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SFO to ISN: distance & flight time
San Francisco (San Francisco International Airport) → Williston (Sloulin Field International Airport)
1,191 mi
1,917 km · 1,035 nm
3h 3m
estimated nonstop flight time
+2h
time difference · heading northeast
See live SFO→ISN fares Phone-only fares on this route — call free
Flight time details
1,191 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
- SFO — San Francisco International Airport · San Francisco, 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 SFO
- SQL · San Carlos Airport10 mi away
- HAF · Half Moon Bay Airport10 mi away
- OAK · Metropolitan Oakland International Airport11 mi away
- NGZ · Alameda Naval Air Station12 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 SFO from ISN?
The flight distance from San Francisco (SFO) to Williston (ISN) is 1,191 miles (1,917 km, 1,035 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from SFO 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.
What is the time difference between San Francisco and Williston?
Williston is 2 hours ahead of San Francisco.
What is the cheapest way to fly from SFO to ISN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on SFO–ISN that never appear on search engines, with no booking fees.