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THL to USM: distance & flight time
Tachilek (Tachileik Airport) → Ko Samui (Samui Airport)
756 mi
1,216 km · 657 nm
2h 7m
estimated nonstop flight time
+0.5h
time difference · heading south
See live THL→USM fares Phone-only fares on this route — call free
Flight time details
756 miles nonstop takes roughly 2h 7m 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
- USM — Samui Airport · Ko Samui, 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 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 USM
- URT · Surat Thani Airport69 mi away
- NST · Nakhon Si Thammarat Airport70 mi away
- CJM · Chumphon Airport93 mi away
- UNN · Ranong Airport102 mi away
Frequently asked questions
How far is THL from USM?
The flight distance from Tachilek (THL) to Ko Samui (USM) is 756 miles (1,216 km, 657 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from THL to USM?
A nonstop flight takes about 2h 7m 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 Ko Samui?
Ko Samui is 0.5 hours ahead of Tachilek.
What is the cheapest way to fly from THL to USM?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on THL–USM that never appear on search engines, with no booking fees.