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ISN to SMN: distance & flight time
Williston (Sloulin Field International Airport) → Salmon (Lemhi County Airport)
529 mi
851 km · 460 nm
1h 37m
estimated nonstop flight time
-1h
time difference · heading west
See live ISN→SMN fares Phone-only fares on this route — call free
Flight time details
529 miles nonstop takes roughly 1h 37m gate to gate, flying west. 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
- SMN — Lemhi County Airport · Salmon, 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 SMN
- BTM · Bert Mooney Airport88 mi away
- MYL · McCall Municipal Airport110 mi away
- SUN · Friedman Memorial Airport114 mi away
- MSO · Missoula International Airport124 mi away
Frequently asked questions
How far is ISN from SMN?
The flight distance from Williston (ISN) to Salmon (SMN) is 529 miles (851 km, 460 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from ISN to SMN?
A nonstop flight takes about 1h 37m 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 Williston and Salmon?
Salmon is 1 hour behind Williston.
What is the cheapest way to fly from ISN to SMN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on ISN–SMN that never appear on search engines, with no booking fees.