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ISN to YSL: distance & flight time
Williston (Sloulin Field International Airport) → St Leonard (St Leonard Airport)
1,652 mi
2,659 km · 1,436 nm
3h 42m
estimated nonstop flight time
—
time difference · heading east
See live ISN→YSL fares Phone-only fares on this route — call free
Flight time details
1,652 miles nonstop takes roughly 3h 42m gate to gate, flying east. Add 45–90 minutes per connection if there's no nonstop service. Both airports share the same local time, so schedules read exactly as flown.
The two airports
- ISN — Sloulin Field International Airport · Williston, United States
- YSL — St Leonard Airport · St Leonard, Canada
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 YSL
- CAR · Caribou Municipal Airport22 mi away
- WFK · Northern Aroostook Regional Airport24 mi away
- PQI · Northern Maine Regional Airport at Presque Isle34 mi away
- HUL · Houlton International Airport71 mi away
Frequently asked questions
How far is ISN from YSL?
The flight distance from Williston (ISN) to St Leonard (YSL) is 1,652 miles (2,659 km, 1,436 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from ISN to YSL?
A nonstop flight takes about 3h 42m 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 cheapest way to fly from ISN to YSL?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on ISN–YSL that never appear on search engines, with no booking fees.