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Join Date: Jul 2002
Location: MCI
Programs: AA Gold 1MM, AS MVP, UA Silver, WN A-List, Marriott LT Titanium, HH Diamond
Posts: 52,575
Not traveling this year for Thanksgiving, but the Sunday afternoon/evening is about the busiest possible time to pick.
It's possible that the flights are more full than they look by the seatmap, but have been booked by non-elites who don't have access to seats yet.