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DUC to ROI: distance & flight time
Duncan (Halliburton Field) → Roi Et (Roi Et Airport)
8,661 mi
13,939 km · 7,526 nm
17h 27m
estimated nonstop flight time
+12h
time difference · heading northwest
See live DUC→ROI fares Phone-only fares on this route — call free
Flight time details
8,661 miles nonstop takes roughly 17h 27m 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
- DUC — Halliburton Field · Duncan, United States
- ROI — Roi Et Airport · Roi Et, 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 DUC
Near ROI
- KKC · Khon Kaen Airport70 mi away
- BFV · Buri Ram Airport70 mi away
- ZVK · Savannakhet Airport72 mi away
- SNO · Sakon Nakhon Airport78 mi away
Frequently asked questions
How far is DUC from ROI?
The flight distance from Duncan (DUC) to Roi Et (ROI) is 8,661 miles (13,939 km, 7,526 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from DUC to ROI?
A nonstop flight takes about 17h 27m 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 Duncan and Roi Et?
Roi Et is 12 hours ahead of Duncan.
What is the cheapest way to fly from DUC to ROI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on DUC–ROI that never appear on search engines, with no booking fees.