Distance From Washburn Farm Airport to Siem Reap International Airport

The distance from Washburn Farm Airport () to Siem Reap International Airport (REP) is 8630 miles or 13888 kilometers or 7494 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 Grain Valley ( United States ) to Siem Reap ( Cambodia )?

A one-way nonstop (direct) flight between Grain Valley and Siem Reap takes around 19 hours 50 minutes.

Estimated flight time from Washburn Farm Airport, Grain Valley, United States to Siem Reap International Airport, Siem Reap, Cambodia is 19 hours 50 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		13888 km
Statute Miles		8630 miles
Nautical Miles		7494 nm
Avg. Time of Flight		19 hours 50 minutes

Washburn Farm Airport to Siem Reap International Airport Flight Route Map - to REP Flight Path

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

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

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

Time Difference Between the Airports • - REP

Time difference between Grain Valley (United States) and Siem Reap (Cambodia) is 11 Hours.
Siem Reap time is 11 Hours ahead of Grain Valley.

Location	Local Time
Grain Valley (United States)	2026-06-17, 11:45:13 EDT
Siem Reap (Cambodia)	2026-06-17, 22:45:13 +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

Washburn Farm Airport ( / 62MO) Grain Valley, United States

Destination

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