Originally Posted by
canadiancow
I would be very surprised if they weren't prioritized by cabin, then status. So if no one in P+ had a request in, you might see no-status opups to J, even with Y pax on the upgrade list.
But that wasn't the case here.
I agree with you on everything else.
I think, if Y is oversold and P+ is at capacity, they would probably op-up from P+ and then op-up from Y. That was definitely the way it worked when it was Y/J/F -- no double-upgrades. I agree completely that if P+ is oversold and Y is not, they will clear the oversale by op-up form P+ before they would upgrade anyone from the Y list.