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STK to KLS: distance & flight time
Sterling (Sterling Municipal Airport) → Kelso (Southwest Washington Regional Airport)
1,053 mi
1,695 km · 915 nm
2h 45m
estimated nonstop flight time
-1h
time difference · heading northwest
See live STK→KLS fares Phone-only fares on this route — call free
Flight time details
1,053 miles nonstop takes roughly 2h 45m gate to gate, flying northwest. 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
- STK — Sterling Municipal Airport · Sterling, 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 STK
- AKO · Colorado Plains Regional Airport30 mi away
- SNY · Sidney Municipal-Lloyd W Carr Field37 mi away
- DEN · Denver International Airport91 mi away
- GXY · Greeley–Weld County Airport73 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 STK from KLS?
The flight distance from Sterling (STK) to Kelso (KLS) is 1,053 miles (1,695 km, 915 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from STK to KLS?
A nonstop flight takes about 2h 45m 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 Sterling and Kelso?
Kelso is 1 hour behind Sterling.
What is the cheapest way to fly from STK to KLS?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on STK–KLS that never appear on search engines, with no booking fees.