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        <filerInfo>
            <filer>
                <filerCredentials>
                    <cik>0001198584</cik>
                    <ccc>XXXXXXXX</ccc>
                </filerCredentials>
            </filer>
            <liveTestFlag>LIVE</liveTestFlag>



        </filerInfo>
    </headerData>
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        <issuerInfo>
            <issuerCik>0001498710</issuerCik>
            <issuerName>Spirit Airlines, Inc.</issuerName>
            <secFileNumber>001-35186</secFileNumber>
            <issuerAddress>
                <ns2:street1>1731 Radiant Drive</ns2:street1>
                <ns2:city>Dania Beach</ns2:city>
                <ns2:stateOrCountry>FL</ns2:stateOrCountry>
                <ns2:zipCode>33004</ns2:zipCode>
            </issuerAddress>
            <issuerContactPhone>(954) 447-7920</issuerContactPhone>
            <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>SABRINA &amp; ROBERT TRUST</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
            <relationshipsToIssuer>
                <relationshipToIssuer>Director</relationshipToIssuer>
            </relationshipsToIssuer>
        </issuerInfo>
        <securitiesInformation>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <brokerOrMarketmakerDetails>
                <name>Morgan Stanley Smith Barney LLC Executive Financial Services</name>
                <address>
                    <ns2:street1>1 New York Plaza</ns2:street1>
                    <ns2:street2>8th Floor</ns2:street2>
                    <ns2:city>New York</ns2:city>
                    <ns2:stateOrCountry>NY</ns2:stateOrCountry>
                    <ns2:zipCode>10004</ns2:zipCode>
                </address>
            </brokerOrMarketmakerDetails>
            <noOfUnitsSold>24735</noOfUnitsSold>
            <aggregateMarketValue>15088.35</aggregateMarketValue>
            <noOfUnitsOutstanding>109523815</noOfUnitsOutstanding>
            <approxSaleDate>11/29/2024</approxSaleDate>
            <securitiesExchangeName>OTCLNK</securitiesExchangeName>
        </securitiesInformation>
        <securitiesToBeSold>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <acquiredDate>02/21/2017</acquiredDate>
            <natureOfAcquisitionTransaction>Restricted stock vesting under a registered plan</natureOfAcquisitionTransaction>
            <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
            <isGiftTransaction>N</isGiftTransaction>
            <amountOfSecuritiesAcquired>205</amountOfSecuritiesAcquired>
            <paymentDate>02/21/2017</paymentDate>
            <natureOfPayment>Services Rendered</natureOfPayment>
        </securitiesToBeSold>
        <securitiesToBeSold>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <acquiredDate>01/25/2018</acquiredDate>
            <natureOfAcquisitionTransaction>Restricted stock vesting under a registered plan</natureOfAcquisitionTransaction>
            <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
            <isGiftTransaction>N</isGiftTransaction>
            <amountOfSecuritiesAcquired>1697</amountOfSecuritiesAcquired>
            <paymentDate>01/25/2018</paymentDate>
            <natureOfPayment>Services Rendered</natureOfPayment>
        </securitiesToBeSold>
        <securitiesToBeSold>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <acquiredDate>01/16/2019</acquiredDate>
            <natureOfAcquisitionTransaction>Restricted stock vesting under a registered plan</natureOfAcquisitionTransaction>
            <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
            <isGiftTransaction>N</isGiftTransaction>
            <amountOfSecuritiesAcquired>2197</amountOfSecuritiesAcquired>
            <paymentDate>01/16/2019</paymentDate>
            <natureOfPayment>Services Rendered</natureOfPayment>
        </securitiesToBeSold>
        <securitiesToBeSold>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <acquiredDate>01/13/2020</acquiredDate>
            <natureOfAcquisitionTransaction>Restricted stock vesting under a registered plan</natureOfAcquisitionTransaction>
            <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
