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ISN to DED: distance & flight time
Williston (Sloulin Field International Airport) → Dehra Dun (Dehradun Airport)
7,021 mi
11,299 km · 6,101 nm
14h 14m
estimated nonstop flight time
+10.5h
time difference · heading north
See live ISN→DED fares Phone-only fares on this route — call free
Flight time details
7,021 miles nonstop takes roughly 14h 14m gate to gate, flying north. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 10.5-hour time gain when reading arrival times on your ticket.
The two airports
- ISN — Sloulin Field International Airport · Williston, United States
- DED — Dehradun Airport · Dehra Dun, India
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 ISN
- SDY · Sidney - Richland Regional Airport41 mi away
- YEN · Estevan Airport78 mi away
- OLF · L M Clayton Airport89 mi away
- GDV · Dawson Community Airport90 mi away
Near DED
- IXC · Chandigarh Airport89 mi away
- SLV · Shimla Airport90 mi away
- PGH · Pantnagar Airport111 mi away
- DEL · Indira Gandhi International Airport130 mi away
Frequently asked questions
How far is ISN from DED?
The flight distance from Williston (ISN) to Dehra Dun (DED) is 7,021 miles (11,299 km, 6,101 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from ISN to DED?
A nonstop flight takes about 14h 14m 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 Williston and Dehra Dun?
Dehra Dun is 10.5 hours ahead of Williston.
What is the cheapest way to fly from ISN to DED?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on ISN–DED that never appear on search engines, with no booking fees.