Need help booking?
Unpublished phone-only deals available
FMA to KLS: distance & flight time
Formosa (Formosa Airport) → Kelso (Southwest Washington Regional Airport)
6,426 mi
10,341 km · 5,584 nm
13h 4m
estimated nonstop flight time
-4h
time difference · heading northwest
See live FMA→KLS fares Phone-only fares on this route — call free
Flight time details
6,426 miles nonstop takes roughly 13h 4m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 4-hour time set-back when reading arrival times on your ticket.
The two airports
- FMA — Formosa Airport · Formosa, Argentina
- 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 FMA
- PIL · Carlos Miguel Gimenez Airport47 mi away
- ASU · Silvio Pettirossi International Airport80 mi away
- CNQ · Corrientes Airport91 mi away
- RES · Resistencia International Airport100 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 FMA from KLS?
The flight distance from Formosa (FMA) to Kelso (KLS) is 6,426 miles (10,341 km, 5,584 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from FMA to KLS?
A nonstop flight takes about 13h 4m 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 Formosa and Kelso?
Kelso is 4 hours behind Formosa.
What is the cheapest way to fly from FMA to KLS?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on FMA–KLS that never appear on search engines, with no booking fees.