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IAD to KLS: distance & flight time
Washington (Washington Dulles International Airport) → Kelso (Southwest Washington Regional Airport)
2,333 mi
3,755 km · 2,027 nm
5h 2m
estimated nonstop flight time
-3h
time difference · heading northwest
See live IAD→KLS fares Phone-only fares on this route — call free
Flight time details
2,333 miles nonstop takes roughly 5h 2m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 3-hour time set-back when reading arrival times on your ticket.
The two airports
- IAD — Washington Dulles International Airport · Washington, 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 IAD
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 IAD from KLS?
The flight distance from Washington (IAD) to Kelso (KLS) is 2,333 miles (3,755 km, 2,027 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from IAD to KLS?
A nonstop flight takes about 5h 2m 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 Washington and Kelso?
Kelso is 3 hours behind Washington.
What is the cheapest way to fly from IAD to KLS?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on IAD–KLS that never appear on search engines, with no booking fees.