San Francisco International Airport

San Francisco International Airport  is an international airport near San Bruno and Millbrae in unincorporated San Mateo County. It is 13 miles (21 km) south of downtown San Francisco, California, It has flights to points throughout North America and is a major gateway to Europe and Asia.

SFO is the largest airport in the Bay Area and the second busiest in California, after LAX.  It is the fifth-largest hub for United Airlines and functions as United’s primary transpacific gateway. It also serves as a secondary hub for Alaska Airlines. It is a major maintenance hub for United Airlines, and houses the Louis A. Turpen Aviation Museum and Library.

The airport is owned and operated by the City and County of San Francisco, despite it being located in San Mateo County. Between 1999 and 2004, the San Francisco Airport Commission operated city-owned SFO Enterprises, Inc., to oversee its business purchases and operations of ventures.