Samui International Airport (Thai: ท่าอากาศยานสมุย) (IATA: USM, ICAO: VTSM), also known as Ko Samui Airport or Koh Samui Airport, is a privately owned airport on the island of Ko Samui (Koh Samui) in Thailand. The airport is roughly 2 km north of the main city and largest resort centre on the island, Chaweng. It was built by Bangkok Airways. Construction began in 1982 and the airport was officially opened in April 1989.