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KOS to THL: distance & flight time
Sihanoukville (Sihanoukville International Airport) → Tachilek (Tachileik Airport)
727 mi
1,170 km · 632 nm
2h 3m
estimated nonstop flight time
-0.5h
time difference · heading north
See live KOS→THL fares Phone-only fares on this route — call free
Flight time details
727 miles nonstop takes roughly 2h 3m gate to gate, flying north. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 0.5-hour time set-back when reading arrival times on your ticket.
The two airports
- KOS — Sihanoukville International Airport · Sihanoukville, Cambodia
- 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 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
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 KOS from THL?
The flight distance from Sihanoukville (KOS) to Tachilek (THL) is 727 miles (1,170 km, 632 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from KOS to THL?
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 Sihanoukville and Tachilek?
Tachilek is 0.5 hours behind Sihanoukville.
What is the cheapest way to fly from KOS to THL?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on KOS–THL that never appear on search engines, with no booking fees.