All three kinds of upgrades (EXP complimentary, EVIPs, stickers) are allowed on individual segments of AA flights (needs to be AA metal).
Originally Posted by
MileHigh
I'm confused: I've read upgrades on AA flights are permitted using 500 mile segments (and I assume eVIPs) but also read sectors alone cannot be upgraded.
Also what about AA EXP complimentary upgrades on AA domestic segments?