements. You are cautioned not to place undue reliance on such statements, which speak only as of the date such statements are made. Except to the extent required by applicable
law or regulation, we undertake no obligation to revise or update any forward-looking statement, or to make any other forward-looking statements, whether as a result of new information, future events
or otherwise. </FONT></P>

<P ALIGN="CENTER" style="font-family:times;"><FONT SIZE=2>S-iv</FONT></P>

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<P style="font-family:times;"><FONT SIZE=2><BR></FONT></P>

<P style="font-family:times;"><FONT SIZE=2><I> </i></font></p>
<DIV style="width:100%;box-sizing:border-box;border:#000000 solid 1.0pt;padding-top:12.0pt;padding-right:12.0pt;padding-bottom:12.0pt;padding-left:12.0pt;">
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<A NAME="toc_ca15401_1"> </A>
<BR></FONT><FONT SIZE=2><B>  PROSPECTUS SUPPLEMENT SUMMARY    <BR>    </B></FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</FONT><FONT SIZE=2><I>This summary highlights selected information about us and this offering appearing in this prospectus supplement, the
accompanying prospectus and the documents incorporated or deemed incorporated by reference herein and therein. This summary may not contain all of the information that you should consider before
making an investment decision. You should read carefully the more detailed information included or referred to under the heading "Risk Factors" of this prospectus supplement and the other information
included in this prospectus supplement, the accompanying prospectus, the documents incorporated or deemed incorporated by reference herein and therein, and any related free writing prospectus before
deciding to invest in our common stock.</I></FONT></P>

<P style="font-family:times;;margin-left:10.0pt;text-indent:-10.0pt;"><FONT SIZE=2><B>


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United Airlines  </B></FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;United Airlines Holdings,&nbsp;Inc. ("UAL") is a holding company, and its principal subsidiary is United Airlines,&nbsp;Inc.
("United"). United transports people and cargo throughout North America and to destinations in Asia, Europe, Africa, the Pacific, the Middle East and Latin America. The principal executive offices of
UAL and United are located at 233 S. Wacker Drive, Chicago, Illinois 60606, telephone (872)&nbsp;825-4000. </FONT></P>
 </DIV>
 <P ALIGN="CENTER" style="font-family:times;"><FONT SIZE=2>S-1</FONT></P>

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<P style="font-family:times;"><FONT SIZE=2>&nbsp;<BR></FONT></P>


<P style="font-family:times;"><FONT SIZE=2><I> </i></font></p>
<DIV style="width:100%;box-sizing:border-box;border:#000000 solid 1.0pt;padding-top:12.0pt;padding-right:12.0pt;padding-bottom:12.0pt;padding-left:12.0pt;">
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<A NAME="toc_cc15401_1"> </A>
<BR></FONT><FONT SIZE=2><B>  The Offering    <BR>    </B></FONT></P>
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<TR VALIGN="TOP">
<TD style="font-family:times;"><FONT SIZE=2>Common stock offered by us</FONT></TD>
<TD style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD VALIGN="BOTTOM" style="font-family:times;"><FONT SIZE=2>Up to 28,000,000 shares.</FONT></TD>
</TR>
<TR VALIGN="TOP">
<TD style="font-family:times;"><BR><FONT SIZE=2>Use of proceeds</FONT></TD>
<TD style="font-family:times;"><FONT SIZE=2><BR>&nbsp;</FONT></TD>
<TD VALIGN="BOTTOM" style="font-family:times;"><BR><FONT SIZE=2>We intend to use the net proceeds from this offering for general corporate purposes. See "Use of Proceeds."</FONT></TD>
</TR>
<TR VALIGN="TOP">
<TD style="font-family:times;"><BR><FONT SIZE=2>Risk factors</FONT></TD>
<TD style="font-family:times;"><FONT SIZE=2><BR>&nbsp;</FONT></TD>
<TD VALIGN="BOTTOM" style="font-family:times;"><BR><FONT SIZE=2>Investing in our common stock involves certain risks. See "Risk Factors" on page&nbsp;S-3 of this prospectus supplement and the "Risk Factors" section contained in our most recent <A HREF="http://www.sec.gov/Archives/edgar/data/100517/000010051720000010/ual201910k.htm">Annual Report on Form&nbsp;10-K</A>, as updated by subsequent Quarterly Reports on Form&nbsp;10-Q and other reports filed by us with the SEC as described in
"Incorporation of Certain Documents by Reference" to read about factors you should consider before investing in our common stock.</FONT></TD>
</TR>
<TR VALIGN="BOTTOM">
<TD VALIGN="TOP" style="font-family:times;"><BR><FONT SIZE=2>Nasdaq Global Select Market symbol</FONT></TD>
<TD VALIGN="TOP" style="font-family:times;"><FONT SIZE=2><BR>&nbsp;</FONT></TD>
<TD style="font-family:times;"><BR><FONT SIZE=2>"UAL"</FONT></TD>
</TR>
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 <P ALIGN="CENTER" style="font-family:times;"><FONT SIZE=2>S-2</FONT></P>

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<P ALIGN="CENTER" style="font-family:times;"><FONT SIZE=2><A NAME="da15401_risk_factors"> </A>
<A NAME="toc_da15401_1"> </A>
<BR></FONT><FONT SIZE=2><B>  RISK FACTORS    <BR>    </B></FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</FONT><FONT SIZE=2><I>You should carefully consider the risks and uncertainties described below, together with all of the other information
included in or incorporated by reference into this prospectus supplement, including the "Risk Factors" section contained in our most recent
<A HREF="http://www.sec.gov/Archives/edgar/data/100517/000010051720000010/ual201910k.htm">Annual Report on Form 10-K</A>, as updated by subsequent Quarterly Reports on Form 10-Q
and other reports filed by us with the SEC (which are incorporated by reference herein) before purchasing the shares of our common stock. If any of these risks actually occurs, our business, financial
condition or results of operations could be materially adversely affected. As a result, the market value of the shares could decline and you could lose part or all of your
investment.</I></FONT></P>

<P style="font-family:times;;margin-left:10.0pt;text-indent:-10.0pt;"><FONT SIZE=2><B>


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Risk Factors Relating to UAL's Common Stock  </B></FONT></P>

<P style="font-family:times;;margin-left:0pt;text-indent:-0pt;"><FONT SIZE=2><B><I>


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Certain provisions of our amended and restated certificate of incorporation (the "certificate of
incorporation") and amended and restated bylaws (the "bylaws," and together with the certificate of incorporation, the "Governance Documents") or Delaware law could discourage or delay changes to our
board of directors (the "Board"), takeover attempts or other changes of control, which could reduce the market price of our common stock.  </I></B></FONT></P>


<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Certain provisions of our Governance Documents may make it difficult for stockholders to change the composition of the Board and may discourage
takeover attempts that some of its stockholders may consider beneficial. </FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Certain
provisions of the Governance Documents (including the Board's power, without stockholder approval, to designate the terms of one or more series of preferred stock and issue
shares of preferred stock, limitations on stockholder action by written consent, limitations on calling special stockholder meetings, advance notice requirements for stockholder nominations and
proposals and limitations on proxy access) may also have the effect of delaying or preventing changes in control if the Board determines that such changes in control are not in the best interests of
UAL and its stockholders. </FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;These
provisions of the Governance Documents are not intended to prevent a takeover, but are intended to protect and maximize the value of our stockholders' interests. While these
provisions have the effect of encouraging persons seeking to acquire control of UAL to negotiate with the Board, they could enable the Board to prevent a transaction that some, or a majority, of its
stockholders might believe to be in their best interests and, in that case, may prevent or discourage attempts to remove and replace incumbent directors. </FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;In
addition, we are a Delaware corporation, and the anti-takeover provisions of the Delaware General Corporation Law (the "DGCL") impose various impediments to the ability
of a third party to acquire control of us, even if a change in control would be beneficial to our existing stockholders. These provisions could also impede a merger, takeover or other business
combination involving us or discourage a potential acquirer from making a tender offer for our common stock, engaging in a proxy fight or conducting open market purchases, which, under certain
circumstances, could reduce the market price of our common stock. </FONT></P>

<P style="font-family:times;;margin-left:0pt;text-indent:-0pt;"><FONT SIZE=2><B><I>


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The price of our common stock may fluctuate significantly, and you could lose all or part of your investment
in the common stock.  </I></B></FONT></P>


<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Volatility in the market price of our common stock may prevent you from being able to sell the shares at or above the price you paid for them.
The market price of our common stock could fluctuate significantly for various reasons which include:</FONT></P>

<UL>
<DL compact>
<DT style='font-family:times;margin-bottom:-11pt;'><FONT SIZE=2>&#149;</FONT></DT><DD style="font-family:times;"><FONT SIZE=2> the market reaction to the COVID-19 pandemic and our responses thereto; </FONT><FONT SIZE=2>
<BR><BR></FONT></DD><DT style='font-family:times;margin-bottom:-11pt;'><FONT SIZE=2>&#149;</FONT></DT><DD style="font-family:times;"><FONT SIZE=2> changes in the prices or availability of oil or jet fuel; </FONT></DD></DL>
</UL>
<P ALIGN="CENTER" style="font-family:times;"><FONT SIZE=2>S-3</FONT></P>

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<DT style='font-family:times;margin-bottom:-11pt;'><FONT SIZE=2>&#149;</FONT></DT><DD style="font-family:times;"><FONT SIZE=2> our quarterly or annual earnings or those of other companies in our industry; </FONT><FONT SIZE=2>
<BR><BR></FONT></DD><DT style='font-family:times;margin-bottom:-11pt;'><FONT SIZE=2>&#149;</FONT></DT><DD style="font-family:times;"><FONT SIZE=2> the public's reaction to our press releases, our other public announcements and our filings with the SEC; </FONT> <FONT SIZE=2>
<BR><BR></FONT></DD><DT style='font-family:times;margin-bottom:-11pt;'><FONT SIZE=2>&#149;</FONT></DT><DD style="font-family:times;"><FONT SIZE=2> changes in our earnings or recommendations by research analysts who track our common stock or the stock of other airlines; </FONT> <FONT SIZE=2>
<BR><BR></FONT></DD><DT style='font-family:times;margin-bottom:-11pt;'><FONT SIZE=2>&#149;</FONT></DT><DD style="font-family:times;"><FONT SIZE=2> changes in general conditions in the United States and global economy, financial markets or airline industry, including those resulting from
changes in fuel prices or fuel shortages, war, incidents of terrorism, pandemics or responses to such events; </FONT><FONT SIZE=2>
<BR><BR></FONT></DD><DT style='font-family:times;margin-bottom:-11pt;'><FONT SIZE=2>&#149;</FONT></DT><DD style="font-family:times;"><FONT SIZE=2> changes in the competitive landscape for the airline industry, including any changes resulting from industry consolidation whether or not
involving our Company; </FONT><FONT SIZE=2>
<BR><BR></FONT></DD><DT style='font-family:times;margin-bottom:-11pt;'><FONT SIZE=2>&#149;</FONT></DT><DD style="font-family:times;"><FONT SIZE=2> our liquidity position; and </FONT><FONT SIZE=2>
<BR><BR></FONT></DD><DT style='font-family:times;margin-bottom:-11pt;'><FONT SIZE=2>&#149;</FONT></DT><DD style="font-family:times;"><FONT SIZE=2> the other risks described or referred to in these "Risk Factors." </FONT></DD></DL>
</UL>

<P style="font-family:times;"><FONT SIZE=2>In
addition, in recent periods, the stock market has experienced extreme declines and volatility. This volatility has had a significant negative impact on the market price of securities issued by many
companies, including us and other companies in our industry. </FONT></P>

<P style="font-family:times;;margin-left:0pt;text-indent:-0pt;"><FONT SIZE=2><B><I>


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The price of our common stock may be affected by the availability of shares for sale in the market and upon
exercise of warrants or options.  </I></B></FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The sale or availability for sale of substantial amounts of our common stock could adversely impact its price. Our certificate of incorporation
authorizes us to issue 1,000,000,000 shares of common stock. On June&nbsp;11, 2020, there were approximately 290,446,819 shares of common stock outstanding. Accordingly, a substantial number of
shares of our common stock are outstanding and available for sale in the market. In addition, we may be obligated to issue additional shares of common stock upon the conversion of outstanding
convertible securities or in connection with employee benefit plans (including any equity incentive plans and employee stock purchase plans). For instance, in connection with the receipt of financial
assistance under the Payroll Support Program of the CARES Act, we expect to issue to the U.S. Treasury Department in total warrants to purchase up to approximately 4.6&nbsp;million shares of UAL
common stock at a strike price of $31.50 per share (which was
the closing price of UAL's common stock on The Nasdaq Stock Market on April&nbsp;9, 2020). In addition, we may be required to issue warrants to purchase up to an additional
14.2&nbsp;million shares of UAL common stock if we borrow the full amount of $4.5&nbsp;billion from the U.S. Treasury Department that we expect to be available to the Company under the Loan
Program of the CARES Act. </FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;In
the future, we may decide to raise capital through offerings of our common stock, additional securities convertible into or exchangeable for common stock, or rights to acquire these
securities or common stock. The issuance of additional shares of common stock or additional securities convertible into or exchangeable for common stock could result in dilution of existing
stockholders' equity interests in the Company. Issuances of substantial amounts of common stock, or the perception that such issuances could occur, may adversely affect prevailing market prices for
our common stock and we cannot predict the effect this dilution may have on the price of our common stock. </FONT></P>

<P style="font-family:times;;margin-left:0pt;text-indent:-0pt;"><FONT SIZE=2><B><I>


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Our certificate of incorporation limits voting rights of certain foreign persons.  </I></B></FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Our certificate of incorporation limits the voting rights of persons holding any of our equity securities who are not "citizens of the United
States," as defined in Section&nbsp;40102(a)(15) of Title 49 United States Code, to 24.9% (or any other maximum percentage as the Section or any substitute or replacement legislation may provide) of
the aggregate votes of all equity securities outstanding. This restriction is applied pro rata among all holders of equity securities who fail to qualify as "citizens of </FONT></P>

<P ALIGN="CENTER" style="font-family:times;"><FONT SIZE=2>S-4</FONT></P>

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<P style="font-family:times;"><FONT SIZE=2>the
United States," based on the number of votes to which the underlying securities are entitled. Accordingly, if you are not a "citizen of the United States," any shares of common stock that you
purchase may be subject to voting restrictions. </FONT></P>

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You may not receive dividends on the common stock.  </I></B></FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Holders of our common stock are entitled to receive only such dividends as the Board may declare out of funds legally available for such
payments. We have historically not paid cash dividends and have no plans to pay cash dividends on our common stock. We are incorporated in Delaware and governed by the DGCL. Delaware law allows a
corporation to pay dividends only out of
surplus, as determined under Delaware law or, if there is no surplus, out of net profits for the fiscal year in which the dividend was declared and for the preceding fiscal year. Under Delaware law,
however, we cannot pay dividends out of net profits if, after we pay the dividend, our capital would be less than the capital represented by the outstanding stock of all classes having a preference
upon the distribution of assets. Furthermore, holders of our common stock may be subject to the prior dividend rights of holders of our preferred stock or the depositary shares representing such
preferred stock then outstanding. Additionally, under the terms of our amended credit and guaranty agreement, our ability to pay distributions on, or repurchase, our common stock is restricted. </FONT></P>


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The price of our common stock historically has been volatile. This volatility may affect the price at which
you could sell the common stock, and the sale of substantial amounts of our common stock could adversely affect the price of our common stock.  </I></B></FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The closing price for our common stock has varied between a high of $95.28 on July&nbsp;18, 2019 and a low of $19.92 on May&nbsp;15, 2020 in
the twelve-month period ended on May&nbsp;31, 2020. This volatility may affect the price at which you could sell the common stock, and the sale of substantial amounts of our common stock could
adversely affect the price of our common stock. Our stock price is likely to continue to be volatile and subject to significant price and volume fluctuations in response to market and other factors,
including the market reaction to the COVID-19 pandemic; variations in our quarterly operating results from our expectations or those of securities analysts or investors; downward revisions in
securities analysts' estimates; our liquidity position; and announcements by us or our competitors of significant acquisitions, strategic partnerships, joint ventures, capital commitments or other
significant corporate actions. </FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;In
addition, the sale of substantial amounts of our common stock could adversely impact its price. As of June&nbsp;11, 2020, we had outstanding approximately 290,446,819 shares of our
common stock and options to purchase approximately 689,200 shares of our common stock (of which approximately 187,145 were exercisable as of that date). In addition, we expect to issue in total
warrants to purchase up to approximately 4.6&nbsp;million shares of UAL common stock in connection with the receipt of financial assistance under the Payroll Support Program under the CARES Act and
may be required to issue warrants to purchase up to an additional 14.2&nbsp;million shares of UAL common stock if we borrow the full amount of $4.5&nbsp;billion from the U.S.&nbsp;Treasury
Department that we expect to be available to the Company under the Loan Program under the CARES Act. The sale or the availability for sale of a large number of shares of our common stock in the public
market could cause the price of our common stock to decline. </FONT></P>

<P ALIGN="CENTER" style="font-family:times;"><FONT SIZE=2>S-5</FONT></P>

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<BR></FONT><FONT SIZE=2><B>  USE OF PROCEEDS    <BR>    </B></FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;We intend to use the net proceeds from this offering for general corporate purposes. </FONT></P>

<P ALIGN="CENTER" style="font-family:times;"><FONT SIZE=2>S-6</FONT></P>

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<BR></FONT><FONT SIZE=2><B>  U.S. FEDERAL TAX CONSIDERATIONS FOR NON-U.S. STOCKHOLDERS    <BR>    </B></FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The following is a general discussion of the material U.S. federal income and certain estate tax consequences of the ownership and disposition
of shares of our common stock by a Non-U.S. Stockholder who purchases shares of our common stock during this offering. For purposes of this discussion, a "Non-U.S. Stockholder" is a beneficial owner
of our common stock that is treated for U.S. federal income tax purposes as:</FONT></P>

<UL>
<DL compact>
<DT style='font-family:times;margin-bottom:-11pt;'><FONT SIZE=2>&#149;</FONT></DT><DD style="font-family:times;"><FONT SIZE=2> an individual who is neither a citizen nor a resident of the United States; </FONT><FONT SIZE=2>
<BR><BR></FONT></DD><DT style='font-family:times;margin-bottom:-11pt;'><FONT SIZE=2>&#149;</FONT></DT><DD style="font-family:times;"><FONT SIZE=2> a corporation created or organized under the laws of a jurisdiction other than the United States, any state thereof or the District of
Columbia; </FONT><FONT SIZE=2>
<BR><BR></FONT></DD><DT style='font-family:times;margin-bottom:-11pt;'><FONT SIZE=2>&#149;</FONT></DT><DD style="font-family:times;"><FONT SIZE=2> an estate, other than an estate the income of which is subject to U.S. federal income taxation regardless of its source; or </FONT> <FONT SIZE=2>
<BR><BR></FONT></DD><DT style='font-family:times;margin-bottom:-11pt;'><FONT SIZE=2>&#149;</FONT></DT><DD style="font-family:times;"><FONT SIZE=2> a trust, other than a trust (i)&nbsp;the administration of which is subject to the primary supervision of a court within the United States
and which has one or more U.S. persons who have the authority to control all substantial decisions of the trust, or (ii)&nbsp;that has a valid election in effect under applicable U.S. Treasury
regulations to be treated as a United States person (within the meaning of Section&nbsp;7701(a)(30) of the U.S. Internal Revenue Code of 1986, as amended (the "Code")). </FONT></DD></DL>
</UL>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;This
discussion does not address the U.S. federal tax consequences to an entity treated as a partnership for U.S. federal income tax purposes or to persons investing through such an
entity. If an entity treated as a partnership holds our common stock, the tax treatment of a partner will generally depend on the status of the partner and the activities of the partnership. A partner
in a partnership considering an investment in our common stock should consult its own tax advisors as to the U.S. federal income and
estate tax consequences of being a partner in a partnership that purchases, owns or disposes of our common stock. </FONT></P>


<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;This
summary assumes that our common stock is held as a capital asset (generally, property held for investment). This summary is of a general nature and thus does not address all of the
U.S. federal income and estate tax considerations that might be relevant to a Non-U.S. Stockholder in light of its particular circumstances or to a Non-U.S. Stockholder subject to special treatment
under U.S. federal tax laws (such as banks, insurance companies, dealers in securities or other Non-U.S. Stockholders that generally mark their securities to market for U.S. federal income tax
purposes, foreign governments, international organizations, tax-exempt entities, "controlled foreign corporations," "passive foreign investment companies," regulated investment companies, real estate
investment trusts, certain former citizens or residents of the United States, or Non-U.S. Stockholders that hold our common stock as part of a straddle, hedging transaction, conversion transaction or
integrated transaction or that purchase or sell our common stock as part of a wash sale for U.S. federal income tax purposes). Furthermore, this summary does not discuss any aspects of U.S. federal
gift, state, local or non-U.S. taxation. This summary is based on current provisions of the Code, U.S. Treasury regulations promulgated or proposed thereunder, judicial opinions, published positions
of the U.S. Internal Revenue Service (the "IRS") and other applicable authorities, all of which are subject to change or differing interpretation, possibly with retroactive effect. Each prospective
purchaser of our common stock is advised to consult its own tax advisor with respect to the U.S. federal, state, local and non-U.S. tax consequences of purchasing, owning and disposing of our common
stock. No assurance exists that the IRS will not challenge any of the tax consequences described herein, and we have not obtained, nor do we intend to obtain, an opinion of counsel with respect to the
U.S. federal income or estate tax consequences to a Non-U.S. Stockholder of purchasing, owning and disposing of our common stock. </FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;PROSPECTIVE
INVESTORS CONSIDERING THE PURCHASE OF OUR COMMON STOCK SHOULD CONSULT THEIR OWN TAX ADVISORS CONCERNING THE APPLICATION OF </FONT></P>

<P ALIGN="CENTER" style="font-family:times;"><FONT SIZE=2>S-7</FONT></P>

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<P style="font-family:times;"><FONT SIZE=2>U.S.
FEDERAL TAX LAWS TO THEIR PARTICULAR SITUATIONS AS WELL AS ANY CONSEQUENCES ARISING UNDER THE LAWS OF ANY OTHER TAXING JURISDICTION AND ANY APPLICABLE TAX TREATY. </FONT></P>

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Distributions  </B></FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;If we make distributions on our common stock, the distributions will be dividends for U.S. federal income tax purposes to the extent paid from
current or accumulated earnings and
profits. To the extent distributions exceed our current and accumulated earnings and profits, they will constitute a return of capital that will first reduce a Non-U.S. Stockholder's basis in our
common stock (determined separately for each share), but not below zero, and then will be treated as gain from the sale of stock (as discussed further below). </FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Any
dividend paid to a Non-U.S. Stockholder with respect to our common stock generally will be subject to withholding tax at a 30% rate (or such lower rate specified by an applicable
income tax treaty). Generally, a Non-U.S. Stockholder must certify as to its eligibility for reduced withholding under an applicable income tax treaty on a properly completed IRS Form&nbsp;W-8BEN or
IRS Form&nbsp;W-8BEN-E, as applicable, in order to obtain the benefits of such treaty. A Non-U.S. Stockholder that does not timely provide the applicable withholding agent with the required
certification, but that qualifies for a reduced treaty rate, may obtain a refund of any excess amounts withheld by timely filing an appropriate claim for refund with the IRS. Non-U.S. Stockholders
should consult their own tax advisors regarding their possible entitlement to benefits under a tax treaty. </FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;If,
however, the Non-U.S. Stockholder provides a valid IRS Form&nbsp;W-8ECI, certifying that the dividend is effectively connected with the Non-U.S. Stockholder's conduct of a trade or
business within the United States, and otherwise complies with applicable certification requirements, the dividend will not be subject to the withholding tax described above. Instead, such dividend
will be subject to U.S. federal income tax in the manner described below under "Effectively Connected Income." </FONT></P>

<P style="font-family:times;;margin-left:10.0pt;text-indent:-10.0pt;"><FONT SIZE=2><B>


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Sale, Exchange or Other Taxable Disposition of Our Common Stock  </B></FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Except as otherwise discussed below, a Non-U.S. Stockholder generally will not be subject to U.S. federal income tax on any gain realized upon a
sale, exchange or other taxable disposition of our common stock unless (i)&nbsp;such gain is effectively connected with the Non-U.S. Stockholder's conduct of a U.S. trade or business (and, if an
income tax treaty applies, the gain is attributable to a permanent establishment or fixed base maintained by such Non-U.S. Stockholder in the United States), (ii)&nbsp;the Non-U.S. Stockholder is an
individual who is present in the United States for a period or periods aggregating 183&nbsp;days or more during the year in which such sale, exchange or other taxable disposition occurs and certain
other conditions are met, or (iii)&nbsp;we are or have been a "United States real property holding corporation" ("USRPHC") for U.S. federal income tax purposes at any time during the shorter of
(x)&nbsp;the five-year period ending on the date of such sale, exchange or other disposition and (y)&nbsp;such Non-U.S. Stockholder's holding period with respect to our common stock, and, provided
that our common stock is regularly traded on an established securities market within the meaning of applicable U.S. Treasury regulations, such Non-U.S. Stockholder has held, directly or
constructively, at any time during said period, more than 5% of our common stock. We do not believe that we are or will become a USRPHC; however, there can be no assurance in that regard. </FONT></P>


<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Gain
described in clause&nbsp;(i) immediately above will be subject to U.S. federal income tax in the manner described below under "Effectively Connected Income." A Non-U.S.
Stockholder described in clause&nbsp;(ii)
immediately above will be subject to tax at a 30% rate (or such lower rate specified by an applicable income tax treaty) on the net gain derived from the sale, exchange or other taxable disposition,
which may be offset by U.S.-source capital losses of the Non-U.S. Stockholder during the taxable year. </FONT></P>

