<?xml version="1.0" encoding="UTF-8"?><edgarSubmission xmlns="http://www.sec.gov/edgar/ownership" xmlns:com="http://www.sec.gov/edgar/common">
  <headerData>
    <submissionType>144</submissionType>
    <filerInfo>
      <filer>
        <filerCredentials>
          <cik>0001850489</cik>
          <ccc>XXXXXXXX</ccc>
        </filerCredentials>
      </filer>
      <liveTestFlag>LIVE</liveTestFlag>



    </filerInfo>
  </headerData>
  <formData>
    <issuerInfo>
      <issuerCik>0001743907</issuerCik>
      <issuerName>Sun Country Airlines Holdings, Inc.</issuerName>
      <secFileNumber>001-40217</secFileNumber>
      <issuerAddress>
        <com:street1>2005 CARGO ROAD</com:street1>
        <com:city>MINNEAPOLIS</com:city>
        <com:stateOrCountry>MN</com:stateOrCountry>
        <com:zipCode>55450</com:zipCode>
      </issuerAddress>
      <issuerContactPhone>651-681-3900</issuerContactPhone>
      <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>Whitney Grant</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
      <relationshipsToIssuer>
        <relationshipToIssuer>Officer</relationshipToIssuer>
      </relationshipsToIssuer>
    </issuerInfo>
    <securitiesInformation>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <brokerOrMarketmakerDetails>
        <name>Fidelity Brokerage Services LLC</name>
        <address>
          <com:street1>900 Salem St</com:street1>
          <com:city>Smithfield</com:city>
          <com:stateOrCountry>RI</com:stateOrCountry>
          <com:zipCode>02917</com:zipCode>
        </address>
      </brokerOrMarketmakerDetails>
      <noOfUnitsSold>10358</noOfUnitsSold>
      <aggregateMarketValue>171010.58</aggregateMarketValue>
      <noOfUnitsOutstanding>56012229</noOfUnitsOutstanding>
      <approxSaleDate>08/07/2023</approxSaleDate>
      <securitiesExchangeName>NASDAQ</securitiesExchangeName>
    </securitiesInformation>
    <securitiesToBeSold>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <acquiredDate>08/07/2023</acquiredDate>
      <natureOfAcquisitionTransaction>Options Granted - 07/31/2019</natureOfAcquisitionTransaction>
      <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
      <isGiftTransaction>N</isGiftTransaction>
      <amountOfSecuritiesAcquired>6729</amountOfSecuritiesAcquired>
      <paymentDate>08/07/2023</paymentDate>
      <natureOfPayment>Cash</natureOfPayment>
    </securitiesToBeSold>
    <securitiesToBeSold>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <acquiredDate>06/30/2023</acquiredDate>
      <natureOfAcquisitionTransaction>Restricted Stock Vesting</natureOfAcquisitionTransaction>
      <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
      <isGiftTransaction>N</isGiftTransaction>
      <amountOfSecuritiesAcquired>892</amountOfSecuritiesAcquired>
      <paymentDate>06/30/2023</paymentDate>
      <natureOfPayment>Compensation</natureOfPayment>
    </securitiesToBeSold>
    <securitiesToBeSold>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <acquiredDate>03/31/2023</acquiredDate>
      <natureOfAcquisitionTransaction>Restricted Stock Vesting</natureOfAcquisitionTransaction>
      <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
      <isGiftTransaction>N</isGiftTransaction>
      <amountOfSecuritiesAcquired>885</amountOfSecuritiesAcquired>
      <paymentDate>03/31/2023</paymentDate>
      <natureOfPayment>Compensation</natureOfPayment>
    </securitiesToBeSold>
    <securitiesToBeSold>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <acquiredDate>01/03/2023</acquiredDate>
      <natureOfAcquisitionTransaction>Restricted Stock Vesting</natureOfAcquisitionTransaction>
      <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
      <isGiftTransaction>N</isGiftTransaction>
      <amountOfSecuritiesAcquired>249</amountOfSecuritiesAcquired>
      <paymentDate>01/03/2023</paymentDate>
      <natureOfPayment>Compensation</natureOfPayment>
    </securitiesToBeSold>
    <securitiesToBeSold>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <acquiredDate>09/30/2022</acquiredDate>
      <natureOfAcquisitionTransaction>Restricted Stock Vesting</natureOfAcquisitionTransaction>
      <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
      <isGiftTransaction>N</isGiftTransaction>
      <amountOfSecuritiesAcquired>266</amountOfSecuritiesAcquired>
      <paymentDate>09/30/2022</paymentDate>
      <natureOfPayment>Compensation</natureOfPayment>
    </securitiesToBeSold>
    <securitiesToBeSold>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <acquiredDate>12/31/2020</acquiredDate>
      <natureOfAcquisitionTransaction>IPO Shares</natureOfAcquisitionTransaction>
      <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
      <isGiftTransaction>N</isGiftTransaction>
      <amountOfSecuritiesAcquired>1337</amountOfSecuritiesAcquired>
      <paymentDate>12/31/2020</paymentDate>
      <natureOfPayment>Cash</natureOfPayment>
    </securitiesToBeSold>
    <nothingToReportFlagOnSecuritiesSoldInPast3Months>N</nothingToReportFlagOnSecuritiesSoldInPast3Months>
    <securitiesSoldInPast3Months>
      <sellerDetails>
        <name>Grant N. Whitney</name>
        <address>
          <com:street1>2005 Cargo Road</com:street1>
          <com:city>Minneapolis</com:city>
          <com:stateOrCountry>MN</com:stateOrCountry>
          <com:zipCode>55450</com:zipCode>
        </address>
      </sellerDetails>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <saleDate>07/03/2023</saleDate>
      <amountOfSecuritiesSold>396</amountOfSecuritiesSold>
      <grossProceeds>8882.48</grossProceeds>
    </securitiesSoldInPast3Months>
    <noticeSignature>
      <noticeDate>08/07/2023</noticeDate>
      <planAdoptionDates>
        <planAdoptionDate>05/05/2023</planAdoptionDate>
      </planAdoptionDates>
      <signature>/s/Wade Moss, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Grant N Whitney</signature>
    </noticeSignature>
  </formData>
</edgarSubmission>
[{"type": "144", "sequence": "1", "filename": "primary_doc.xml", "secsgml_size_bytes": 6189}]
144
0001850489
XXXXXXXX
LIVE
0001743907
Sun Country Airlines Holdings, Inc.
001-40217
2005 CARGO ROAD
MINNEAPOLIS
MN
55450
651-681-3900
Whitney Grant
Officer
Common
Fidelity Brokerage Services LLC
900 Salem St
Smithfield
RI
02917
10358
171010.58
56012229
08/07/2023
NASDAQ
Common
08/07/2023
Options Granted - 07/31/2019
Issuer
N
6729
08/07/2023
Cash
Common
06/30/2023
Restricted Stock Vesting
Issuer
N
892
06/30/2023
Compensation
Common
03/31/2023
Restricted Stock Vesting
Issuer
N
885
03/31/2023
Compensation
Common
01/03/2023
Restricted Stock Vesting
Issuer
N
249
01/03/2023
Compensation
Common
09/30/2022
Restricted Stock Vesting
Issuer
N
266
09/30/2022
Compensation
Common
12/31/2020
IPO Shares
Issuer
N
1337
12/31/2020
Cash
N
Grant N. Whitney
2005 Cargo Road
Minneapolis
MN
55450
Common
07/03/2023
396
8882.48
08/07/2023
05/05/2023
/s/Wade Moss, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Grant N Whitney