To be sure there is no misunderstanding, Expedia does not promise a Fixed Flight redemption ticket on the carrier you prefer.
How about just tranferring your ThankyouPoints to AAdvantage miles? Can that be done? I've got way more ThankyouPoints than I need and i'm in the process of upgrading 12 Y round trip tickets to India from NYC using AA but I'm coming up about 60k short in my AA miles. I'll happily dump the ThankyouPoints into AA miles if possible, but I don't know that it is.
- SR