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YZH to ISN: distance & flight time
Slave Lake (Slave Lake Airport) → Williston (Sloulin Field International Airport)
683 mi
1,099 km · 594 nm
1h 57m
estimated nonstop flight time
+1h
time difference · heading southeast
See live YZH→ISN fares Phone-only fares on this route — call free
Flight time details
683 miles nonstop takes roughly 1h 57m 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
- YZH — Slave Lake Airport · Slave Lake, 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 YZH
- YZU · Whitecourt Airport89 mi away
- YPE · Peace River Airport122 mi away
- YXD · Edmonton City Centre (Blatchford Field) Airport129 mi away
- YET · Edson Airport136 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 YZH from ISN?
The flight distance from Slave Lake (YZH) to Williston (ISN) is 683 miles (1,099 km, 594 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from YZH to ISN?
A nonstop flight takes about 1h 57m 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 YZH to ISN?
Nonstop service on YZH–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 57m nonstop estimate.
What is the time difference between Slave Lake and Williston?
Williston is 1 hour ahead of Slave Lake.
What is the cheapest way to fly from YZH to ISN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on YZH–ISN that never appear on search engines, with no booking fees.
Why are some YZH to ISN fares phone-only?
Consolidator contracts let us sell certain YZH–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.