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OKD to ISN: distance & flight time
Sapporo (Okadama Airport) → Williston (Sloulin Field International Airport)
4,996 mi
8,041 km · 4,342 nm
10h 16m
estimated nonstop flight time
-14h
time difference · heading northeast
See live OKD→ISN fares Phone-only fares on this route — call free
Flight time details
4,996 miles nonstop takes roughly 10h 16m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 14-hour time set-back when reading arrival times on your ticket.
The two airports
- OKD — Okadama Airport · Sapporo, Japan
- 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 OKD
- CTS · New Chitose Airport28 mi away
- AKJ · Asahikawa Airport66 mi away
- OBO · Tokachi-Obihiro Airport97 mi away
- HKD · Hakodate Airport97 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 OKD from ISN?
The flight distance from Sapporo (OKD) to Williston (ISN) is 4,996 miles (8,041 km, 4,342 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from OKD to ISN?
A nonstop flight takes about 10h 16m 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 Sapporo and Williston?
Williston is 14 hours behind Sapporo.
What is the cheapest way to fly from OKD to ISN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on OKD–ISN that never appear on search engines, with no booking fees.