Map of terminals, boarding areas, and runways at San Francisco International Airport (KSFO/SFO). Simplified vector shapes extracted from FAA source PDF and colors added.
 T1  = Harvey Milk Terminal 1, with boarding area B
 T2  = Terminal 2, with boarding areas C and D
 T3  = Terminal 3, with boarding areas E and F
 IT  = International Terminal, with boarding areas A and G
PDF source file from FAA
Federal Aviation Administration