Originally Posted by
sjbsf
Can anyone tell me what fare class needs to be available on AA to use the one time international upgrade from Alaska? i see a flight with A class available on expert flyer....
For economy to business, you need upgrade-C (different from revenue-C).
On EF, search for awards and upgrades (not flight availability) and select C. Search one segment at a time only; the numbers they return for connecting flights are not useful. If you see C7 you are almost certainly doing it wrong.