Need help booking?
Unpublished phone-only deals available
DEC to ROI: distance & flight time
Decatur (Decatur Airport) → Roi Et (Roi Et Airport)
8,486 mi
13,657 km · 7,374 nm
17h 6m
estimated nonstop flight time
+12h
time difference · heading north
See live DEC→ROI fares Phone-only fares on this route — call free
Flight time details
8,486 miles nonstop takes roughly 17h 6m gate to gate, flying north. 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
- DEC — Decatur Airport · Decatur, 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 DEC
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 DEC from ROI?
The flight distance from Decatur (DEC) to Roi Et (ROI) is 8,486 miles (13,657 km, 7,374 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from DEC to ROI?
A nonstop flight takes about 17h 6m 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 Decatur and Roi Et?
Roi Et is 12 hours ahead of Decatur.
What is the cheapest way to fly from DEC to ROI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on DEC–ROI that never appear on search engines, with no booking fees.