            <isGiftTransaction>N</isGiftTransaction>
            <amountOfSecuritiesAcquired>1718</amountOfSecuritiesAcquired>
            <paymentDate>01/13/2020</paymentDate>
            <natureOfPayment>Services Rendered</natureOfPayment>
        </securitiesToBeSold>
        <securitiesToBeSold>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <acquiredDate>01/14/2021</acquiredDate>
            <natureOfAcquisitionTransaction>Restricted stock vesting under a registered plan</natureOfAcquisitionTransaction>
            <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
            <isGiftTransaction>N</isGiftTransaction>
            <amountOfSecuritiesAcquired>3015</amountOfSecuritiesAcquired>
            <paymentDate>01/14/2021</paymentDate>
            <natureOfPayment>Services Rendered</natureOfPayment>
        </securitiesToBeSold>
        <securitiesToBeSold>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <acquiredDate>01/13/2022</acquiredDate>
            <natureOfAcquisitionTransaction>Restricted stock vesting under a registered plan</natureOfAcquisitionTransaction>
            <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
            <isGiftTransaction>N</isGiftTransaction>
            <amountOfSecuritiesAcquired>4769</amountOfSecuritiesAcquired>
            <paymentDate>01/13/2022</paymentDate>
            <natureOfPayment>Services Rendered</natureOfPayment>
        </securitiesToBeSold>
        <securitiesToBeSold>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <acquiredDate>01/13/2023</acquiredDate>
            <natureOfAcquisitionTransaction>Restricted stock vesting under a registered plan</natureOfAcquisitionTransaction>
            <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
            <isGiftTransaction>N</isGiftTransaction>
            <amountOfSecuritiesAcquired>5046</amountOfSecuritiesAcquired>
            <paymentDate>01/13/2023</paymentDate>
            <natureOfPayment>Services Rendered</natureOfPayment>
        </securitiesToBeSold>
        <securitiesToBeSold>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <acquiredDate>01/30/2024</acquiredDate>
            <natureOfAcquisitionTransaction>Restricted stock vesting under a registered plan</natureOfAcquisitionTransaction>
            <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
            <isGiftTransaction>N</isGiftTransaction>
            <amountOfSecuritiesAcquired>6088</amountOfSecuritiesAcquired>
            <paymentDate>01/30/2024</paymentDate>
            <natureOfPayment>Services Rendered</natureOfPayment>
        </securitiesToBeSold>
        <nothingToReportFlagOnSecuritiesSoldInPast3Months>Y</nothingToReportFlagOnSecuritiesSoldInPast3Months>
        <noticeSignature>
            <noticeDate>11/29/2024</noticeDate>
            <planAdoptionDates/>
            <signature>/s/ Robert Johnson TRUSTEE</signature>
        </noticeSignature>
    </formData>
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144
0001198584
XXXXXXXX
LIVE
0001498710
Spirit Airlines, Inc.
001-35186
1731 Radiant Drive
Dania Beach
FL
33004
(954) 447-7920
SABRINA & ROBERT TRUST
Director
Common
Morgan Stanley Smith Barney LLC Executive Financial Services
1 New York Plaza
8th Floor
New York
NY
10004
24735
15088.35
109523815
11/29/2024
OTCLNK
Common
02/21/2017
Restricted stock vesting under a registered plan
Issuer
N
205
02/21/2017
Services Rendered
Common
01/25/2018
Restricted stock vesting under a registered plan
Issuer
N
1697
01/25/2018
Services Rendered
Common
01/16/2019
Restricted stock vesting under a registered plan
Issuer
N
2197
01/16/2019
Services Rendered
Common
01/13/2020
Restricted stock vesting under a registered plan
Issuer
N
1718
01/13/2020
Services Rendered
Common
01/14/2021
Restricted stock vesting under a registered plan
Issuer
N
3015
01/14/2021
Services Rendered
Common
01/13/2022
Restricted stock vesting under a registered plan
Issuer
N
4769
01/13/2022
Services Rendered
Common
01/13/2023
Restricted stock vesting under a registered plan
Issuer
N
5046
01/13/2023
Services Rendered
Common
01/30/2024
Restricted stock vesting under a registered plan
Issuer
N
6088
01/30/2024
Services Rendered
Y
11/29/2024
/s/ Robert Johnson TRUSTEE