Need help booking?
Unpublished phone-only deals available
CSM to KLS: distance & flight time
Clinton (Clinton Sherman Airport) → Kelso (Southwest Washington Regional Airport)
1,439 mi
2,315 km · 1,250 nm
3h 36m
estimated nonstop flight time
-2h
time difference · heading northwest
See live CSM→KLS fares Phone-only fares on this route — call free
Flight time details
1,439 miles nonstop takes roughly 3h 36m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 2-hour time set-back when reading arrival times on your ticket.
The two airports
- CSM — Clinton Sherman Airport · Clinton, 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 CSM
- HBR · Hobart Regional Airport26 mi away
- LTS · Altus Air Force Base47 mi away
- FSI · Henry Post Army Air Field (Fort Sill)66 mi away
- LAW · Lawton Fort Sill Regional Airport69 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 CSM from KLS?
The flight distance from Clinton (CSM) to Kelso (KLS) is 1,439 miles (2,315 km, 1,250 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from CSM to KLS?
A nonstop flight takes about 3h 36m 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 Clinton and Kelso?
Kelso is 2 hours behind Clinton.
What is the cheapest way to fly from CSM to KLS?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on CSM–KLS that never appear on search engines, with no booking fees.