Very hypothetically.. If I was to buy the cheapest fare class on AA from say ORD to LAX, on a tuesday. and the flight was full, is it likely I could be offered an upgrade from the self service KIOSK to First class for a fee ?
Ie upgrade from cheapest Q class fare to F ?
If you have experience with this, I would love to hear from you ... How full it was, how much extra you were charged ?
Many thanks for reading