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ISN to HEI: distance & flight time
Williston (Sloulin Field International Airport) → Büsum (Heide-Büsum Airport)
4,351 mi
7,003 km · 3,781 nm
9h
estimated nonstop flight time
+7h
time difference · heading northeast
See live ISN→HEI fares Phone-only fares on this route — call free
Flight time details
4,351 miles nonstop takes roughly 9h 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
- HEI — Heide-Büsum Airport · Büsum, 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 HEI
- PSH · St. Peter-Ording Airport14 mi away
- FCN · Nordholz Naval Airbase28 mi away
- WBG · Schleswig Air Base33 mi away
- HGL · Helgoland-Düne Airport40 mi away
Frequently asked questions
How far is ISN from HEI?
The flight distance from Williston (ISN) to Büsum (HEI) is 4,351 miles (7,003 km, 3,781 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from ISN to HEI?
A nonstop flight takes about 9h 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 Büsum?
Büsum is 7 hours ahead of Williston.
What is the cheapest way to fly from ISN to HEI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on ISN–HEI that never appear on search engines, with no booking fees.