I apologize for digging up an old thread, but I've had trouble finding an answer to a similar but reverse question regarding standby from 3 Cabin J to 2 Cabin F.
For example, on JFK-SFO, there are several 3 cabin and 2 cabin flights. 2 Cabins book Y/F (not Y/J like Caribbean 2 cabins, for example) and the 3 cabins book Y/J/F, of course. If I'm booked into J on a 3 cabin, and try to standby for an earlier 2 cabin flight, will I be able to standby into F on the 2 cabin?
Of note, I'm looking at booking an award. So trying to figure out if I can stand by from U on a 3 cabin into (hopefully) into a 2 cabin's F, rather than Y.
Thanks for any insight and happy happy holidays!