Delta SFO terminal in San Francisco International Airport’s Terminal 1 is where Delta Airlines is based (SFO). This terminal is also known as the Harvey Milk Terminal, after the groundbreaking LGBTQ rights advocate and San Francisco city supervisor who was slain in 1978. Domestic and international flights are operated by Delta Airlines out of Terminal 1 at SFO. The location of the Delta Airlines baggage claim may be found on the monitors in the baggage claim area when arriving at SFO. Delta SFO terminal.