What is the flight distance between REP and USM?

Distance between Siem Reap Airport (REP) and Koh Samui Airport (USM) is 593 kilometers or 369 miles.

Distance From Siem Reap Airport to Koh Samui Airport (REP - USM Distance)

Q: How long is the flight from REP to USM?

Flight time from Siem Reap Airport, Siem Reap, Cambodia to Koh Samui Airport, Koh Samui, Thailand is 0 hours 44 minutes under avarage conditions.

Q: What is the time difference between Siem Reap, Cambodia and Koh Samui, Thailand?

Time difference between Siem Reap (Cambodia) and Koh Samui (Thailand) is 0 Hours. It is currently 11:56 in Siem Reap Airport (REP) and 11:56 in Koh Samui Airport (USM).

The flight distance from Siem Reap Airport (REP) to Koh Samui Airport (USM) is 369 miles. This is equivalent to 593 kilometers or 320 nautical miles. The distance shown below is the straight line distance (may be called as flying or air distance) or direct flight distance between airports.

593 kilometers is the distance from Siem Reap Airport, Cambodia to Koh Samui Airport, Thailand.

Flight Duration between Siem Reap, Cambodia and Koh Samui, Thailand

Estimated flight time from Siem Reap Airport, Siem Reap, Cambodia to Koh Samui Airport, Koh Samui, Thailand is 0 hours 44 minutes under avarage conditions. The flight time calculator assumes an average flight speed for a commercial airliner of 500 mph, which is equivalent to 805 km/hr or 434 knots. Your actual flying time may vary depending on wind speeds or weather conditions.

Time Difference Between the Airports • REP - USM

Time difference between Siem Reap (Cambodia) and Koh Samui (Thailand) is 0 Hours.
Current local time in Siem Reap is 2025-05-13, 11:56:44 +07 and time in Koh Samui is 2025-05-13, 11:56:44 +07.

Siem Reap Airport to Koh Samui Airport Flight Route Map - REP to USM Flight Path

Location of Siem Reap Airport & Koh Samui Airport is given below.
Click the map to view Siem Reap to Koh Samui nonstop flight path and travel direction.

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Click to see flight route on Google Map between Siem Reap, Cambodia and Koh Samui, Thailand. .

Nonstop flight route between Siem Reap, Cambodia and Koh Samui, Thailand.

Siem Reap Airport
City:	Siem Reap
Country:	Cambodia
IATA Code:	REP
ICAO Code:	VDSR
GPS Coordinates:	Latitude: N 13° 24' 38.5'' Longitude: E 103° 48' 46.8''
Current time:	2025-05-13, 11:56:44 +07
Current weather:	Siem Reap Airport 15 day weather forecast

Koh Samui Airport
City:	Koh Samui
Country:	Thailand
IATA Code:	USM
ICAO Code:	-
GPS Coordinates:	Latitude: N 9° 32' 52'' Longitude: E 100° 3' 43.2''
Current time:	2025-05-13, 11:56:44 +07
Current weather:	Koh Samui Airport 15 day weather forecast
Flights: