<SEC-DOCUMENT>0000902664-24-005428.txt : 20240904
<SEC-HEADER>0000902664-24-005428.hdr.sgml : 20240904
<ACCEPTANCE-DATETIME>20240904183156
ACCESSION NUMBER:		0000902664-24-005428
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20240830
FILED AS OF DATE:		20240904
DATE AS OF CHANGE:		20240904

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Watson Patricia A
		CENTRAL INDEX KEY:			0001570660
		ORGANIZATION NAME:           	

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-07259
		FILM NUMBER:		241278837

	MAIL ADDRESS:	
		STREET 1:		TOTAL SYSTEM SERVICES, INC.
		STREET 2:		ONE TSYS WAY
		CITY:			COLUMBUS
		STATE:			GA
		ZIP:			31901

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			SOUTHWEST AIRLINES CO
		CENTRAL INDEX KEY:			0000092380
		STANDARD INDUSTRIAL CLASSIFICATION:	AIR TRANSPORTATION, SCHEDULED [4512]
		ORGANIZATION NAME:           	01 Energy & Transportation
		IRS NUMBER:				741563240
		STATE OF INCORPORATION:			TX
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		2702 LOVE FIELD DR
		STREET 2:		P O BOX 36611
		CITY:			DALLAS
		STATE:			TX
		ZIP:			75235
		BUSINESS PHONE:		2147924000

	MAIL ADDRESS:	
		STREET 1:		PO BOX 36611
		CITY:			DALLAS
		STATE:			TX
		ZIP:			75235-1611

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	AIR SOUTHWEST CO
		DATE OF NAME CHANGE:	19760108
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>ownership.xml
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0508</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2024-08-30</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000092380</issuerCik>
        <issuerName>SOUTHWEST AIRLINES CO</issuerName>
        <issuerTradingSymbol>LUV</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001570660</rptOwnerCik>
            <rptOwnerName>Watson Patricia A</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>5105 KNIGHTS COURT</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>FLOWER MOUND</rptOwnerCity>
            <rptOwnerState>TX</rptOwnerState>
            <rptOwnerZipCode>75022</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>1</isOther>
            <officerTitle></officerTitle>
            <otherText>See Remarks</otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <aff10b5One>0</aff10b5One>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock, $1.00 par value per share (&quot;Common Stock&quot;)</value>
            </securityTitle>
            <transactionDate>
                <value>2024-08-30</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>J</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
                <footnoteId id="F1"/>
            </transactionCoding>
            <transactionTimeliness></transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>58</value>
                    <footnoteId id="F1"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>26.03</value>
                    <footnoteId id="F1"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>1280</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By spouse</value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>3964</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">The transaction reported herein represents an acquisition under the Issuer's Amended and Restated 1991 Employee Stock Purchase Plan (the &quot;ESPP&quot;). The amounts reported herein are estimates based on the terms of the ESPP. The Reporting Person will amend this Form 4 if the actual number of shares or purchase price is different than the amounts reported herein once such information is provided by the ESPP administrator.</footnote>
    </footnotes>

    <remarks>The Reporting Person may be deemed to be a member of a &quot;group&quot; for purposes of Section 13(d) of the Exchange Act that may be deemed to collectively beneficially own more than 10% of the Issuer's outstanding shares of Common Stock as disclosed in Amendment No. 1 to the Schedule 13D filed by Elliott Investment Management L.P. with the Securities and Exchange Commission on August 13, 2024.</remarks>

    <ownerSignature>
        <signatureName>/s/ Elliot Greenberg, Attorney-in-fact for Patricia Watson</signatureName>
        <signatureDate>2024-09-04</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
