Originally Posted by
UAflyer93
In my experience on AA, a partner flight that had been upgraded w a cash upgrade will post with the new fare class. (E.g., I cash upgraded a BA operated flight purchased via ba.com from business to first at check in and it posted with the F multiplier).
I assume the same will happen with UA.
I wouldn’t be so quick to make that assumption. It’s entirely plausible for BA to have things set up differently than LH.
In fact, it wouldn’t surprise me at all if the behavior differed even between *A airlines: for example, LH upgrades could count while AC upgrades don’t. Or, it could be like the PQM bonus on UA today, which sometimes kicks in and sometimes doesn’t.