FlyerTalk Forums - View Single Post - Is there a method to the upgrade seating algorithm?
Old Apr 17, 2013 | 1:50 pm
  #24  
howl0007
 
Join Date: Jan 2009
Location: ORD
Programs: UA 1K, AA EXP, Starwood Plat
Posts: 188
Originally Posted by channa
Sort of. CPU processes in a checkerboard:

1A, 1E
2B, 2F
3A, 3E

and so on.

At the gate, all standby lists are cleared front to back with no regard to preference or E+, IME. So First will fill up straight front to back, left to right.
This seems to mesh exactly with what I've been seeing. Not that I clear CPUs at the 1K window much anymore, but when I do it always seems to throw me into row 1 which I really don't like because I'm not a fan of FC bulkhead seats with restricted legroom.
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