Originally Posted by
scolbath
Can you participate in AUP upgrades if your BA flight is ticketed on a codeshare, such as AA? In other words, does the ticket stock matter?
Yes you cam, provided it is a public fare. Even this may have changed recently since I see there is a new module on FLY for AUP (new in terms of payment process, not sure if new in terms of fare reconstruction). In the past the only certain non BA private fares were excluded from AUP (e.g. travel trade special fares). If it's AA, who ticket overwhelmingly into public fares, I can't see a problem.