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UTH to SEP: distance & flight time
Udon Thani (Udon Thani Airport) → Stephenville (Stephenville Clark Regional Airport)
8,739 mi
14,065 km · 7,594 nm
17h 36m
estimated nonstop flight time
-12h
time difference · heading north
See live UTH→SEP fares Phone-only fares on this route — call free
Flight time details
8,739 miles nonstop takes roughly 17h 36m gate to gate, flying north. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 12-hour time set-back when reading arrival times on your ticket.
The two airports
- UTH — Udon Thani Airport · Udon Thani, Thailand
- 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 UTH
- VTE · Wattay International Airport44 mi away
- KKC · Khon Kaen Airport64 mi away
- LOE · Loei Airport70 mi away
- SNO · Sakon Nakhon Airport89 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 UTH from SEP?
The flight distance from Udon Thani (UTH) to Stephenville (SEP) is 8,739 miles (14,065 km, 7,594 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from UTH to SEP?
A nonstop flight takes about 17h 36m 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 Udon Thani and Stephenville?
Stephenville is 12 hours behind Udon Thani.
What is the cheapest way to fly from UTH to SEP?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on UTH–SEP that never appear on search engines, with no booking fees.