<P ALIGN="CENTER" style="font-family:times;"><FONT SIZE=2>S-8</FONT></P>

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Effectively Connected Income  </B></FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Any dividend with respect to, or gain recognized upon a sale, exchange or other taxable disposition of, our common stock that is effectively
connected with a trade or business carried on by a Non-U.S. Stockholder within the United States (and, if an income tax treaty applies, that is attributable to a permanent establishment or fixed base
maintained by such Non-U.S. Stockholder in the United States) will be subject to U.S. federal income tax, based on the Non-U.S. Stockholder's net effectively connected income, generally in the same
manner as if the Non-U.S. Stockholder were a U.S. person for U.S. federal income tax purposes. If a dividend or gain is effectively connected with a U.S. trade or business of a Non-U.S. Stockholder
that is a corporation for U.S. federal income tax purposes, such corporate Non-U.S. Stockholder may also be subject to a "branch profits tax" on its effectively connected earnings and profits (subject
to certain adjustments) at a 30% rate (or such lower rate as may be specified by an applicable income tax treaty). Non-U.S. Stockholders should consult their own tax advisors regarding any applicable
tax treaties that may provide for different rules. </FONT></P>

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FATCA Withholding  </B></FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Under legislation commonly known as the Foreign Account Tax Compliance Act or "FATCA," a U.S. federal 30% withholding tax generally will be
imposed on dividends with respect to shares of our common stock paid to (i)&nbsp;a foreign financial institution (as defined in Section&nbsp;1471(d)(4) of the Code and the U.S. Treasury
regulations promulgated thereunder), unless the foreign financial institution enters into an agreement with the U.S. Treasury Department to collect and disclose certain information regarding its U.S.
account holders (including certain account holders that are foreign entities that have U.S. owners) and satisfies certain other requirements or is deemed to be compliant with the requirements of
FATCA, including pursuant to an intergovernmental agreement, and (ii)&nbsp;certain other non-U.S. entities, unless the entity provides the payor with certain information regarding certain direct and
indirect U.S. owners of the entity, or certifies that it has no such U.S. owners, and complies with certain other requirements. All Non-U.S. Stockholders generally will be required to furnish
certifications (generally on an IRS Form&nbsp;W-8BEN, IRS Form&nbsp;W-8BEN-E or IRS
Form&nbsp;W-8ECI) or other documentation to establish an exemption from withholding under FATCA. Even if a Non-U.S. Stockholder provides such certification, FATCA withholding will still apply where
our common stock is held through a non-U.S. broker (or other non-U.S. intermediary) that is not FATCA compliant. Under certain circumstances, a Non-U.S. Stockholder may be eligible for refunds or
credits of the tax. Non-U.S. Stockholders are encouraged to consult with their own tax advisors regarding the possible implications of FATCA on their investment in shares of our common stock,
including the potential applicability of any intergovernmental agreements entered into between the United States and countries in which such applicable Non-U.S. Stockholders are resident or maintain a
branch. </FONT></P>

<P style="font-family:times;;margin-left:10.0pt;text-indent:-10.0pt;"><FONT SIZE=2><B>


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Information Reporting and Backup Withholding  </B></FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Annual reporting to the IRS and to each Non-U.S. Stockholder will be required as to the amount of dividends paid to such Non-U.S. Stockholder
and the amount, if any, of tax withheld with respect to such dividends. This information may also be made available to the tax authorities in the Non-U.S. Stockholder's country of residence. Dividends
generally are not subject to "backup withholding" if the Non-U.S. Stockholder properly certifies as to its non-U.S. status (usually by completing an IRS Form&nbsp;W-8BEN, IRS Form&nbsp;W-8BEN-E or
IRS Form&nbsp;W-8ECI). </FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The
payment of the proceeds of the sale, exchange or other disposition of our common stock to or through the U.S. office of a broker will be subject to both backup withholding (currently
at a rate of 24%) and information reporting unless the Non-U.S. Stockholder certifies its non-U.S. status on IRS Form&nbsp;W-8BEN, IRS Form&nbsp;W-8BEN-E or IRS Form&nbsp;W-8ECI or otherwise
establishes an exemption. Information reporting requirements, but generally not backup withholding, will also generally apply to payments of the proceeds of a sale, exchange or other disposition of
our common stock by non-U.S. </FONT></P>

<P ALIGN="CENTER" style="font-family:times;"><FONT SIZE=2>S-9</FONT></P>

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<P style="font-family:times;"><FONT SIZE=2>offices
of U.S. brokers or non-U.S. brokers with certain types of relationships to the United States unless the Non-U.S. Stockholder certifies its non-U.S. status or otherwise establishes an
exemption. Certain Non-U.S. Holders (including corporations) are not subject to backup withholding and information reporting requirements. </FONT></P>


<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Backup
withholding is not an additional tax. Any amounts withheld under the backup withholding rules from payments made to a Non-U.S. Stockholder may be refunded or credited against such
Non-U.S. Stockholder's U.S. federal income tax liability, if any, provided that the required information is timely furnished to the IRS. </FONT></P>

<P style="font-family:times;;margin-left:10.0pt;text-indent:-10.0pt;"><FONT SIZE=2><B>


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Estate Tax  </B></FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;A Non-U.S. Stockholder who is an individual should note that shares of our common stock (i)&nbsp;owned and held by such individual or
(ii)&nbsp;otherwise includible in such individual's gross estate for U.S. federal estate tax purposes (for example, where such shares are owned and held by a trust funded by such individual and with
respect to which the individual has retained certain interests or powers), generally will be, absent an applicable treaty, treated as U.S.-situs property subject to U.S. federal estate tax.
Accordingly, Non-U.S. Stockholders who are individuals may be subject to U.S. federal estate tax on all or a portion of the value of our common stock owned, directly or indirectly, at the time of
their death. Prospective investors who are non-resident alien individuals (or entities includible in such an individual's gross estate for U.S. federal estate tax purposes) are urged to consult their
own tax advisors concerning the potential U.S. federal estate tax consequences of owning our common stock. </FONT></P>

<P ALIGN="CENTER" style="font-family:times;"><FONT SIZE=2>S-10</FONT></P>

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<P style="font-family:times;"><FONT SIZE=2><A HREF="#bg15401a_main_toc">Table of Contents</A> </FONT></P>

<P ALIGN="CENTER" style="font-family:times;"><FONT SIZE=2><A NAME="de15401_plan_of_distribution"> </A>
<A NAME="toc_de15401_1"> </A>
<BR></FONT><FONT SIZE=2><B>  PLAN OF DISTRIBUTION    <BR>    </B></FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;We have entered into an equity distribution agreement with Citigroup Global Markets&nbsp;Inc., BofA Securities,&nbsp;Inc. and J.P. Morgan
Securities&nbsp;LLC as managers, under which we are permitted to offer and sell up to 28,000,000 shares of our common stock from time to time. Sales of our common stock under this prospectus
supplement, if any, will be made at market prices in transactions that are deemed to be "at the market offerings," as defined in Rule&nbsp;415(a)(4) promulgated under the Securities Act, including
sales made directly on or through the Nasdaq, the existing trading market for our common stock. The managers will not engage in any prohibited stabilizing transactions with respect to our common
stock. </FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Under
the terms of the equity distribution agreement, we also may sell shares of our common stock to a manager as principal for its own account at a price agreed upon at the time of
sale. If we sell shares of our common stock to a manager as principal, we will enter into a separate terms agreement with
such manager, and we will describe any such agreement in a separate prospectus supplement or pricing supplement. </FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;We
will designate the maximum number of shares of our common stock to be sold through a manager on a daily basis or otherwise as we and such manager agree and the minimum price per share
at which such shares may be sold. We will submit orders to only one manager relating to the sale of shares of our common stock on any given day. Subject to the terms and conditions of the equity
distribution agreement, the applicable manager will use its commercially reasonable efforts consistent with its normal trading and sales practices to sell on our behalf all of the designated shares of
common stock. We may instruct such manager not to sell any shares if the sales cannot be effected at or above the price designated by us in any such instruction. We or such manager, with respect to
itself only, may suspend the offering of shares of our common stock at any time by notifying the other party in writing. </FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The
managers will provide to us written confirmation following the close of trading on the Nasdaq each day in which shares of our common stock are sold under the equity distribution
agreement. Each confirmation will include the number of shares of our common stock sold on that day, the aggregate gross sales proceeds and the net proceeds to us. We will report at least quarterly
the number of shares of common stock sold through the managers under the equity distribution agreement, the net proceeds to us (before expenses) and the commissions of the managers in connection with
the sales of our common stock. </FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;We
will pay each manager a commission of up to 1.0% of the gross sales price per share of our common stock sold through such manager as our agent under the equity distribution agreement.
Because there is no minimum offering amount required as a condition to close this offering, the actual total public offering amount, commissions and proceeds to us, if any, are not determinable at
this time. We have also agreed to reimburse the managers for certain specified expenses, including the fees and disbursements of its legal counsel. We estimate that the total expenses for the
offering, excluding compensation and reimbursements payable to the managers under the terms of the equity distribution agreement, will be approximately $1.0&nbsp;million. </FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Settlement
for sales of shares of our common stock will occur on the second business day following the date on which any sales were made, or on some other date that is agreed upon by us
and the managers in connection with a particular transaction, in return for payment of the net proceeds to us. There is no arrangement for funds to be received in an escrow, trust or similar
arrangement. </FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;If
we or any of the managers have reason to believe that our common stock is no longer an "actively-traded security" as defined under Rule&nbsp;101(c)(l) of Regulation&nbsp;M under
the Exchange Act, that party will promptly notify the others and sales of common stock pursuant to the equity distribution agreement or any terms agreement will be suspended until in our collective
judgment Rule&nbsp;101(c)(1) or another exemptive provision has been satisfied. </FONT></P>

<P ALIGN="CENTER" style="font-family:times;"><FONT SIZE=2>S-11</FONT></P>

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<P style="font-family:times;"><FONT SIZE=2><A HREF="#bg15401a_main_toc">Table of Contents</A></FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The
offering of common stock pursuant to the equity distribution agreement will terminate upon the earliest of (1)&nbsp;the sale of all common stock subject to the equity distribution
agreement, (2)&nbsp;the termination of the equity distribution agreement by us or by any of the managers, with respect to such manager only or (3)&nbsp;June&nbsp;30, 2022. </FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The
managers will use commercially reasonable efforts, consistent with their normal trading and sales practices, to sell on our behalf all shares of our common stock under the terms and
subject to the conditions set forth in the equity distribution agreement. In connection with the sale of shares of our common stock on our behalf, a manager may be deemed to be an "underwriter" within
the meaning of the Securities Act and the compensation paid to such manager may be deemed to be underwriting commissions or discounts. We have agreed to provide indemnification and contribution to the
managers against certain liabilities, including civil liabilities under the Securities Act. </FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The
managers and/or affiliates of the managers have, from time to time, performed, and may in the future perform, various financial advisory and commercial and investment banking
services for us and our affiliates, for which they have received and in the future will receive customary compensation and expense reimbursement. Affiliates of the managers may be lenders under our
credit facility, either currently or in the future, and affiliates of the managers may hold our securities. To the extent we use proceeds from this offering to repay indebtedness under our credit
facilities or to repurchase or redeem our securities, such affiliates may receive proceeds from this offering. The managers and their affiliates may also make investment recommendations and/or publish
or express independent research views in respect of our securities or financial instruments related to our securities and may hold, or recommend to clients that they acquire, long and/or short
positions in such securities and instruments. </FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;In
addition, an affiliate of J.P. Morgan Securities&nbsp;LLC is a merchant processing bank and a counterparty to certain agreements with us to process customer credit card transactions
for the sale of air travel and other services. Under certain circumstances, such affiliate may have the right to require that we establish additional cash or other collateral reserves or additional
withholding of payments related to receivables collected if we do not maintain certain minimum levels of unrestricted cash, cash equivalents and short-term investments. </FONT></P>

<P ALIGN="CENTER" style="font-family:times;"><FONT SIZE=2>S-12</FONT></P>

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<P style="font-family:times;"><FONT SIZE=2><A HREF="#bg15401a_main_toc">Table of Contents</A></FONT></P>

<P ALIGN="CENTER" style="font-family:times;"><FONT SIZE=2><A NAME="de15401_where_you_can_find_more_information"> </A>
<A NAME="toc_de15401_2"> </A>
<BR></FONT><FONT SIZE=2><B>  WHERE YOU CAN FIND MORE INFORMATION    <BR>    </B></FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;We file annual, quarterly and current reports, proxy statements and other information with the SEC. Our SEC filings are available to the public
at the SEC's website at </FONT><FONT SIZE=2><I>www.sec.gov</I></FONT><FONT SIZE=2>. These documents may also be accessed on our website at </FONT> <FONT SIZE=2><I>http://ir.united.com</I></FONT><FONT SIZE=2>. We are not incorporating by reference
into this prospectus supplement or the accompanying prospectus the information on our
website, and you should not consider it to be a part hereof or thereof. Information may also be obtained from us at United Airlines Holdings,&nbsp;Inc., 233 S. Wacker Drive, Chicago, Illinois 60606,
telephone (872)&nbsp;825-4000. </FONT></P>

<P ALIGN="CENTER" style="font-family:times;"><FONT SIZE=2><A NAME="de15401_incorporation_of_certain_documents_by_reference"> </A>
<A NAME="toc_de15401_3"> </A>
<BR></FONT><FONT SIZE=2><B>  INCORPORATION OF CERTAIN DOCUMENTS BY REFERENCE    <BR>    </B></FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The SEC allows us to "incorporate by reference" certain information into this prospectus supplement and the accompanying prospectus from certain
documents that we file with the SEC. By incorporating by reference, we are disclosing important information to you by referring you to documents we file separately with the SEC. The information
incorporated by reference is deemed to be part of this prospectus supplement and the accompanying prospectus, except for information incorporated by reference that is modified or superseded by
information contained in this prospectus supplement or the accompanying prospectus or in any other subsequently filed document that also is incorporated by reference herein or therein. These documents
contain important information about us, our business and our finances. The following documents previously filed with the SEC are incorporated by reference into this prospectus supplement and the
accompanying prospectus, except for any document or portion thereof deemed to be "furnished" and not filed in accordance with SEC rules:</FONT></P>

<UL>
<DL compact>
<DT style='font-family:times;margin-bottom:-11pt;'><FONT SIZE=2>&#149;</FONT></DT><DD style="font-family:times;"><FONT SIZE=2>  <A HREF="http://www.sec.gov/Archives/edgar/data/100517/000010051720000010/ual201910k.htm">our Annual Report on Form&nbsp;10-K for
the year ended December&nbsp;31, 2019 filed with the SEC on February&nbsp;25, 2020</A>; </FONT><FONT SIZE=2>
<BR><BR></FONT></DD><DT style='font-family:times;margin-bottom:-11pt;'><FONT SIZE=2>&#149;</FONT></DT><DD style="font-family:times;"><FONT SIZE=2>  <A HREF="http://www.sec.gov/Archives/edgar/data/100517/000010051720000037/ual10q03312020.htm">our Quarterly Report on
Form&nbsp;10-Q for the quarter ended March&nbsp;31, 2020 filed with the SEC on May&nbsp;4, 2020;</A></FONT><FONT SIZE=2>
<BR><BR></FONT></DD><DT style='font-family:times;margin-bottom:-11pt;'><FONT SIZE=2>&#149;</FONT></DT><DD style="font-family:times;"><FONT SIZE=2> our Current Reports on Form&nbsp;8-K filed with the SEC on
<A HREF="http://www.sec.gov/Archives/edgar/data/100517/000119312520070901/d870424d8k.htm">March&nbsp;12, 2020</A>,
<A HREF="http://www.sec.gov/Archives/edgar/data/100517/000119312520086944/d866247d8k.htm">March&nbsp;26, 2020</A>,
<A HREF="http://www.sec.gov/Archives/edgar/data/100517/000119312520105262/d916715d8k.htm">April&nbsp;13, 2020</A>,
<A HREF="http://www.sec.gov/Archives/edgar/data/100517/000010051720000026/ual0421208k.htm">April&nbsp;21, 2020</A>,
<A HREF="http://www.sec.gov/Archives/edgar/data/100517/000110465920050368/tm2016500-1_8k.htm">April&nbsp;23, 2020</A>,
<A HREF="http://www.sec.gov/Archives/edgar/data/100517/000110465920051056/tm2016679d1_8k.htm">April&nbsp;24, 2020</A>,
<A HREF="http://www.sec.gov/Archives/edgar/data/100517/000119312520134426/d898805d8k.htm">May&nbsp;6, 2020</A>,
<A HREF="http://www.sec.gov/Archives/edgar/data/100517/000119312520137726/d920021d8k.htm">May&nbsp;8, 2020</A>,
<A HREF="http://www.sec.gov/Archives/edgar/data/100517/000110465920059790/tm2019297-1_8k.htm">May&nbsp;12, 2020</A> (Item&nbsp;5.02 only),
<A HREF="http://www.sec.gov/Archives/edgar/data/100517/000110465920065436/tm2020679-2_8k.htm">May&nbsp;22, 2020</A>
<A HREF="http://www.sec.gov/Archives/edgar/data/100517/000110465920065438/tm2020679d1_8k.htm">(both filings)</A>,
<A HREF="http://www.sec.gov/Archives/edgar/data/100517/000110465920069018/tm2021575-1_8k.htm">June&nbsp;2, 2020</A> and
<A HREF="http://www.sec.gov/Archives/edgar/data/100517/000110465920073190/tm2022354d3_8k.htm">June&nbsp;15, 2020</A>
(<A HREF="http://www.sec.gov/Archives/edgar/data/100517/000110465920073198/tm2022354d4_8k.htm">both filings</A>); and </FONT><FONT SIZE=2>
<BR><BR></FONT></DD><DT style='font-family:times;margin-bottom:-11pt;'><FONT SIZE=2>&#149;</FONT></DT><DD style="font-family:times;"><FONT SIZE=2>  <A HREF="http://www.sec.gov/Archives/edgar/data/100517/000110465918055192/a18-22014_38k.htm">the description of our common stock in
our Registration Statement on Form&nbsp;8-A filed with the SEC on September&nbsp;5, 2018, including any amendments and reports filed for the purpose of updating such description.</A> </FONT></DD></DL>
</UL>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;We
also incorporate by reference all future documents we file with the SEC pursuant to Sections&nbsp;13(a), 13(c), 14 or 15(d) of the Exchange Act prior to the termination of the
offering of our common stock to which this prospectus supplement and the accompanying prospectus relate, except for any document or portion thereof deemed to be "furnished" and not filed in accordance
with SEC rules. </FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The
information relating to us contained in this prospectus supplement and the accompanying prospectus does not purport to be comprehensive and should be read together with the
information contained in the documents incorporated or deemed to be incorporated by reference into this prospectus supplement and the accompanying prospectus. </FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;If
you request, either orally or in writing, we will provide you with copies of any or all documents that are incorporated or deemed incorporated by reference herein. Such documents will
be provided to you free of charge, but will not contain any exhibits, unless those exhibits are incorporated by reference into the document. Requests can be made by writing to United Airlines
Holdings,&nbsp;Inc., 233 S. Wacker Drive, Chicago, Illinois 60606, Attention: Corporate Secretary, or by telephone request to (872)&nbsp;825-4000. The documents may also be accessed on our website
at </FONT><FONT SIZE=2><I>http://ir.united.com</I></FONT><FONT SIZE=2>. Information contained on our website is not incorporated by reference into this prospectus supplement or the </FONT></P>

<P ALIGN="CENTER" style="font-family:times;"><FONT SIZE=2>S-13</FONT></P>

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<P style="font-family:times;"><FONT SIZE=2><A HREF="#bg15401a_main_toc">Table of Contents</A></FONT></P>

<P style="font-family:times;"><FONT SIZE=2>accompanying
prospectus and you should not consider information contained on our website to be part of this prospectus supplement or the accompanying prospectus. </FONT></P>

<P ALIGN="CENTER" style="font-family:times;"><FONT SIZE=2><A NAME="de15401_legal_matters"> </A>
<A NAME="toc_de15401_4"> </A>
<BR></FONT><FONT SIZE=2><B>  LEGAL MATTERS    <BR>    </B></FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Certain legal matters will be passed upon for us by Sidley Austin&nbsp;LLP, Chicago, Illinois and Houston, Texas. Milbank&nbsp;LLP, New
York, New York, is counsel to the managers in connection with this offering. </FONT></P>

<P ALIGN="CENTER" style="font-family:times;"><FONT SIZE=2><A NAME="de15401_experts"> </A>
<A NAME="toc_de15401_5"> </A>
<BR></FONT><FONT SIZE=2><B>  EXPERTS    <BR>    </B></FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The consolidated financial statements of UAL and United appearing in our
<A HREF="http://www.sec.gov/Archives/edgar/data/100517/000010051720000010/ual201910k.htm">Annual Report (Form&nbsp;10-K)</A> for the year ended December&nbsp;31, 2019,
including the schedule appearing therein, and the effectiveness of UAL's internal control over financial reporting as of December&nbsp;31, 2019, have been audited by Ernst&nbsp;&amp;
Young&nbsp;LLP, independent registered public accounting firm, as set forth in their reports thereon, included therein, and incorporated herein by reference. Such financial statements are, and
audited financial statements to be included in subsequently filed documents will be, incorporated herein in reliance upon the reports of Ernst&nbsp;&amp; Young&nbsp;LLP pertaining to
such financial statements and the effectiveness of UAL's internal control over financial reporting as of the respective dates (to the extent covered by consents filed with the Securities and Exchange
Commission) given on the authority of such firm as experts in accounting and auditing. </FONT></P>

<P ALIGN="CENTER" style="font-family:times;"><FONT SIZE=2>S-14</FONT></P>

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<P style="font-family:times;"><FONT SIZE=2><B>PROSPECTUS  </B></FONT></P>

<P ALIGN="CENTER" style="font-family:times;"><FONT SIZE=5><B>United Continental Holdings,&nbsp;Inc.<BR>  </B></FONT><FONT SIZE=4><B>Common Stock<BR>
Preferred Stock<BR>
Debt Securities<BR>
Guarantees of Debt Securities<BR>
Depositary Shares<BR>
Stock Purchase Contracts<BR>
Stock Purchase Units<BR>
Subscription Rights<BR>
Warrants  </B></FONT></P>

<P ALIGN="CENTER" style="font-family:times;"><FONT SIZE=4><I>

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<BR>  </B></FONT></P>

<P ALIGN="CENTER" style="font-family:times;"><FONT SIZE=5><B>United Airlines,&nbsp;Inc.  </B></FONT></P>

<P ALIGN="CENTER" style="font-family:times;"><FONT SIZE=4><B>Debt Securities<BR>
Guarantees of Debt Securities  </B></FONT></P>

<P ALIGN="CENTER" style="font-family:times;"><FONT SIZE=4><I>

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<BR>  </B></FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The securities covered by this prospectus may be sold by United Continental Holdings,&nbsp;Inc. and its wholly-owned subsidiary United
Airlines,&nbsp;Inc., from time to time, together or separately. In addition, selling security holders who may be named in a prospectus supplement may offer and sell, from time to time, securities in
such amounts as set forth in such prospectus supplement. We may, and any selling security holder may, offer the securities independently or together in any combination for sale directly to purchasers
or through underwriters, dealers or agents to be designated at a future date. Unless otherwise set forth in a prospectus supplement, we will not receive any proceeds from the sale of securities by any
selling security holders. </FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;We
will describe the specific terms of any offering of securities in a prospectus supplement to this prospectus. You should carefully read this prospectus and the applicable prospectus
supplement, together with the documents we incorporate by reference, before you decide to invest in any of these securities. </FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;This
prospectus may not be used to offer or sell any securities unless accompanied by a prospectus supplement. </FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The
Common Stock of United Continental Holdings,&nbsp;Inc. is traded on the New York Stock Exchange under the symbol "UAL." </FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</FONT><FONT
SIZE=3><B><I>Investing in our securities involves risks. See "Risk Factors" beginning on page 2 of this
prospectus.</I></B></FONT></P>

<P ALIGN="CENTER" style="font-family:times;"><FONT SIZE=3><I>

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<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</FONT><FONT SIZE=2><B>Neither the Securities and Exchange Commission nor any state securities commission has approved or disapproved of these
securities or determined if this prospectus is truthful or complete. Any representation to the contrary is a criminal offense.</B></FONT></P>

<P ALIGN="CENTER" style="font-family:times;"><FONT SIZE=2><I>

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&nbsp;&nbsp;&nbsp;
</font></p>
<P ALIGN="CENTER" style="font-family:times;"><FONT SIZE=2>The
date of this prospectus is December&nbsp;1, 2017. </FONT></P>

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<P style="font-family:times;"><FONT SIZE=2><A HREF="#bg15402a_main_toc">Table of Contents</A> </FONT></P>

<P style="font-family:times;"><FONT SIZE=2><A NAME="BG15402A_main_toc"></A> </FONT></P>

<P ALIGN="CENTER" style="font-family:times;"><FONT SIZE=2><A NAME="bg15402_table_of_contents"> </A>
<BR></FONT><FONT SIZE=2><B>  TABLE OF CONTENTS    <BR>    </B></FONT></P>

