FlyerTalk Forums - View Single Post - Choosing Fare Class to increase chance for upgrades
Old Jan 7, 2018 | 8:44 pm
  #4  
IAH-OIL-TRASH
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Y, B, and M fares on CPUable routes are instant (sort of) upgrade economy fares.

Last edited by IAH-OIL-TRASH; Jan 7, 2018 at 9:36 pm
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