Need help booking?
Unpublished phone-only deals available
SUR to ISN: distance & flight time
Summer Beaver (Summer Beaver Airport) → Williston (Sloulin Field International Airport)
733 mi
1,179 km · 637 nm
2h 4m
estimated nonstop flight time
-1h
time difference · heading west
See live SUR→ISN fares Phone-only fares on this route — call free
Flight time details
733 miles nonstop takes roughly 2h 4m 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
- SUR — Summer Beaver Airport · Summer Beaver, 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 SUR
- WNN · Wunnumin Lake Airport34 mi away
- YLH · Lansdowne House Airport44 mi away
- YWP · Webequie Airport52 mi away
- XKS · Kasabonika Airport57 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 SUR from ISN?
The flight distance from Summer Beaver (SUR) to Williston (ISN) is 733 miles (1,179 km, 637 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from SUR to ISN?
A nonstop flight takes about 2h 4m 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 Summer Beaver and Williston?
Williston is 1 hour behind Summer Beaver.
What is the cheapest way to fly from SUR to ISN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on SUR–ISN that never appear on search engines, with no booking fees.