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MCS to KLS: distance & flight time
Monte Caseros (Monte Caseros Airport) → Kelso (Southwest Washington Regional Airport)
6,666 mi
10,728 km · 5,792 nm
13h 32m
estimated nonstop flight time
-4h
time difference · heading northwest
See live MCS→KLS fares Phone-only fares on this route — call free
Flight time details
6,666 miles nonstop takes roughly 13h 32m 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
- MCS — Monte Caseros Airport · Monte Caseros, 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 MCS
- UZU · Curuzu Cuatia Airport40 mi away
- URG · Rubem Berta Airport49 mi away
- AOL · Paso De Los Libres Airport50 mi away
- ATI · Artigas International Airport68 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 MCS from KLS?
The flight distance from Monte Caseros (MCS) to Kelso (KLS) is 6,666 miles (10,728 km, 5,792 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from MCS to KLS?
A nonstop flight takes about 13h 32m 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 Monte Caseros and Kelso?
Kelso is 4 hours behind Monte Caseros.
What is the cheapest way to fly from MCS to KLS?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on MCS–KLS that never appear on search engines, with no booking fees.