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GWT to ISN: distance & flight time
Westerland (Westerland Sylt Airport) → Williston (Sloulin Field International Airport)
4,298 mi
6,917 km · 3,735 nm
8h 54m
estimated nonstop flight time
-7h
time difference · heading northwest
See live GWT→ISN fares Phone-only fares on this route — call free
Flight time details
4,298 miles nonstop takes roughly 8h 54m 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
- GWT — Westerland Sylt Airport · Westerland, Germany
- 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 GWT
- FLF · Flensburg-Schäferhaus Airport42 mi away
- SKS · Skrydstrup Air Base42 mi away
- EBJ · Esbjerg Airport43 mi away
- PSH · St. Peter-Ording Airport44 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 GWT from ISN?
The flight distance from Westerland (GWT) to Williston (ISN) is 4,298 miles (6,917 km, 3,735 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from GWT to ISN?
A nonstop flight takes about 8h 54m 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 Westerland and Williston?
Williston is 7 hours behind Westerland.
What is the cheapest way to fly from GWT to ISN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on GWT–ISN that never appear on search engines, with no booking fees.