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KLS to THL: distance & flight time
Kelso (Southwest Washington Regional Airport) → Tachilek (Tachileik Airport)
7,113 mi
11,447 km · 6,181 nm
14h 25m
estimated nonstop flight time
+13.5h
time difference · heading northwest
See live KLS→THL fares Phone-only fares on this route — call free
Flight time details
7,113 miles nonstop takes roughly 14h 25m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 13.5-hour time gain when reading arrival times on your ticket.
The two airports
- KLS — Southwest Washington Regional Airport · Kelso, United States
- THL — Tachileik Airport · Tachilek, Burma
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 THL
- HOE · Ban Huoeisay Airport36 mi away
- CEI · Chiang Rai International Airport37 mi away
- MOG · Mong Hsat Airport44 mi away
- KET · Kengtung Airport60 mi away
Frequently asked questions
How far is KLS from THL?
The flight distance from Kelso (KLS) to Tachilek (THL) is 7,113 miles (11,447 km, 6,181 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from KLS to THL?
A nonstop flight takes about 14h 25m 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 Tachilek?
Tachilek is 13.5 hours ahead of Kelso.
What is the cheapest way to fly from KLS to THL?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on KLS–THL that never appear on search engines, with no booking fees.