Distance From Mountain Airport to Siem Reap International Airport

The distance from Mountain Airport () to Siem Reap International Airport (REP) is 1559 miles or 2509 kilometers or 1354 nautical miles.

The distance shown below is direct flight distance between airports. Straight-line distance does not account for the surface between the two points. It is the distance a bird or airplane would travel between the two points when flying above the surface. The straight line distance is the direct route between two points, regardless of whether or not there are roads that connect them.

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How long does it take to travel from Mountain ( Nepal ) to Siem Reap ( Cambodia )?

A one-way nonstop (direct) flight between Mountain and Siem Reap takes around 3 hours 35 minutes.

Estimated flight time from Mountain Airport, Mountain, Nepal to Siem Reap International Airport, Siem Reap, Cambodia is 3 hours 35 minutes under avarage conditions. Your actual flying time may vary depending on wind direction/speed or weather conditions. This calculation does not include the departure and landing times of the aircraft. In addition, it does not cover the person identity check, ticket check-in and baggage collection times at the airport.

Travel Distance Between the Airports • - REP

Kilometers		2509 km
Statute Miles		1559 miles
Nautical Miles		1354 nm
Avg. Time of Flight		3 hours 35 minutes

Mountain Airport to Siem Reap International Airport Flight Route Map - to REP Flight Path

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

Click to see flight route on Google Map between Mountain, Nepal and Siem Reap, Cambodia. .

Nonstop flight route between Mountain, Nepal and Siem Reap, Cambodia.

Time Difference Between the Airports • - REP

Time difference between Mountain (Nepal) and Siem Reap (Cambodia) is 1 Hours 15 Minutes.
Siem Reap time is 1 Hours 15 Minutes ahead of Mountain.

Location	Local Time
Mountain (Nepal)	2026-11-04, 09:17:02 +0545
Siem Reap (Cambodia)	2026-11-04, 10:32:02 +07

Why should you arrive 3 hours before international flight? Flyers who are traveling to an international destination should arrive at the airport earlier than domestic flyers. This is because international flights can have additional check-in requirements, like passport verification, that need to be completed before you receive your boarding pass.

Origin

Mountain Airport ( / ) Mountain, Nepal

Destination

Siem Reap International Airport (REP / VDSR) Siem Reap, Cambodia