<P style="font-family:times;"><FONT SIZE=2>
<A NAME="BG15402_TOC"></A> </FONT></P>
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<TH ALIGN="LEFT" style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT><BR></TH>
<TH style="font-family:times;"><FONT SIZE=1>&nbsp;</FONT></TH>
<TH COLSPAN=2 ALIGN="CENTER" style="font-family:times;border-bottom:solid #000000 1.0pt;"><FONT SIZE=1><B>Page </B></FONT></TH>
<TH style="font-family:times;"><FONT SIZE=1>&nbsp;</FONT></TH>
</TR>
<TR VALIGN="TOP">
<TD style="font-family:times;"><A HREF="#bg15402_about_this_prospectus"><p style="font-family:times;margin-left:10pt;text-indent:-10pt;"><FONT SIZE=2> </FONT><FONT SIZE=2>ABOUT THIS PROSPECTUS</FONT></A></TD>
<TD style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD VALIGN="BOTTOM" style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD ALIGN="RIGHT" VALIGN="BOTTOM" style="font-family:times;"><A HREF="#bg15402_about_this_prospectus"><FONT SIZE=2>1</FONT></A></TD>
<TD VALIGN="BOTTOM" style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
</TR>
<TR VALIGN="TOP">
<TD style="font-family:times;"><A HREF="#da15402_risk_factors"><p style="font-family:times;margin-left:10pt;text-indent:-10pt;"><FONT SIZE=2> </FONT><FONT SIZE=2>RISK FACTORS</FONT></A></TD>
<TD style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD VALIGN="BOTTOM" style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD ALIGN="RIGHT" VALIGN="BOTTOM" style="font-family:times;"><A HREF="#da15402_risk_factors"><FONT SIZE=2>2</FONT></A></TD>
<TD VALIGN="BOTTOM" style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
</TR>
<TR VALIGN="TOP">
<TD style="font-family:times;"><A HREF="#da15402_cautionary_statement_c__da102417"><p style="font-family:times;margin-left:10pt;text-indent:-10pt;"><FONT SIZE=2> </FONT><FONT SIZE=2>CAUTIONARY STATEMENT CONCERNING FORWARD-LOOKING STATEMENTS</FONT></A></TD>
<TD style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD VALIGN="BOTTOM" style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD ALIGN="RIGHT" VALIGN="BOTTOM" style="font-family:times;"><A HREF="#da15402_cautionary_statement_c__da102417"><FONT SIZE=2>2</FONT></A></TD>
<TD VALIGN="BOTTOM" style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
</TR>
<TR VALIGN="TOP">
<TD style="font-family:times;"><A HREF="#da15402_the_company"><p style="font-family:times;margin-left:10pt;text-indent:-10pt;"><FONT SIZE=2> </FONT><FONT SIZE=2>THE COMPANY</FONT></A></TD>
<TD style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD VALIGN="BOTTOM" style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD ALIGN="RIGHT" VALIGN="BOTTOM" style="font-family:times;"><A HREF="#da15402_the_company"><FONT SIZE=2>3</FONT></A></TD>
<TD VALIGN="BOTTOM" style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
</TR>
<TR VALIGN="TOP">
<TD style="font-family:times;"><A HREF="#da15402_selling_security_holders"><p style="font-family:times;margin-left:10pt;text-indent:-10pt;"><FONT SIZE=2> </FONT><FONT SIZE=2>SELLING SECURITY HOLDERS</FONT></A></TD>
<TD style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD VALIGN="BOTTOM" style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD ALIGN="RIGHT" VALIGN="BOTTOM" style="font-family:times;"><A HREF="#da15402_selling_security_holders"><FONT SIZE=2>3</FONT></A></TD>
<TD VALIGN="BOTTOM" style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
</TR>
<TR VALIGN="TOP">
<TD style="font-family:times;"><A HREF="#da15402_use_of_proceeds"><p style="font-family:times;margin-left:10pt;text-indent:-10pt;"><FONT SIZE=2> </FONT><FONT SIZE=2>USE OF PROCEEDS</FONT></A></TD>
<TD style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD VALIGN="BOTTOM" style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD ALIGN="RIGHT" VALIGN="BOTTOM" style="font-family:times;"><A HREF="#da15402_use_of_proceeds"><FONT SIZE=2>4</FONT></A></TD>
<TD VALIGN="BOTTOM" style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
</TR>
<TR VALIGN="TOP">
<TD style="font-family:times;"><A HREF="#da15402_ratios_of_earnings_to_fixed_charges"><p style="font-family:times;margin-left:10pt;text-indent:-10pt;"><FONT SIZE=2> </FONT><FONT SIZE=2>RATIOS OF EARNINGS TO FIXED CHARGES</FONT></A></TD>
<TD style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD VALIGN="BOTTOM" style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD ALIGN="RIGHT" VALIGN="BOTTOM" style="font-family:times;"><A HREF="#da15402_ratios_of_earnings_to_fixed_charges"><FONT SIZE=2>4</FONT></A></TD>
<TD VALIGN="BOTTOM" style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
</TR>
<TR VALIGN="TOP">
<TD style="font-family:times;"><A HREF="#dc15402_description_of_ual_capital_stock"><p style="font-family:times;margin-left:10pt;text-indent:-10pt;"><FONT SIZE=2> </FONT><FONT SIZE=2>DESCRIPTION OF UAL CAPITAL STOCK</FONT></A></TD>
<TD style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD VALIGN="BOTTOM" style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD ALIGN="RIGHT" VALIGN="BOTTOM" style="font-family:times;"><A HREF="#dc15402_description_of_ual_capital_stock"><FONT SIZE=2>5</FONT></A></TD>
<TD VALIGN="BOTTOM" style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
</TR>
<TR VALIGN="TOP">
<TD style="font-family:times;"><A HREF="#de15402_description_of_debt_securities_and_guarantees"><p style="font-family:times;margin-left:10pt;text-indent:-10pt;"><FONT SIZE=2> </FONT><FONT SIZE=2>DESCRIPTION OF DEBT SECURITIES AND GUARANTEES</FONT></A></TD>
<TD style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD VALIGN="BOTTOM" style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD ALIGN="RIGHT" VALIGN="BOTTOM" style="font-family:times;"><A HREF="#de15402_description_of_debt_securities_and_guarantees"><FONT SIZE=2>11</FONT></A></TD>
<TD VALIGN="BOTTOM" style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
</TR>
<TR VALIGN="TOP">
<TD style="font-family:times;"><A HREF="#dg15402_description_of_depositary_shares"><p style="font-family:times;margin-left:10pt;text-indent:-10pt;"><FONT SIZE=2> </FONT><FONT SIZE=2>DESCRIPTION OF DEPOSITARY SHARES</FONT></A></TD>
<TD style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD VALIGN="BOTTOM" style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD ALIGN="RIGHT" VALIGN="BOTTOM" style="font-family:times;"><A HREF="#dg15402_description_of_depositary_shares"><FONT SIZE=2>22</FONT></A></TD>
<TD VALIGN="BOTTOM" style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
</TR>
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<TD style="font-family:times;"><A HREF="#dg15402_description_of_stock_purchase___des02662"><p style="font-family:times;margin-left:10pt;text-indent:-10pt;"><FONT SIZE=2> </FONT><FONT SIZE=2>DESCRIPTION OF STOCK PURCHASE CONTRACTS AND STOCK PURCHASE UNITS</FONT></A></TD>
<TD style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD VALIGN="BOTTOM" style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD ALIGN="RIGHT" VALIGN="BOTTOM" style="font-family:times;"><A HREF="#dg15402_description_of_stock_purchase___des02662"><FONT SIZE=2>25</FONT></A></TD>
<TD VALIGN="BOTTOM" style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
</TR>
<TR VALIGN="TOP">
<TD style="font-family:times;"><A HREF="#dg15402_description_of_subscription_rights"><p style="font-family:times;margin-left:10pt;text-indent:-10pt;"><FONT SIZE=2> </FONT><FONT SIZE=2>DESCRIPTION OF SUBSCRIPTION RIGHTS</FONT></A></TD>
<TD style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD VALIGN="BOTTOM" style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD ALIGN="RIGHT" VALIGN="BOTTOM" style="font-family:times;"><A HREF="#dg15402_description_of_subscription_rights"><FONT SIZE=2>26</FONT></A></TD>
<TD VALIGN="BOTTOM" style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
</TR>
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<TD style="font-family:times;"><A HREF="#dg15402_description_of_warrants"><p style="font-family:times;margin-left:10pt;text-indent:-10pt;"><FONT SIZE=2> </FONT><FONT SIZE=2>DESCRIPTION OF WARRANTS</FONT></A></TD>
<TD style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD VALIGN="BOTTOM" style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD ALIGN="RIGHT" VALIGN="BOTTOM" style="font-family:times;"><A HREF="#dg15402_description_of_warrants"><FONT SIZE=2>27</FONT></A></TD>
<TD VALIGN="BOTTOM" style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
</TR>
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<TD style="font-family:times;"><A HREF="#dg15402_plan_of_distribution"><p style="font-family:times;margin-left:10pt;text-indent:-10pt;"><FONT SIZE=2> </FONT><FONT SIZE=2>PLAN OF DISTRIBUTION</FONT></A></TD>
<TD style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD VALIGN="BOTTOM" style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD ALIGN="RIGHT" VALIGN="BOTTOM" style="font-family:times;"><A HREF="#dg15402_plan_of_distribution"><FONT SIZE=2>28</FONT></A></TD>
<TD VALIGN="BOTTOM" style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
</TR>
<TR VALIGN="TOP">
<TD style="font-family:times;"><A HREF="#di15402_where_you_can_find_more_information"><p style="font-family:times;margin-left:10pt;text-indent:-10pt;"><FONT SIZE=2> </FONT><FONT SIZE=2>WHERE YOU CAN FIND MORE INFORMATION</FONT></A></TD>
<TD style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD VALIGN="BOTTOM" style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD ALIGN="RIGHT" VALIGN="BOTTOM" style="font-family:times;"><A HREF="#di15402_where_you_can_find_more_information"><FONT SIZE=2>31</FONT></A></TD>
<TD VALIGN="BOTTOM" style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
</TR>
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<TD style="font-family:times;"><A HREF="#di15402_incorporation_of_certain_documents_by_reference"><p style="font-family:times;margin-left:10pt;text-indent:-10pt;"><FONT SIZE=2> </FONT><FONT SIZE=2>INCORPORATION OF CERTAIN DOCUMENTS BY REFERENCE</FONT></A></TD>
<TD style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD VALIGN="BOTTOM" style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD ALIGN="RIGHT" VALIGN="BOTTOM" style="font-family:times;"><A HREF="#di15402_incorporation_of_certain_documents_by_reference"><FONT SIZE=2>31</FONT></A></TD>
<TD VALIGN="BOTTOM" style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
</TR>
<TR VALIGN="TOP">
<TD style="font-family:times;"><A HREF="#di15402_legal_matters"><p style="font-family:times;margin-left:10pt;text-indent:-10pt;"><FONT SIZE=2> </FONT><FONT SIZE=2>LEGAL MATTERS</FONT></A></TD>
<TD style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD VALIGN="BOTTOM" style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD ALIGN="RIGHT" VALIGN="BOTTOM" style="font-family:times;"><A HREF="#di15402_legal_matters"><FONT SIZE=2>32</FONT></A></TD>
<TD VALIGN="BOTTOM" style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
</TR>
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<TD style="font-family:times;"><A HREF="#di15402_experts"><p style="font-family:times;margin-left:10pt;text-indent:-10pt;"><FONT SIZE=2> </FONT><FONT SIZE=2>EXPERTS</FONT></A></TD>
<TD style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD VALIGN="BOTTOM" style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD ALIGN="RIGHT" VALIGN="BOTTOM" style="font-family:times;"><A HREF="#di15402_experts"><FONT SIZE=2>32</FONT></A></TD>
<TD VALIGN="BOTTOM" style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
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<BR></FONT><FONT SIZE=2><B>  ABOUT THIS PROSPECTUS    <BR>    </B></FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;This prospectus is part of a registration statement that we filed with the Securities and Exchange Commission (the "SEC") using the "shelf"
registration process. Under the shelf registration process, we, or certain of our security holders, may sell the securities described in this prospectus in one or more offerings from time to time.
This prospectus provides you with a general description of the securities that we or a selling security holder may offer. Each time we, or, under certain circumstances, our security holders, sell
securities, we will provide a prospectus supplement that will contain specific information about the terms of that offering. </FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;This
prospectus contains summaries of certain provisions contained in some of the documents described herein. Please refer to the actual documents for complete information. All of the
summaries are qualified in their entirety by the actual documents. Copies of the documents referred to herein have been filed, or will be filed or incorporated by reference as exhibits to the
registration statement of which this prospectus is a part, and you may obtain copies of those documents as described below under "Where You Can Find More Information." </FONT></P>


<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;In
this prospectus, unless the context otherwise requires, the terms "we," "our," "us" and the "Company" refer to United Continental Holdings,&nbsp;Inc. and its subsidiaries, including
United Airlines,&nbsp;Inc. </FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</FONT><FONT
SIZE=2><B>You should rely only on the information contained in this prospectus or in a prospectus supplement accompanying this prospectus or on the information incorporated
by reference therein. We have not authorized anyone to provide you with different information. The distribution of this prospectus and sale of these securities in certain jurisdictions may be
restricted by law. Persons in possession of this prospectus are required to inform themselves about and observe any such restrictions. We are not making an offer to sell these securities in any
jurisdiction where the offer or sale is not permitted. You should assume that the information appearing in this prospectus is accurate as of the date on the front cover of this prospectus only. Our
business, financial condition, results of operations and prospects may have changed since that date.</B></FONT></P>

<P ALIGN="CENTER" style="font-family:times;"><FONT SIZE=2>1</FONT></P>

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<P style="font-family:times;"><FONT SIZE=2><A HREF="#bg15402a_main_toc">Table of Contents</A> </FONT></P>

<P ALIGN="CENTER" style="font-family:times;"><FONT SIZE=2><A NAME="da15402_risk_factors"> </A>
<A NAME="toc_da15402_1"> </A>
<BR></FONT><FONT SIZE=2><B>  RISK FACTORS    <BR>    </B></FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;An investment in our securities involves risk. Before you invest in securities issued by us, you should carefully consider the risks involved.
Accordingly, you should carefully consider:</FONT></P>

<UL>
<DL compact>
<DT style='font-family:times;margin-bottom:-11pt;'><FONT SIZE=2>&#149;</FONT></DT><DD style="font-family:times;"><FONT SIZE=2> the information contained in or incorporated by reference into this prospectus; </FONT><FONT SIZE=2>
<BR><BR></FONT></DD><DT style='font-family:times;margin-bottom:-11pt;'><FONT SIZE=2>&#149;</FONT></DT><DD style="font-family:times;"><FONT SIZE=2> the information contained in or incorporated by reference into any prospectus supplement relating to specific offerings of securities; </FONT> <FONT SIZE=2>
<BR><BR></FONT></DD><DT style='font-family:times;margin-bottom:-11pt;'><FONT SIZE=2>&#149;</FONT></DT><DD style="font-family:times;"><FONT SIZE=2> the risks described in the Annual Report on Form&nbsp;10-K of United Continental Holdings,&nbsp;Inc. and United Airlines,&nbsp;Inc. for
our most recent fiscal year and in any Quarterly Report on Form&nbsp;10-Q, which we have filed since our most recent Annual Report on Form&nbsp;10-K, each of which is incorporated by reference
into this prospectus; and </FONT><FONT SIZE=2>
<BR><BR></FONT></DD><DT style='font-family:times;margin-bottom:-11pt;'><FONT SIZE=2>&#149;</FONT></DT><DD style="font-family:times;"><FONT SIZE=2> other risks and other information that may be contained in, or incorporated by reference from, other filings we make with the SEC, including in
any prospectus supplement relating to specific offerings of securities. </FONT></DD></DL>
</UL>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The
discussion of risks related to our business contained in or incorporated by reference into this prospectus or into any prospectus supplement comprises material risks of which we are
aware. If any of the events or developments described actually occurs, our business, financial condition or results of operations would likely suffer. </FONT></P>

<P ALIGN="CENTER" style="font-family:times;"><FONT SIZE=2><A NAME="da15402_cautionary_statement_c__da102417"> </A>
<A NAME="toc_da15402_2"> </A>
<BR></FONT><FONT SIZE=2><B>  CAUTIONARY STATEMENT CONCERNING FORWARD-LOOKING STATEMENTS    <BR>    </B></FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Certain statements contained in or incorporated by reference in this prospectus or any prospectus supplement delivered with this prospectus are
forward-looking and thus reflect our current expectations and beliefs with respect to certain current and future events and anticipated financial and operating performance. Such forward-looking
statements are and will be subject to many risks and uncertainties relating to our operations and business environment that may cause actual results to differ materially from any future results
expressed or implied in such forward-looking statements. Words such as "expects," "will," "plans," "anticipates," "indicates," "believes," "forecast," "guidance," "outlook," "goals" and similar
expressions are intended to identify forward-looking statements. </FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Additionally,
forward-looking statements include statements that do not relate solely to historical facts, such as statements which identify uncertainties or trends, discuss the possible
future effects of current known trends or uncertainties, or which indicate that the future effects of known trends or uncertainties cannot be predicted, guaranteed or assured. All forward-looking
statements contained in or incorporated by reference in this prospectus or any prospectus supplement delivered with this
prospectus are based upon information available to us on the date such statements are made. We undertake no obligation to publicly update or revise any forward-looking statement, whether as a result
of new information, future events, changed circumstances or otherwise, except as required by applicable law. </FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Our
actual results could differ materially from these forward-looking statements due to numerous factors including, without limitation, the following: our ability to comply with the
terms of our various financing arrangements; the costs and availability of financing; our ability to maintain adequate liquidity; our ability to execute our operational plans and revenue-generating
initiatives, including optimizing our revenue; our ability to control our costs, including realizing benefits from our resource optimization efforts, cost reduction initiatives and fleet replacement
programs; costs associated with any modification or termination of our aircraft orders; our ability to utilize our net operating losses; our ability to attract and retain customers; potential
reputational or other impact from adverse events in our operations; demand for transportation in the markets in which we operate; an outbreak of a disease that affects travel demand or travel
behavior; demand for travel and the impact that global </FONT></P>

<P ALIGN="CENTER" style="font-family:times;"><FONT SIZE=2>2</FONT></P>

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<P style="font-family:times;"><FONT SIZE=2><A HREF="#bg15402a_main_toc">Table of Contents</A></FONT></P>

<P style="font-family:times;"><FONT SIZE=2>economic
and political conditions have on customer travel patterns; excessive taxation and the inability to offset future taxable income; general economic conditions (including interest rates, foreign
currency exchange rates, investment or credit market conditions, crude oil prices, costs of aircraft fuel and energy refining capacity in relevant markets); economic and political instability and
other risks of doing business globally; our ability to cost-effectively hedge against increases in the price of aircraft fuel if we decide to do so; any potential realized or unrealized gains or
losses related to fuel or currency hedging programs; the effects of any hostilities, act of war or terrorist attack; the ability of other air carriers with whom we have alliances or partnerships to
provide the services contemplated by the respective arrangements with such carriers; the effects of any technology failures or cybersecurity breaches; disruptions to our regional network; the costs
and availability of aviation and other insurance; industry consolidation or changes in airline alliances; the success of our investments in airlines in other parts of the world; competitive pressures
on pricing and on demand; our capacity decisions and the capacity decisions of our competitors; U.S. or foreign governmental legislation, regulation and other actions (including Open Skies agreements
and environmental regulations); the impact of regulatory, investigative and legal proceedings and legal compliance risks; the impact of any management changes; labor costs; our ability to maintain
satisfactory labor relations and the results of any collective bargaining agreement process with our union groups; any disruptions to operations due to any potential actions by our labor groups;
weather conditions; and other risks and uncertainties, including those set forth in the sections entitled "Risk Factors" in this prospectus, in our most recent Annual Report on Form&nbsp;10-K and
any subsequent Quarterly Reports on Form&nbsp;10-Q, which are incorporated by reference in this prospectus and may be obtained as described below under "Incorporation of Certain Documents by
Reference," and, if applicable, in the applicable prospectus supplement and any related free writing prospectus, as well as the risks and uncertainties discussed in our consolidated financial
statements, related notes and the other information included in this prospectus, the applicable prospectus supplement, any related free writing prospectus and the documents incorporated and deemed to
be incorporated by reference herein. Consequently, the forward-looking statements should not be regarded as representations or warranties by us that such matters will be realized. </FONT></P>

<P ALIGN="CENTER" style="font-family:times;"><FONT SIZE=2><A NAME="da15402_the_company"> </A>
<A NAME="toc_da15402_3"> </A>
<BR></FONT><FONT SIZE=2><B>  THE COMPANY    <BR>    </B></FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;United Continental Holdings,&nbsp;Inc. ("UAL") is a holding company, and its principal, wholly-owned subsidiary is United
Airlines,&nbsp;Inc. ("United"), which is a commercial airline. </FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Each
of UAL and United is a Delaware corporation. The principal executive offices of UAL and United are located at 233 S. Wacker Drive, Chicago, Illinois 60606, telephone
(872)&nbsp;825-4000. </FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;UAL's
website is www.unitedcontinentalholdings.com, and United's website is www.united.com. The information contained on or connected to these websites is not incorporated
by reference into this prospectus and should not be considered part of this prospectus. </FONT></P>

<P ALIGN="CENTER" style="font-family:times;"><FONT SIZE=2><A NAME="da15402_selling_security_holders"> </A>
<A NAME="toc_da15402_4"> </A>
<BR></FONT><FONT SIZE=2><B>  SELLING SECURITY HOLDERS    <BR>    </B></FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;We may register securities covered by this prospectus for re-offers and resales by any selling security holders who may be named in a prospectus
supplement. Because each of UAL and United is a well-known seasoned issuer, as defined in Rule&nbsp;405 under the Securities Act of 1933, as amended (the "Securities Act"), we may add secondary
sales of securities by any selling security holders by filing a prospectus supplement with the SEC. We may register these securities to permit selling security holders to resell their securities when
they deem appropriate. A selling security holder may resell all, a portion or none of their securities at any time and from time to time. We may register those securities for sale through an
underwriter or other plan of distribution as set forth in a prospectus supplement. See "Plan of Distribution." Selling security holders may also sell, transfer or otherwise dispose of some or all of
their securities in transactions exempt from the registration requirements of the Securities Act. We may pay all expenses incurred with respect to the registration of the securities owned by the
selling security holders, other than underwriting fees, discounts or commissions, which will be borne by the selling security holders. We will provide you with a prospectus supplement naming the
selling security holders, the amount of securities to be registered and sold and any other terms of the securities being sold by a selling security holder. </FONT></P>

<P ALIGN="CENTER" style="font-family:times;"><FONT SIZE=2>3</FONT></P>

<HR NOSHADE>
<P style='font-family:times;page-break-before:always'></p>
<!-- ZEQ.=2,SEQ=24,EFW="2241873",CP="UNITED AIRLINES HOLDINGS, INC.",DN="1",CHK=303126,FOLIO='3',FILE='DISK108:[20ZCT2.20ZCT15402]DA15402A.;4',USER='CHE109876',CD='15-JUN-2020;00:03' -->
<A NAME="page_da15402_1_4"> </A>

<P style="font-family:times;"><FONT SIZE=2><A HREF="#bg15402a_main_toc">Table of Contents</A></FONT></P>

<P ALIGN="CENTER" style="font-family:times;"><FONT SIZE=2><A NAME="da15402_use_of_proceeds"> </A>
<A NAME="toc_da15402_5"> </A>
<BR></FONT><FONT SIZE=2><B>  USE OF PROCEEDS    <BR>    </B></FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Unless otherwise indicated in an accompanying prospectus supplement, we intend to use the net proceeds from the sale of our securities for
general corporate purposes, which may include possible future repayments of indebtedness, the funding of a portion of our pension liabilities and our working capital requirements. Unless otherwise set
forth in a prospectus supplement, we will not receive any proceeds from any sales of our securities by any selling security holder who may be named in a prospectus supplement. </FONT></P>

