When Awaiting Upgrade, Check In at T-24 or Later?
Looks like any complimentary upgrade that comes thorough for my Saturday flights may do so after T-24. So to maximize chances, is it best to wait to check-in until the last minute, or conversely check in right at T-24? Is there still some unpublished opportunity at T-4 to jump the queue?
AND, when turning around in 4 hours, does AA check you in for the entire round trip at one time?
Thanks....