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ISN to KFS: distance & flight time
Williston (Sloulin Field International Airport) → Kastamonu (Kastamonu Airport)
5,730 mi
9,221 km · 4,979 nm
11h 42m
estimated nonstop flight time
+8h
time difference · heading northeast
See live ISN→KFS fares Phone-only fares on this route — call free
Flight time details
5,730 miles nonstop takes roughly 11h 42m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 8-hour time gain when reading arrival times on your ticket.
The two airports
- ISN — Sloulin Field International Airport · Williston, United States
- KFS — Kastamonu Airport · Kastamonu, Turkey
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 KFS
- NOP · Sinop Airport82 mi away
- ONQ · Zonguldak Airport89 mi away
- ESB · Esenboğa International Airport92 mi away
- MZH · Amasya Merzifon Airport96 mi away
Frequently asked questions
How far is ISN from KFS?
The flight distance from Williston (ISN) to Kastamonu (KFS) is 5,730 miles (9,221 km, 4,979 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from ISN to KFS?
A nonstop flight takes about 11h 42m 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 Kastamonu?
Kastamonu is 8 hours ahead of Williston.
What is the cheapest way to fly from ISN to KFS?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on ISN–KFS that never appear on search engines, with no booking fees.