Distance From Ashinoko Heliport to Siem Reap International Airport

The distance from Ashinoko Heliport () to Siem Reap International Airport (REP) is 2656 miles or 4273 kilometers or 2306 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 Hakone ( Japan ) to Siem Reap ( Cambodia )?

A one-way nonstop (direct) flight between Hakone and Siem Reap takes around 6 hours 6 minutes.

Estimated flight time from Ashinoko Heliport, Hakone, Japan to Siem Reap International Airport, Siem Reap, Cambodia is 6 hours 6 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		4273 km
Statute Miles		2656 miles
Nautical Miles		2306 nm
Avg. Time of Flight		6 hours 6 minutes

Ashinoko Heliport to Siem Reap International Airport Flight Route Map - to REP Flight Path

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

Click to see flight route on Google Map between Hakone, Japan and Siem Reap, Cambodia. .

Nonstop flight route between Hakone, Japan and Siem Reap, Cambodia.

Time Difference Between the Airports • - REP

Time difference between Hakone (Japan) and Siem Reap (Cambodia) is 2 Hours.
Siem Reap time is 2 Hours behind Hakone.

Location	Local Time
Hakone (Japan)	2026-05-05, 04:33:57 JST
Siem Reap (Cambodia)	2026-05-05, 02:33:57 +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

Ashinoko Heliport ( / ) Hakone, Japan

Destination

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