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ISN to YQL: distance & flight time
Williston (Sloulin Field International Airport) → Lethbridge (Lethbridge County Airport)
428 mi
688 km · 372 nm
1h 24m
estimated nonstop flight time
-1h
time difference · heading west
See live ISN→YQL fares Phone-only fares on this route — call free
Flight time details
428 miles nonstop takes roughly 1h 24m 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
- ISN — Sloulin Field International Airport · Williston, United States
- YQL — Lethbridge County Airport · Lethbridge, 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 YQL
- WPC · Pincher Creek Airport54 mi away
- CTB · Cut Bank International Airport73 mi away
- YSD · Suffield Heliport84 mi away
- YXH · Medicine Hat Airport96 mi away
Frequently asked questions
How far is ISN from YQL?
The flight distance from Williston (ISN) to Lethbridge (YQL) is 428 miles (688 km, 372 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from ISN to YQL?
A nonstop flight takes about 1h 24m 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 Williston and Lethbridge?
Lethbridge is 1 hour behind Williston.
What is the cheapest way to fly from ISN to YQL?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on ISN–YQL that never appear on search engines, with no booking fees.