Shanghai is one of the largest air transportation hubs in Asia. The city has two commercial airports: Shanghai Pudong International Airport and Shanghai Hongqiao International Airport. Pudong International Airport is the primary international airport, while Hongqiao International Airport mainly operates domestic flights with limited short-haul international flights. In 2018, Pudong International Airport served 74.0 million passengers and handled 3.8 million tons of cargo, making it the ninth-busiest airport by passenger volume and third-busiest airport by cargo volume. The same year, Hongqiao International Airport served 43.6 million passengers, making it the 19th-busiest airport by passenger volume.