Distance From Siem Reap International Airport to Seattle–Tacoma International Airport, REP - SEA Distance

The distance from Siem Reap International Airport (REP) to Seattle–Tacoma International Airport (SEA) is 7363 miles or 11849 kilometers or 6394 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 Seattle ( United States )?

A one-way nonstop (direct) flight between Siem Reap and Seattle takes around 16 hours 55 minutes.

Estimated flight time from Siem Reap International Airport, Siem Reap, Cambodia to Seattle–Tacoma International Airport, Seattle, United States is 16 hours 55 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 - SEA

Kilometers		11849 km
Statute Miles		7363 miles
Nautical Miles		6394 nm
Avg. Time of Flight		16 hours 55 minutes

Siem Reap International Airport to Seattle–Tacoma International Airport Flight Route Map - REP to SEA Flight Path

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

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

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

Time Difference Between the Airports • REP - SEA

Time difference between Siem Reap (Cambodia) and Seattle (United States) is 14 Hours.
Seattle time is 14 Hours behind Siem Reap.

Location	Local Time
Siem Reap (Cambodia)	2025-12-15, 12:38:11 +07
Seattle (United States)	2025-12-14, 22:38:11 MST

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

Seattle–Tacoma International Airport (SEA / KSEA) Seattle, United States