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THL to KOS: distance & flight time
Tachilek (Tachileik Airport) → Sihanoukville (Sihanoukville International Airport)
727 mi
1,170 km · 632 nm
2h 3m
estimated nonstop flight time
+0.5h
time difference · heading south
See live THL→KOS fares Phone-only fares on this route — call free
Flight time details
727 miles nonstop takes roughly 2h 3m gate to gate, flying south. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 0.5-hour time gain when reading arrival times on your ticket.
The two airports
- THL — Tachileik Airport · Tachilek, Burma
- KOS — Sihanoukville International Airport · Sihanoukville, Cambodia
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 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
Near KOS
- PQC · Phu Quoc International Airport37 mi away
- PNH · Phnom Penh International Airport106 mi away
- VKG · Rach Gia Airport110 mi away
- KZC · Kampong Chhnang Airport132 mi away
Frequently asked questions
How far is THL from KOS?
The flight distance from Tachilek (THL) to Sihanoukville (KOS) is 727 miles (1,170 km, 632 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from THL to KOS?
A nonstop flight takes about 2h 3m 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 Tachilek and Sihanoukville?
Sihanoukville is 0.5 hours ahead of Tachilek.
What is the cheapest way to fly from THL to KOS?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on THL–KOS that never appear on search engines, with no booking fees.