Originally Posted by
Cloudship
I am pretty new to AA, and only have a small number of miles. I was looking to upgrade on a flight from SFO to JFK. Are all the direct flights on this route 3 class? I can see some have C listed but 0 seats available, some only have A listed with available seats. However, on these flights to upgrade from economy you need C inventory, correct?
Yes. Usually C opens up on the day of the flight. You can wait-list for an upgrade.
A is a discount First (not Business) fare.