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SJC to ISN: distance & flight time
San Jose (Norman Y. Mineta San Jose International Airport) → Williston (Sloulin Field International Airport)
1,186 mi
1,908 km · 1,030 nm
3h 3m
estimated nonstop flight time
+2h
time difference · heading northeast
See live SJC→ISN fares Phone-only fares on this route — call free
Flight time details
1,186 miles nonstop takes roughly 3h 3m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 2-hour time gain when reading arrival times on your ticket.
The two airports
- SJC — Norman Y. Mineta San Jose International Airport · San Jose, United States
- 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 SJC
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 SJC from ISN?
The flight distance from San Jose (SJC) to Williston (ISN) is 1,186 miles (1,908 km, 1,030 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from SJC to ISN?
A nonstop flight takes about 3h 3m gate to gate. Actual time varies with winds, routing and season — eastbound transatlantic flights, for example, are usually faster than the return.
Are there nonstop flights from SJC to ISN?
Nonstop service on SJC–ISN depends on the season and the day of week. Run the fare search on this page with the nonstop filter applied to see current direct options; when there is no nonstop, a single connection through a carrier hub adds roughly 2–4 hours to the 3h 3m nonstop estimate.
What is the time difference between San Jose and Williston?
Williston is 2 hours ahead of San Jose.
What is the cheapest way to fly from SJC to ISN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on SJC–ISN that never appear on search engines, with no booking fees.
Why are some SJC to ISN fares phone-only?
Consolidator contracts let us sell certain SJC–ISN tickets below the price airlines permit us to publish online, so those fares can only be quoted over the phone. Call the travel desk and an agent will check phone-only inventory for your dates.