Distance From Indian Mountain LRRS Airport to Siem Reap International Airport, UTO - REP Distance

The distance from Indian Mountain LRRS Airport (UTO) to Siem Reap International Airport (REP) is 5717 miles or 9201 kilometers or 4965 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 Utopia Creek ( United States ) to Siem Reap ( Cambodia )?

A one-way nonstop (direct) flight between Utopia Creek and Siem Reap takes around 13 hours 8 minutes.

Estimated flight time from Indian Mountain LRRS Airport, Utopia Creek, United States to Siem Reap International Airport, Siem Reap, Cambodia is 13 hours 8 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 • UTO - REP

Kilometers		9201 km
Statute Miles		5717 miles
Nautical Miles		4965 nm
Avg. Time of Flight		13 hours 8 minutes

Indian Mountain LRRS Airport to Siem Reap International Airport Flight Route Map - UTO to REP Flight Path

Location of Indian Mountain LRRS Airport & Siem Reap International Airport is given below.
Click the map to view Utopia Creek to Siem Reap nonstop flight path and travel direction.

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

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

Time Difference Between the Airports • UTO - REP

Time difference between Utopia Creek (United States) and Siem Reap (Cambodia) is 15 Hours.
Siem Reap time is 15 Hours ahead of Utopia Creek.

Location	Local Time
Utopia Creek (United States)	2026-09-23, 16:27:48 AKDT
Siem Reap (Cambodia)	2026-09-24, 07:27:48 +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

Indian Mountain LRRS Airport (UTO / PAIM) Utopia Creek, United States

Destination

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