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KLS to SDF: distance & flight time
Kelso (Southwest Washington Regional Airport) → Louisville (Louisville International Standiford Field)
1,961 mi
3,157 km · 1,704 nm
4h 19m
estimated nonstop flight time
+3h
time difference · heading east
See live KLS→SDF fares Phone-only fares on this route — call free
Flight time details
1,961 miles nonstop takes roughly 4h 19m gate to gate, flying east. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 3-hour time gain when reading arrival times on your ticket.
The two airports
- KLS — Southwest Washington Regional Airport · Kelso, United States
- SDF — Louisville International Standiford Field · Louisville, 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 SDF
- LOU · Bowman Field5 mi away
- FTK · Godman Army Air Field22 mi away
- FFT · Capital City Airport45 mi away
- LEX · Blue Grass Airport62 mi away
Frequently asked questions
How far is KLS from SDF?
The flight distance from Kelso (KLS) to Louisville (SDF) is 1,961 miles (3,157 km, 1,704 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from KLS to SDF?
A nonstop flight takes about 4h 19m 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 Kelso and Louisville?
Louisville is 3 hours ahead of Kelso.
What is the cheapest way to fly from KLS to SDF?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on KLS–SDF that never appear on search engines, with no booking fees.