Ranong Airport (IATA: UNN, ICAO: VTSR) is in Ratchakrut subdistrict, Mueang Ranong district, Ranong province in southern 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 (1089 m), 6 km from the airport.