Distance From Robert F Swinnie Airport to Siem Reap International Airport, ADR - REP Distance

The distance from Robert F Swinnie Airport (ADR) to Siem Reap International Airport (REP) is 9191 miles or 14792 kilometers or 7982 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 Andrews ( United States ) to Siem Reap ( Cambodia )?

A one-way nonstop (direct) flight between Andrews and Siem Reap takes around 21 hours 7 minutes.

Estimated flight time from Robert F Swinnie Airport, Andrews, United States to Siem Reap International Airport, Siem Reap, Cambodia is 21 hours 7 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 • ADR - REP

Kilometers		14792 km
Statute Miles		9191 miles
Nautical Miles		7982 nm
Avg. Time of Flight		21 hours 7 minutes

Robert F Swinnie Airport to Siem Reap International Airport Flight Route Map - ADR to REP Flight Path

Location of Robert F Swinnie Airport & Siem Reap International Airport is given below.
Click the map to view Andrews to Siem Reap nonstop flight path and travel direction.

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

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

Time Difference Between the Airports • ADR - REP

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

Location	Local Time
Andrews (United States)	2025-12-05, 23:18:56 EST
Siem Reap (Cambodia)	2025-12-06, 11:18:56 +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

Robert F Swinnie Airport (ADR / KPHH) Andrews, United States

Destination

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