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YSJ to ISN: distance & flight time
St. John (Saint John Airport) → Williston (Sloulin Field International Airport)
1,780 mi
2,865 km · 1,547 nm
3h 57m
estimated nonstop flight time
-2h
time difference · heading west
See live YSJ→ISN fares Phone-only fares on this route — call free
Flight time details
1,780 miles nonstop takes roughly 3h 57m gate to gate, flying west. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 2-hour time set-back when reading arrival times on your ticket.
The two airports
- YSJ — Saint John Airport · St. John, 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 YSJ
- YFC · Fredericton Airport49 mi away
- YZX · CFB Greenwood53 mi away
- YDG · Digby / Annapolis Regional Airport53 mi away
- YQM · Greater Moncton International Airport80 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 YSJ from ISN?
The flight distance from St. John (YSJ) to Williston (ISN) is 1,780 miles (2,865 km, 1,547 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from YSJ to ISN?
A nonstop flight takes about 3h 57m 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 St. John and Williston?
Williston is 2 hours behind St. John.
What is the cheapest way to fly from YSJ to ISN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on YSJ–ISN that never appear on search engines, with no booking fees.