<SEC-DOCUMENT>0001085146-25-005192.txt : 20250814
<SEC-HEADER>0001085146-25-005192.hdr.sgml : 20250814
<ACCEPTANCE-DATETIME>20250814132549
ACCESSION NUMBER:		0001085146-25-005192
CONFORMED SUBMISSION TYPE:	SCHEDULE 13G/A
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20250814
DATE AS OF CHANGE:		20250814

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			United Airlines Holdings, Inc.
		CENTRAL INDEX KEY:			0000100517
		STANDARD INDUSTRIAL CLASSIFICATION:	AIR TRANSPORTATION, SCHEDULED [4512]
		ORGANIZATION NAME:           	01 Energy & Transportation
		EIN:				362675207
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SCHEDULE 13G/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	005-17506
		FILM NUMBER:		251216987

	BUSINESS ADDRESS:	
		STREET 1:		E. ANNA HA - WHQLD
		STREET 2:		233 SOUTH WACKER DRIVE
		CITY:			CHICAGO
		STATE:			IL
		ZIP:			60606
		BUSINESS PHONE:		872-825-4000

	MAIL ADDRESS:	
		STREET 1:		E. ANNA HA - 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

FILED BY:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			PRIMECAP MANAGEMENT CO/CA/
		CENTRAL INDEX KEY:			0000763212
		ORGANIZATION NAME:           	
		EIN:				953868081

	FILING VALUES:
		FORM TYPE:		SCHEDULE 13G/A

	BUSINESS ADDRESS:	
		STREET 1:		177 EAST COLORADO BLVD.
		STREET 2:		11TH FLOOR
		CITY:			PASADENA
		STATE:			CA
		ZIP:			91105
		BUSINESS PHONE:		6263049222

	MAIL ADDRESS:	
		STREET 1:		177 EAST COLORADO BLVD.
		STREET 2:		11TH FLOOR
		CITY:			PASADENA
		STATE:			CA
		ZIP:			91105
</SEC-HEADER>
<DOCUMENT>
<TYPE>SCHEDULE 13G/A
<SEQUENCE>1
<FILENAME>primary_doc.xml
<TEXT>
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    <submissionType>SCHEDULE 13G/A</submissionType>
    <previousAccessionNumber>0001104659-14-070246</previousAccessionNumber>
    <filerInfo>
      <filer>
        <filerCredentials>
          <cik>0000763212</cik>
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      <liveTestFlag>LIVE</liveTestFlag>



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  <formData>
    <coverPageHeader>
      <amendmentNo>11</amendmentNo>
      <securitiesClassTitle>COM</securitiesClassTitle>
      <eventDateRequiresFilingThisStatement>06/30/2025</eventDateRequiresFilingThisStatement>
      <issuerInfo>
        <issuerCik>0000100517</issuerCik>
        <issuerName>United Airlines Holdings, Inc.</issuerName>
        <issuerCusip>910047109</issuerCusip>
        <issuerPrincipalExecutiveOfficeAddress>
          <ns1:street1>233 S. Wacker Drive</ns1:street1>
          <ns1:city>Chicago</ns1:city>
          <ns1:stateOrCountry>IL</ns1:stateOrCountry>
          <ns1:zipCode>60606</ns1:zipCode>
        </issuerPrincipalExecutiveOfficeAddress>
      </issuerInfo>
      <designateRulesPursuantThisScheduleFiled>
        <designateRulePursuantThisScheduleFiled>Rule 13d-1(b)</designateRulePursuantThisScheduleFiled>
      </designateRulesPursuantThisScheduleFiled>
    </coverPageHeader>
    <coverPageHeaderReportingPersonDetails>


      <reportingPersonName>PRIMECAP MANAGEMENT CO/CA/</reportingPersonName>
      <citizenshipOrOrganization>X1</citizenshipOrOrganization>
      <reportingPersonBeneficiallyOwnedNumberOfShares>
        <soleVotingPower>18436240</soleVotingPower>
        <sharedVotingPower>0</sharedVotingPower>
        <soleDispositivePower>18844880</soleDispositivePower>
        <sharedDispositivePower>0</sharedDispositivePower>
      </reportingPersonBeneficiallyOwnedNumberOfShares>
      <reportingPersonBeneficiallyOwnedAggregateNumberOfShares>18844880</reportingPersonBeneficiallyOwnedAggregateNumberOfShares>
      <aggregateAmountExcludesCertainSharesFlag>N</aggregateAmountExcludesCertainSharesFlag>
      <classPercent>5.75</classPercent>
      <typeOfReportingPerson>IA</typeOfReportingPerson>
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    <items>
      <item1>
        <issuerName>United Airlines Holdings, Inc.</issuerName>
        <issuerPrincipalExecutiveOfficeAddress>233 S. Wacker Drive, Chicago, ILLINOIS
60606</issuerPrincipalExecutiveOfficeAddress>
      </item1>
      <item2>
        <filingPersonName>PRIMECAP MANAGEMENT CO/CA/</filingPersonName>
        <principalBusinessOfficeOrResidenceAddress>177 EAST COLORADO BLVD.
11TH FLOOR
PASADENA, California
91105</principalBusinessOfficeOrResidenceAddress>
        <citizenship>PRIMECAP MANAGEMENT CO/CA/ - UNITED STATES</citizenship>
      </item2>
      <item3>
        <notApplicableFlag>N</notApplicableFlag>
        <typeOfPersonFiling>IA</typeOfPersonFiling>
      </item3>
      <item4>
        <amountBeneficiallyOwned>18,844,880</amountBeneficiallyOwned>
        <classPercent>5.75</classPercent>
        <numberOfSharesPersonHas>
          <solePowerOrDirectToVote>PRIMECAP MANAGEMENT CO/CA/ - 18,436,240</solePowerOrDirectToVote>
          <sharedPowerOrDirectToVote>PRIMECAP MANAGEMENT CO/CA/ - 0</sharedPowerOrDirectToVote>
          <solePowerOrDirectToDispose>PRIMECAP MANAGEMENT CO/CA/ - 18,844,880</solePowerOrDirectToDispose>
          <sharedPowerOrDirectToDispose>PRIMECAP MANAGEMENT CO/CA/ - 0</sharedPowerOrDirectToDispose>
        </numberOfSharesPersonHas>
      </item4>
      <item5>
        <notApplicableFlag>Y</notApplicableFlag>
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      <item9>
        <notApplicableFlag>Y</notApplicableFlag>
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      <item10>
        <notApplicableFlag>N</notApplicableFlag>
        <certifications>By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired and are held in the ordinary course of business and were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under ?? 240.14a-11.</certifications>
      </item10>
    </items>
    <signatureInformation>
      <reportingPersonName>PRIMECAP MANAGEMENT CO/CA/</reportingPersonName>
      <signatureDetails>
        <signature>Jorge A. Rodriguez</signature>
        <title>Deputy Chief Compliance Officer</title>
        <date>08/13/2025</date>
      </signatureDetails>
    </signatureInformation>
  </formData>
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</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
