Originally Posted by
SFOPhD
The problem with the Centurion lounge network is that the one in the airport you use might not be convenient for flying AA. For example, the new one in SFO will be in terminal 3, which is just not worth the trouble of passing through security twice since AA flies out of terminal 2.
You can get to every terminal at SFO behind security, so not a real big deal. I was surprised by several airports where you could't - DCA is one, and I think LGA may have been the other. I had a connection and needed to go outside into the freezing weather to take a bus. I no longer carry a jacket with me because I have left them on airplanes all over the world.