Agreed. Do a search on FT, or call to book the ticket. Also, they has to be P availability (I think P, I know it's not R, could be F).
I've had BBB and B3B's auto ug'd, and a handful of Y's NOT ug'd.
Best advice: Your mileage might vary
Originally Posted by BallyLoser
Yes, there is one Y fare that is not eligible for this benefit. I have also as a PE purchased a B fare and been instantly upgraded.