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DED to ROI: distance & flight time
Dehra Dun (Dehradun Airport) → Roi Et (Roi Et Airport)
1,887 mi
3,037 km · 1,640 nm
4h 10m
estimated nonstop flight time
+1.5h
time difference · heading southeast
See live DED→ROI fares Phone-only fares on this route — call free
Flight time details
1,887 miles nonstop takes roughly 4h 10m gate to gate, flying southeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 1.5-hour time gain when reading arrival times on your ticket.
The two airports
- DED — Dehradun Airport · Dehra Dun, India
- 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 DED
- IXC · Chandigarh Airport89 mi away
- SLV · Shimla Airport90 mi away
- PGH · Pantnagar Airport111 mi away
- DEL · Indira Gandhi International Airport130 mi away
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 DED from ROI?
The flight distance from Dehra Dun (DED) to Roi Et (ROI) is 1,887 miles (3,037 km, 1,640 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from DED to ROI?
A nonstop flight takes about 4h 10m 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 Dehra Dun and Roi Et?
Roi Et is 1.5 hours ahead of Dehra Dun.
What is the cheapest way to fly from DED to ROI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on DED–ROI that never appear on search engines, with no booking fees.