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KLS to KSO: distance & flight time
Kelso (Southwest Washington Regional Airport) → Kastoria (Kastoria National Airport)
6,061 mi
9,754 km · 5,267 nm
12h 21m
estimated nonstop flight time
+10h
time difference · heading northeast
See live KLS→KSO fares Phone-only fares on this route — call free
Flight time details
6,061 miles nonstop takes roughly 12h 21m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 10-hour time gain when reading arrival times on your ticket.
The two airports
- KLS — Southwest Washington Regional Airport · Kelso, United States
- KSO — Kastoria National Airport · Kastoria, Greece
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 KSO
- KZI · Filippos Airport31 mi away
- IOA · Ioannina Airport57 mi away
- OHD · Ohrid St. Paul the Apostle Airport58 mi away
- LRA · Larisa Airport83 mi away
Frequently asked questions
How far is KLS from KSO?
The flight distance from Kelso (KLS) to Kastoria (KSO) is 6,061 miles (9,754 km, 5,267 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from KLS to KSO?
A nonstop flight takes about 12h 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 Kelso and Kastoria?
Kastoria is 10 hours ahead of Kelso.
What is the cheapest way to fly from KLS to KSO?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on KLS–KSO that never appear on search engines, with no booking fees.