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TRD to ISN: distance & flight time
Trondheim (Trondheim Airport Værnes) → Williston (Sloulin Field International Airport)
3,947 mi
6,352 km · 3,430 nm
8h 12m
estimated nonstop flight time
-7h
time difference · heading northwest
See live TRD→ISN fares Phone-only fares on this route — call free
Flight time details
3,947 miles nonstop takes roughly 8h 12m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 7-hour time set-back when reading arrival times on your ticket.
The two airports
- TRD — Trondheim Airport Værnes · Trondheim, Norway
- ISN — Sloulin Field International Airport · Williston, 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 TRD
- OLA · Ørland Airport44 mi away
- RRS · Røros Airport62 mi away
- OSY · Namsos Høknesøra Airport73 mi away
- RVK · Rørvik Airport, Ryum96 mi away
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
Frequently asked questions
How far is TRD from ISN?
The flight distance from Trondheim (TRD) to Williston (ISN) is 3,947 miles (6,352 km, 3,430 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from TRD to ISN?
A nonstop flight takes about 8h 12m 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 Trondheim and Williston?
Williston is 7 hours behind Trondheim.
What is the cheapest way to fly from TRD to ISN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on TRD–ISN that never appear on search engines, with no booking fees.