Xining Caojiapu Airport was built in 1931, is located in Qinghai Province, mutual aid county Gaozhai territory, 28 km from the city center. Xining Airport is the domestic 4E level airport, is an important transport hub of the Qinghai-Tibet Plateau and Qinghai Province, the main external ports, is China Eastern Airlines, Xiamen Airlines, Hainan Airlines base airport.