<P ALIGN="CENTER" style="font-family:times;"><FONT SIZE=2><A NAME="da15402_ratios_of_earnings_to_fixed_charges"> </A>
<A NAME="toc_da15402_6"> </A>
<BR></FONT><FONT SIZE=2><B>  RATIOS OF EARNINGS TO FIXED CHARGES    <BR>    </B></FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The following table sets forth UAL's consolidated ratio of earnings to fixed charges for the periods indicated: </FONT></P>
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<TD WIDTH="7pt" ALIGN="RIGHT" style="font-family:times;"></TD>
<TD WIDTH="93pt" style="font-family:times;"></TD>
<TD WIDTH="12pt" style="font-family:times;"></TD>
<TD WIDTH="7pt" ALIGN="RIGHT" style="font-family:times;"></TD>
<TD WIDTH="31pt" style="font-family:times;"></TD>
<TD WIDTH="12pt" style="font-family:times;"></TD>
<TD WIDTH="7pt" ALIGN="RIGHT" style="font-family:times;"></TD>
<TD WIDTH="31pt" style="font-family:times;"></TD>
<TD WIDTH="12pt" style="font-family:times;"></TD>
<TD WIDTH="7pt" ALIGN="RIGHT" style="font-family:times;"></TD>
<TD WIDTH="31pt" style="font-family:times;"></TD>
<TD WIDTH="12pt" style="font-family:times;"></TD>
<TD WIDTH="7pt" ALIGN="RIGHT" style="font-family:times;"></TD>
<TD WIDTH="31pt" style="font-family:times;"></TD>
<TD WIDTH="12pt" style="font-family:times;"></TD>
<TD WIDTH="7pt" ALIGN="RIGHT" style="font-family:times;"></TD>
<TD WIDTH="30pt" style="font-family:times;"></TD>
<TD WIDTH="12pt" style="font-family:times;"></TD>
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<TR VALIGN="BOTTOM">
<TH ALIGN="LEFT" style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT><BR></TH>
<TH style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TH>
<TH COLSPAN=2 ALIGN="LEFT" style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT><BR></TH>
<TH ROWSPAN=2 style="font-family:times;"><FONT SIZE=1>&nbsp;</FONT></TH>
<TH COLSPAN=14 ROWSPAN=2 ALIGN="CENTER" style="font-family:times;border-bottom:solid #000000 1.0pt;"><FONT SIZE=1><B>Year Ended December&nbsp;31, </B></FONT></TH>
<TH style="font-family:times;"><FONT SIZE=1>&nbsp;</FONT></TH>
</TR>
<TR VALIGN="BOTTOM">
<TH ALIGN="LEFT" style="font-family:times;"><FONT SIZE=1>&nbsp;</FONT><BR></TH>
<TH ROWSPAN=2 style="font-family:times;"><FONT SIZE=1>&nbsp;</FONT></TH>
<TH COLSPAN=2 ROWSPAN=2 ALIGN="CENTER" style="font-family:times;border-bottom:solid #000000 1.0pt;"><FONT SIZE=1><B>Nine Months Ended<BR>
September&nbsp;30, 2017 </B></FONT></TH>
<TH style="font-family:times;"><FONT SIZE=1>&nbsp;</FONT></TH>
</TR>
<TR VALIGN="BOTTOM">
<TH ALIGN="LEFT" style="font-family:times;"><FONT SIZE=1>&nbsp;</FONT><BR></TH>
<TH style="font-family:times;"><FONT SIZE=1>&nbsp;</FONT></TH>
<TH COLSPAN=2 ALIGN="CENTER" style="font-family:times;border-bottom:solid #000000 1.0pt;"><FONT SIZE=1><B>2016 </B></FONT></TH>
<TH style="font-family:times;"><FONT SIZE=1>&nbsp;</FONT></TH>
<TH COLSPAN=2 ALIGN="CENTER" style="font-family:times;border-bottom:solid #000000 1.0pt;"><FONT SIZE=1><B>2015 </B></FONT></TH>
<TH style="font-family:times;"><FONT SIZE=1>&nbsp;</FONT></TH>
<TH COLSPAN=2 ALIGN="CENTER" style="font-family:times;border-bottom:solid #000000 1.0pt;"><FONT SIZE=1><B>2014 </B></FONT></TH>
<TH style="font-family:times;"><FONT SIZE=1>&nbsp;</FONT></TH>
<TH COLSPAN=2 ALIGN="CENTER" style="font-family:times;border-bottom:solid #000000 1.0pt;"><FONT SIZE=1><B>2013 </B></FONT></TH>
<TH style="font-family:times;"><FONT SIZE=1>&nbsp;</FONT></TH>
<TH COLSPAN=2 ALIGN="CENTER" style="font-family:times;border-bottom:solid #000000 1.0pt;"><FONT SIZE=1><B>2012 </B></FONT></TH>
<TH style="font-family:times;"><FONT SIZE=1>&nbsp;</FONT></TH>
</TR>
<TR BGCOLOR="#CCEEFF" VALIGN="TOP">
<TD VALIGN="BOTTOM" style="font-family:times;"><p style="font-family:times;margin-left:10pt;text-indent:-10pt;"><FONT SIZE=2> </FONT><FONT SIZE=2>Ratio of earnings to fixed charges(1)</FONT></TD>
<TD VALIGN="BOTTOM" style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD VALIGN="BOTTOM" style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD ALIGN="RIGHT" VALIGN="BOTTOM" style="font-family:times;"><FONT SIZE=2>3.27x</FONT></TD>
<TD VALIGN="BOTTOM" style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD VALIGN="BOTTOM" style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD ALIGN="RIGHT" VALIGN="BOTTOM" style="font-family:times;"><FONT SIZE=2>3.74x</FONT></TD>
<TD VALIGN="BOTTOM" style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD VALIGN="BOTTOM" style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD ALIGN="RIGHT" VALIGN="BOTTOM" style="font-family:times;"><FONT SIZE=2>3.93x</FONT></TD>
<TD VALIGN="BOTTOM" style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD VALIGN="BOTTOM" style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD ALIGN="RIGHT" VALIGN="BOTTOM" style="font-family:times;"><FONT SIZE=2>1.66x</FONT></TD>
<TD VALIGN="BOTTOM" style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD VALIGN="BOTTOM" style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD ALIGN="RIGHT" VALIGN="BOTTOM" style="font-family:times;"><FONT SIZE=2>1.31x</FONT></TD>
<TD VALIGN="BOTTOM" style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD VALIGN="BOTTOM" style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD ALIGN="RIGHT" VALIGN="BOTTOM" style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</FONT></TD>
<TD VALIGN="BOTTOM" style="font-family:times;"><FONT SIZE=2>(a)</FONT></TD>
</TR>
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<DIV style="padding:0pt;position:relative;text-align:left;margin-left:10%;">
 <DL compact>
<DT style='font-family:times;margin-bottom:-11pt;'><FONT SIZE=2>(a)</FONT></DT><DD style="font-family:times;"><FONT SIZE=2>Earnings
were inadequate to cover fixed charges by $756&nbsp;million for the year ended December&nbsp;31, 2012. </FONT></DD></DL>


<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The
following table sets forth United's consolidated ratio of earnings to fixed charges for the periods indicated: </FONT></P>
 <div style="display:none;*display:block;margin-top:-1pt;"></div>

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<TD WIDTH="12pt" style="font-family:times;"></TD>
<TD WIDTH="7pt" ALIGN="RIGHT" style="font-family:times;"></TD>
<TD WIDTH="93pt" style="font-family:times;"></TD>
<TD WIDTH="12pt" style="font-family:times;"></TD>
<TD WIDTH="7pt" ALIGN="RIGHT" style="font-family:times;"></TD>
<TD WIDTH="31pt" style="font-family:times;"></TD>
<TD WIDTH="12pt" style="font-family:times;"></TD>
<TD WIDTH="7pt" ALIGN="RIGHT" style="font-family:times;"></TD>
<TD WIDTH="31pt" style="font-family:times;"></TD>
<TD WIDTH="12pt" style="font-family:times;"></TD>
<TD WIDTH="7pt" ALIGN="RIGHT" style="font-family:times;"></TD>
<TD WIDTH="31pt" style="font-family:times;"></TD>
<TD WIDTH="12pt" style="font-family:times;"></TD>
<TD WIDTH="7pt" ALIGN="RIGHT" style="font-family:times;"></TD>
<TD WIDTH="31pt" style="font-family:times;"></TD>
<TD WIDTH="12pt" style="font-family:times;"></TD>
<TD WIDTH="7pt" ALIGN="RIGHT" style="font-family:times;"></TD>
<TD WIDTH="30pt" style="font-family:times;"></TD>
<TD WIDTH="12pt" style="font-family:times;"></TD>
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<TR VALIGN="BOTTOM">
<TH ALIGN="LEFT" style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT><BR></TH>
<TH style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TH>
<TH COLSPAN=2 ALIGN="LEFT" style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT><BR></TH>
<TH ROWSPAN=2 style="font-family:times;"><FONT SIZE=1>&nbsp;</FONT></TH>
<TH COLSPAN=14 ROWSPAN=2 ALIGN="CENTER" style="font-family:times;border-bottom:solid #000000 1.0pt;"><FONT SIZE=1><B>Year Ended December&nbsp;31, </B></FONT></TH>
<TH style="font-family:times;"><FONT SIZE=1>&nbsp;</FONT></TH>
</TR>
<TR VALIGN="BOTTOM">
<TH ALIGN="LEFT" style="font-family:times;"><FONT SIZE=1>&nbsp;</FONT><BR></TH>
<TH ROWSPAN=2 style="font-family:times;"><FONT SIZE=1>&nbsp;</FONT></TH>
<TH COLSPAN=2 ROWSPAN=2 ALIGN="CENTER" style="font-family:times;border-bottom:solid #000000 1.0pt;"><FONT SIZE=1><B>Nine Months Ended<BR>
September&nbsp;30, 2017 </B></FONT></TH>
<TH style="font-family:times;"><FONT SIZE=1>&nbsp;</FONT></TH>
</TR>
<TR VALIGN="BOTTOM">
<TH ALIGN="LEFT" style="font-family:times;"><FONT SIZE=1>&nbsp;</FONT><BR></TH>
<TH style="font-family:times;"><FONT SIZE=1>&nbsp;</FONT></TH>
<TH COLSPAN=2 ALIGN="CENTER" style="font-family:times;border-bottom:solid #000000 1.0pt;"><FONT SIZE=1><B>2016 </B></FONT></TH>
<TH style="font-family:times;"><FONT SIZE=1>&nbsp;</FONT></TH>
<TH COLSPAN=2 ALIGN="CENTER" style="font-family:times;border-bottom:solid #000000 1.0pt;"><FONT SIZE=1><B>2015 </B></FONT></TH>
<TH style="font-family:times;"><FONT SIZE=1>&nbsp;</FONT></TH>
<TH COLSPAN=2 ALIGN="CENTER" style="font-family:times;border-bottom:solid #000000 1.0pt;"><FONT SIZE=1><B>2014 </B></FONT></TH>
<TH style="font-family:times;"><FONT SIZE=1>&nbsp;</FONT></TH>
<TH COLSPAN=2 ALIGN="CENTER" style="font-family:times;border-bottom:solid #000000 1.0pt;"><FONT SIZE=1><B>2013 </B></FONT></TH>
<TH style="font-family:times;"><FONT SIZE=1>&nbsp;</FONT></TH>
<TH COLSPAN=2 ALIGN="CENTER" style="font-family:times;border-bottom:solid #000000 1.0pt;"><FONT SIZE=1><B>2012 </B></FONT></TH>
<TH style="font-family:times;"><FONT SIZE=1>&nbsp;</FONT></TH>
</TR>
<TR BGCOLOR="#CCEEFF" VALIGN="TOP">
<TD VALIGN="BOTTOM" style="font-family:times;"><p style="font-family:times;margin-left:10pt;text-indent:-10pt;"><FONT SIZE=2> </FONT><FONT SIZE=2>Ratio of earnings to fixed charges(1)</FONT></TD>
<TD VALIGN="BOTTOM" style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD VALIGN="BOTTOM" style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD ALIGN="RIGHT" VALIGN="BOTTOM" style="font-family:times;"><FONT SIZE=2>3.27x</FONT></TD>
<TD VALIGN="BOTTOM" style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD VALIGN="BOTTOM" style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD ALIGN="RIGHT" VALIGN="BOTTOM" style="font-family:times;"><FONT SIZE=2>3.75x</FONT></TD>
<TD VALIGN="BOTTOM" style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD VALIGN="BOTTOM" style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD ALIGN="RIGHT" VALIGN="BOTTOM" style="font-family:times;"><FONT SIZE=2>3.93x</FONT></TD>
<TD VALIGN="BOTTOM" style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD VALIGN="BOTTOM" style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD ALIGN="RIGHT" VALIGN="BOTTOM" style="font-family:times;"><FONT SIZE=2>1.65x</FONT></TD>
<TD VALIGN="BOTTOM" style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD VALIGN="BOTTOM" style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD ALIGN="RIGHT" VALIGN="BOTTOM" style="font-family:times;"><FONT SIZE=2>1.37x</FONT></TD>
<TD VALIGN="BOTTOM" style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD VALIGN="BOTTOM" style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD ALIGN="RIGHT" VALIGN="BOTTOM" style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</FONT></TD>
<TD VALIGN="BOTTOM" style="font-family:times;"><FONT SIZE=2>(b)</FONT></TD>
</TR>
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 </DIV>
<DIV style="padding:0pt;position:relative;text-align:left;margin-left:10%;">
 <DL compact>
<DT style='font-family:times;margin-bottom:-11pt;'><FONT SIZE=2>(b)</FONT></DT><DD style="font-family:times;"><FONT SIZE=2>Earnings
were inadequate to cover fixed charges by $689&nbsp;million for the year ended December&nbsp;31, 2012.  </FONT></DD></DL>
 </DIV>
<DIV style="padding:0pt;position:relative;text-align:left;margin-left:10%;">

<DL compact>
<DT style='font-family:times;margin-bottom:-11pt;'><FONT SIZE=2>(1)</FONT></DT><DD style="font-family:times;"><FONT SIZE=2>For
purposes of calculating this ratio, earnings consist of income (loss) before income taxes, plus (a)&nbsp;fixed charges, distributed earnings of affiliates in
which UAL/United has a minority equity interest and amortization of previously capitalized interest, less (b)&nbsp;capitalized interest and the noncontrolling interest in earnings of affiliates in
which UAL/United has a minority equity interest. Fixed charges consist of interest expense and the portion of rental expense representative of interest expense, and the amount amortized for debt
discount, premium and debt issuance expense.  </FONT></DD></DL>
 </DIV>
 <P ALIGN="CENTER" style="font-family:times;"><FONT SIZE=2>4</FONT></P>

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</FONT></P>

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<P style="font-family:times;"><FONT SIZE=2><A HREF="#bg15402a_main_toc">Table of Contents</A> </FONT></P>

<P ALIGN="CENTER" style="font-family:times;"><FONT SIZE=2><A NAME="dc15402_description_of_ual_capital_stock"> </A>
<A NAME="toc_dc15402_1"> </A>
<BR></FONT><FONT SIZE=2><B>  DESCRIPTION OF UAL CAPITAL STOCK    <BR>    </B></FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</FONT><FONT SIZE=2><I>The following description of UAL's capital stock includes a summary of certain provisions of
UAL's amended and restated certificate of incorporation and amended and restated bylaws. The following description of the terms of the Preferred Stock UAL may issue sets forth certain
general terms and provisions of any series of Preferred Stock to which any prospectus supplement may relate. Particular terms of the Preferred Stock offered by any prospectus supplement and the
extent, if any, to which these general terms and provisions shall apply to any series of Preferred Stock so offered will be described in the prospectus supplement relating to the applicable Preferred
Stock. The applicable prospectus supplement may also state that any of the terms set forth in this description are inapplicable to such series of Preferred Stock. This description of
UAL's capital stock does not purport to be complete and is subject to and qualified in its entirety by reference to applicable Delaware law and the provisions of UAL's
amended and restated certificate of incorporation and any applicable certificates of designations, which have been or will be filed with the SEC.</I></FONT></P>

<P style="font-family:times;;margin-left:10.0pt;text-indent:-10.0pt;"><FONT SIZE=2><B>


<!-- COMMAND=STYLE_ADDED,"margin-left:10.0pt;text-indent:-10.0pt;" -->


General  </B></FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;UAL is authorized to issue up to 1,000,000,000 shares of Common Stock, par value $0.01 per share ("UAL Common Stock"). UAL is also authorized to
issue 250,000,000 shares of Preferred Stock, without par value ("Serial Preferred Stock"), one share of Class Pilot MEC Junior Preferred Stock, par value $0.01 per share, and one share of Class IAM
Junior Preferred Stock, par value $0.01 per share. </FONT></P>

<P style="font-family:times;;margin-left:10.0pt;text-indent:-10.0pt;"><FONT SIZE=2><B>


<!-- COMMAND=STYLE_ADDED,"margin-left:10.0pt;text-indent:-10.0pt;" -->


Common Stock  </B></FONT></P>

<UL>

<P style="font-family:times;;margin-left:10.0pt;text-indent:-10.0pt;"><FONT SIZE=2><I>


<!-- COMMAND=STYLE_ADDED,"margin-left:10.0pt;text-indent:-10.0pt;" -->


Dividends  </I></FONT></P>

</UL>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The holders of UAL Common Stock will be entitled to receive dividends, if and when declared payable, from time to time by the UAL board of
directors (the "Board"). </FONT></P>

<UL>

<P style="font-family:times;;margin-left:10.0pt;text-indent:-10.0pt;"><FONT SIZE=2><I>


<!-- COMMAND=STYLE_ADDED,"margin-left:10.0pt;text-indent:-10.0pt;" -->


Liquidation  </I></FONT></P>

</UL>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Upon any liquidation, dissolution or winding up of UAL, after all securities ranking prior to UAL Common Stock, including any shares of
UAL's Serial Preferred Stock, Class Pilot MEC Junior Preferred Stock and Class IAM Junior Preferred Stock, have been paid in full that to which they are entitled, the holders of the
then outstanding shares of UAL Common Stock will be entitled to receive, pro rata, the remaining assets of UAL available for distribution to its stockholders. </FONT></P>

<UL>

<P style="font-family:times;;margin-left:10.0pt;text-indent:-10.0pt;"><FONT SIZE=2><I>


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Voting Rights  </I></FONT></P>

</UL>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Each outstanding share of UAL Common Stock will entitle the holder thereof to one vote on each matter submitted to a vote at a meeting of
stockholders. At meetings of stockholders, holders of UAL's Common Stock vote together as a single class with holders of UAL's Class Pilot MEC Junior Preferred Stock and
Class IAM Junior Preferred Stock on all matters except the election of directors to the Board. Except as otherwise required by UAL's amended and restated certificate of incorporation,
each director shall be elected by vote of a majority of the votes cast with respect to that director's election. However, if the number of director nominees exceeds the number of directors to be
elected at any meeting of stockholders as of the date that is 10&nbsp;days prior to the date UAL files its definitive proxy statement with the SEC, then each director shall be elected by a plurality
of the votes cast and entitled to vote on the election of directors. The affirmative vote of holders of shares of UAL's capital stock representing a majority of the votes present in
person or by proxy at the meeting and entitled to be cast on the matter will be required to approve any other matters. </FONT></P>

<P ALIGN="CENTER" style="font-family:times;"><FONT SIZE=2>5</FONT></P>

<HR NOSHADE>
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<UL>

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Other  </I></FONT></P>

</UL>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;UAL Common Stock is not convertible into, or exchangeable for, any other class or series of capital stock. Holders of UAL Common Stock have no
preemptive or other rights to subscribe for or purchase additional securities of UAL. UAL's amended and restated certificate of incorporation contains no sinking fund provisions or
redemption provisions with respect to the UAL Common Stock. Shares of UAL Common Stock are not subject to calls or assessments. No personal liability will attach to holders under the laws of the State
of Delaware (UAL's state of incorporation) or of the State of Illinois (the state in which UAL's principal place of business is located). There is no classification of
the Board. </FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;UAL
Common Stock is subject to a foreign ownership limitation. See "&#151;Foreign Ownership Limitation and Certain Anti-Takeover Provisions in UAL's Amended and
Restated Certificate of Incorporation and Amended and Restated Bylaws applicable to all UAL Capital Stock" below. </FONT></P>

<P style="font-family:times;;margin-left:10.0pt;text-indent:-10.0pt;"><FONT SIZE=2><B>



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Serial Preferred Stock  </B></FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Serial Preferred Stock may be issued independently or together with any other securities and may be attached to or separate from the securities. </FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Pursuant
to Delaware law and UAL's amended and restated certificate of incorporation, the Board by resolution, and without the approval of stockholders, may establish one
or more series of Serial Preferred Stock, fix the number of shares constituting such series and fix the designations and the powers, preferences and relative, participating, optional or other special
rights, if any, and the qualifications, limitations and restrictions thereof, of such series. Such rights, preferences, powers and limitations as may be established could have the effect of
discouraging an attempt to obtain control of UAL. </FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;If
the Board approves the issuance of a series of Serial Preferred Stock to be offered hereunder, a description will be filed with the SEC and the terms of such series will be described
in the prospectus supplement with respect to such series, including the following terms:</FONT></P>

<UL>
<DL compact>
<DT style='font-family:times;margin-bottom:-11pt;'><FONT SIZE=2>&#149;</FONT></DT><DD style="font-family:times;"><FONT SIZE=2> The number of shares constituting such series and the distinctive designation of the series; </FONT><FONT SIZE=2>
<BR><BR></FONT></DD><DT style='font-family:times;margin-bottom:-11pt;'><FONT SIZE=2>&#149;</FONT></DT><DD style="font-family:times;"><FONT SIZE=2> The dividend rate on the shares of the series, the conditions and dates upon which dividends thereon shall be payable, the extent, if any, to
which dividends thereon shall be cumulative, and the relative rights of preference, if any, of payment of dividends thereon; </FONT><FONT SIZE=2>
<BR><BR></FONT></DD><DT style='font-family:times;margin-bottom:-11pt;'><FONT SIZE=2>&#149;</FONT></DT><DD style="font-family:times;"><FONT SIZE=2> Whether or not the shares of the series are redeemable and, if redeemable, the time or times during which they shall be redeemable and the
amount per share payable on redemption thereof, which amount may, but need not, vary according to the time and circumstances of such redemption; </FONT><FONT SIZE=2>
<BR><BR></FONT></DD><DT style='font-family:times;margin-bottom:-11pt;'><FONT SIZE=2>&#149;</FONT></DT><DD style="font-family:times;"><FONT SIZE=2> The amount payable in respect of the shares of the series, in the event of any liquidation, dissolution or winding up of UAL, which amount may,
but need not, vary according to the time or circumstances of such action, and the relative rights of preference, if any, of payment of such amount; </FONT><FONT SIZE=2>
<BR><BR></FONT></DD><DT style='font-family:times;margin-bottom:-11pt;'><FONT SIZE=2>&#149;</FONT></DT><DD style="font-family:times;"><FONT SIZE=2> Any requirement as to a sinking fund for the shares of the series, or any requirement as to the redemption, purchase or other retirement by UAL
of the shares of the series; </FONT><FONT SIZE=2>
<BR><BR></FONT></DD><DT style='font-family:times;margin-bottom:-11pt;'><FONT SIZE=2>&#149;</FONT></DT><DD style="font-family:times;"><FONT SIZE=2> The right, if any, to exchange or convert shares of the series into other securities or property, and the rate or basis, time, manner and
condition of exchange or conversion; </FONT><FONT SIZE=2>
<BR><BR></FONT></DD><DT style='font-family:times;margin-bottom:-11pt;'><FONT SIZE=2>&#149;</FONT></DT><DD style="font-family:times;"><FONT SIZE=2> The voting rights, if any, to which the holders of shares of the series shall be entitled in addition to the voting rights provided by law; and </FONT></DD></DL>
</UL>
<P ALIGN="CENTER" style="font-family:times;"><FONT SIZE=2>6</FONT></P>

<HR NOSHADE>
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<UL>
<DL compact>
<DT style='font-family:times;margin-bottom:-11pt;'><FONT SIZE=2>&#149;</FONT></DT><DD style="font-family:times;"><FONT SIZE=2> Any other term, condition or provision with respect to the series not inconsistent with the provisions of Article Fourth, Part&nbsp;I of
UAL's amended and restated certificate of incorporation or any resolution adopted by the Board pursuant thereto. </FONT></DD></DL>
</UL>

<P style="font-family:times;;margin-left:10.0pt;text-indent:-10.0pt;"><FONT SIZE=2><B>


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Class Pilot MEC Junior Preferred Stock  </B></FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;UAL currently has one share of Class Pilot MEC Junior Preferred Stock outstanding, which may be held only by the United Airlines Pilots Master
Executive Council (the "MEC") of the Air Line Pilots Association, International ("ALPA") or a duly authorized agent acting for the benefit of the MEC, and may only be transferred in certain limited
circumstances specified in UAL's amended and restated certificate of incorporation. </FONT></P>

<UL>


<P style="font-family:times;;margin-left:10.0pt;text-indent:-10.0pt;"><FONT SIZE=2><I>


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Dividends  </I></FONT></P>

</UL>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The holder of the Class Pilot MEC Junior Preferred Stock is not entitled to receive dividends or other distributions, except as described under
"&#151;Liquidation" below. </FONT></P>

<UL>

<P style="font-family:times;;margin-left:10.0pt;text-indent:-10.0pt;"><FONT SIZE=2><I>


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Liquidation  </I></FONT></P>

</UL>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Upon any liquidation, dissolution or winding up of UAL, after all securities ranking prior to the Class Pilot MEC Junior Preferred Stock,
including any shares of UAL's Serial Preferred Stock, have been paid in full that to which they are entitled, the holder of the Class Pilot MEC Junior Preferred Stock will be entitled
to receive $0.01 for the share of Class Pilot MEC Junior Preferred Stock, but such holder shall not be entitled to any further payment. </FONT></P>

<UL>

<P style="font-family:times;;margin-left:10.0pt;text-indent:-10.0pt;"><FONT SIZE=2><I>


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Voting Rights  </I></FONT></P>

</UL>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The holder of the share of Class Pilot MEC Junior Preferred Stock has the following voting rights: </FONT></P>

<UL>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(a)&nbsp;&nbsp;&nbsp;Until
such time (the "ALPA Termination Date") as there are no longer any persons represented by ALPA (or a successor to the MEC by merger or reorganization of ALPA)
employed by UAL or any of its affiliates or the collective bargaining agreement between UAL or any of its affiliates and ALPA has been amended so that such agreement no longer provides that ALPA has
the right to appoint a director to the Board, the holder of the share of Class Pilot MEC Junior Preferred Stock shall have the right (i)&nbsp;voting as a separate class, to (1)&nbsp;elect one
director to the Board at each annual meeting of stockholders for a term of office to expire at the succeeding annual meeting of stockholders, (2)&nbsp;remove such director with or without cause and
(3)&nbsp;fill any vacancies in such directorship resulting from death,
resignation, disqualification, removal or other cause; and (ii)&nbsp;voting together as a single class with the holders of UAL Common Stock and the holders of such other classes or series of stock
that vote together with the UAL Common Stock as a single class, to vote on all matters submitted to a vote of the holders of UAL Common Stock (other than the election of directors), except as
otherwise required by law. </FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(b)&nbsp;&nbsp;&nbsp;The
affirmative vote of the holder of the share of Class Pilot MEC Junior Preferred Stock, voting as a separate class, is necessary to authorize, effect or validate any
amendment, alteration or repeal (including any amendment, alteration or repeal by operation of merger or consolidation) of any of the provisions of UAL's amended and restated
certificate of incorporation that would adversely affect the powers, preferences or special rights of the Class Pilot MEC Junior Preferred Stock. </FONT></P>

</UL>
<P ALIGN="CENTER" style="font-family:times;"><FONT SIZE=2>7</FONT></P>

<HR NOSHADE>
<P style='font-family:times;page-break-before:always'></p>
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<UL>


