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LAR to ISN: distance & flight time
Laramie (Laramie Regional Airport) → Williston (Sloulin Field International Airport)
485 mi
780 km · 421 nm
1h 31m
estimated nonstop flight time
+1h
time difference · heading north
See live LAR→ISN fares Phone-only fares on this route — call free
Flight time details
485 miles nonstop takes roughly 1h 31m gate to gate, flying north. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 1-hour time gain when reading arrival times on your ticket.
The two airports
- LAR — Laramie Regional Airport · Laramie, 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 LAR
- CYS · Cheyenne Regional Jerry Olson Field46 mi away
- SAA · Shively Field60 mi away
- FNL · Northern Colorado Regional Airport69 mi away
- DEN · Denver International Airport113 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 LAR from ISN?
The flight distance from Laramie (LAR) to Williston (ISN) is 485 miles (780 km, 421 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from LAR to ISN?
A nonstop flight takes about 1h 31m 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 Laramie and Williston?
Williston is 1 hour ahead of Laramie.
What is the cheapest way to fly from LAR to ISN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on LAR–ISN that never appear on search engines, with no booking fees.