On Tuesday American Airlines moved operations in San Francisco to the Harvey Milk Terminal, B side of terminal 1. This puts all of American Airlines in one terminal at the airport, instead of having the old US Airways gates a long walk away.
The new ticket counter location is between doors 3 and 4 of the terminal. Their gates are B22 – B27, which despite the move doesn’t give them room for growth. The opening date for the new Admirals Club, across from gate B13, hasn’t yet been announced.