Xining Caojiabao Airport 西宁曹家堡机场
（重定向自ZLXN）
Xining Caojiabao Airport (IATA: XNN, ICAO: ZLXN) is an airport serving Xining, capital of Qinghai Province, China. It is located in Huzhu County, Haidong, about 30 kilometres (19 mi) 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.