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SEA to REP: distance & flight time
Seattle (Seattle Tacoma International Airport) → Siem-reap (Siem Reap International Airport)
7,363 mi
11,849 km · 6,398 nm
14h 54m
estimated nonstop flight time
+14h
time difference · heading northwest
See live SEA→REP fares Phone-only fares on this route — call free
Flight time details
7,363 miles nonstop takes roughly 14h 54m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 14-hour time gain when reading arrival times on your ticket.
The two airports
- SEA — Seattle Tacoma International Airport · Seattle, United States
- REP — Siem Reap International Airport · Siem-reap, Cambodia
Distances are great-circle ("as the crow flies") — the same basis airlines use for frequent-flyer miles.
Alternate airports can cut this fare
Flying from or into a nearby airport is the #1 trick our agents use to beat online prices. Call and we'll compare every combination on one call.
Near SEA
- RNT · Renton Municipal Airport5 mi away
- BFI · Boeing Field King County International Airport6 mi away
- TIW · Tacoma Narrows Airport18 mi away
- PWT · Bremerton National Airport21 mi away
Near REP
- BBM · Battambang Airport45 mi away
- KZC · Kampong Chhnang Airport95 mi away
- PXR · Surin Airport103 mi away
- TDX · Trat Airport128 mi away
Frequently asked questions
How far is SEA from REP?
The flight distance from Seattle (SEA) to Siem-reap (REP) is 7,363 miles (11,849 km, 6,398 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from SEA to REP?
A nonstop flight takes about 14h 54m gate to gate. Actual time varies with winds, routing and season — eastbound transatlantic flights, for example, are usually faster than the return.
What is the time difference between Seattle and Siem-reap?
Siem-reap is 14 hours ahead of Seattle.
What is the cheapest way to fly from SEA to REP?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on SEA–REP that never appear on search engines, with no booking fees.