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KLS to REP: distance & flight time
Kelso (Southwest Washington Regional Airport) → Siem-reap (Siem Reap International Airport)
7,405 mi
11,917 km · 6,434 nm
14h 59m
estimated nonstop flight time
+14h
time difference · heading northwest
See live KLS→REP fares Phone-only fares on this route — call free
Flight time details
7,405 miles nonstop takes roughly 14h 59m 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
- KLS — Southwest Washington Regional Airport · Kelso, 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 KLS
- PDX · Portland International Airport39 mi away
- CLS · Chehalis Centralia Airport39 mi away
- HIO · Portland Hillsboro Airport40 mi away
- TTD · Portland Troutdale Airport46 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 KLS from REP?
The flight distance from Kelso (KLS) to Siem-reap (REP) is 7,405 miles (11,917 km, 6,434 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from KLS to REP?
A nonstop flight takes about 14h 59m 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 Kelso and Siem-reap?
Siem-reap is 14 hours ahead of Kelso.
What is the cheapest way to fly from KLS to REP?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on KLS–REP that never appear on search engines, with no booking fees.