Originally Posted by
koopas
I wonder if it's even worth trying to apply at GUC at the airport...and who the best person to speak to would be. Sky Club agent? Check-in agent? I doubt the gate agent would want to bother with it.
Whether it is worth it or not depends on the loads. If it looks like there will be seats, you want to try to get on the list ASAP. So I would talk to each DL agent along the way, starting at check-in, then SkyClub, and finally the gate (if seats are still showing available).