Xining Caojiabao International Airport(IATA: XNN, ICAO: ZLXN), also called Caojiapu Airport, is an airport serving Xining, the capital of Qinghai Province, China. It is located in Huzhu County, Haidong, on the Tibetan Plateau about 30 kilometres (19mi) east of downtown Xining. The airport began operation in 1991, and in October 2011 a new 3,800 meter long runway was built to replace the old one.[3][4]
The first airport of Xining was located 17km (11mi) west of the current airport near the town of Lejiawan. Built on orders of warlord Ma Bufang in 1931,[5] it started limited civilian use in 1933. In 1957, the runway was expanded to 2,600 metres (8,500ft) and more facilities were added. The only regular route was between Xining and Lanzhou with less than 1,000 passengers annually travelling through the airport. Later, a once-a-week route to Beijing would be added.[6]
In 1975, plans were made to relocate the airport, as the Lejiawan Airport was limited by a one-way gravel runway. Construction of Caojiabao airport was approved by the State Council on 17 May 1985 and started in 1989. The airport opened in December 1991. The site of the former airport is now a military base.[6]
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