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KLS to OSP: distance & flight time
Kelso (Southwest Washington Regional Airport) → Slupsk (Redzikowo Air Base)
5,103 mi
8,212 km · 4,434 nm
10h 28m
estimated nonstop flight time
+9h
time difference · heading northeast
See live KLS→OSP fares Phone-only fares on this route — call free
Flight time details
5,103 miles nonstop takes roughly 10h 28m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 9-hour time gain when reading arrival times on your ticket.
The two airports
- KLS — Southwest Washington Regional Airport · Kelso, United States
- OSP — Redzikowo Air Base · Slupsk, Poland
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 OSP
- GDN · Gdańsk Lech Wałęsa Airport55 mi away
- QYD · Oksywie Military Air Base57 mi away
- RNN · Bornholm Airport102 mi away
- BZG · Bydgoszcz Ignacy Jan Paderewski Airport102 mi away
Frequently asked questions
How far is KLS from OSP?
The flight distance from Kelso (KLS) to Slupsk (OSP) is 5,103 miles (8,212 km, 4,434 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from KLS to OSP?
A nonstop flight takes about 10h 28m 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 Slupsk?
Slupsk is 9 hours ahead of Kelso.
What is the cheapest way to fly from KLS to OSP?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on KLS–OSP that never appear on search engines, with no booking fees.