Originally Posted by
goldelite8
If upgraded to J on a premium transcon route, is there a chance I will receive an opportunity to buy up to Flagship First in the app or at check in? Any idea what these have been going for when the flight is very empty?
Yes, but receiving the buy-up offer in this instance is very hit-or-miss in my experience. Twice last year I received an F upgrade offer at check-in (IIRC, around $295) on an already upgraded ticket (using BXP1s) to J. Other times, there was no upgrade offer (twice even when F was empty, Y was oversold, and I was ultimately OPUP'd to F on an upgraded J ticket). So, YMMV.
-FlyerBeek