Need help booking?
Unpublished phone-only deals available
SEP to DMK: distance & flight time
Stephenville (Stephenville Clark Regional Airport) → Bangkok (Don Mueang International Airport)
9,016 mi
14,510 km · 7,835 nm
18h 9m
estimated nonstop flight time
+12h
time difference · heading northwest
See live SEP→DMK fares Phone-only fares on this route — call free
Flight time details
9,016 miles nonstop takes roughly 18h 9m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 12-hour time gain when reading arrival times on your ticket.
The two airports
- SEP — Stephenville Clark Regional Airport · Stephenville, United States
- DMK — Don Mueang International Airport · Bangkok, 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 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
Near DMK
- BKK · Suvarnabhumi Airport19 mi away
- KDT · Kamphaeng Saen Airport48 mi away
- UTP · U-Tapao International Airport89 mi away
- TKH · Takhli Airport97 mi away
Frequently asked questions
How far is SEP from DMK?
The flight distance from Stephenville (SEP) to Bangkok (DMK) is 9,016 miles (14,510 km, 7,835 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from SEP to DMK?
A nonstop flight takes about 18h 9m 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 Stephenville and Bangkok?
Bangkok is 12 hours ahead of Stephenville.
What is the cheapest way to fly from SEP to DMK?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on SEP–DMK that never appear on search engines, with no booking fees.