Anshan Teng'ao Airport (IATA: AOG, ICAO: ZYAS), also called Anshan Air Base is a civil-military airport serving the city of Anshan in Liaoning Province, and a People's Liberation Army Air Force (PLAAF) installation in the Northern Theater Command Air Force. It is located in the town of Teng'ao, 11.8 km southwest of the city center. The airport maintains regular commercial flights to a handful of major Chinese cities, including Beijing, Shanghai, Nanjing, Chengdu, and Guangzhou. The airport also serves as the headquarters of the 1st Fighter Brigade which operates Chengdu J-20 stealth fighters. Commercial flights began in 1987, ceased in 2002, and resumed in April 2011 with a single route to Beijing.