West Airlines Co. Ltd., operating as West Air, is a low-cost airline based in New North Zone, Chongqing, China, operating a scheduled passenger network to domestic and international destinations out of its hub, Chongqing Jiangbei International Airport. The company was established in March 2006 by its parent company Hainan Airlines, with the launch of scheduled services on 14 July 2010. The airline is one of the four founding members of the U-FLY Alliance.

Chongqing is a municipality in Southwestern China. Chongqing is one of the four direct-administered municipalities under the Central People's Government, along with Beijing, Shanghai, and Tianjin. It is the only directly administrated municipality located deep inland. The municipality covers a large geographical area roughly the size of Austria, which includes several disjunct urban areas in addition to Chongqing proper. Due to its classification, the municipality of Chongqing is the largest city proper in the world by area, though it does not have the largest urban area.