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KLS to JAX: distance & flight time
Kelso (Southwest Washington Regional Airport) → Jacksonville (Jacksonville International Airport)
2,446 mi
3,937 km · 2,126 nm
5h 16m
estimated nonstop flight time
+3h
time difference · heading east
See live KLS→JAX fares Phone-only fares on this route — call free
Flight time details
2,446 miles nonstop takes roughly 5h 16m 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
- JAX — Jacksonville International Airport · Jacksonville, 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 JAX
Frequently asked questions
How far is KLS from JAX?
The flight distance from Kelso (KLS) to Jacksonville (JAX) is 2,446 miles (3,937 km, 2,126 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from KLS to JAX?
A nonstop flight takes about 5h 16m 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 Jacksonville?
Jacksonville is 3 hours ahead of Kelso.
What is the cheapest way to fly from KLS to JAX?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on KLS–JAX that never appear on search engines, with no booking fees.