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YBY to ISN: distance & flight time
Bonnyville (Bonnyville Airport) → Williston (Sloulin Field International Airport)
522 mi
841 km · 454 nm
1h 36m
estimated nonstop flight time
+1h
time difference · heading southeast
See live YBY→ISN fares Phone-only fares on this route — call free
Flight time details
522 miles nonstop takes roughly 1h 36m 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
- YBY — Bonnyville Airport · Bonnyville, 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 YBY
- YOD · CFB Cold Lake20 mi away
- YVG · Vermilion Airport66 mi away
- YLL · Lloydminster Airport74 mi away
- YLJ · Meadow Lake Airport91 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 YBY from ISN?
The flight distance from Bonnyville (YBY) to Williston (ISN) is 522 miles (841 km, 454 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from YBY to ISN?
A nonstop flight takes about 1h 36m 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 YBY to ISN?
Nonstop service on YBY–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 1h 36m nonstop estimate.
What is the time difference between Bonnyville and Williston?
Williston is 1 hour ahead of Bonnyville.
What is the cheapest way to fly from YBY to ISN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on YBY–ISN that never appear on search engines, with no booking fees.
Why are some YBY to ISN fares phone-only?
Consolidator contracts let us sell certain YBY–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.