Chengdu Shuangliu International Airport — Chengdu (Shuangliu), China

For decades the dominant air hub of southwestern China, Chengdu Shuangliu International Airport, known by its code CTU, anchors operations for Sichuan Airlines and a major Air China regional presence across twin runways and paired terminals. The opening of the newer Chengdu Tianfu International Airport in 2021 redistributed some traffic, but Shuangliu continues to handle enormous passenger volumes tied to Sichuan's dense population and Chengdu's status as a technology and manufacturing center. International routes reach across Asia and toward Europe, while domestic links blanket the country. Visitors frequently use the airport as their entry point before touring the city's panda breeding facilities, teahouses, and the nearby Leshan Giant Buddha, cementing Chengdu's reputation as a major tourism and business destination in China's interior.