Quick buy up question: On the list for upgrade using a Mileage Plus Award on an SFO-EWR flight - 6 seats left, I am 9 on the list so most likely not going to clear. I usually get a buy up offer on the app for this flight, but there isn't one. Could it be because I'm on the upgrade list? Or perhaps they just aren't offering. Curious.
Thanks for any help or opinions!