Distance From Walker Airport to Siem Reap International Airport

The distance from Walker Airport () to Siem Reap International Airport (REP) is 8536 miles or 13737 kilometers or 7413 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 Cooper ( United States ) to Siem Reap ( Cambodia )?

A one-way nonstop (direct) flight between Cooper and Siem Reap takes around 19 hours 37 minutes.

Estimated flight time from Walker Airport, Cooper, United States to Siem Reap International Airport, Siem Reap, Cambodia is 19 hours 37 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		13737 km
Statute Miles		8536 miles
Nautical Miles		7413 nm
Avg. Time of Flight		19 hours 37 minutes

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

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

Click to see flight route on Google Map between Cooper, United States and Siem Reap, Cambodia. .

Nonstop flight route between Cooper, United States and Siem Reap, Cambodia.

Time Difference Between the Airports • - REP

Time difference between Cooper (United States) and Siem Reap (Cambodia) is 12 Hours.
Siem Reap time is 12 Hours ahead of Cooper.

Location	Local Time
Cooper (United States)	2026-09-22, 18:52:55 CDT
Siem Reap (Cambodia)	2026-09-23, 06:52:55 +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

Walker Airport ( / 7MI7) Cooper, United States

Destination

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