what airport is sfo

SFO is the IATA code for San Francisco International Airport. It is an international airport located in an unincorporated area of San Mateo County, California, United States, about 13 miles (21 km) south of San Francisco. It is the largest airport in the San Francisco Bay Area and the second-busiest in California, after Los Angeles International Airport (LAX) . SFO offers nonstop flights to Asia, South Pacific, Europe, Canada, Mexico, and the US.