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YMM to ISN: distance & flight time
Fort Mcmurray (Fort McMurray Airport) → Williston (Sloulin Field International Airport)
666 mi
1,072 km · 579 nm
1h 55m
estimated nonstop flight time
+1h
time difference · heading southeast
See live YMM→ISN fares Phone-only fares on this route — call free
Flight time details
666 miles nonstop takes roughly 1h 55m gate to gate, flying southeast. 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
- YMM — Fort McMurray Airport · Fort Mcmurray, Canada
- 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 YMM
- HZP · Fort Mackay / Horizon Airport53 mi away
- YVT · Buffalo Narrows Airport121 mi away
- YPY · Fort Chipewyan Airport146 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 YMM from ISN?
The flight distance from Fort Mcmurray (YMM) to Williston (ISN) is 666 miles (1,072 km, 579 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from YMM to ISN?
A nonstop flight takes about 1h 55m 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 Fort Mcmurray and Williston?
Williston is 1 hour ahead of Fort Mcmurray.
What is the cheapest way to fly from YMM to ISN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on YMM–ISN that never appear on search engines, with no booking fees.