Boeing Field, officially King County International Airport (IATA: BFI, ICAO: KBFI, FAA LID: BFI), is a public airport owned and operated by King County, five miles south of downtown Seattle, Washington. The airport is sometimes referred to as KCIA (King County International Airport), but it is not the airport identifier. The airport has scheduled passenger service operated by Kenmore Air, a commuter air carrier, and was being served by JSX with regional jet flights. It is also a hub for UPS Airlines. It is also used by other cargo airlines and general aviation aircraft.