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YQL to ISN: distance & flight time
Lethbridge (Lethbridge County Airport) → Williston (Sloulin Field International Airport)
428 mi
688 km · 372 nm
1h 24m
estimated nonstop flight time
+1h
time difference · heading east
See live YQL→ISN fares Phone-only fares on this route — call free
Flight time details
428 miles nonstop takes roughly 1h 24m gate to gate, flying east. 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
- YQL — Lethbridge County Airport · Lethbridge, 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 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
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 YQL from ISN?
The flight distance from Lethbridge (YQL) to Williston (ISN) is 428 miles (688 km, 372 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from YQL to ISN?
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 Lethbridge and Williston?
Williston is 1 hour ahead of Lethbridge.
What is the cheapest way to fly from YQL to ISN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on YQL–ISN that never appear on search engines, with no booking fees.