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LWT to KLS: distance & flight time
Lewistown (Lewistown Municipal Airport) → Kelso (Southwest Washington Regional Airport)
640 mi
1,030 km · 556 nm
1h 52m
estimated nonstop flight time
-1h
time difference · heading west
See live LWT→KLS fares Phone-only fares on this route — call free
Flight time details
640 miles nonstop takes roughly 1h 52m gate to gate, flying west. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 1-hour time set-back when reading arrival times on your ticket.
The two airports
- LWT — Lewistown Municipal Airport · Lewistown, United States
- 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 LWT
- GTF · Great Falls International Airport94 mi away
- BIL · Billings Logan International Airport96 mi away
- HVR · Havre City County Airport104 mi away
- LVM · Mission Field104 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 LWT from KLS?
The flight distance from Lewistown (LWT) to Kelso (KLS) is 640 miles (1,030 km, 556 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from LWT to KLS?
A nonstop flight takes about 1h 52m 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 Lewistown and Kelso?
Kelso is 1 hour behind Lewistown.
What is the cheapest way to fly from LWT to KLS?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on LWT–KLS that never appear on search engines, with no booking fees.