Distance From Siem Reap International Airport to Naha Airport / JASDF Naha Air Base, REP - OKA Distance

The distance from Siem Reap International Airport (REP) to Naha Airport / JASDF Naha Air Base (OKA) is 1779 miles or 2862 kilometers or 1545 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 Siem Reap ( Cambodia ) to Naha ( Japan )?

A one-way nonstop (direct) flight between Siem Reap and Naha takes around 4 hours 5 minutes.

Estimated flight time from Siem Reap International Airport, Siem Reap, Cambodia to Naha Airport / JASDF Naha Air Base, Naha, Japan is 4 hours 5 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 - OKA

Kilometers		2862 km
Statute Miles		1779 miles
Nautical Miles		1545 nm
Avg. Time of Flight		4 hours 5 minutes

Siem Reap International Airport to Naha Airport / JASDF Naha Air Base Flight Route Map - REP to OKA Flight Path

Location of Siem Reap International Airport & Naha Airport / JASDF Naha Air Base is given below.
Click the map to view Siem Reap to Naha nonstop flight path and travel direction.

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

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

Time Difference Between the Airports • REP - OKA

Time difference between Siem Reap (Cambodia) and Naha (Japan) is 2 Hours.
Naha time is 2 Hours ahead of Siem Reap.

Location	Local Time
Siem Reap (Cambodia)	2025-12-16, 19:56:50 +07
Naha (Japan)	2025-12-16, 21:56:50 JST

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

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

Destination

Naha Airport / JASDF Naha Air Base (OKA / ROAH) Naha, Japan