FlyerTalk Forums - View Single Post - Chance of upgrade on US flight from SFO to PIT
Old Aug 9, 2005 | 11:50 am
  #4  
phlwookie
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This thread has some lists of the fare codes. Generally the booking systems list the most expensive first and cheapest last.

In your example, they're willing to sell 9 or more seats in first, and a max of 5 in coach.
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