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Redemption  </I></FONT></P>

</UL>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The share of Class Pilot MEC Junior Preferred Stock will be automatically redeemed by UAL, at a price of $0.01 per share, on the ALPA
Termination Date or upon any purported transfer thereof other than as expressly permitted under UAL's amended and restated certificate of incorporation. </FONT></P>

<UL>

<P style="font-family:times;;margin-left:10.0pt;text-indent:-10.0pt;"><FONT SIZE=2><I>


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Ranking  </I></FONT></P>

</UL>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The Class Pilot MEC Junior Preferred Stock is deemed to rank on a parity with the Class IAM Junior Preferred Stock and senior to the UAL Common
Stock as to amounts distributable upon liquidation, dissolution or winding up of UAL. </FONT></P>

<P style="font-family:times;;margin-left:10.0pt;text-indent:-10.0pt;"><FONT SIZE=2><B>


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Class IAM Junior Preferred Stock  </B></FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;UAL currently has one share of Class IAM Junior Preferred Stock outstanding, which may be held only by the International Association of
Machinists and Aerospace Workers (the "IAM") or a duly authorized agent acting for the benefit of the IAM, and may only be transferred in certain limited circumstances specified in
UAL's amended and restated certificate of incorporation. </FONT></P>

<UL>

<P style="font-family:times;;margin-left:10.0pt;text-indent:-10.0pt;"><FONT SIZE=2><I>


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Dividends  </I></FONT></P>

</UL>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The holder of the Class IAM Junior Preferred Stock is not entitled to receive dividends or other distributions, except as described under
"&#151;Liquidation" below. </FONT></P>

<UL>

<P style="font-family:times;;margin-left:10.0pt;text-indent:-10.0pt;"><FONT SIZE=2><I>



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Liquidation  </I></FONT></P>

</UL>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Upon any liquidation, dissolution or winding up of UAL, after all securities ranking prior to the Class IAM Junior Preferred Stock, including
any shares of UAL's Serial Preferred Stock, have been paid in full that to which they are entitled, the holder of the Class IAM Junior Preferred Stock will be entitled to receive $0.01
for the share of Class IAM Junior Preferred Stock, but such holder shall not be entitled to any further payment. </FONT></P>

<UL>

<P style="font-family:times;;margin-left:10.0pt;text-indent:-10.0pt;"><FONT SIZE=2><I>


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Voting Rights  </I></FONT></P>

</UL>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The holder of the share of Class IAM Junior Preferred Stock has the following voting rights: </FONT></P>

<UL>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(a)&nbsp;&nbsp;&nbsp;Until
such time (the "IAM Termination Date") as there are no longer any persons represented by the IAM (or a successor to the IAM by merger or reorganization of the IAM)
employed by UAL or any of its affiliates or a certain letter agreement between UAL and the IAM no longer provides that
the IAM has the right to appoint a director to the Board, the holder of the share of Class IAM Junior Preferred Stock shall have the right (i)&nbsp;voting as a separate class, to (1)&nbsp;elect
one director to the Board at each annual meeting of stockholders for a term of office to expire at the succeeding annual meeting of stockholders, (2)&nbsp;remove such director with or without cause
and (3)&nbsp;fill any vacancies in such directorship resulting from death, resignation, disqualification, removal or other cause; and (ii)&nbsp;voting together as a single class with the holders
of UAL Common Stock and the holders of such other classes or series of stock that vote together with the UAL Common Stock as a single class, to vote on all matters submitted to a vote of the holders
of UAL Common Stock (other than the election of directors), except as otherwise required by law. </FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(b)&nbsp;&nbsp;&nbsp;The
affirmative vote of the holder of the share of Class IAM Junior Preferred Stock, voting as a separate class, is necessary to authorize, effect or validate any
amendment, alteration or repeal (including any amendment, alteration or repeal by operation of merger or consolidation) of any of the provisions of UAL's amended and restated
certificate of incorporation that would adversely affect the powers, preferences or special rights of the Class IAM Junior Preferred Stock. </FONT></P>

</UL>
<P ALIGN="CENTER" style="font-family:times;"><FONT SIZE=2>8</FONT></P>

<HR NOSHADE>
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Redemption  </I></FONT></P>

</UL>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The share of Class IAM Junior Preferred Stock will be automatically redeemed by UAL, at a price of $0.01 per share, on the IAM Termination Date
or upon any purported transfer thereof other than as expressly permitted under UAL's amended and restated certificate of incorporation. </FONT></P>

<UL>

<P style="font-family:times;;margin-left:10.0pt;text-indent:-10.0pt;"><FONT SIZE=2><I>


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Ranking  </I></FONT></P>

</UL>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The Class IAM Junior Preferred Stock is deemed to rank on a parity with the Class Pilot MEC Junior Preferred Stock and senior to the UAL Common
Stock as to amounts distributable upon liquidation, dissolution or winding up of UAL. </FONT></P>

<P style="font-family:times;;margin-left:10.0pt;text-indent:-10.0pt;"><FONT SIZE=2><B>


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Foreign Ownership Limitation and Certain Anti-Takeover Provisions in UAL's Amended and
Restated Certificate of Incorporation and Amended and Restated Bylaws applicable to all UAL Capital Stock  </B></FONT></P>

<UL>

<P style="font-family:times;;margin-left:10.0pt;text-indent:-10.0pt;"><FONT SIZE=2><I>


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Foreign Ownership Limitation  </I></FONT></P>

</UL>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;UAL's amended and restated certificate of incorporation limits the total number of shares of equity securities held by all
persons who fail to qualify as citizens of the United States to having no more than 24.9% of the voting power of all outstanding equity securities of UAL. </FONT></P>

<UL>

<P style="font-family:times;;margin-left:10.0pt;text-indent:-10.0pt;"><FONT SIZE=2><I>


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Undesignated Preferred Stock  </I></FONT></P>

</UL>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The ability to authorize undesignated Preferred Stock makes it possible for the Board to issue Preferred Stock with super voting, dividend or
other special rights or preferences on a discriminatory basis that could impede the success of any attempt to acquire UAL. These and other provisions may have the effect of deferring, delaying or
discouraging hostile takeovers, or changes in control or management of UAL. </FONT></P>

<UL>

<P style="font-family:times;;margin-left:10.0pt;text-indent:-10.0pt;"><FONT SIZE=2><I>


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Requirements for Advance Notification of Stockholder Meetings, Nominations and Proposals  </I></FONT></P>

</UL>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;UAL's amended and restated bylaws provide that special meetings of the stockholders may be called only (i)&nbsp;by both the
Chief Executive Officer and the Chairman of the Board, (ii)&nbsp;by the Board or (iii)&nbsp;subject to certain requirements set forth in UAL's amended and restated bylaws, upon the
written request of one or more stockholders of record of UAL that together have continuously held, for their own account or on behalf of others, beneficial ownership of at least a 25% aggregate "net
long position" (as defined in UAL's amended and restated bylaws) of the outstanding UAL Common Stock for at least one year prior to the date such request is delivered to UAL. </FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;UAL's
amended and restated bylaws establish advance notice procedures with respect to stockholder proposals for annual meetings and the nomination of candidates for
election as directors to the Board, other than nominations by ALPA or the IAM or nominations made by or at the direction of the Board or a committee of the Board. In order for any matter to be
"properly brought" before a meeting, a stockholder will have to comply with advance notice requirements and provide UAL with certain information. Additionally, vacancies and newly created
directorships may be filled by a vote of a majority of the directors then in office, even though less than a quorum. UAL's amended and restated bylaws allow the Chief Executive Officer
or Chairman, or his or her designee, to preside at a meeting to adopt rules and regulations for the conduct of meetings which may have the effect of precluding the conduct of certain business at a
meeting if the rules and regulations are not followed. These provisions may also defer, delay or discourage a potential acquiror from conducting a solicitation of proxies to elect the acquiror's own
slate of directors or otherwise attempting to obtain control of UAL. </FONT></P>

<P ALIGN="CENTER" style="font-family:times;"><FONT SIZE=2>9</FONT></P>

<HR NOSHADE>
<P style='font-family:times;page-break-before:always'></p>
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Proxy Access  </I></FONT></P>

</UL>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;UAL's amended and restated bylaws contain a proxy access right provision to permit a stockholder or group of up to 20
stockholders satisfying specified eligibility requirements to include director nominees in UAL's proxy materials for annual meetings of stockholders. The maximum number of stockholder
nominees permitted under these proxy access provisions is the greater of two or 20% of the Board elected by the holders of UAL Common Stock. To be eligible to use these proxy access provisions, such
stockholder (or group) must, among other requirements:</FONT></P>

<UL>
<DL compact>
<DT style='font-family:times;margin-bottom:-11pt;'><FONT SIZE=2>&#149;</FONT></DT><DD style="font-family:times;"><FONT SIZE=2> have continuously owned 3% or more of the outstanding shares of UAL Common Stock throughout the three-year period preceding the date of the
nomination notice, and continue to own at least 3% or more of the outstanding shares of UAL Common Stock through the date of the annual meeting; </FONT><FONT SIZE=2>
<BR><BR></FONT></DD><DT style='font-family:times;margin-bottom:-11pt;'><FONT SIZE=2>&#149;</FONT></DT><DD style="font-family:times;"><FONT SIZE=2> represent that such stockholder (or group) did not acquire, and is not holding, such shares of UAL Common Stock for the purpose, or with the
effect, of influencing or changing control of UAL; and </FONT><FONT SIZE=2>
<BR><BR></FONT></DD><DT style='font-family:times;margin-bottom:-11pt;'><FONT SIZE=2>&#149;</FONT></DT><DD style="font-family:times;"><FONT SIZE=2> provide a written notice requesting the inclusion of director nominees in UAL's proxy materials and provide other required
information to UAL not earlier than the close of business on the 150th&nbsp;day and not later than the close of business on the 120th&nbsp;day prior to the anniversary of the mailing date of
UAL's proxy statement for the prior year's annual meeting of stockholders (with adjustments if the date for the upcoming annual meeting of stockholders is more than 30&nbsp;days
before or after the anniversary date of the prior year's annual meeting). </FONT></DD></DL>
</UL>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The
foregoing proxy access right is subject to additional eligibility, procedural and disclosure requirements set forth in UAL's amended and restated bylaws. </FONT></P>

<UL>

<P style="font-family:times;;margin-left:10.0pt;text-indent:-10.0pt;"><FONT SIZE=2><I>


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No Stockholder Action by Written Consent  </I></FONT></P>

</UL>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Pursuant to Section&nbsp;228 of the Delaware General Corporation Law (the "DGCL"), any action required to be taken at any
annual or special meeting of the stockholders may be taken without a meeting, without prior notice and without a vote if a consent or consents in writing, setting forth the action so taken, is signed
by the holders of outstanding stock having not less than the minimum number of votes that would be necessary to authorize or take such action at a meeting at which all shares of stock entitled to vote
thereon were present and voted, unless UAL's amended and restated certificate of incorporation provides otherwise. UAL's amended and restated certificate of incorporation
provides that any action required or permitted to be taken by UAL stockholders must be effected at a duly called annual or special meeting of stockholders and may not be effected by consent in writing
by such stockholders. </FONT></P>

<P ALIGN="CENTER" style="font-family:times;"><FONT SIZE=2>10</FONT></P>

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</FONT></P>

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<P style="font-family:times;"><FONT SIZE=2><A HREF="#bg15402a_main_toc">Table of Contents</A> </FONT></P>

<P ALIGN="CENTER" style="font-family:times;"><FONT SIZE=2><A NAME="de15402_description_of_debt_securities_and_guarantees"> </A>
<A NAME="toc_de15402_1"> </A>
<BR></FONT><FONT SIZE=2><B>  DESCRIPTION OF DEBT SECURITIES AND GUARANTEES    <BR>    </B></FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</FONT><FONT SIZE=2><I>The following description of the terms of the debt securities sets forth certain general terms and provisions of the
debt securities to which any prospectus supplement may relate. The particular terms of the debt securities offered by any prospectus supplement and the extent, if any, to which these general
provisions may apply to those debt securities will be described in the prospectus supplement relating to those debt securities. Accordingly, for a description of the terms of a particular issue of
debt securities, reference must be made to the prospectus supplement relating thereto and, to the extent applicable, the following description.</I></FONT></P>


<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;UAL
or United may issue debt securities from time to time in one or more series. The debt securities will be general obligations of the applicable issuer. The debt securities issued by
UAL or United may be fully and unconditionally guaranteed on a secured or unsecured senior or subordinated basis by the other of such companies. If any series of debt securities will be subordinated
to other indebtedness that the applicable issuer has outstanding or may incur, the terms of the subordination will be set forth in
the prospectus supplement relating to the subordinated debt securities. Debt securities will be issued under one or more indentures between one or more of us and one or more trustees named in the
prospectus supplement. The indenture that UAL and United expect to use has been filed with the SEC and is listed as an exhibit to the registration statement. The following discussion of certain
provisions of the indenture is a summary only and should not be considered a complete description of the terms and provisions of the indenture. Accordingly, the following discussion is qualified in
its entirety by reference to the provisions of the indenture, including the definition of certain terms used below. </FONT></P>

<P style="font-family:times;;margin-left:10.0pt;text-indent:-10.0pt;"><FONT SIZE=2><B>


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General  </B></FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The debt securities will represent direct, unsecured, general obligations of UAL or United and:</FONT></P>

<UL>
<DL compact>
<DT style='font-family:times;margin-bottom:-11pt;'><FONT SIZE=2>&#149;</FONT></DT><DD style="font-family:times;"><FONT SIZE=2> may rank equally with other unsubordinated debt or may be subordinated to other debt the issuer has or may incur; </FONT> <FONT SIZE=2>
<BR><BR></FONT></DD><DT style='font-family:times;margin-bottom:-11pt;'><FONT SIZE=2>&#149;</FONT></DT><DD style="font-family:times;"><FONT SIZE=2> may be issued in one or more series with the same or various maturities; </FONT><FONT SIZE=2>
<BR><BR></FONT></DD><DT style='font-family:times;margin-bottom:-11pt;'><FONT SIZE=2>&#149;</FONT></DT><DD style="font-family:times;"><FONT SIZE=2> may be issued at a price of 100% of their principal amount or at a premium or discount; </FONT><FONT SIZE=2>
<BR><BR></FONT></DD><DT style='font-family:times;margin-bottom:-11pt;'><FONT SIZE=2>&#149;</FONT></DT><DD style="font-family:times;"><FONT SIZE=2> may be issued in registered or bearer form and certificated or uncertificated form; and </FONT><FONT SIZE=2>
<BR><BR></FONT></DD><DT style='font-family:times;margin-bottom:-11pt;'><FONT SIZE=2>&#149;</FONT></DT><DD style="font-family:times;"><FONT SIZE=2> may be represented by one or more global notes registered in the name of a designated depositary's nominee, and if so, beneficial interests in
the global note will be shown on and transfers will be made only through records maintained by the designated depositary and its participants. </FONT></DD></DL>
</UL>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The
aggregate principal amount of debt securities that we may authenticate and deliver is unlimited. The debt securities may be issued in one or more series as the issuer may authorize
from time to time. You should refer to the applicable prospectus supplement for the following terms of the debt securities of the series with respect to which that prospectus supplement is being
delivered: </FONT></P>

<UL>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(1)&nbsp;&nbsp;&nbsp;the
identity of the issuer of such debt securities; </FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(2)&nbsp;&nbsp;&nbsp;the
form and title of the debt securities of the series (which shall distinguish the debt securities of that particular series from the debt securities of any other
series); </FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(3)&nbsp;&nbsp;&nbsp;the
price or prices of the debt securities of the series; </FONT></P>


<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(4)&nbsp;&nbsp;&nbsp;any
limit upon the aggregate principal amount of the debt securities of the series that may be authenticated and delivered under the indenture (except for debt
securities authenticated </FONT></P>

</UL>
<P ALIGN="CENTER" style="font-family:times;"><FONT SIZE=2>11</FONT></P>

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<UL>

<P style="font-family:times;"><FONT SIZE=2>and
delivered upon registration of transfer of, or in exchange for, or in lieu of, other debt securities of the series); </FONT></P>


<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(5)&nbsp;&nbsp;&nbsp;the
date or dates on which the principal and premium with respect to the debt securities of the series are payable; </FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(6)&nbsp;&nbsp;&nbsp;the
rate or rates (which may be fixed or variable) at which the debt securities of the series shall bear interest, if any, or the method of determining such rate or
rates, the date or dates from which such interest, if any, shall accrue, the interest payment dates on which such interest, if any, shall be payable or the method by which such dates will be
determined, the record dates for the determination of holders thereof to whom such interest is payable (in the case of securities in registered form), and the basis upon which such interest will be
calculated if other than that of a 360-day year of twelve 30-day months; </FONT></P>


<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(7)&nbsp;&nbsp;&nbsp;the
currency or currencies in which debt securities of the series shall be denominated, if other than U.S. dollars, the place or places, if any, in addition to or
instead of the corporate trust office of the trustee (in the case of securities in registered form) or the principal New York office of the trustee (in the case of securities in bearer form), where
the principal, premium and interest with respect to debt securities of the series shall be payable or the method of such payment, if by wire transfer, mail or other means; </FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(8)&nbsp;&nbsp;&nbsp;the
price or prices at which, the period or periods within which, and the terms and conditions upon which debt securities of the series may be redeemed, in whole or in
part, at the issuer's option or otherwise; </FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(9)&nbsp;&nbsp;&nbsp;whether
debt securities of the series are to be issued as securities in registered form or as securities in bearer form or both and, if securities in bearer form are to
be issued, whether coupons will be attached to them, whether securities in bearer form of the series may be exchanged for securities in registered form of the series, and the circumstances under which
and the places at which any such exchanges, if permitted, may be made; </FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(10)&nbsp;if
any debt securities of the series are to be issued as securities in bearer form or as one or more global securities representing individual securities in bearer form
of the series, whether certain provisions for the payment of additional interest or tax redemptions shall apply; whether interest with respect to any portion of a temporary bearer security of the
series payable with respect to any interest payment date prior to the exchange of such temporary bearer security for definitive securities in bearer form of the series shall be paid to any clearing
organization with respect to the portion of such temporary bearer security held for its account and, in such event, the terms and conditions (including any certification requirements) upon which any
such interest payment received by a clearing organization will be credited to the persons entitled to interest payable on such interest payment date; and the terms upon which a temporary security in
bearer form may be exchanged for one or more definitive securities in bearer form of the series; </FONT></P>


<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(11)&nbsp;the
issuer's obligation, if any, to redeem, purchase or repay debt securities of the series pursuant to any sinking fund or analogous provisions or at the option of a
holder of such debt securities and the price or prices at which, the period or periods within which, and the terms and conditions upon which debt securities of the series shall be redeemed, purchased
or repaid, in whole or in part, pursuant to such obligations; </FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(12)&nbsp;the
terms, if any, upon which the debt securities of the series may be convertible into or exchanged for the issuer's or UAL Common Stock, Preferred Stock, other debt
securities or warrants for UAL Common Stock, Preferred Stock, indebtedness or other securities of any kind and the terms and conditions upon which such conversion or exchange shall be effected,
including the initial conversion or exchange price or rate, the conversion or exchange period and any other additional provisions; </FONT></P>

</UL>
<P ALIGN="CENTER" style="font-family:times;"><FONT SIZE=2>12</FONT></P>

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<UL>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(13)&nbsp;if
other than denominations of $1,000 or any integral multiple thereof, the denominations in which debt securities of the series shall be issuable; </FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(14)&nbsp;if
the amount of principal, premium or interest with respect to the debt securities of the series may be determined with reference to an index or pursuant to a formula,
the manner in which such amounts will be determined; </FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(15)&nbsp;if
the principal amount payable at the stated maturity of debt securities of the series will not be determinable as of any one or more dates prior to such stated
maturity, the amount that will be deemed to be such principal amount as of any such date for any purpose, including the principal amount thereof which will be due and payable upon any maturity other
than the stated maturity or which will be deemed to be outstanding as of any such date (or, in any such case, the manner in which such deemed principal amount is to be determined), and if necessary,
the manner of determining the equivalent thereof in U.S. dollars; </FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(16)&nbsp;any
changes or additions to the provisions of the indenture dealing with defeasance; </FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(17)&nbsp;if
other than the entire principal amount thereof, the portion of the principal amount of debt securities of the series that shall be payable upon declaration of
acceleration of the maturity thereof or provable in bankruptcy; </FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(18)&nbsp;the
terms, if any, of the transfer, mortgage, pledge or assignment as security for the debt securities of the series of any properties, assets, moneys, proceeds,
securities or other collateral, including whether certain provisions of the Trust Indenture Act of 1939, as amended (the "Trust Indenture Act"), are applicable and any corresponding changes to
provisions of the indenture as then in effect; </FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(19)&nbsp;any
addition to or change in the events of default with respect to the debt securities of the series and any change in the right of the trustee or the holders of such
series of debt securities to declare the principal, premium and interest, if any, on such series of debt securities due and payable; </FONT></P>


<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(20)&nbsp;if
the debt securities of the series shall be issued in whole or in part in the form of a global security, the terms and conditions, if any, upon which such global
security may be exchanged in whole or in part for other individual debt securities of the series in definitive registered form, the depositary (as defined in the applicable prospectus supplement) for
such global security and the form of any legend or legends to be borne by any such global security in addition to or in lieu of the legend referred to in the indenture; </FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(21)&nbsp;any
trustee, authenticating agent, paying agent, transfer agent or registrar for the debt securities of the series and any office or agency of any of the foregoing for
purposes of such series of debt securities; </FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(22)&nbsp;the
applicability of the covenants set forth in the indenture to the debt securities of the series, any change in such covenants or related defined terms to the extent
applicable to the debt securities of the series and any additions to the covenants applicable to the debt securities of the series; </FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(23)&nbsp;the
form and terms, if any, of any guarantee of the payment of principal, premium and interest with respect to debt securities of the series, the identity of any
guarantor with respect to such guarantee and any corresponding changes to the provisions of the indenture and as then in effect; </FONT></P>


<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(24)&nbsp;the
subordination, if any, of the debt securities of the series pursuant to the indenture and any changes or additions to the provisions of the indenture then in effect
relating to subordination; </FONT></P>

</UL>
<P ALIGN="CENTER" style="font-family:times;"><FONT SIZE=2>13</FONT></P>

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<UL>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(25)&nbsp;with
regard to debt securities of the series that do not bear interest, the dates for certain required reports to the trustee; and </FONT></P>


<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(26)&nbsp;any
other terms of the debt securities of the series (which terms shall not be prohibited by the provisions of the indenture). </FONT></P>

</UL>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Unless
otherwise provided in the applicable prospectus supplement, securities in registered form may be transferred or exchanged at the office of the trustee at which its corporate trust
business is principally administered in the United States or at the office of the trustee or the trustee's agent in the Borough of Manhattan, the City and State of New York, at which its corporate
agency business is conducted, subject to the limitations provided in the indenture, without the payment of any service charge, other than any tax or governmental charge payable in connection
therewith. Securities in bearer form will be transferable only by delivery. Provisions with respect to the exchange of securities in bearer form will be described in the prospectus supplement relating
to those securities in bearer form. </FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Neither
the issuer nor the registrar for the debt securities will be required (a)&nbsp;to issue, register the transfer of or exchange the debt securities of any series for the period
beginning at the opening of business 15&nbsp;days immediately preceding the mailing of a notice of redemption of the debt securities of that series selected for redemption and ending at the close of
business on the day of such mailing or (b)&nbsp;to register the transfer of or exchange the debt securities of any series selected, called or being called for redemption as a whole or the portion
being redeemed of any such debt securities selected, called or being called for redemption in part. </FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;All
funds which the issuer pays to a paying agent or the trustee for the payment of principal of, premium, if any, or interest on any debt securities that remain unclaimed at the end of
two years after such principal, premium, if any, or interest has become due and payable will be repaid to the issuer on its request, and the holders of such debt securities will thereafter look only
to the issuer for payment thereof. </FONT></P>


<P style="font-family:times;;margin-left:10.0pt;text-indent:-10.0pt;"><FONT SIZE=2><B>


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Global Securities  </B></FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The debt securities of a series may be issued in whole or in part in the form of one or more global securities. A global security is a debt
security that represents, and is denominated in an amount equal to the aggregate principal amount of, all outstanding debt securities of a series, or any portion thereof, in either case having the
same terms, including the same original issue date, date or dates on which principal and interest are due and interest rate or method of determining interest. A global security will bear the legend as
prescribed in the indenture. A global security will be deposited with, or on behalf of, a depositary, which will be identified in the prospectus supplement relating to such debt securities. Global
securities may be issued in either registered or bearer form and in either temporary or definitive form. Unless and until it is exchanged in whole or in part for the individual debt securities
represented thereby, a global security may not be transferred except as a whole by the depositary to a nominee of the depositary, by a nominee of the depositary to the depositary or another nominee of
the depositary or by the depositary or any nominee of the depositary to a successor depositary or any nominee of such successor depositary. </FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The
specific terms of the depositary arrangement with respect to a series of debt securities will be described in the prospectus supplement relating to such debt securities. We
anticipate that the following provisions will generally apply to depositary arrangements. </FONT></P>


<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Upon
the issuance of a global security, the depositary for such global security will credit, on its book entry registration and transfer system, the respective principal amounts of the
individual debt securities represented by such global security to the accounts of persons that have accounts with the depositary ("participants"). Such accounts shall be designated by the dealers or
underwriters with respect to such debt securities or, if such debt securities are offered and sold directly by the issuer or </FONT></P>

<P ALIGN="CENTER" style="font-family:times;"><FONT SIZE=2>14</FONT></P>

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<P style="font-family:times;"><FONT SIZE=2>through
one or more agents, by the issuer or such agents. Ownership of beneficial interests in a global security will be limited to participants or persons that hold beneficial interests through
participants. Ownership of beneficial interests in such global security will be shown on, and the transfer of that ownership will be effected only through, records maintained by the depositary (with
respect to interests of participants) or records maintained by participants (with respect to interests of persons other than participants). The laws of some states require that certain purchasers of
securities take physical delivery of such securities in definitive form. Such limitations and laws may impair the ability to transfer beneficial interests in a global security. </FONT></P>


