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ISN to SLC: distance & flight time
Williston (Sloulin Field International Airport) → Salt Lake City (Salt Lake City International Airport)
655 mi
1,053 km · 569 nm
1h 53m
estimated nonstop flight time
-1h
time difference · heading southwest
See live ISN→SLC fares Phone-only fares on this route — call free
Flight time details
655 miles nonstop takes roughly 1h 53m gate to gate, flying southwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 1-hour time set-back when reading arrival times on your ticket.
The two airports
- ISN — Sloulin Field International Airport · Williston, United States
- SLC — Salt Lake City International Airport · Salt Lake City, 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 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 SLC
- HIF · Hill Air Force Base23 mi away
- OGD · Ogden Hinckley Airport28 mi away
- PVU · Provo Municipal Airport42 mi away
- BMC · Brigham City Regional Airport53 mi away
Frequently asked questions
How far is ISN from SLC?
The flight distance from Williston (ISN) to Salt Lake City (SLC) is 655 miles (1,053 km, 569 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from ISN to SLC?
A nonstop flight takes about 1h 53m 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 ISN to SLC?
Nonstop service on ISN–SLC 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 1h 53m nonstop estimate.
What is the time difference between Williston and Salt Lake City?
Salt Lake City is 1 hour behind Williston.
What is the cheapest way to fly from ISN to SLC?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on ISN–SLC that never appear on search engines, with no booking fees.
Why are some ISN to SLC fares phone-only?
Consolidator contracts let us sell certain ISN–SLC 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.