China Northern Airlines (simplified Chinese: 中国北方航空; pinyin: Zhōngguó Běifāng Hángkōng), was an airline headquartered on the grounds of Dongta Airport, Dadong District, Shenyang, Liaoning Province, People's Republic of China. Besides Shenyang, it also had three hubs at Harbin, Changchun and Sanya. It was one of six major airline corporations that were formed as a result of the break up of CAAC's airline operations. It initially operated a fleet of Airbus A300, McDonnell-Douglas MD-80, MD-90 and, later, Airbus A321 aircraft. It operated predominantly domestic destinations and also to North Korea, South Korea and Japan.