Need help booking?
Unpublished phone-only deals available
ISN to BNJ: distance & flight time
Williston (Sloulin Field International Airport) → Sankt-Augustin (Bonn-Hangelar Airport)
4,470 mi
7,194 km · 3,884 nm
9h 14m
estimated nonstop flight time
—
time difference · heading northeast
See live ISN→BNJ fares Phone-only fares on this route — call free
Flight time details
4,470 miles nonstop takes roughly 9h 14m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Both airports share the same local time, so schedules read exactly as flown.
The two airports
- ISN — Sloulin Field International Airport · Williston, United States
- BNJ — Bonn-Hangelar Airport · Sankt-Augustin, 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 BNJ
- CGN · Cologne Bonn Airport7 mi away
- FRA · Frankfurt am Main Airport80 mi away
- DUS · Düsseldorf Airport40 mi away
- SGE · Siegerland Airport40 mi away
Frequently asked questions
How far is ISN from BNJ?
The flight distance from Williston (ISN) to Sankt-Augustin (BNJ) is 4,470 miles (7,194 km, 3,884 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from ISN to BNJ?
A nonstop flight takes about 9h 14m 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 cheapest way to fly from ISN to BNJ?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on ISN–BNJ that never appear on search engines, with no booking fees.