<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;So
long as the depositary for a global security, or its nominee, is the registered owner or holder of such global security, such depositary or nominee, as the case may be, will be
considered the sole owner or holder of the individual debt securities represented by such global security for all purposes under the indenture. Except as provided below, owners of beneficial interests
in a global security will not be entitled to have any of the individual debt securities represented by such global security registered in their names, will not receive or be entitled to receive
physical delivery of any of such debt securities in definitive form, and will not be considered the owners or holders thereof under the indenture. </FONT></P>


<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Subject
to the restrictions applicable to securities in bearer form described in an applicable prospectus supplement (see "&#151;Limitations on Issuance of Securities in Bearer
Form" below), payments of principal, premium, and interest with respect to individual debt securities represented by a global security will be made to the depositary or its nominee, as the case may
be, as the registered owner or holder of such global security. Neither the issuer, the trustee, any paying agent or registrar for such debt securities nor any agent of the issuer or the trustee will
have any responsibility or liability for: </FONT></P>

<UL>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(1)&nbsp;&nbsp;&nbsp;any
aspect of the records relating to or payments made by the depositary, its nominee or any participants on account of beneficial interests in a global security or for
maintaining, supervising or reviewing any records relating to such beneficial interests; </FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(2)&nbsp;&nbsp;&nbsp;the
payment to the owners of beneficial interests in the global security of amounts paid to the depositary or its nominee; or </FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(3)&nbsp;&nbsp;&nbsp;any
other matter relating to the actions and practices of the depositary, its nominee or its participants. </FONT></P>

</UL>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;None
of the issuer, the trustee, any paying agent or registrar for such debt securities or any agent of the issuer or the trustee will be liable for any delay by the depositary, its
nominee or any of its participants in identifying the owners of beneficial interests in the global security, and the issuer and the trustee may conclusively rely on, and will be protected in relying
on, instructions from the depositary or its nominee for all purposes. </FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;We
expect that the depositary for a series of debt securities or its nominee, upon receipt of any payment of principal, premium or interest with respect to a definitive global security
representing any of such debt securities, will immediately credit applicable participants' accounts with payments in amounts proportionate to their respective beneficial interests in the principal
amount of such global security, as shown on the records of the depositary or its nominee. We also expect that payments by participants to owners of beneficial interests in such global security held
through such participants will be governed by standing instructions and customary practices, as is now the case with securities held for the accounts of customers and registered in "street name." Such
payments will be the responsibility of such participants. Receipt by owners of beneficial interests in a temporary global security of payments of principal, premium or interest with respect thereto
will be subject to the restrictions described in an applicable prospectus supplement (see "&#151;Limitation on Issuance of Securities in Bearer Form" below). </FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;If
the depositary for a series of debt securities is at any time unwilling, unable or ineligible to continue as depositary, the issuer shall appoint a successor depositary. If a
successor depositary is not appointed by the issuer within 90&nbsp;days, the issuer will issue individual debt securities of such series in </FONT></P>

<P ALIGN="CENTER" style="font-family:times;"><FONT SIZE=2>15</FONT></P>

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<P style="font-family:times;"><FONT SIZE=2>exchange
for the global security representing such series of debt securities. In addition, the issuer may at any time and in its sole discretion, subject to any limitations described in the prospectus
supplement relating to such debt securities, determine to no longer have debt securities of a series represented by a global security and, in such event, will issue individual debt securities of such
series in exchange for the global security representing such series of debt securities. Furthermore, if an event of default with respect to the debt securities of a series represented by a global
security shall have happened and be continuing and owners of beneficial interests in such global security in an amount not less than a
majority of the aggregate outstanding principal amount of such global security have delivered to the issuer and the trustee a notice indicating that the continuation of the book-entry system through
such depositary is no longer in the best interests of the holders of the beneficial interests, such global security will be exchangeable for individual debt securities of such series. </FONT></P>


<P style="font-family:times;;margin-left:10.0pt;text-indent:-10.0pt;"><FONT SIZE=2><B>


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Limitations on Issuance of Securities in Bearer Form  </B></FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The debt securities of a series may be issued as securities in registered form (which will be registered as to principal and interest in the
register maintained by the registrar for such debt securities) or securities in bearer form (which will be transferable only by delivery). If such debt securities are issuable as securities in bearer
form, the applicable prospectus supplement will describe certain special limitations and considerations that will apply to such debt securities. </FONT></P>

<P style="font-family:times;;margin-left:10.0pt;text-indent:-10.0pt;"><FONT SIZE=2><B>



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Certain Covenants  </B></FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;If debt securities are issued, the indenture, as supplemented for a particular series of debt securities, will contain certain covenants for the
benefit of the holders of such series of debt securities, which will be applicable (unless waived or amended) so long as any of the debt securities of such series are outstanding, unless stated
otherwise in the prospectus supplement. The specific terms of the covenants, and summaries thereof, will be set forth in the prospectus supplement relating to such series of debt securities. </FONT></P>


<P style="font-family:times;;margin-left:10.0pt;text-indent:-10.0pt;"><FONT SIZE=2><B>


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Subordination  </B></FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Debt securities of a series, and any guarantees of such securities, may be subordinated, which we refer to as subordinated debt securities, to
senior indebtedness (as defined in the applicable prospectus supplement) to the extent set forth in the prospectus supplement relating thereto. To the extent the issuer of any debt securities conducts
operations through subsidiaries of such issuer, the holders of such debt securities (whether or not subordinated debt securities) will be structurally subordinated to the creditors of such
subsidiaries except to the extent such subsidiary is a guarantor of such series of debt securities. </FONT></P>


<P style="font-family:times;;margin-left:10.0pt;text-indent:-10.0pt;"><FONT SIZE=2><B>


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Events of Default  </B></FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Each of the following constitutes an event of default under the indenture with respect to any series of debt securities: </FONT></P>

<UL>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(1)&nbsp;&nbsp;&nbsp;default
in any payment of the principal or premium, if any, on the debt securities of that series, when such amount becomes due and payable at maturity, upon
acceleration, redemption or otherwise; </FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(2)&nbsp;&nbsp;&nbsp;failure
to pay interest on any debt security of that series when such interest becomes due and payable, and such failure continues for a period of 30&nbsp;days; </FONT></P>


<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(3)&nbsp;&nbsp;&nbsp;failure
to comply for 60&nbsp;days after notice with any of the covenants or agreements applicable to the debt securities of that series (other than those referred to
in (1)&nbsp;or (2)&nbsp;above) or the indenture or supplemental indenture related to that series of debt securities; or </FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(4)&nbsp;&nbsp;&nbsp;certain
events of bankruptcy, insolvency or reorganization affecting the issuer. </FONT></P>

</UL>
<P ALIGN="CENTER" style="font-family:times;"><FONT SIZE=2>16</FONT></P>

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<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;A
prospectus supplement may omit, modify or add to the foregoing events of default. </FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;A
default under clause&nbsp;(3) above will not constitute an event of default with respect to any series of debt securities until the trustee notifies the issuer or the holders of at
least 25% in aggregate principal amount of the outstanding debt securities of that series notify the issuer and the trustee of the default and such issuer does not cure such default within the time
specified in clause&nbsp;(3) above after receipt of such notice. </FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;If
any event of default (other than an event of default relating to certain events of bankruptcy, insolvency or reorganization with respect to the issuer) occurs and is continuing with
respect to a particular series of debt securities, either the trustee or the holders of at least 25% in aggregate principal amount of the outstanding debt securities of that series by notice to the
issuer (and to the trustee if such notice is given by the holders) may declare the principal amount of (or in the case of original issue discount debt securities, the portion thereby specified in the
terms thereof) and accrued and unpaid interest on all the debt securities of that series to be immediately due and payable. In the case of certain events of bankruptcy, insolvency or reorganization
with respect to the issuer, the principal amount of (or, in the case of original issue discount debt securities, the portion thereby specified in the terms thereof) and accrued interest on all the
debt securities of that series shall automatically become and be immediately due and payable without any declaration or other act on the part of the trustee or any holders. </FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The
holders of a majority in aggregate principal amount of the debt securities of any series then outstanding may by notice to the trustee under the indenture waive any existing default
or event of default and its consequences under the indenture with respect to such series of debt securities except (i)&nbsp;a default in the payment of the principal of (or, in the case of original
issue discount debt securities of that series, the portion thereby specified in the terms thereof), premium, if any, and accrued and unpaid interest on the debt securities of such series,
(ii)&nbsp;a default arising from the failure to redeem or purchase any debt security of that series when required pursuant to the terms of the indenture or (iii)&nbsp;a default in respect of a
provision that cannot be amended under the indenture without the consent of each holder of the series affected. </FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Subject
to the provisions of the indenture relating to the duties of the trustee, in case an event of default shall occur and be continuing, the trustee is under no obligation to
exercise any of its rights or powers under the indenture or debt securities at the request or direction of any of the holders of any series of debt securities, unless such holders have offered to the
trustee indemnity or security satisfactory to it against any loss, liability or expense. Subject to such provisions for the indemnification of the trustee, the holders of at least a majority in
aggregate principal amount of the outstanding debt securities of any series have the right to direct the time, method and place of conducting any proceeding for any remedy available to the trustee or
exercising any trust or power conferred on the trustee with respect to such series of debt securities. The trustee, however, may refuse to follow any direction that conflicts with law or the
indenture, that the trustee determines is unduly prejudicial to the rights of any other holder of such series of debt securities or that would subject the trustee to personal liability. Prior to
taking any action under the indenture, the trustee is entitled to indemnification satisfactory to it in its sole discretion against all losses and expenses caused by taking or not taking such action. </FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Except
to enforce the right to receive payment of principal (or, in the case of original issue discount debt securities, the portion thereby specified in the terms thereof), premium, if
any, and accrued and unpaid interest on the debt securities of any series when due, no holder of debt securities of that series has any right to pursue any remedy with respect to the indenture or debt
securities unless:</FONT></P>

<UL>
<DL compact>
<DT style='font-family:times;margin-bottom:-11pt;'><FONT SIZE=2>&#149;</FONT></DT><DD style="font-family:times;"><FONT SIZE=2> such holder has previously given to the trustee written notice of a continuing event of default with respect to such series of debt securities; </FONT></DD></DL>
</UL>
<P ALIGN="CENTER" style="font-family:times;"><FONT SIZE=2>17</FONT></P>

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<UL>
<DL compact>
<DT style='font-family:times;margin-bottom:-11pt;'><FONT SIZE=2>&#149;</FONT></DT><DD style="font-family:times;"><FONT SIZE=2> the holders of at least 25% in aggregate principal amount of the outstanding debt securities of that series have made a written request to the
trustee to pursue such remedy; </FONT><FONT SIZE=2>
<BR><BR></FONT></DD><DT style='font-family:times;margin-bottom:-11pt;'><FONT SIZE=2>&#149;</FONT></DT><DD style="font-family:times;"><FONT SIZE=2> such holder or holders have offered to the trustee security or indemnity satisfactory to the trustee against any loss, liability or expense; </FONT> <FONT SIZE=2>
<BR><BR></FONT></DD><DT style='font-family:times;margin-bottom:-11pt;'><FONT SIZE=2>&#149;</FONT></DT><DD style="font-family:times;"><FONT SIZE=2> the trustee has not complied with the request within 60&nbsp;days after receipt of the request and the offer of security or indemnity; and </FONT> <FONT SIZE=2>
<BR><BR></FONT></DD><DT style='font-family:times;margin-bottom:-11pt;'><FONT SIZE=2>&#149;</FONT></DT><DD style="font-family:times;"><FONT SIZE=2> the holders of a majority in aggregate principal amount of the outstanding debt securities of that series do not give the trustee a direction
inconsistent with the request during such 60-day period. </FONT></DD></DL>
</UL>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;However,
such limitations do not apply to a suit instituted by a holder of a debt security of such series for the enforcement of payment of the principal (or, in the case of original
issue discount debt securities, the portion thereby specified in the term thereof), premium, if any, or accrued and unpaid interest on such debt security on or after the applicable due date specified
in such debt security. </FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The
indenture provides that if a default with respect to debt securities of any series occurs and is continuing and if it is actually known to a trust officer of the trustee, the trustee
must mail to each holder of that series notice of the default within 90&nbsp;days after it occurs. Except in the case of a default
in the payment of principal of (or, in the case of original issue discount debt securities of that series, the portion thereby specified in the terms thereof), premium, if any, and accrued and unpaid
interest on any debt security of that series when such amount becomes due and payable, the trustee may withhold notice if and so long as a committee of its trust officers in good faith determines that
withholding notice is in the interests of the holders. </FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The
indenture requires the issuer with respect to an outstanding series of debt securities to furnish to the trustee, within 120&nbsp;days after the end of each fiscal year, an
officer's certificate as defined in the indenture, as to whether or not such officers know of any default with respect to such series of debt securities that occurred during such period and, if so,
describing the default, its status and what action the issuer is taking or proposes to take with respect thereto. </FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Street
name and other indirect holders should consult their banks and brokers for information on their requirements for giving notice or taking other actions upon a default. </FONT></P>

<P style="font-family:times;;margin-left:10.0pt;text-indent:-10.0pt;"><FONT SIZE=2><B>


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Modification and Waiver  </B></FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Modifications and amendments of the indenture as it applies to any series of debt securities or any of the other terms of such series may be
made by the applicable issuer, any applicable guarantor and the trustee with the consent of the holders of at least a majority in aggregate principal amount of the outstanding debt securities of such
series. </FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;No
such modification or amendment may, without the consent of each holder of an affected debt security:</FONT></P>

<UL>
<DL compact>
<DT style='font-family:times;margin-bottom:-11pt;'><FONT SIZE=2>&#149;</FONT></DT><DD style="font-family:times;"><FONT SIZE=2> make any change to the percentage of principal amount of the outstanding debt securities of the applicable series the holders of which must
consent to an amendment; </FONT><FONT SIZE=2>
<BR><BR></FONT></DD><DT style='font-family:times;margin-bottom:-11pt;'><FONT SIZE=2>&#149;</FONT></DT><DD style="font-family:times;"><FONT SIZE=2> reduce the principal amount of, premium, if any, or interest on, or extend the stated maturity or interest payment periods, of such debt
security; </FONT><FONT SIZE=2>
<BR><BR></FONT></DD><DT style='font-family:times;margin-bottom:-11pt;'><FONT SIZE=2>&#149;</FONT></DT><DD style="font-family:times;"><FONT SIZE=2> make such debt security payable in money or securities other than that stated in such debt security; </FONT> <FONT SIZE=2>
<BR><BR></FONT></DD><DT style='font-family:times;margin-bottom:-11pt;'><FONT SIZE=2>&#149;</FONT></DT><DD style="font-family:times;"><FONT SIZE=2> make any change that adversely affects such holder's right to require the applicable issuer to purchase such debt security in accordance with
the terms thereof and under the indenture; </FONT></DD></DL>
</UL>
<P ALIGN="CENTER" style="font-family:times;"><FONT SIZE=2>18</FONT></P>

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<UL>
<DL compact>
<DT style='font-family:times;margin-bottom:-11pt;'><FONT SIZE=2>&#149;</FONT></DT><DD style="font-family:times;"><FONT SIZE=2> impair the right of such holder to institute suit for the enforcement of any payment with respect to such debt securities; </FONT> <FONT SIZE=2>
<BR><BR></FONT></DD><DT style='font-family:times;margin-bottom:-11pt;'><FONT SIZE=2>&#149;</FONT></DT><DD style="font-family:times;"><FONT SIZE=2> in the case of any subordinated debt security or coupons appertaining thereto, make any change in the provisions of the indenture relating to
subordination that adversely affects the rights of such holder under such provisions; </FONT><FONT SIZE=2>
<BR><BR></FONT></DD><DT style='font-family:times;margin-bottom:-11pt;'><FONT SIZE=2>&#149;</FONT></DT><DD style="font-family:times;"><FONT SIZE=2> except as provided under "&#151;Satisfaction and Discharge of the Indenture; Defeasance" below or in accordance with a guarantee,
release any guarantor of such debt securities from any of its obligations under the guarantee or make any changes in the applicable guarantee that would adversely affect such holder; or </FONT> <FONT SIZE=2>
<BR><BR></FONT></DD><DT style='font-family:times;margin-bottom:-11pt;'><FONT SIZE=2>&#149;</FONT></DT><DD style="font-family:times;"><FONT SIZE=2> change the requirements relating to waiving a default in payment of principal of, premium, if any, or interest on the debt securities of a
series, the right to bring suit to enforce such payments or the provisions relating to modifications or amendments described in this sentence. </FONT></DD></DL>
</UL>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Without
notice to or consent of any holder, the applicable issuer and guarantor with respect to a series of debt securities and the trustee may amend the indenture as it applies to such
series or any of the other terms of such series for one or more of the following purposes:</FONT></P>

<UL>
<DL compact>
<DT style='font-family:times;margin-bottom:-11pt;'><FONT SIZE=2>&#149;</FONT></DT><DD style="font-family:times;"><FONT SIZE=2> to evidence the succession of another person to such issuer pursuant to the provisions of the indenture relating to consolidations, mergers and
sales of assets and the assumption by such successor of such issuer's covenants, agreements and obligations in the indenture and with respect to the debt securities; </FONT> <FONT SIZE=2>
<BR><BR></FONT></DD><DT style='font-family:times;margin-bottom:-11pt;'><FONT SIZE=2>&#149;</FONT></DT><DD style="font-family:times;"><FONT SIZE=2> to surrender any right or power conferred upon such issuer, to add to the covenants such further covenants, restrictions, conditions or
provisions for the protection of the holders of such series of debt securities, and to make the occurrence, or the occurrence and continuance, of a default in respect of any of such additional
covenants, restrictions, conditions or provisions a default or an event of default under the indenture with respect to such series; provided, however, that with respect to any such additional
covenant, restriction, condition or provision, such supplemental indenture may provide for a period of grace after default, which may be shorter or longer than that allowed in the case of other
defaults, may provide for an immediate enforcement upon such default, may limit the remedies available to the trustee upon such default or may limit the right of holders of a majority in aggregate
principal amount of any series of debt securities to waive such default; </FONT><FONT SIZE=2>
<BR><BR></FONT></DD><DT style='font-family:times;margin-bottom:-11pt;'><FONT SIZE=2>&#149;</FONT></DT><DD style="font-family:times;"><FONT SIZE=2> to cure any ambiguity or correct or supplement any provision contained in the indenture, in any supplemental indenture, board resolution or
officers' certificate or in any debt securities that may be defective or inconsistent with any other provision contained therein; </FONT><FONT SIZE=2>
<BR><BR></FONT></DD><DT style='font-family:times;margin-bottom:-11pt;'><FONT SIZE=2>&#149;</FONT></DT><DD style="font-family:times;"><FONT SIZE=2> to convey, transfer, assign, mortgage or pledge any property to or with the trustee, or to make such other provisions in regard to matters or
questions arising under the indenture as shall not adversely affect the interests of any holders of debt securities of such series; </FONT><FONT SIZE=2>
<BR><BR></FONT></DD><DT style='font-family:times;margin-bottom:-11pt;'><FONT SIZE=2>&#149;</FONT></DT><DD style="font-family:times;"><FONT SIZE=2> to modify or amend the indenture in such a manner as to permit the qualification of the indenture or any supplemental indenture under the Trust
Indenture Act as then in effect; </FONT><FONT SIZE=2>
<BR><BR></FONT></DD><DT style='font-family:times;margin-bottom:-11pt;'><FONT SIZE=2>&#149;</FONT></DT><DD style="font-family:times;"><FONT SIZE=2> to add to or change any of the provisions of the indenture to provide that debt securities in bearer form may be registrable as to principal,
to change or eliminate any restrictions on the payment of principal, premium or interest with respect to debt securities in bearer form, to permit securities in registered form to be exchanged for
securities in bearer form or to permit or facilitate the issuance of debt securities of such series in uncertificated form, provided that any such action shall not adversely affect the interests of
the holders of debt securities or any coupons of any series in any material respect; </FONT></DD></DL>
</UL>
<P ALIGN="CENTER" style="font-family:times;"><FONT SIZE=2>19</FONT></P>

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<UL>
<DL compact>
<DT style='font-family:times;margin-bottom:-11pt;'><FONT SIZE=2>&#149;</FONT></DT><DD style="font-family:times;"><FONT SIZE=2> in the case of subordinated debt securities, to make any change in the provisions of the indenture or any supplemental indenture, board
resolution or officers' certificate relating to subordination that would limit or terminate the benefits available to any holder of senior indebtedness under such provisions, subject to any consent
required under the terms of such senior indebtedness; </FONT><FONT SIZE=2>
<BR><BR></FONT></DD><DT style='font-family:times;margin-bottom:-11pt;'><FONT SIZE=2>&#149;</FONT></DT><DD style="font-family:times;"><FONT SIZE=2> to add guarantees with respect to the debt securities or to secure the debt securities; </FONT><FONT SIZE=2>
<BR><BR></FONT></DD><DT style='font-family:times;margin-bottom:-11pt;'><FONT SIZE=2>&#149;</FONT></DT><DD style="font-family:times;"><FONT SIZE=2> to make any change that does not adversely affect the rights of any holder of debt securities of such series; </FONT> <FONT SIZE=2>
<BR><BR></FONT></DD><DT style='font-family:times;margin-bottom:-11pt;'><FONT SIZE=2>&#149;</FONT></DT><DD style="font-family:times;"><FONT SIZE=2> to evidence and provide for the acceptance of appointment by a successor or separate trustee with respect to the debt securities of one or more
series and to add to or change any of the provisions of the indenture as shall be necessary to provide for or facilitate the administration of the indenture by more than one trustee; or </FONT> <FONT SIZE=2>
<BR><BR></FONT></DD><DT style='font-family:times;margin-bottom:-11pt;'><FONT SIZE=2>&#149;</FONT></DT><DD style="font-family:times;"><FONT SIZE=2> to establish the form or terms of debt securities and coupons of any series, as described under "&#151;General" above. </FONT></DD></DL>
</UL>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;UAL,
United and the trustee may amend the indenture without notice to or consent of any holder to add to, change, or eliminate any of the provisions of the indenture, so long as any such
addition, change or elimination not otherwise permitted under the indenture shall (a)&nbsp;neither apply to any debt security of any series outstanding at the time of the execution of such
supplemental indenture and entitled to the benefit of such provision nor modify the rights of the holders of any such debt security with respect to such provision or (b)&nbsp;become effective only
when there is no such debt security outstanding. </FONT></P>

<P style="font-family:times;;margin-left:10.0pt;text-indent:-10.0pt;"><FONT SIZE=2><B>


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Mergers and Sales of Assets  </B></FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The indenture provides that the issuer with respect to any outstanding series of debt securities may not consolidate with or merge into any
other person or convey, transfer or lease all or substantially all of its properties and assets to another person, unless among other items: (a)&nbsp;the resulting, surviving or transferee person is
a corporation organized and existing under the laws of the United States, any state thereof or the District of Columbia and such person (if not such issuer) expressly assumes, by supplemental
indenture, all obligations of such issuer under the applicable debt securities and the indenture; (b)&nbsp;no event of default with respect to any series of debt securities of such issuer issued
under the indenture shall have occurred and be continuing; and (c)&nbsp;such issuer shall have provided the trustee with an officers' certificate and an opinion of counsel confirming compliance with
the indenture with respect to such transaction. Upon the assumption of the issuer's obligations by such a person in such circumstances, subject to certain exceptions, such issuer shall be discharged
from all obligations under the indenture. </FONT></P>

<P style="font-family:times;;margin-left:10.0pt;text-indent:-10.0pt;"><FONT SIZE=2><B>


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Satisfaction and Discharge of the Indenture; Defeasance  </B></FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Unless otherwise provided for in the prospectus supplement, the indenture shall cease to be of any further effect with respect to any series of
debt securities if (1)&nbsp;either (a)&nbsp;the issuer has delivered to the trustee for cancellation all debt securities of such series (with certain limited exceptions) or (b)&nbsp;all debt
securities and coupons of such series not theretofore delivered to the trustee for cancellation shall have become due and payable, are by their terms to become due and payable at their stated maturity
within one year or are to be called for redemption within one year under arrangements satisfactory to the trustee for the giving of notice of redemption by the trustee in the name, and at the expense,
of the issuer; and (2)&nbsp;the issuer shall have deposited with the trustee as trust funds an amount sufficient to pay and discharge the entire indebtedness on such debt securities not theretofore
delivered to the trustee for cancellation, for principal (and premium, if any) and interest, if any, to the date of such </FONT></P>

<P ALIGN="CENTER" style="font-family:times;"><FONT SIZE=2>20</FONT></P>

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<P style="font-family:times;"><FONT SIZE=2>deposit
(in the case of debt securities which have become due and payable) or to the stated maturity or redemption date, as the case may be. </FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;In
addition, the issuer shall have a "legal defeasance option" (pursuant to which the issuer may terminate, with respect to the debt securities of a particular series, all of its
obligations under such debt securities and the indenture with respect to such debt securities) and a "covenant defeasance option" (pursuant to which the issuer may terminate, with respect to the debt
securities of a particular series, its obligations with respect to such debt securities under certain specified covenants with respect to such debt securities). If the legal defeasance option is
exercised with respect to a series of debt securities, payment of such debt securities may not be accelerated because of an event of default. If the covenant defeasance option is exercised with
respect to a series of debt securities, payment of such debt securities may not be accelerated because of an event of default related to the specified covenants. </FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The
applicable prospectus supplement will describe the procedures the issuer must follow in order to exercise its defeasance options. </FONT></P>

