AC now departs and arrives at SFO International Terminal. The check-in area is near to Terminal A at Aisle 12. If you are taking taxi or being driven to the airport, you stop at Door 1 - the first door after the ramp up. If you take BART, you have to walk from the station passing UA check-in area (Aisle 1) all the way to the other end. AC will use both Terminal A and G. Here is the run down. After 4pm, the flights will depart from Terminal G. I noticed on the board one flight will go to YVR and the later red eye will go to YYZ. The last two AC flights arriving in SFO will arrive at Terminal G. I believe one from YVR and one from YYZ. Therefore, the first two flights out from SFO the next day will depart from Terminal G. After those flights until 4pm, AC will use the gates at Terminal A. Confusing? Now I recall there is no *A lounge at Terminal A. I wonder which lounge AC will use. I forgot to ask the agent. (Sorry!). I remember there is NW lounge and BA lounge. Of course for Terminal G we have the Red Carpet Club. Unfortunately, the opening hours of Silverr Kris Lounge do not match with the departure of AC flights from Terminal G.