Ranong Airport (IATA: UNN, ICAO: VTSR) is an airport serving Ranong, Thailand. Ranong airport serves the province of Ranong in the southern part of the country, it is located 500 km from Bangkok. The airport is located in a flat area at an altitude of 17 m above sea level, from the east there is a mountain range, between it and the airport territory there is highway number 4. The highest point of this area is Mount Khao Nom Sao, 6 kilometers from the airport