Need help booking?
Unpublished phone-only deals available
DSO to KLS: distance & flight time
Hamhung (Sondok Airport) → Kelso (Southwest Washington Regional Airport)
5,087 mi
8,188 km · 4,421 nm
10h 27m
estimated nonstop flight time
-16h
time difference · heading northeast
See live DSO→KLS fares Phone-only fares on this route — call free
Flight time details
5,087 miles nonstop takes roughly 10h 27m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 16-hour time set-back when reading arrival times on your ticket.
The two airports
- DSO — Sondok Airport · Hamhung, North Korea
- KLS — Southwest Washington Regional Airport · Kelso, United States
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 DSO
- WOS · Wonsan Kalma International Airport40 mi away
- FNJ · Pyongyang Sunan International Airport103 mi away
- YNY · Yangyang International Airport133 mi away
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
Frequently asked questions
How far is DSO from KLS?
The flight distance from Hamhung (DSO) to Kelso (KLS) is 5,087 miles (8,188 km, 4,421 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from DSO to KLS?
A nonstop flight takes about 10h 27m 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 Hamhung and Kelso?
Kelso is 16 hours behind Hamhung.
What is the cheapest way to fly from DSO to KLS?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on DSO–KLS that never appear on search engines, with no booking fees.