Need help booking?
Unpublished phone-only deals available
DTM to ISN: distance & flight time
Dortmund (Dortmund Airport) → Williston (Sloulin Field International Airport)
4,446 mi
7,155 km · 3,863 nm
9h 11m
estimated nonstop flight time
-7h
time difference · heading northwest
See live DTM→ISN fares Phone-only fares on this route — call free
Flight time details
4,446 miles nonstop takes roughly 9h 11m 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
- DTM — Dortmund Airport · Dortmund, 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 DTM
- ESS · Essen Mulheim Airport30 mi away
- DUS · Düsseldorf Airport40 mi away
- GUT · Gütersloh Air Base41 mi away
- FMO · Münster Osnabrück Airport43 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 DTM from ISN?
The flight distance from Dortmund (DTM) to Williston (ISN) is 4,446 miles (7,155 km, 3,863 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from DTM to ISN?
A nonstop flight takes about 9h 11m 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 Dortmund and Williston?
Williston is 7 hours behind Dortmund.
What is the cheapest way to fly from DTM to ISN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on DTM–ISN that never appear on search engines, with no booking fees.