Need help booking?
Unpublished phone-only deals available
ISN to AAH: distance & flight time
Williston (Sloulin Field International Airport) → Aachen (Aachen-Merzbrück Airport)
4,438 mi
7,142 km · 3,856 nm
9h 10m
estimated nonstop flight time
+7h
time difference · heading northeast
See live ISN→AAH fares Phone-only fares on this route — call free
Flight time details
4,438 miles nonstop takes roughly 9h 10m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 7-hour time gain when reading arrival times on your ticket.
The two airports
- ISN — Sloulin Field International Airport · Williston, United States
- AAH — Aachen-Merzbrück Airport · Aachen, Germany
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 AAH
- GKE · Geilenkirchen Air Base11 mi away
- MST · Maastricht Aachen Airport19 mi away
- MGL · Mönchengladbach Airport31 mi away
- LGG · Liège Airport35 mi away
Frequently asked questions
How far is ISN from AAH?
The flight distance from Williston (ISN) to Aachen (AAH) is 4,438 miles (7,142 km, 3,856 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from ISN to AAH?
A nonstop flight takes about 9h 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 Williston and Aachen?
Aachen is 7 hours ahead of Williston.
What is the cheapest way to fly from ISN to AAH?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on ISN–AAH that never appear on search engines, with no booking fees.