Originally Posted by
jsguyrus
Flew SEA-JFK today and about a quarter of F was available for U space at the gate which is super rare. Flying Saturday JFK-SFO and three days out only four F seats are full.
Good to know, this makes me feel better about upgrade odds on some upcoming SFO-JFK, they were still selling R fares when I booked and an upfare was pretty pricey.