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Thread: Is there a method to the upgrade seating algorithm?
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Old Apr 17, 2013 | 9:44 am
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channa
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Originally Posted by star_world
From what I've seen it's first available seat with an empty seat next to it (1A->1F, 2A->2F,...) and then in the same order after that from front to back if there are no seats that meet this criteria. Window / aisle preference is ignored.
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.

And coach will fill the same way. Even if you're on a wide open flight, they will fill up E+ first for no extra charge since the system can't start behind Row 21 for some reason.
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