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KLS to SSN: distance & flight time
Kelso (Southwest Washington Regional Airport) → Seoul East (Seoul Air Base (K-16))
5,218 mi
8,397 km · 4,534 nm
10h 42m
estimated nonstop flight time
+16h
time difference · heading northwest
See live KLS→SSN fares Phone-only fares on this route — call free
Flight time details
5,218 miles nonstop takes roughly 10h 42m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 16-hour time gain when reading arrival times on your ticket.
The two airports
- KLS — Southwest Washington Regional Airport · Kelso, United States
- SSN — Seoul Air Base (K-16) · Seoul East, South Korea
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 SSN
- ICN · Incheon International Airport36 mi away
- SWU · Suwon Airport15 mi away
- GMP · Gimpo International Airport19 mi away
- OSN · Osan Air Base25 mi away
Frequently asked questions
How far is KLS from SSN?
The flight distance from Kelso (KLS) to Seoul East (SSN) is 5,218 miles (8,397 km, 4,534 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from KLS to SSN?
A nonstop flight takes about 10h 42m 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 Seoul East?
Seoul East is 16 hours ahead of Kelso.
What is the cheapest way to fly from KLS to SSN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on KLS–SSN that never appear on search engines, with no booking fees.