Pudong International Airport can fly international routes. Hongqiao International Airport used to have international routes, but now it may have completed the mission of international routes, mainly flying to domestic routes. But it is still an alternate airport in Pudong. There are two civil airports in Shanghai, Pudong and Hongqiao. Dachang is a military airport. Longhua Airport will become a special airport for helicopters (to rescue and train helicopter pilots). There used to be Luwan airport, which was left by the Kuomintang at that time, but now it is gone.