<SEC-DOCUMENT>0001235126-24-000033.txt : 20240718
<SEC-HEADER>0001235126-24-000033.hdr.sgml : 20240718
<ACCEPTANCE-DATETIME>20240718190900
ACCESSION NUMBER:		0001235126-24-000033
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20240715
FILED AS OF DATE:		20240718
DATE AS OF CHANGE:		20240718

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			DeAngelo Scott Wayne
		CENTRAL INDEX KEY:			0001801941
		ORGANIZATION NAME:           	

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-33166
		FILM NUMBER:		241125753

	MAIL ADDRESS:	
		STREET 1:		1201 N TOWN CENTER DRIVE
		CITY:			LAS VEGAS
		STATE:			NV
		ZIP:			89144

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Allegiant Travel CO
		CENTRAL INDEX KEY:			0001362468
		STANDARD INDUSTRIAL CLASSIFICATION:	AIR TRANSPORTATION, SCHEDULED [4512]
		ORGANIZATION NAME:           	01 Energy & Transportation
		IRS NUMBER:				204745737
		STATE OF INCORPORATION:			NV
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		1201 N. TOWN CENTER DRIVE
		CITY:			LAS VEGAS
		STATE:			NV
		ZIP:			89144
		BUSINESS PHONE:		702-851-7300

	MAIL ADDRESS:	
		STREET 1:		1201 N. TOWN CENTER DRIVE
		CITY:			LAS VEGAS
		STATE:			NV
		ZIP:			89144
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>primary_doc.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0508</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2024-07-15</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001362468</issuerCik>
        <issuerName>Allegiant Travel CO</issuerName>
        <issuerTradingSymbol>ALGT</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001801941</rptOwnerCik>
            <rptOwnerName>DeAngelo Scott Wayne</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>1201 N TOWN CENTER DRIVE</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>LAS VEGAS</rptOwnerCity>
            <rptOwnerState>NV</rptOwnerState>
            <rptOwnerZipCode>89144</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>EVP and CMO</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <aff10b5One>0</aff10b5One>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2024-07-15</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>D</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>7700</value>
                    <footnoteId id="F1"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                    <footnoteId id="F2"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>57112</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">Beneficial owner granted 77,000 shares of restricted stock on April 3, 2023 with vesting over time pursuant to beneficial owner's Amended and Restated Employment Agreement dated August 1, 2022. Of these shares, 21,560 shares have already vested, leaving 55,440 shares unvested.

Beneficial owner entered into a Second Amended and Restated Employment Agreement effective as of July 1, 2024 (the &quot;2024 Agreement&quot;). Pursuant to the 2024 Agreement, 7,700 shares of the remaining 55,440 unvested shares shall be cancelled.

The remaining 47,740 shares shall vest as follows: (i) 7,956 shares on October 1, 2024; (ii) 8,841 shares on April 1, 2025; (iii) 8,841 shares on October 1, 2025; (iv) 8,841 shares on April 1, 2026; (v) 8,841 shares on October 1, 2026; and (vi) the final 4,420 shares on January 1, 2027.</footnote>
        <footnote id="F2">Cancellation of a portion of unvested shares of restricted stock previously granted.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>Robert B. Goldberg, under power of attorney</signatureName>
        <signatureDate>2024-07-18</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