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Regarding the Trustee  </B></FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The indenture provides that, except during the continuance of an event of default, the trustee will perform only such duties as are specifically
set forth in the indenture. During the existence of an event of default, the trustee will exercise such rights and powers vested in it under the indenture and use the same degree of care and skill in
its exercise as a prudent person would exercise or use under the circumstances in the conduct of such person's own affairs. </FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The
indenture and provisions of the Trust Indenture Act that are incorporated by reference therein contain limitations on the rights of the trustee, should it become one of an issuer's
creditors, to obtain payment of claims in certain cases or to realize on certain property received by it in respect of any such claim as security or otherwise. The trustee is permitted to engage in
other transactions with any issuer or any of its affiliates; provided, however, that if it acquires any conflicting interest (as defined in the indenture or in the Trust Indenture Act), it must
eliminate such conflict or resign. </FONT></P>

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Governing Law  </B></FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The indenture is, and the debt securities will be, governed by the laws of the State of New York. </FONT></P>

<P ALIGN="CENTER" style="font-family:times;"><FONT SIZE=2>21</FONT></P>

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<P ALIGN="CENTER" style="font-family:times;"><FONT SIZE=2><A NAME="dg15402_description_of_depositary_shares"> </A>
<A NAME="toc_dg15402_1"> </A>
<BR></FONT><FONT SIZE=2><B>  DESCRIPTION OF DEPOSITARY SHARES    <BR>    </B></FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</FONT><FONT SIZE=2><I>The following summary of certain provisions of the depositary shares does not purport to be complete and is subject to,
and qualified in its entirety by reference to, the provisions of the deposit agreement that will be filed with the SEC in connection with the offering of such depositary
shares.</I></FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;UAL
may offer fractional shares of Preferred Stock, rather than full shares of Preferred Stock. If UAL decides to offer fractional shares of Preferred Stock, it will issue receipts for
depositary shares. Each depositary share will represent a fraction of a share of a particular series of Preferred Stock, and the prospectus supplement will indicate that fraction. The shares of
Preferred Stock represented by depositary shares will be deposited under a deposit agreement between UAL and a depositary that is a bank or trust company that meets certain requirements and is
selected by UAL. The depositary will be specified in the applicable prospectus supplement. Each owner of a depositary share will be entitled to all of the rights and preferences of the Preferred Stock
represented by the depositary share. The depositary shares will be evidenced by depositary receipts issued pursuant to the deposit agreement.
Depositary receipts will be distributed to those persons purchasing the fractional shares of Preferred Stock in accordance with the terms of the offering. </FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;We
have summarized selected provisions of the deposit agreement and the depositary receipts, but the summary is qualified by reference to the provisions of the deposit agreement and the
depositary receipts. The particular terms of any series of depositary shares will be described in the applicable prospectus supplement. If so indicated in the prospectus supplement, the terms of any
such series may differ from the terms set forth below. </FONT></P>


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Dividends  </B></FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The depositary will distribute all cash dividends or other cash distributions received by it in respect of the Preferred Stock to the record
holders of depositary shares relating to such preferred shares in proportion to the numbers of depositary shares held on the relevant record date. The amount made available for distribution will be
reduced by any amounts withheld by the depositary or UAL on account of taxes. </FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;In
the event of a distribution other than in cash, the depositary will distribute securities or property received by it to the record holders of depositary shares in proportion to the
numbers of depositary shares held on the relevant record date, unless the depositary determines that it is not feasible to make such distribution. In that case, the depositary may make the
distribution by such method as it deems equitable and practicable. One such possible method is for the depositary to sell the securities or property and then distribute the net proceeds from the sale
as provided in the case of a cash distribution. </FONT></P>

<P style="font-family:times;;margin-left:10.0pt;text-indent:-10.0pt;"><FONT SIZE=2><B>


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Withdrawal of Shares  </B></FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Upon surrender of depositary receipts representing any number of whole shares at the depositary's office, unless the related depositary shares
previously have been called for redemption, the holder of the depositary shares evidenced by the depositary receipts will be entitled to delivery of the number of whole shares of the related series of
Preferred Stock and all money and other property, if any, underlying such depositary shares. However, once such an exchange is made, the Preferred Stock cannot thereafter be redeposited in exchange
for depositary shares. Holders of depositary shares will be entitled to receive whole shares of the related series of Preferred Stock on the basis set forth in the applicable prospectus supplement. If
the depositary receipts delivered by the holder evidence a number of depositary shares representing more than the number of whole shares of Preferred Stock of the related series to be withdrawn, the
depositary will deliver to the holder at the
same time a new depositary receipt evidencing the excess number of depositary shares, provided that the depositary will not issue any receipt evidencing a fractional depositary share. </FONT></P>

<P ALIGN="CENTER" style="font-family:times;"><FONT SIZE=2>22</FONT></P>

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Redemption of Depositary Shares  </B></FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Whenever UAL redeems the Preferred Stock, the depositary will redeem a number of depositary shares representing the same number of shares of
Preferred Stock so redeemed. If fewer than all of the depositary shares are to be redeemed, the depositary shares to be redeemed will be selected by lot, pro rata or by any other equitable method as
the depositary may determine. </FONT></P>

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Voting of Underlying Shares  </B></FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Upon receipt of notice of any meeting at which the holders of the Preferred Stock of any series are entitled to vote, the depositary will mail
the information contained in the notice of the meeting to the record holders of the depositary shares relating to that series of preferred shares. Each record holder of the depositary shares on the
record date will be entitled to instruct the depositary as to the exercise of the voting rights represented by the number of shares of Preferred Stock underlying the holder's depositary shares. The
depositary will endeavor, to the extent it is practical to do so, to vote the number of whole shares of Preferred Stock underlying such depositary shares in accordance with such instructions. UAL will
agree to take all reasonable actions that the depositary may deem necessary in order to enable the depositary to do so. To the extent the depositary does not receive specific instructions from the
holders of depositary shares relating to such preferred shares, it will abstain from voting such shares of Preferred Stock. </FONT></P>

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Amendment and Termination of Deposit Agreement  </B></FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The form of depositary receipt evidencing the depositary shares and any provision of the applicable deposit agreement may at any time be amended
by agreement between UAL and the depositary. With the consent of the depositary, UAL may amend the deposit agreement from time to time in any manner that it desires. However, if the amendment would
materially and adversely alter the rights of the existing holders of depositary shares, the amendment would need to be approved by the holders of at least a majority of the depositary shares then
outstanding. </FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The
deposit agreement may be terminated by UAL or the depositary if:</FONT></P>

<UL>
<DL compact>
<DT style='font-family:times;margin-bottom:-11pt;'><FONT SIZE=2>&#149;</FONT></DT><DD style="font-family:times;"><FONT SIZE=2> all outstanding depositary shares have been redeemed; or </FONT><FONT SIZE=2>
<BR><BR></FONT></DD><DT style='font-family:times;margin-bottom:-11pt;'><FONT SIZE=2>&#149;</FONT></DT><DD style="font-family:times;"><FONT SIZE=2> there has been a final distribution in respect of the shares of Preferred Stock of the applicable series in connection with our liquidation,
dissolution or winding up and such distribution has been made to the holders of depositary receipts. </FONT></DD></DL>
</UL>

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Resignation and Removal of Depositary  </B></FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The depositary may resign at any time by delivering to UAL notice of its election to do so. UAL may remove a depositary at any time. Any
resignation or removal will take effect upon the appointment of a successor depositary and its acceptance of such appointment. </FONT></P>

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Charges of Depositary  </B></FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;UAL will pay all transfer and other taxes and governmental charges arising solely from the existence of any depositary arrangements. UAL will
pay all charges of each depositary in connection with the initial deposit of the preferred shares of any series, the initial issuance of the depositary shares, any redemption or exchange of such
preferred shares and any withdrawals of such preferred shares by holders of depositary shares. Holders of depositary shares will be required to pay any other transfer taxes and governmental charges. </FONT></P>

<P ALIGN="CENTER" style="font-family:times;"><FONT SIZE=2>23</FONT></P>

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Notices  </B></FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Each depositary will forward to the holders of the applicable depositary shares all notices, reports and communications from UAL which are
delivered to such depositary and which UAL is required to furnish the holders of the preferred shares. </FONT></P>

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Limitation of Liability  </B></FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The deposit agreement contains provisions that limit UAL's liability and the liability of the depositary to the holders of
depositary shares. Both the depositary and UAL are also entitled to an indemnity from the holders of the depositary shares prior to bringing, or defending against, any legal proceeding pertaining to
the rights of the holders of the depositary shares. UAL or any depositary may rely upon written advice of counsel or accountants, or information provided by persons presenting preferred shares for
deposit, holders of depositary shares or other persons believed by UAL or it to be competent and on documents believed by UAL or them to be genuine. </FONT></P>

<P ALIGN="CENTER" style="font-family:times;"><FONT SIZE=2>24</FONT></P>

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<P ALIGN="CENTER" style="font-family:times;"><FONT SIZE=2><A NAME="dg15402_description_of_stock_purchase___des02662"> </A>
<A NAME="toc_dg15402_2"> </A>
<BR></FONT><FONT SIZE=2><B>  DESCRIPTION OF STOCK PURCHASE CONTRACTS AND STOCK PURCHASE UNITS    <BR>    </B></FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</FONT><FONT SIZE=2><I>The following summary of certain provisions of the stock purchase contracts and stock purchase units does not purport to
be complete and is subject to, and qualified in its entirety by reference to, the provisions of the stock purchase contract or stock purchase unit, as applicable, that will be filed with the SEC in
connection with the offering of such securities.</I></FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;UAL
may issue stock purchase contracts, including contracts obligating holders to purchase from it, and obligating UAL to sell to the holders, a specified number of shares of UAL Common
Stock or Preferred Stock at a future date or dates, which we refer to in this prospectus as "stock purchase contracts." The price per share of the UAL Common Stock or Preferred Stock and the number of
shares of UAL Common Stock or Preferred Stock may be fixed at the time the stock purchase contracts are issued or may be determined by reference to a specific formula set forth in the stock purchase
contracts. The stock purchase contracts may be issued separately or as part of units consisting of a stock purchase contract and our debt securities, Preferred Stock or warrants or debt obligations of
third parties, including U.S. treasury securities, securing the holders' obligations to purchase shares of UAL Common Stock or Preferred Stock under the stock purchase contracts, which we refer to
herein as "stock purchase units." The stock purchase contracts may require holders to secure their obligations under the stock purchase contracts in a specified manner and, in certain circumstances,
we may deliver newly issued prepaid stock purchase contracts upon release to a holder of any collateral securing such holder's obligations under the original stock purchase contract. The stock
purchase contracts also may require us to make periodic payments to the holders of the stock purchase units or vice versa, and those payments may be unsecured or refunded on some basis. </FONT></P>


<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The
applicable prospectus supplement will describe the terms of the stock purchase contracts or stock purchase units and, if applicable, prepaid stock purchase contracts. The description
in the prospectus supplement will not necessarily be complete, and reference will be made to the stock purchase contracts, and, if applicable, collateral or depositary arrangements, relating to the
stock purchase contracts or stock purchase units, which will be filed with the SEC each time UAL issues stock purchase contracts or stock purchase units. Material United States federal income tax
considerations applicable to the stock purchase units and the stock purchase contracts will also be discussed in the applicable prospectus supplement. </FONT></P>

<P ALIGN="CENTER" style="font-family:times;"><FONT SIZE=2>25</FONT></P>

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<P ALIGN="CENTER" style="font-family:times;"><FONT SIZE=2><A NAME="dg15402_description_of_subscription_rights"> </A>
<A NAME="toc_dg15402_3"> </A>
<BR></FONT><FONT SIZE=2><B>  DESCRIPTION OF SUBSCRIPTION RIGHTS    <BR>    </B></FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</FONT><FONT SIZE=2><I>The following summary of certain provisions of the subscription rights does not purport to be complete and is subject
to, and qualified in its entirety by reference to, the provisions of the certificate evidencing the subscription rights that will be filed with the SEC in connection with the offering of such
subscription rights.</I></FONT></P>

<P style="font-family:times;;margin-left:10.0pt;text-indent:-10.0pt;"><FONT SIZE=2><B>


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General  </B></FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;UAL may issue subscription rights to purchase shares of UAL Common Stock, Preferred Stock, depositary shares or warrants to purchase shares of
UAL Common Stock, Preferred Stock or depositary shares. Subscription rights may be issued independently or together with any other offered security and may or may not be transferable by the person
purchasing or receiving the subscription rights. In connection with any subscription rights offering to UAL's stockholders, UAL may enter into a standby underwriting arrangement with
one or more underwriters pursuant to which such underwriters will purchase any offered securities remaining unsubscribed for after such subscription rights offering. In connection with a subscription
rights offering to UAL's stockholders, UAL will distribute certificates evidencing the subscription rights and a prospectus supplement to its stockholders on the record date that UAL
sets for receiving subscription rights in such subscription rights offering. </FONT></P>


<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The
applicable prospectus supplement will describe the following terms of subscription rights in respect of which this prospectus is being
delivered:</FONT></P>

<UL>
<DL compact>
<DT style='font-family:times;margin-bottom:-11pt;'><FONT SIZE=2>&#149;</FONT></DT><DD style="font-family:times;"><FONT SIZE=2> the title of such subscription rights; </FONT><FONT SIZE=2>
<BR><BR></FONT></DD><DT style='font-family:times;margin-bottom:-11pt;'><FONT SIZE=2>&#149;</FONT></DT><DD style="font-family:times;"><FONT SIZE=2> the securities for which such subscription rights are exercisable; </FONT><FONT SIZE=2>
<BR><BR></FONT></DD><DT style='font-family:times;margin-bottom:-11pt;'><FONT SIZE=2>&#149;</FONT></DT><DD style="font-family:times;"><FONT SIZE=2> the exercise price for such subscription rights; </FONT><FONT SIZE=2>
<BR><BR></FONT></DD><DT style='font-family:times;margin-bottom:-11pt;'><FONT SIZE=2>&#149;</FONT></DT><DD style="font-family:times;"><FONT SIZE=2> the number of such subscription rights issued to each stockholder; </FONT><FONT SIZE=2>
<BR><BR></FONT></DD><DT style='font-family:times;margin-bottom:-11pt;'><FONT SIZE=2>&#149;</FONT></DT><DD style="font-family:times;"><FONT SIZE=2> the extent to which such subscription rights are transferable; </FONT><FONT SIZE=2>
<BR><BR></FONT></DD><DT style='font-family:times;margin-bottom:-11pt;'><FONT SIZE=2>&#149;</FONT></DT><DD style="font-family:times;"><FONT SIZE=2> the date on which the right to exercise such subscription rights shall commence, and the date on which such rights shall expire (subject to any
extension); </FONT><FONT SIZE=2>
<BR><BR></FONT></DD><DT style='font-family:times;margin-bottom:-11pt;'><FONT SIZE=2>&#149;</FONT></DT><DD style="font-family:times;"><FONT SIZE=2> the extent to which such subscription rights include an over-subscription privilege with respect to unsubscribed securities; </FONT> <FONT SIZE=2>
<BR><BR></FONT></DD><DT style='font-family:times;margin-bottom:-11pt;'><FONT SIZE=2>&#149;</FONT></DT><DD style="font-family:times;"><FONT SIZE=2> if applicable, the material terms of any standby underwriting or other purchase arrangement that we may enter into in connection with the
subscription rights offering; and </FONT><FONT SIZE=2>
<BR><BR></FONT></DD><DT style='font-family:times;margin-bottom:-11pt;'><FONT SIZE=2>&#149;</FONT></DT><DD style="font-family:times;"><FONT SIZE=2> any other terms of such subscription rights, including terms, procedures and limitations relating to the exchange and exercise of such
subscription rights. </FONT></DD></DL>
</UL>

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Exercise of Subscription Rights  </B></FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Each subscription right will entitle the holder of the subscription right to purchase for cash such amount of shares of UAL Common Stock,
Preferred Stock, depositary shares, warrants or any combination thereof, at such exercise price as shall in each case be set forth in, or be determinable as set forth in, the prospectus supplement
relating to the subscription rights offered thereby. Subscription rights may be exercised at any time up to the close of business on the expiration date for such subscription rights set forth in the
prospectus supplement. After the close of business on the expiration date, all unexercised subscription rights will become void. </FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Subscription
rights may be exercised as set forth in the prospectus supplement relating to the subscription rights offered thereby. Upon receipt of payment and the subscription rights
certificate properly completed and duly executed at the corporate trust office of the subscription rights agent or any other office indicated in the prospectus supplement, UAL will forward, as soon as
practicable, the shares of UAL Common Stock, Preferred Stock, depositary shares or warrants purchasable upon such exercise. UAL may determine to offer any unsubscribed offered securities directly to
persons other than stockholders, to or through agents, underwriters or dealers or through a combination of such methods, including pursuant to standby underwriting arrangements, as set forth in the
applicable prospectus supplement. </FONT></P>

<P ALIGN="CENTER" style="font-family:times;"><FONT SIZE=2>26</FONT></P>

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<P style="font-family:times;"><FONT SIZE=2><A HREF="#bg15402a_main_toc">Table of Contents</A></FONT></P>

<P ALIGN="CENTER" style="font-family:times;"><FONT SIZE=2><A NAME="dg15402_description_of_warrants"> </A>
<A NAME="toc_dg15402_4"> </A>
<BR></FONT><FONT SIZE=2><B>  DESCRIPTION OF WARRANTS    <BR>    </B></FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</FONT><FONT SIZE=2><I>The following summary of certain provisions of the warrants does not purport to be complete and is subject to, and
qualified in its entirety by reference to, the provisions of the warrant agreement that will be filed with the SEC in connection with the offering of such warrants.</I></FONT></P>


<P style="font-family:times;;margin-left:10.0pt;text-indent:-10.0pt;"><FONT SIZE=2><B>


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General  </B></FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;UAL may issue warrants for the purchase of debt securities, UAL Common Stock or Preferred Stock. Warrants may be issued independently or
together with debt securities, UAL Common Stock or Preferred Stock offered by any prospectus supplement and may be attached to or separate from any such offered securities. Each series of warrants
will be issued under a separate warrant agreement to be entered into between UAL and a bank or trust company, as warrant agent. The warrant agent will act solely as UAL's agent in
connection with the warrants and will not assume any obligation or relationship of agency or trust for or with any holders or beneficial owners of warrants. </FONT></P>

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Debt Warrants  </B></FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The prospectus supplement relating to a particular issue of debt warrants will describe the terms of such debt warrants, including the
following: (a)&nbsp;the title of such debt warrants; (b)&nbsp;the offering price for such debt warrants, if any; (c)&nbsp;the aggregate number of such debt warrants; (d)&nbsp;the designation
and terms of the debt securities purchasable upon exercise of such debt warrants; (e)&nbsp;if applicable, the designation and terms of the debt securities with which such debt warrants are issued
and the number of such debt warrants issued with each such debt security; (f)&nbsp;if applicable, the date from and after which such debt warrants and any debt securities issued therewith will be
separately transferable; (g)&nbsp;the principal amount of debt securities purchasable upon exercise of a debt warrant and the price at which such principal amount of debt securities may be purchased
upon exercise (which price may be payable in cash, securities, or other property); (h)&nbsp;the date on which the right to exercise such debt warrants shall commence and the date on which such right
shall expire; (i)&nbsp;if applicable, the minimum or maximum amount of such debt warrants that may be exercised at any one time; (j)&nbsp;whether the debt warrants represented by the debt warrant
certificates or debt securities that may be issued upon exercise of the debt warrants will be issued in registered or bearer form; (k)&nbsp;information with respect to book-entry procedures, if any;
(l)&nbsp;the currency or currency units in which the offering price, if any, and the exercise price are payable; (m)&nbsp;the anti-dilution provisions of such debt warrants, if any; (n)&nbsp;the
redemption or call provisions, if any, applicable to such debt warrants; and (o)&nbsp;any additional terms of such debt warrants, including terms, procedures and limitations relating to the exchange
and exercise of such debt warrants. </FONT></P>

<P style="font-family:times;;margin-left:10.0pt;text-indent:-10.0pt;"><FONT SIZE=2><B>


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Stock Warrants  </B></FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The prospectus supplement relating to any particular issue of UAL Common Stock warrants or Preferred Stock warrants will describe the terms of
such warrants, including the following: (a)&nbsp;the title of such warrants; (b)&nbsp;the offering price for such warrants, if any; (c)&nbsp;the aggregate number of such warrants; (d)&nbsp;the
designation and terms of the UAL Common Stock or Preferred Stock purchasable upon exercise of such warrants; (e)&nbsp;if applicable, the designation and terms of the offered securities with which
such warrants are issued and the number of such warrants issued with each such offered security; (f)&nbsp;if applicable, the date from and after which such warrants and any offered securities issued
therewith will be separately transferable; (g)&nbsp;the number of shares of UAL Common Stock or Preferred Stock purchasable upon exercise of a warrant and the price at which such shares may be
purchased upon exercise; (h)&nbsp;the date on which the right to exercise such warrants shall commence and the date on which such right shall expire; (i)&nbsp;if applicable, the minimum or maximum
amount of such warrants that may be exercised at any one time; (j)&nbsp;the currency or currency units in which the offering price, if any, and the exercise price are payable; (k)&nbsp;the
anti-dilution provisions of such warrants, if any; (l)&nbsp;the redemption or call provisions, if any, applicable to such warrants; and (m)&nbsp;any additional terms of such warrants, including
terms, procedures and limitations relating to the exchange and exercise of such warrants. </FONT></P>

<P ALIGN="CENTER" style="font-family:times;"><FONT SIZE=2>27</FONT></P>

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<P ALIGN="CENTER" style="font-family:times;"><FONT SIZE=2><A NAME="dg15402_plan_of_distribution"> </A>
<A NAME="toc_dg15402_5"> </A>
<BR></FONT><FONT SIZE=2><B>  PLAN OF DISTRIBUTION    <BR>    </B></FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;We and any selling security holder may offer and sell the securities covered by this prospectus from time to time, in one or more transactions,
at market prices prevailing at the time of sale, at prices related to market prices, at a fixed price or prices subject to change, at varying prices determined at the time of sale or at negotiated
prices, by a variety of methods, including the following:</FONT></P>

<UL>
<DL compact>
<DT style='font-family:times;margin-bottom:-11pt;'><FONT SIZE=2>&#149;</FONT></DT><DD style="font-family:times;"><FONT SIZE=2> through agents; </FONT><FONT SIZE=2>
<BR><BR></FONT></DD><DT style='font-family:times;margin-bottom:-11pt;'><FONT SIZE=2>&#149;</FONT></DT><DD style="font-family:times;"><FONT SIZE=2> to or through underwriters; </FONT><FONT SIZE=2>
<BR><BR></FONT></DD><DT style='font-family:times;margin-bottom:-11pt;'><FONT SIZE=2>&#149;</FONT></DT><DD style="font-family:times;"><FONT SIZE=2> through brokers or dealers; </FONT><FONT SIZE=2>
<BR><BR></FONT></DD><DT style='font-family:times;margin-bottom:-11pt;'><FONT SIZE=2>&#149;</FONT></DT><DD style="font-family:times;"><FONT SIZE=2> directly by us or any selling security holders to purchasers, including through a specific bidding, auction or other process; or </FONT> <FONT SIZE=2>
<BR><BR></FONT></DD><DT style='font-family:times;margin-bottom:-11pt;'><FONT SIZE=2>&#149;</FONT></DT><DD style="font-family:times;"><FONT SIZE=2> through a combination of any of these methods of sale. </FONT></DD></DL>
</UL>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Registration
of the securities covered by this prospectus does not mean that those securities necessarily will be offered or sold. </FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;In
effecting sales, brokers or dealers engaged by us may arrange for other brokers or dealers to participate. Broker-dealer transactions may
include:</FONT></P>

<UL>
<DL compact>
<DT style='font-family:times;margin-bottom:-11pt;'><FONT SIZE=2>&#149;</FONT></DT><DD style="font-family:times;"><FONT SIZE=2> purchases of the securities by a broker-dealer as principal and resales of the securities by the broker-dealer for its account pursuant to this
prospectus; </FONT><FONT SIZE=2>
<BR><BR></FONT></DD><DT style='font-family:times;margin-bottom:-11pt;'><FONT SIZE=2>&#149;</FONT></DT><DD style="font-family:times;"><FONT SIZE=2> ordinary brokerage transactions; or </FONT><FONT SIZE=2>
<BR><BR></FONT></DD><DT style='font-family:times;margin-bottom:-11pt;'><FONT SIZE=2>&#149;</FONT></DT><DD style="font-family:times;"><FONT SIZE=2> transactions in which the broker-dealer solicits purchasers. </FONT></DD></DL>
</UL>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;In
addition, we and any selling security holder may sell any securities covered by this prospectus in private transactions or under Rule&nbsp;144 under the Securities Act rather than
pursuant to this prospectus. </FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;In
connection with the sale of securities covered by this prospectus, broker-dealers may receive commissions or other compensation from us in the form of commissions, discounts or
concessions. Broker-dealers may also receive compensation from purchasers of the securities for whom they act as agents or to whom they sell as principals or both. Compensation as to a particular
broker-dealer may be in excess of customary commissions or in amounts to be negotiated. In connection with any underwritten offering, underwriters may receive compensation in the form of discounts,
concessions or commissions from us or from purchasers of the securities for whom they act as agents. Underwriters may sell the securities to or through dealers, and such dealers may receive
compensation in the form of discounts, concessions or commissions from the underwriters and/or commissions from the purchasers for whom they may act as agents. Any underwriters, broker-dealers, agents
or other persons acting on our behalf that participate in the distribution of the securities may be deemed to be "underwriters" within the meaning of the Securities Act, and any profit on the sale of
the securities by them and any discounts, commissions or concessions received by any of those underwriters, broker-dealers agents or other persons may be deemed to be underwriting discounts and
commissions under the Securities Act. </FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;In
connection with the distribution of the securities covered by this prospectus or otherwise, we or any selling stockholder may enter into hedging transactions with broker-dealers or
other financial institutions. In connection with such transactions, broker-dealers or other financial institutions may engage in short sales of our securities in the course of hedging the positions
they assume with us or any selling stockholder. We or any selling stockholder may also sell securities short and deliver the securities offered by this prospectus to close out our short positions. We
or any selling security holder may also enter into option or other transactions with broker-dealers or other financial institutions, which require the delivery to such broker-dealer or other financial
institution of securities offered by this prospectus, which securities such broker-dealer or other financial institution may resell pursuant to </FONT></P>

