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KLS to TKH: distance & flight time
Kelso (Southwest Washington Regional Airport) → Nakhon Sawan (Takhli Airport)
7,415 mi
11,933 km · 6,443 nm
15h
estimated nonstop flight time
+14h
time difference · heading northwest
See live KLS→TKH fares Phone-only fares on this route — call free
Flight time details
7,415 miles nonstop takes roughly 15h gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 14-hour time gain when reading arrival times on your ticket.
The two airports
- KLS — Southwest Washington Regional Airport · Kelso, United States
- TKH — Takhli Airport · Nakhon Sawan, Thailand
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 TKH
- KDT · Kamphaeng Saen Airport85 mi away
- DMK · Don Mueang International Airport97 mi away
- PHS · Phitsanulok Airport104 mi away
- BKK · Suvarnabhumi Airport114 mi away
Frequently asked questions
How far is KLS from TKH?
The flight distance from Kelso (KLS) to Nakhon Sawan (TKH) is 7,415 miles (11,933 km, 6,443 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from KLS to TKH?
A nonstop flight takes about 15h 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 Nakhon Sawan?
Nakhon Sawan is 14 hours ahead of Kelso.
What is the cheapest way to fly from KLS to TKH?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on KLS–TKH that never appear on search engines, with no booking fees.