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ISA to KLS: distance & flight time
Mount Isa (Mount Isa Airport) → Kelso (Southwest Washington Regional Airport)
7,593 mi
12,220 km · 6,598 nm
15h 21m
estimated nonstop flight time
-17h
time difference · heading northeast
See live ISA→KLS fares Phone-only fares on this route — call free
Flight time details
7,593 miles nonstop takes roughly 15h 21m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 17-hour time set-back when reading arrival times on your ticket.
The two airports
- ISA — Mount Isa Airport · Mount Isa, Australia
- 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 ISA
- CNJ · Cloncurry Airport66 mi away
- JCK · Julia Creek Airport144 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 ISA from KLS?
The flight distance from Mount Isa (ISA) to Kelso (KLS) is 7,593 miles (12,220 km, 6,598 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from ISA to KLS?
A nonstop flight takes about 15h 21m 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 Mount Isa and Kelso?
Kelso is 17 hours behind Mount Isa.
What is the cheapest way to fly from ISA to KLS?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on ISA–KLS that never appear on search engines, with no booking fees.