9 1.3 km. According to Baidu map, Dehong Airport is 9 1.3 km away from Ruili. Dehong mangshi Airport is a modern garden airport with national characteristics. It is located in mangshi Dam, Dehong Prefecture, 6.5 kilometers away from the urban area and 876 meters above sea level. The airport was built in 1937, and used to take off and land C46 fighters and C47 transport planes. After War of Resistance against Japanese Aggression's victory, it was grounded and abandoned.