FlyerTalk Forums - View Single Post - Using points for upgrade, but flying on different loyalty
Old Jul 5, 2018 | 9:50 am
  #10  
MSPeconomist
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Yes, details matter, especially for this question as the miles or points of *most* partners cannot be used to upgrade a DL flight, with some exceptions for FULL FARE COACH tickets (generally Y class) through the SkyTeam upgrade awards program (but not all SkyTeam members participate in this).
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