<P ALIGN="CENTER" style="font-family:times;"><FONT SIZE=2>28</FONT></P>

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<P style="font-family:times;"><FONT SIZE=2>this
prospectus, as supplemented or amended to reflect such transaction. We or any selling security holder may also from time to time pledge our securities pursuant to the margin provisions of our
customer agreements with our brokers. Upon our default, the broker may offer and sell such pledged securities from time to time pursuant to this prospectus, as supplemented or amended to reflect such
transaction. </FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;At
any time a particular offer of the securities covered by this prospectus is made, a revised prospectus or prospectus supplement, if required, will be distributed which will set forth
the aggregate amount of securities covered by this prospectus being offered and the terms of the offering, including the name or
names of any underwriters, dealers, brokers or agents, any discounts, commissions, concessions and other items constituting compensation from us and any discounts, commissions or concessions allowed
or reallowed or paid to dealers. Such prospectus supplement, and, if necessary, a post-effective amendment to the registration statement of which this prospectus is a part, will be filed with the SEC
to reflect the disclosure of additional information with respect to the distribution of the securities covered by this prospectus. In order to comply with the securities laws of certain states, if
applicable, the securities sold under this prospectus may be sold only through registered or licensed broker-dealers. In addition, in some states the securities may not be sold unless they have been
registered or qualified for sale in the applicable state or an exemption from registration or qualification requirements is available and is complied with. </FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;We
may solicit offers to purchase directly. Offers to purchase securities also may be solicited by agents designated by us from time to time. Any such agent involved in the offer or sale
of the securities in respect of which this prospectus is delivered will be named, and any commissions payable by us to such agent will be set forth, in the applicable prospectus supplement. Unless
otherwise indicated in such prospectus supplement, any such agent will be acting on a reasonable best efforts basis for the period of its appointment. Any such agent may be deemed to be an
underwriter, as that term is defined in the Securities Act, of the securities so offered and sold. </FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;UAL
may offer its equity securities into an existing trading market on the terms described in the applicable prospectus supplement. Underwriters, dealers and agents who may participate
in any at-the-market offerings will be described in the prospectus supplement relating thereto. </FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Securities
may also be offered and sold, if so indicated in the applicable prospectus supplement, in connection with a remarketing upon their purchase, in accordance with a redemption or
repayment pursuant to their terms, or otherwise, by one or more firms ("remarketing firms") acting as principals for their own accounts or as agents for us. Any remarketing firm will be identified and
the terms of its agreement, if any, with us and its compensation will be described in the applicable prospectus supplement. Remarketing firms may be deemed to be underwriters, as that term is defined
in the Securities Act, in connection with the securities remarketed thereby. </FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;If
so indicated in the applicable prospectus supplement, we may authorize agents, dealers or underwriters to solicit offers by certain institutions to purchase securities from us at the
public offering price set forth in the applicable prospectus supplement pursuant to delayed delivery contracts providing for payment and delivery on the date or dates stated in the applicable
prospectus supplement. Such delayed delivery contracts will be subject to only those conditions set forth in the applicable prospectus supplement. A commission indicated in the applicable prospectus
supplement will be paid to underwriters and agents soliciting purchases of securities pursuant to delayed delivery contracts accepted by us. </FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;In
connection with an underwritten offering, we and any selling stockholder would execute an underwriting agreement with an underwriter or underwriters. Unless otherwise indicated in the
revised prospectus or applicable prospectus supplement, such underwriting agreement would provide that the
obligations of the underwriter or underwriters are subject to certain conditions precedent, and that the underwriter or underwriters with respect to a sale of the covered securities will be obligated
to </FONT></P>

<P ALIGN="CENTER" style="font-family:times;"><FONT SIZE=2>29</FONT></P>

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<P style="font-family:times;"><FONT SIZE=2><A HREF="#bg15402a_main_toc">Table of Contents</A></FONT></P>

<P style="font-family:times;"><FONT SIZE=2>purchase
all of the covered securities, if any such securities are purchased. We or any selling security holder may grant to the underwriter or underwriters an option to purchase additional securities
at the public offering price, less any underwriting discount, as may be set forth in the revised prospectus or applicable prospectus supplement. If we or any selling security holder grants any such
option, the terms of that option will be set forth in the revised prospectus or applicable prospectus supplement. </FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Underwriters,
agents, brokers or dealers may be entitled, pursuant to relevant agreements entered into with us, to indemnification by us or any selling security holder against certain
civil liabilities, including liabilities under the Securities Act that may arise from any untrue statement or alleged untrue statement of a material fact, or any omission or alleged omission to state
a material fact in this prospectus, any supplement or amendment hereto, or in the registration statement of which this prospectus forms&nbsp;a part, or to contribution with respect to payments which
the underwriters, agents, brokers or dealers may be required to make. </FONT></P>

<P ALIGN="CENTER" style="font-family:times;"><FONT SIZE=2>30</FONT></P>

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<P ALIGN="CENTER" style="font-family:times;"><FONT SIZE=2><A NAME="di15402_where_you_can_find_more_information"> </A>
<A NAME="toc_di15402_1"> </A>
<BR></FONT><FONT SIZE=2><B>  <A NAME="DI_WHERE"></A>WHERE YOU CAN FIND MORE INFORMATION    <BR>    </B></FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;UAL and United file annual, quarterly and current reports and other information, and UAL files proxy statements with the SEC under the
Securities Exchange Act of 1934, as amended (the "Exchange Act"). You may read and copy this information at the Public Reference Room of the SEC, 100&nbsp;F&nbsp;Street,&nbsp;N.E., Washington,
D.C. 20549. You may obtain information on the operation of the Public Reference Room by calling the SEC at (800)&nbsp;SEC-0330. </FONT></P>


<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The
SEC also maintains an internet website that contains reports, proxy statements and other information about issuers, like us, who file reports electronically with the SEC. The address
of that site is </FONT><FONT SIZE=2><I>http://www.sec.gov.</I></FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;We
have filed with the SEC a registration statement on Form&nbsp;S-3, which includes this prospectus and which registers the securities that we may offer under this prospectus. The
registration statement, including the exhibits and schedules thereto, contains additional relevant information about us and the securities offered. </FONT></P>

<P ALIGN="CENTER" style="font-family:times;"><FONT SIZE=2><A NAME="di15402_incorporation_of_certain_documents_by_reference"> </A>
<A NAME="toc_di15402_2"> </A>
<BR></FONT><FONT SIZE=2><B>  <A NAME="DI_INCORP"></A>INCORPORATION OF CERTAIN DOCUMENTS BY REFERENCE    <BR>    </B></FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The SEC allows us to incorporate by reference information into this prospectus. This means that we can disclose important information to you by
referring you to another document filed separately with the SEC. The information incorporated by reference is considered to be part of this prospectus, except for any information that is superseded by
subsequent incorporated documents or by information that is included directly in this prospectus or any prospectus supplement. </FONT></P>


<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;This
prospectus incorporates by reference the documents listed below that we previously have filed with the SEC (excluding any information that has been "furnished" but not "filed" for
purposes of the Exchange Act) and that are not delivered with this prospectus. They contain important information about us and our financial condition. </FONT></P>
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<TH NOWRAP  ALIGN="LEFT" style="font-family:times;"><DIV style="border-bottom:solid #000000 1.0pt;margin-bottom:0pt;width:auto;display:inline-block;*display:inline;zoom:1;;"><FONT SIZE=1><B>Combined Filings by UAL and United

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<TH style="font-family:times;"><FONT SIZE=1>&nbsp;</FONT></TH>
<TH ALIGN="CENTER" style="font-family:times;border-bottom:solid #000000 1.0pt;"><FONT SIZE=1><B>Date Filed </B></FONT></TH>
</TR>
<TR BGCOLOR="#CCEEFF" VALIGN="BOTTOM">
<TD VALIGN="TOP" style="font-family:times;"><p style="font-family:times;margin-left:10pt;text-indent:-10pt;"><FONT SIZE=2> </FONT><FONT SIZE=2><A HREF="http://www.sec.gov/Archives/edgar/data/100517/000119312517054129/d300268d10k.htm">Annual Report on Form&nbsp;10-K for the year
ended December&nbsp;31, 2016</A> (including those portions of UAL's <A HREF="http://www.sec.gov/Archives/edgar/data/100517/000104746917002814/a2231641zdef14a.htm">Definitive Proxy Statement on Schedule&nbsp;14A filed with the SEC on April&nbsp;21,
2017</A> that are specifically incorporated by reference into such Annual Report on Form&nbsp;10-K)</FONT></TD>
<TD VALIGN="TOP" style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD style="font-family:times;"><FONT SIZE=2>February&nbsp;23, 2017</FONT></TD>
</TR>
<TR BGCOLOR="White" VALIGN="BOTTOM">
<TD VALIGN="TOP" style="font-family:times;"><p style="font-family:times;margin-left:10pt;text-indent:-10pt;"><FONT SIZE=2> </FONT><FONT SIZE=2><A HREF="http://www.sec.gov/Archives/edgar/data/100517/000119312517127429/d334701d10q.htm">Quarterly Report on Form&nbsp;10-Q for the
quarter ended March&nbsp;31, 2017</A></FONT></TD>
<TD VALIGN="TOP" style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD style="font-family:times;"><FONT SIZE=2>April&nbsp;18, 2017</FONT></TD>
</TR>
<TR BGCOLOR="#CCEEFF" VALIGN="BOTTOM">
<TD VALIGN="TOP" style="font-family:times;"><p style="font-family:times;margin-left:10pt;text-indent:-10pt;"><FONT SIZE=2> </FONT><FONT SIZE=2><A HREF="http://www.sec.gov/Archives/edgar/data/100517/000119312517231250/d414345d10q.htm">Quarterly Report on Form&nbsp;10-Q for the
quarter ended June&nbsp;30, 2017</A></FONT></TD>
<TD VALIGN="TOP" style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD style="font-family:times;"><FONT SIZE=2>July&nbsp;19, 2017</FONT></TD>
</TR>
<TR BGCOLOR="White" VALIGN="BOTTOM">
<TD VALIGN="TOP" style="font-family:times;"><p style="font-family:times;margin-left:10pt;text-indent:-10pt;"><FONT SIZE=2> </FONT><FONT SIZE=2><A HREF="http://www.sec.gov/Archives/edgar/data/100517/000119312517313831/d437791d10q.htm">Quarterly Report on Form&nbsp;10-Q for the
quarter ended September&nbsp;30, 2017</A></FONT></TD>
<TD VALIGN="TOP" style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD style="font-family:times;"><FONT SIZE=2>October&nbsp;19, 2017</FONT></TD>
</TR>
<TR BGCOLOR="#CCEEFF" VALIGN="BOTTOM">
<TD VALIGN="TOP" style="font-family:times;"><p style="font-family:times;margin-left:10pt;text-indent:-10pt;"><FONT SIZE=2> </FONT><FONT SIZE=2><A HREF="http://www.sec.gov/Archives/edgar/data/100517/000095015517000002/e75745569frm8k.htm">Current Report on
Form&nbsp;8-K</A></FONT></TD>
<TD VALIGN="TOP" style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD style="font-family:times;"><FONT SIZE=2>January&nbsp;26, 2017</FONT></TD>
</TR>
<TR BGCOLOR="White" VALIGN="BOTTOM">
<TD VALIGN="TOP" style="font-family:times;"><p style="font-family:times;margin-left:10pt;text-indent:-10pt;"><FONT SIZE=2> </FONT><FONT SIZE=2><A HREF="http://www.sec.gov/Archives/edgar/data/100517/000095015517000004/e75742257frm8k.htm">Current Report on
Form&nbsp;8-K</A></FONT></TD>
<TD VALIGN="TOP" style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD style="font-family:times;"><FONT SIZE=2>January&nbsp;27, 2017</FONT></TD>
</TR>
<TR BGCOLOR="#CCEEFF" VALIGN="BOTTOM">
<TD VALIGN="TOP" style="font-family:times;"><p style="font-family:times;margin-left:10pt;text-indent:-10pt;"><FONT SIZE=2> </FONT><FONT SIZE=2><A HREF="http://www.sec.gov/Archives/edgar/data/100517/000095015517000006/e77015399frm8k.htm">Current Report on
Form&nbsp;8-K</A></FONT></TD>
<TD VALIGN="TOP" style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD style="font-family:times;"><FONT SIZE=2>April&nbsp;3, 2017</FONT></TD>
</TR>
<TR BGCOLOR="White" VALIGN="BOTTOM">
<TD VALIGN="TOP" style="font-family:times;"><p style="font-family:times;margin-left:10pt;text-indent:-10pt;"><FONT SIZE=2> </FONT><FONT SIZE=2><A HREF="http://www.sec.gov/Archives/edgar/data/100517/000110465917025203/a17-11675_18k.htm">Current Report on Form&nbsp;8-K</A></FONT></TD>
<TD VALIGN="TOP" style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD style="font-family:times;"><FONT SIZE=2>April&nbsp;21, 2017</FONT></TD>
</TR>
<TR BGCOLOR="#CCEEFF" VALIGN="BOTTOM">
<TD VALIGN="TOP" style="font-family:times;"><p style="font-family:times;margin-left:10pt;text-indent:-10pt;"><FONT SIZE=2> </FONT><FONT SIZE=2><A HREF="http://www.sec.gov/Archives/edgar/data/100517/000119312517299550/d459174d8k.htm">Current Report on Form&nbsp;8-K</A></FONT></TD>
<TD VALIGN="TOP" style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD style="font-family:times;"><FONT SIZE=2>September&nbsp;29, 2017</FONT></TD>
</TR>
<TR BGCOLOR="White" VALIGN="BOTTOM">
<TD VALIGN="TOP" style="font-family:times;"><p style="font-family:times;margin-left:10pt;text-indent:-10pt;"><FONT SIZE=2> </FONT><FONT SIZE=2><A HREF="http://www.sec.gov/Archives/edgar/data/100517/000119312517302468/d463744d8k.htm">Current Report on Form&nbsp;8-K</A></FONT></TD>
<TD VALIGN="TOP" style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD style="font-family:times;"><FONT SIZE=2>October&nbsp;4, 2017</FONT></TD>
</TR>
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 <P ALIGN="CENTER" style="font-family:times;"><FONT SIZE=2>31</FONT></P>

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<A NAME="page_di15402_1_32"> </A>

<P style="font-family:times;"><FONT SIZE=2><A HREF="#bg15402a_main_toc">Table of Contents</A></FONT></P>

<P style="font-family:times;"><FONT SIZE=2><BR></FONT></P>
 <div style="display:none;*display:block;margin-top:-1pt;"></div>

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<TH style="font-family:times;"><FONT SIZE=1>&nbsp;</FONT></TH>
<TH ALIGN="CENTER" style="font-family:times;border-bottom:solid #000000 1.0pt;"><FONT SIZE=1><B>Date Filed </B></FONT></TH>
</TR>
<TR BGCOLOR="#CCEEFF" VALIGN="TOP">
<TD style="font-family:times;"><p style="font-family:times;margin-left:10pt;text-indent:-10pt;"><FONT SIZE=2> </FONT><FONT SIZE=2><A HREF="http://www.sec.gov/Archives/edgar/data/100517/000095015710001888/form8a12b.htm">Registration Statement on Form&nbsp;8-A, description of UAL's
Common Stock, par value $0.01 per share</A></FONT></TD>
<TD style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD VALIGN="BOTTOM" style="font-family:times;"><FONT SIZE=2>September&nbsp;30, 2010, including any amendments or reports filed to update such description</FONT></TD>
</TR>
<TR BGCOLOR="White" VALIGN="TOP">
<TD style="font-family:times;"><p style="font-family:times;margin-left:10pt;text-indent:-10pt;"><FONT SIZE=2> </FONT><FONT SIZE=2><A HREF="http://www.sec.gov/Archives/edgar/data/100517/000119312517056371/d351042d8k.htm">Current Report on Form&nbsp;8-K</A></FONT></TD>
<TD style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD VALIGN="BOTTOM" style="font-family:times;"><FONT SIZE=2>February&nbsp;24, 2017</FONT></TD>
</TR>
<TR BGCOLOR="#CCEEFF" VALIGN="TOP">
<TD style="font-family:times;"><p style="font-family:times;margin-left:10pt;text-indent:-10pt;"><FONT SIZE=2> </FONT><FONT SIZE=2><A HREF="http://www.sec.gov/Archives/edgar/data/100517/000119312517187534/d378920d8k.htm">Current Report on Form&nbsp;8-K</A></FONT></TD>
<TD style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD VALIGN="BOTTOM" style="font-family:times;"><FONT SIZE=2>May&nbsp;30, 2017</FONT></TD>
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<TD WIDTH="111pt" style="font-family:times;"></TD>
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<TH NOWRAP  ALIGN="LEFT" style="font-family:times;"><DIV style="border-bottom:solid #000000 1.0pt;margin-bottom:0pt;width:auto;display:inline-block;*display:inline;zoom:1;;"><FONT SIZE=1><B>Filings by United

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<TH style="font-family:times;"><FONT SIZE=1>&nbsp;</FONT></TH>
<TH ALIGN="CENTER" style="font-family:times;border-bottom:solid #000000 1.0pt;"><FONT SIZE=1><B>Date Filed </B></FONT></TH>
</TR>
<TR BGCOLOR="#CCEEFF" VALIGN="TOP">
<TD VALIGN="BOTTOM" style="font-family:times;"><p style="font-family:times;margin-left:10pt;text-indent:-10pt;"><FONT SIZE=2> </FONT><FONT SIZE=2><A HREF="http://www.sec.gov/Archives/edgar/data/319687/000119312517334241/d489521d8k.htm">Current Report on Form&nbsp;8-K</A></FONT></TD>
<TD VALIGN="BOTTOM" style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD VALIGN="BOTTOM" style="font-family:times;"><FONT SIZE=2>November&nbsp;6, 2017</FONT></TD>
</TR>
<TR BGCOLOR="White" VALIGN="TOP">
<TD VALIGN="BOTTOM" style="font-family:times;"><p style="font-family:times;margin-left:10pt;text-indent:-10pt;"><FONT SIZE=2> </FONT><FONT SIZE=2><A HREF="http://www.sec.gov/Archives/edgar/data/319687/000119312517340903/d471553d8k.htm">Current Report on Form&nbsp;8-K</A></FONT></TD>
<TD VALIGN="BOTTOM" style="font-family:times;"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD VALIGN="BOTTOM" style="font-family:times;"><FONT SIZE=2>November&nbsp;13, 2017</FONT></TD>
</TR>
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 <P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The
SEC file number is 1-6033 for UAL and 1-10323 for United. </FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;We
incorporate by reference additional documents that we may file with the SEC under Sections&nbsp;13(a), 13(c), 14 or 15(d) of the Exchange Act (excluding any information that has
been "furnished" but not "filed" for purposes of the Exchange Act) between the date of this prospectus and the termination of the offering of securities under this prospectus. These documents include
our periodic reports, such as Annual Reports on Form&nbsp;10-K, Quarterly Reports on Form&nbsp;10-Q and Current Reports on Form&nbsp;8-K, as well as our proxy statements. </FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;You
may obtain any of these incorporated documents from us without charge, excluding any exhibits to those documents unless the exhibit is specifically incorporated by reference in such
document. You may obtain documents incorporated by reference in this prospectus by requesting them from us in writing or by telephone at the following address: </FONT></P>

<P ALIGN="CENTER" style="font-family:times;"><FONT SIZE=2>United
Continental Holdings,&nbsp;Inc.<BR>
United Airlines,&nbsp;Inc.<BR>
233 S. Wacker Drive<BR>
Chicago, Illinois 60606<BR>
(872)&nbsp;825-4000<BR>
Attention: Secretary </FONT></P>

<P ALIGN="CENTER" style="font-family:times;"><FONT SIZE=2><A NAME="di15402_legal_matters"> </A>
<A NAME="toc_di15402_3"> </A>
<BR></FONT><FONT SIZE=2><B>  <A NAME="DI_LEGAL"></A>LEGAL MATTERS    <BR>    </B></FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Unless otherwise indicated in the applicable prospectus supplement, our counsel, Sidley Austin&nbsp;LLP, Chicago, Illinois, will pass upon the
validity of the securities offered in this prospectus and any related prospectus supplement. The legality of the securities offered hereby and certain other matters for any underwriters, dealers or
agents will be passed upon by counsel as may be specified in the applicable prospectus supplement. </FONT></P>

<P ALIGN="CENTER" style="font-family:times;"><FONT SIZE=2><A NAME="di15402_experts"> </A>
<A NAME="toc_di15402_4"> </A>
<BR></FONT><FONT SIZE=2><B>  <A NAME="DI_EXPERTS"></A>EXPERTS    <BR>    </B></FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The consolidated financial statements of UAL appearing in UAL's
<A HREF="http://www.sec.gov/Archives/edgar/data/100517/000119312517054129/d300268d10k.htm">Annual Report on Form&nbsp;10-K for the year ended December&nbsp;31, 2016</A>
(including the financial statement schedule appearing therein) and the effectiveness of UAL's internal control over financial reporting as of December&nbsp;31, 2016 have been audited
by Ernst&nbsp;&amp; Young&nbsp;LLP, an independent registered public accounting firm, as set forth in their reports thereon, and incorporated herein by reference. Such consolidated financial
statements are incorporated herein by reference in reliance upon such reports given on the authority of such firm as experts in accounting and auditing. </FONT></P>

<P ALIGN="CENTER" style="font-family:times;"><FONT SIZE=2>32</FONT></P>

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<P style="font-family:times;"><FONT SIZE=2><A HREF="#bg15402a_main_toc">Table of Contents</A></FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The
consolidated financial statements of United appearing in United's <A HREF="http://www.sec.gov/Archives/edgar/data/100517/000119312517054129/d300268d10k.htm">Annual Report
on Form&nbsp;10-K for the year ended December&nbsp;31, 2016</A> (including the financial statement schedule appearing therein), have been audited by Ernst&nbsp;&amp; Young&nbsp;LLP, an
independent registered public accounting firm, as set forth in their report thereon, and incorporated herein by reference. Such consolidated financial statements are incorporated herein by reference
in reliance upon such report given on the authority of such firm as experts in accounting and auditing. </FONT></P>

<P ALIGN="CENTER" style="font-family:times;"><FONT SIZE=2>33</FONT></P>

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</FONT> <FONT SIZE=2><A HREF="#bg15401a_main_toc">Table of Contents</A> </FONT></P>

<P style="font-family:times;"><FONT SIZE=2>&nbsp;<BR></FONT></P>


<P style="font-family:times;"><FONT SIZE=2><div
style="width:100%;border-top:solid #000000 3.0pt;padding:0in 0in 0in 0in;font-size:3.0pt;"></div>
<div style="width:100%;border-top:solid #000000 1.0pt;padding:0in 0in 0in 0in;font-size:4.0pt;"></div> </FONT></P>

<P ALIGN="CENTER" style="font-family:times;"><FONT SIZE=4><B>Up to 28,000,000 Shares  </B></FONT></P>

<P ALIGN="CENTER" style="font-family:times;"><FONT SIZE=4><B>
<IMG SRC="g399502.jpg" ALT="LOGO" WIDTH="360" HEIGHT="75">
  </B></FONT></P>

<P ALIGN="CENTER" style="font-family:times;"><FONT SIZE=5><B>UNITED AIRLINES HOLDINGS,&nbsp;INC.  </B></FONT></P>

<P ALIGN="CENTER" style="font-family:times;"><FONT SIZE=4><B>Common Stock  </B></FONT></P>

<P ALIGN="CENTER" style="font-family:times;"><FONT SIZE=4><I>

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<P ALIGN="CENTER" style="font-family:times;"><FONT SIZE=3><B>PROSPECTUS SUPPLEMENT  </B></FONT></P>

<P ALIGN="CENTER" style="font-family:times;"><FONT SIZE=3><I>

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<BR>  </B></FONT></P>
 <div style="display:none;*display:block;margin-top:-1pt;"></div>

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<TD VALIGN="TOP" style="font-family:times;"><FONT SIZE=5><B>Citigroup</B></FONT></TD>
<TD VALIGN="TOP" style="font-family:times;"><FONT SIZE=5>&nbsp;</FONT></TD>
<TD ALIGN="CENTER" VALIGN="TOP" style="font-family:times;"><FONT SIZE=5><B>BofA Securities</B></FONT></TD>
<TD VALIGN="TOP" style="font-family:times;"><FONT SIZE=5>&nbsp;</FONT></TD>
<TD ALIGN="RIGHT" VALIGN="TOP" style="font-family:times;"><FONT SIZE=5><B>J.P. Morgan</B></FONT></TD>
</TR>
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 <P ALIGN="CENTER" style="font-family:times;"><FONT SIZE=2><B>June&nbsp;15, 2020  </B></FONT></P>

<P style="font-family:times;"><FONT SIZE=2><B> <div style="width:100%;border-top:solid #000000 1.0pt;padding:0in 0in 0in 0in;font-size:3.0pt;"></div>
<div style="width:100%;border-top:solid #000000 3.0pt;padding:0in 0in 0in 0in;font-size:4.0pt;"></div>  </B></FONT></P>

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end
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
