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ASE to KLS: distance & flight time
Aspen (Aspen-Pitkin Co/Sardy Field) → Kelso (Southwest Washington Regional Airport)
941 mi
1,514 km · 818 nm
2h 31m
estimated nonstop flight time
-1h
time difference · heading northwest
See live ASE→KLS fares Phone-only fares on this route — call free
Flight time details
941 miles nonstop takes roughly 2h 31m 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
- ASE — Aspen-Pitkin Co/Sardy Field · Aspen, 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 ASE
- EGE · Eagle County Regional Airport29 mi away
- GUC · Gunnison Crested Butte Regional Airport48 mi away
- RIL · Garfield County Regional Airport50 mi away
- MTJ · Montrose Regional Airport74 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 ASE from KLS?
The flight distance from Aspen (ASE) to Kelso (KLS) is 941 miles (1,514 km, 818 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from ASE to KLS?
A nonstop flight takes about 2h 31m 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 ASE to KLS?
Nonstop service on ASE–KLS 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 2h 31m nonstop estimate.
What is the time difference between Aspen and Kelso?
Kelso is 1 hour behind Aspen.
What is the cheapest way to fly from ASE to KLS?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on ASE–KLS that never appear on search engines, with no booking fees.
Why are some ASE to KLS fares phone-only?
Consolidator contracts let us sell certain ASE–KLS 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.