Shenzhen Airlines
Chengdu Shuangliu International Airport is the 4th-busiest airport in mainland China. It was among the world's top 30 busiest airports in 2015, and the busiest in western and central China. It was also the fifth-busiest airport in terms of cargo traffic in China for 2013. Chengdu airport is the hub of Sichuan Airlines, Chengdu Airlines, Shenzhen Airlines, Tibet Airlines, China Southern Airlines, China Eastern Airlines, Lucky Air and Air China. Alongside Shangliu Airport, Chengdu Tianfu International Airport is under construction.