content: <?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>0001933670</cik>
            <ccc>XXXXXXXX</ccc>
          </filerCredentials>
        </filer>
        <liveTestFlag>LIVE</liveTestFlag>
  
  
  
      </filerInfo>
    </headerData>
    <formData>
      <issuerInfo>
        <issuerCik>0000701374</issuerCik>
        <issuerName>Six Flags Entertainment Corp</issuerName>
        <secFileNumber>001-13703</secFileNumber>
        <issuerAddress>
          <com:street1>1000 BALLPARK WAY SUITE 400</com:street1>
          <com:city>ARLINGTON</com:city>
          <com:stateOrCountry>TX</com:stateOrCountry>
          <com:zipCode>76011</com:zipCode>
        </issuerAddress>
        <issuerContactPhone>972 595-5000</issuerContactPhone>
        <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>Williams-Ramey Aimee</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
        <relationshipsToIssuer>
          <relationshipToIssuer>Former 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>11630</noOfUnitsSold>
        <aggregateMarketValue>284357.03</aggregateMarketValue>
        <noOfUnitsOutstanding>83519692</noOfUnitsOutstanding>
        <approxSaleDate>09/08/2023</approxSaleDate>
        <securitiesExchangeName>NYSE</securitiesExchangeName>
      </securitiesInformation>
      <securitiesToBeSold>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <acquiredDate>06/13/2023</acquiredDate>
        <natureOfAcquisitionTransaction>Restricted Stock Vesting</natureOfAcquisitionTransaction>
        <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
        <isGiftTransaction>N</isGiftTransaction>
        <amountOfSecuritiesAcquired>4044</amountOfSecuritiesAcquired>
        <paymentDate>06/13/2023</paymentDate>
        <natureOfPayment>Compensation</natureOfPayment>
      </securitiesToBeSold>
      <securitiesToBeSold>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <acquiredDate>08/11/2023</acquiredDate>
        <natureOfAcquisitionTransaction>Restricted Stock Vesting</natureOfAcquisitionTransaction>
        <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
        <isGiftTransaction>N</isGiftTransaction>
        <amountOfSecuritiesAcquired>7586</amountOfSecuritiesAcquired>
        <paymentDate>08/11/2023</paymentDate>
        <natureOfPayment>Compensation</natureOfPayment>
      </securitiesToBeSold>
      <nothingToReportFlagOnSecuritiesSoldInPast3Months>Y</nothingToReportFlagOnSecuritiesSoldInPast3Months>
      <noticeSignature>
        <noticeDate>09/08/2023</noticeDate>
        <signature>/s/ Gerardo Ibarra-Munoz, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Aimee Williams-Ramey</signature>
      </noticeSignature>
    </formData>
  </edgarSubmission>
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text: 144
  0001933670
  XXXXXXXX
  LIVE
  0000701374
  Six Flags Entertainment Corp
  001-13703
  1000 BALLPARK WAY SUITE 400
  ARLINGTON
  TX
  76011
  972 595-5000
  Williams-Ramey Aimee
  Former Officer
  Common
  Fidelity Brokerage Services LLC
  900 Salem St
  Smithfield
  RI
  02917
  11630
  284357.03
  83519692
  09/08/2023
  NYSE
  Common
  06/13/2023
  Restricted Stock Vesting
  Issuer
  N
  4044
  06/13/2023
  Compensation
  Common
  08/11/2023
  Restricted Stock Vesting
  Issuer
  N
  7586
  08/11/2023
  Compensation
  Y
  09/08/2023
  /s/ Gerardo Ibarra-Munoz, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Aimee Williams-Ramey