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THL to SEP: distance & flight time
Tachilek (Tachileik Airport) → Stephenville (Stephenville Clark Regional Airport)
8,604 mi
13,846 km · 7,476 nm
17h 20m
estimated nonstop flight time
-11.5h
time difference · heading north
See live THL→SEP fares Phone-only fares on this route — call free
Flight time details
8,604 miles nonstop takes roughly 17h 20m gate to gate, flying north. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 11.5-hour time set-back when reading arrival times on your ticket.
The two airports
- THL — Tachileik Airport · Tachilek, Burma
- SEP — Stephenville Clark Regional Airport · Stephenville, United States
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 SEP
- MWL · Mineral Wells Airport40 mi away
- DFW · Dallas Fort Worth International Airport81 mi away
- BKD · Stephens County Airport54 mi away
- FWH · NAS Fort Worth JRB/Carswell Field57 mi away
Frequently asked questions
How far is THL from SEP?
The flight distance from Tachilek (THL) to Stephenville (SEP) is 8,604 miles (13,846 km, 7,476 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from THL to SEP?
A nonstop flight takes about 17h 20m 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 Stephenville?
Stephenville is 11.5 hours behind Tachilek.
What is the cheapest way to fly from THL to SEP?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on THL–SEP that never appear on search engines, with no booking fees.