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ISN to JSI: distance & flight time
Williston (Sloulin Field International Airport) → Skiathos (Skiathos Island National Airport)
5,588 mi
8,993 km · 4,856 nm
11h 25m
estimated nonstop flight time
+8h
time difference · heading northeast
See live ISN→JSI fares Phone-only fares on this route — call free
Flight time details
5,588 miles nonstop takes roughly 11h 25m 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
- JSI — Skiathos Island National Airport · Skiathos, Greece
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 JSI
- VOL · Nea Anchialos Airport38 mi away
- SKU · Skiros Airport55 mi away
- LRA · Larisa Airport64 mi away
- ATH · Eleftherios Venizelos International Airport89 mi away
Frequently asked questions
How far is ISN from JSI?
The flight distance from Williston (ISN) to Skiathos (JSI) is 5,588 miles (8,993 km, 4,856 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from ISN to JSI?
A nonstop flight takes about 11h 25m 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 Skiathos?
Skiathos is 8 hours ahead of Williston.
What is the cheapest way to fly from ISN to JSI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on ISN–JSI that never appear on search engines, with no booking fees.