Originally Posted by
Kacee
The quirk where elites are offered buy-ups to Y/B/M booking into PN rather than the often considerably cheaper P or A was supposed to have been fixed long ago per UA Insider. Obviously that never happened.
Yeah, the re-fare buyup seems to always prefer Y/B/M over any premium fare, and it's anyone's guess what it marks to when that's not available. Every great once in a while it's the correct price, but it's pretty rare.