Chengdu Shuangliu International Airport (IATA: CTU, ICAO: ZUUU) is the major international airport serving Chengdu, the capital of China's Sichuan Province. Located about 16 kilometres (10 mi) southwest of downtown Chengdu to the north of Shuangliu District, Shuangliu airport is an important aviation hub to Western China. Shuangliu Airport is one of the two core hubs for Air China, together with Beijing, as well as the main hub and headquarters for Sichuan Airlines and Chengdu Airlines. China Eastern Airlines, Shenzhen Airlines, Lucky Air and Tibet Airlines also have bases at Shuangliu Airport. Shuangliu Airport handled 42.2 million passengers in 2015. It was among world's top 30 busiest airport in 2015, the 4th busiest in mainland China, and the busiest in western and central China. It was also the 5th busiest airport in terms of cargo traffic in China for 2013. Chengdu Shuangliu International Airport becomes the 4th busiest airport in China and the 5th busiest one in Greater China by 2015. This model is created mainly for X-Plane flight simulator.