Nanyuan Air Base

Beijing Nanyuan Airport was a military airbase and a secondary commercial airport of Beijing. Located in Fengtai District, 3 kilometres south of the 4th Ring Road and 13 km from Tiananmen Square, Nanyuan Airport was first opened in 1910, making it the oldest airport in China. It was the main hub of China United Airlines, which was also the airport's sole airline.Nanyuan Airport ceased civil operations on 25 September 2019, after all commercial passenger flights were moved to the newly opened Beijing Daxing International Airport. It remained operational as a People's Liberation Army Air Force military base until 30 September 2019, when the Beijing Nanjiao Airport opened.