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GTF to THL: distance & flight time
Great Falls (Great Falls International Airport) → Tachilek (Tachileik Airport)
7,354 mi
11,835 km · 6,391 nm
14h 53m
estimated nonstop flight time
+12.5h
time difference · heading northwest
See live GTF→THL fares Phone-only fares on this route — call free
Flight time details
7,354 miles nonstop takes roughly 14h 53m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 12.5-hour time gain when reading arrival times on your ticket.
The two airports
- GTF — Great Falls International Airport · Great Falls, 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 GTF
- HLN · Helena Regional Airport67 mi away
- CTB · Cut Bank International Airport91 mi away
- LWT · Lewistown Municipal Airport94 mi away
- HVR · Havre City County Airport104 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 GTF from THL?
The flight distance from Great Falls (GTF) to Tachilek (THL) is 7,354 miles (11,835 km, 6,391 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from GTF to THL?
A nonstop flight takes about 14h 53m 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 Great Falls and Tachilek?
Tachilek is 12.5 hours ahead of Great Falls.
What is the cheapest way to fly from GTF to THL?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on GTF–THL that never appear on search engines, with no booking fees.