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YHU to ISN: distance & flight time
Montreal (Montréal / Saint-Hubert Airport) → Williston (Sloulin Field International Airport)
1,431 mi
2,302 km · 1,243 nm
3h 35m
estimated nonstop flight time
-1h
time difference · heading west
See live YHU→ISN fares Phone-only fares on this route — call free
Flight time details
1,431 miles nonstop takes roughly 3h 35m 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
- YHU — Montréal / Saint-Hubert Airport · Montreal, 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 YHU
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 YHU from ISN?
The flight distance from Montreal (YHU) to Williston (ISN) is 1,431 miles (2,302 km, 1,243 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from YHU to ISN?
A nonstop flight takes about 3h 35m 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 Montreal and Williston?
Williston is 1 hour behind Montreal.
What is the cheapest way to fly from YHU to ISN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on YHU–ISN that never appear on search engines, with no booking fees.