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ISN to KLU: distance & flight time
Williston (Sloulin Field International Airport) → Klagenfurt (Klagenfurt Airport)
4,899 mi
7,885 km · 4,257 nm
10h 4m
estimated nonstop flight time
+7h
time difference · heading northeast
See live ISN→KLU fares Phone-only fares on this route — call free
Flight time details
4,899 miles nonstop takes roughly 10h 4m 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
- KLU — Klagenfurt Airport · Klagenfurt, Austria
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 KLU
- LJU · Ljubljana Jože Pučnik Airport29 mi away
- GRZ · Graz Airport57 mi away
- MBX · Maribor Airport65 mi away
- TRS · Trieste–Friuli Venezia Giulia Airport70 mi away
Frequently asked questions
How far is ISN from KLU?
The flight distance from Williston (ISN) to Klagenfurt (KLU) is 4,899 miles (7,885 km, 4,257 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from ISN to KLU?
A nonstop flight takes about 10h 4m 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 Klagenfurt?
Klagenfurt is 7 hours ahead of Williston.
What is the cheapest way to fly from ISN to KLU?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on ISN–KLU that never appear on search engines, with no booking fees.