China United Airlines Co., Ltd. (simplified Chinese: 中国联合航空公司; traditional Chinese: 中國聯合航空公司; pinyin: Zhōngguó Liánhé Hángkōng gōngsī) is a low-cost carrier and a subsidiary of China Eastern Airlines with its headquarters and main hub on the grounds of Beijing Daxing International Airport in Daxing District, Beijing, operating scheduled flights and charter services in co-operation with local enterprises out of Daxing Airport.