Originally Posted by
eponymous_coward
Actually, if you "add yourself to the list", what may happen is that the ticket will be voided and things will be screwed up at the airport. AA and DL don't consider AS U class to be a valid booking class and you can screw up your ticket.
The only safe place to get on the upgrade list is at the airport.
Interesting. Ive done it plenty of times without issues. Am I just gambling or what ?