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ISN to XSI: distance & flight time
Williston (Sloulin Field International Airport) → South Indian Lake (South Indian Lake Airport)
627 mi
1,010 km · 545 nm
1h 50m
estimated nonstop flight time
Same time
time difference · heading north
See live ISN→XSI fares Phone-only fares on this route — call free
Flight time details
627 miles nonstop takes roughly 1h 50m gate to gate, flying north. 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
- XSI — South Indian Lake Airport · South Indian Lake, 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 XSI
- YLR · Leaf Rapids Airport45 mi away
- YTH · Thompson Airport79 mi away
- YYL · Lynn Lake Airport82 mi away
- KES · Kelsey Airport105 mi away
Frequently asked questions
How far is ISN from XSI?
The flight distance from Williston (ISN) to South Indian Lake (XSI) is 627 miles (1,010 km, 545 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from ISN to XSI?
A nonstop flight takes about 1h 50m 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 XSI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on ISN–XSI that never appear on search engines, with no booking fees.