Originally Posted by
gemini573
I've also heard that if you book the AA flight numbers and hoping to get the op up, it won't happen.
I can't speak for revenue tickets, as those, when flying AA, were typically routed via Japan (though I have received an opup when on AA U class redemption!), but, when flying the competition (UA* operated by NH), I have been opuped to C class (from K class, 016 stock)