Need help booking?
Unpublished phone-only deals available
THS to DUC: distance & flight time
Sukhothai (Sukhothai Airport) → Duncan (Halliburton Field)
8,678 mi
13,966 km · 7,541 nm
17h 29m
estimated nonstop flight time
-12h
time difference · heading north
See live THS→DUC fares Phone-only fares on this route — call free
Flight time details
8,678 miles nonstop takes roughly 17h 29m 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
- THS — Sukhothai Airport · Sukhothai, Thailand
- DUC — Halliburton Field · Duncan, 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 THS
- PHS · Phitsanulok Airport44 mi away
- TKT · Tak Airport44 mi away
- PRH · Phrae Airport66 mi away
- LPT · Lampang Airport74 mi away
Near DUC
Frequently asked questions
How far is THS from DUC?
The flight distance from Sukhothai (THS) to Duncan (DUC) is 8,678 miles (13,966 km, 7,541 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from THS to DUC?
A nonstop flight takes about 17h 29m 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 Sukhothai and Duncan?
Duncan is 12 hours behind Sukhothai.
What is the cheapest way to fly from THS to DUC?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on THS–DUC that never appear on search engines, with no booking fees.