FlyerTalk Forums - View Single Post - Checking in just outside the 24 hour window
Old Nov 27, 2015 | 9:22 am
  #3  
JDiver
Moderator: American AAdvantage
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Join Date: May 2000
Location: NorCal - SMF area
Programs: AA LT EXP; HH LT Diamond, Maître-plongeur des Muccis
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Originally Posted by swag
...
Check in time doesn't matter for much anymore, but I think it's still the tie-break for standby lists, so maybe this tidbit will be useful for someone planning to do a voluntary standby (or fearing weather cancellations).

AFAIK, check-in time does not affect upgrades processing.
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