Distance From C 821 Heliport to Siem Reap International Airport

The distance from C 821 Heliport () to Siem Reap International Airport (REP) is 2187 miles or 3520 kilometers or 1900 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 Wonhyo-san Mt. ( South Korea ) to Siem Reap ( Cambodia )?

A one-way nonstop (direct) flight between Wonhyo-san Mt. and Siem Reap takes around 5 hours 1 minutes.

Estimated flight time from C 821 Heliport, Wonhyo-san Mt., South Korea to Siem Reap International Airport, Siem Reap, Cambodia is 5 hours 1 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		3520 km
Statute Miles		2187 miles
Nautical Miles		1900 nm
Avg. Time of Flight		5 hours 1 minutes

C 821 Heliport to Siem Reap International Airport Flight Route Map - to REP Flight Path

Location of C 821 Heliport & Siem Reap International Airport is given below.
Click the map to view Wonhyo-san Mt. to Siem Reap nonstop flight path and travel direction.

Click to see flight route on Google Map between Wonhyo-san Mt., South Korea and Siem Reap, Cambodia. .

Nonstop flight route between Wonhyo-san Mt., South Korea and Siem Reap, Cambodia.

Time Difference Between the Airports • - REP

Time difference between Wonhyo-san Mt. (South Korea) and Siem Reap (Cambodia) is 2 Hours.
Siem Reap time is 2 Hours behind Wonhyo-san Mt..

Location	Local Time
Wonhyo-san Mt. (South Korea)	2025-12-15, 14:06:40 KST
Siem Reap (Cambodia)	2025-12-15, 12:06:40 +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

C 821 Heliport ( / ) Wonhyo-san Mt., South Korea

Destination

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