Kelly Field Annex (formerly Kelly Air Force Base) (IATA: SKF, ICAO: KSKF, FAA LID: SKF) is a United States Air Force facility located in San Antonio, Texas. In 2001, pursuant to BRAC action, the former Kelly AFB runway and land west of the runway became "Kelly Field Annex" and control of this reduced size installation was transferred to the adjacent Lackland Air Force Base, part of Joint Base San Antonio.