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KLS to YSO: distance & flight time
Kelso (Southwest Washington Regional Airport) → Postville (Postville Airport)
2,739 mi
4,409 km · 2,380 nm
5h 50m
estimated nonstop flight time
+4h
time difference · heading northeast
See live KLS→YSO fares Phone-only fares on this route — call free
Flight time details
2,739 miles nonstop takes roughly 5h 50m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 4-hour time gain when reading arrival times on your ticket.
The two airports
- KLS — Southwest Washington Regional Airport · Kelso, United States
- YSO — Postville Airport · Postville, Canada
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 YSO
- YMN · Makkovik Airport26 mi away
- YHO · Hopedale Airport41 mi away
- YRG · Rigolet Airport73 mi away
- YNP · Natuashish Airport88 mi away
Frequently asked questions
How far is KLS from YSO?
The flight distance from Kelso (KLS) to Postville (YSO) is 2,739 miles (4,409 km, 2,380 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from KLS to YSO?
A nonstop flight takes about 5h 50m 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 Postville?
Postville is 4 hours ahead of Kelso.
What is the cheapest way to fly from KLS to YSO?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on KLS–YSO that never appear on search engines, with no booking fees.