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SMO to ISN: distance & flight time
Santa Monica (Santa Monica Municipal Airport) → Williston (Sloulin Field International Airport)
1,241 mi
1,998 km · 1,079 nm
3h 10m
estimated nonstop flight time
+2h
time difference · heading northeast
See live SMO→ISN fares Phone-only fares on this route — call free
Flight time details
1,241 miles nonstop takes roughly 3h 10m 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
- SMO — Santa Monica Municipal Airport · Santa Monica, 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 SMO
- LAX · Los Angeles International Airport6 mi away
- HHR · Jack Northrop Field Hawthorne Municipal Airport9 mi away
- BUR · Bob Hope Airport14 mi away
- VNY · Van Nuys Airport14 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 SMO from ISN?
The flight distance from Santa Monica (SMO) to Williston (ISN) is 1,241 miles (1,998 km, 1,079 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from SMO to ISN?
A nonstop flight takes about 3h 10m 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 SMO to ISN?
Nonstop service on SMO–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 10m nonstop estimate.
What is the time difference between Santa Monica and Williston?
Williston is 2 hours ahead of Santa Monica.
What is the cheapest way to fly from SMO to ISN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on SMO–ISN that never appear on search engines, with no booking fees.
Why are some SMO to ISN fares phone-only?
Consolidator contracts let us sell certain SMO–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.