Sichuan Airlines Co., Ltd. (Chinese: 四川航空) is a Chinese airline based in Chengdu Shuangliu International Airport in Chengdu, Sichuan Province, and is the largest airline in western China,[2] operating mainly scheduled domestic and international flights out of Chengdu Shuangliu Airport, Chongqing Jiangbei International Airport and Kunming Changshui International Airport.