The airline joined Star Alliance in 2007. In 2017, the airline carried 102 million domestic and international passengers with an average load factor of 81%. Air China's flight operations are based primarily at Beijing Capital International Airport. Air China's headquarters are in Shunyi District, Beijing. China International Airlines, Company Limited by SharesĪir China Limited ( Chinese: 中国国际航空公司) is the flag carrier of the People's Republic of China and one of the 'Big Three' mainland Chinese airlines (alongside China Southern Airlines and China Eastern Airlines).