One of my domestic segments for a reward ticket had to be confirmed in coach with a waitlist for F. Be aware that your "waitlist" on your reward ticket will drop off 24 hrs prior to departure. You WILL NOT have any "priority" over those vying for their plat/gold/silver 5/3/1-day-prior elite upgrades. I'm a silver & still did not get upgraded that way, either, nor did my "reward ticket waitlist" automatically place me on the upgrade list. Bummer.....