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FRA to ISN: distance & flight time
Frankfurt (Frankfurt am Main Airport) → Williston (Sloulin Field International Airport)
4,549 mi
7,322 km · 3,953 nm
9h 23m
estimated nonstop flight time
-7h
time difference · heading northwest
See live FRA→ISN fares Phone-only fares on this route — call free
Flight time details
4,549 miles nonstop takes roughly 9h 23m 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
- FRA — Frankfurt am Main Airport · Frankfurt, 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 FRA
- QEF · Frankfurt-Egelsbach Airport6 mi away
- WIE · Wiesbaden Army Airfield11 mi away
- ZNF · Hanau Army Air Field20 mi away
- MHG · Mannheim-City Airport39 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 FRA from ISN?
The flight distance from Frankfurt (FRA) to Williston (ISN) is 4,549 miles (7,322 km, 3,953 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from FRA to ISN?
A nonstop flight takes about 9h 23m 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 Frankfurt and Williston?
Williston is 7 hours behind Frankfurt.
What is the cheapest way to fly from FRA to ISN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on FRA–ISN that never appear on search engines, with no booking fees.