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KLS to SMN: distance & flight time
Kelso (Southwest Washington Regional Airport) → Salmon (Lemhi County Airport)
441 mi
710 km · 383 nm
1h 26m
estimated nonstop flight time
+1h
time difference · heading east
See live KLS→SMN fares Phone-only fares on this route — call free
Flight time details
441 miles nonstop takes roughly 1h 26m gate to gate, flying east. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 1-hour time gain when reading arrival times on your ticket.
The two airports
- KLS — Southwest Washington Regional Airport · Kelso, United States
- SMN — Lemhi County Airport · Salmon, 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 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 SMN
- BTM · Bert Mooney Airport88 mi away
- MYL · McCall Municipal Airport110 mi away
- SUN · Friedman Memorial Airport114 mi away
- MSO · Missoula International Airport124 mi away
Frequently asked questions
How far is KLS from SMN?
The flight distance from Kelso (KLS) to Salmon (SMN) is 441 miles (710 km, 383 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from KLS to SMN?
A nonstop flight takes about 1h 26m gate to gate. Actual time varies with winds, routing and season — eastbound transatlantic flights, for example, are usually faster than the return.
Are there nonstop flights from KLS to SMN?
Nonstop service on KLS–SMN depends on the season and the day of week. Run the fare search on this page with the nonstop filter applied to see current direct options; when there is no nonstop, a single connection through a carrier hub adds roughly 2–4 hours to the 1h 26m nonstop estimate.
What is the time difference between Kelso and Salmon?
Salmon is 1 hour ahead of Kelso.
What is the cheapest way to fly from KLS to SMN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on KLS–SMN that never appear on search engines, with no booking fees.
Why are some KLS to SMN fares phone-only?
Consolidator contracts let us sell certain KLS–SMN tickets below the price airlines permit us to publish online, so those fares can only be quoted over the phone. Call the travel desk and an agent will check phone-only inventory for your dates.