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GSP to KLS: distance & flight time
Greenville (Greenville Spartanburg International Airport) → Kelso (Southwest Washington Regional Airport)
2,245 mi
3,612 km · 1,951 nm
4h 52m
estimated nonstop flight time
-3h
time difference · heading northwest
See live GSP→KLS fares Phone-only fares on this route — call free
Flight time details
2,245 miles nonstop takes roughly 4h 52m 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
- GSP — Greenville Spartanburg International Airport · Greenville, 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 GSP
- GMU · Greenville Downtown Airport8 mi away
- GDC · Donaldson Field Airport13 mi away
- SPA · Spartanburg Downtown Memorial Airport15 mi away
- CLT · Charlotte Douglas International Airport75 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 GSP from KLS?
The flight distance from Greenville (GSP) to Kelso (KLS) is 2,245 miles (3,612 km, 1,951 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from GSP to KLS?
A nonstop flight takes about 4h 52m 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 Greenville and Kelso?
Kelso is 3 hours behind Greenville.
What is the cheapest way to fly from GSP to KLS?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on GSP–KLS that never appear on search engines, with no booking fees.