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YSU to ISN: distance & flight time
Summerside (Summerside Airport) → Williston (Sloulin Field International Airport)
1,848 mi
2,974 km · 1,606 nm
4h 5m
estimated nonstop flight time
-2h
time difference · heading west
See live YSU→ISN fares Phone-only fares on this route — call free
Flight time details
1,848 miles nonstop takes roughly 4h 5m 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
- YSU — Summerside Airport · Summerside, 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 YSU
- YYG · Charlottetown Airport36 mi away
- YQM · Greater Moncton International Airport46 mi away
- YCH · Miramichi Airport86 mi away
- YHZ · Halifax / Stanfield International Airport109 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 YSU from ISN?
The flight distance from Summerside (YSU) to Williston (ISN) is 1,848 miles (2,974 km, 1,606 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from YSU to ISN?
A nonstop flight takes about 4h 5m 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 Summerside and Williston?
Williston is 2 hours behind Summerside.
What is the cheapest way to fly from YSU to ISN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on YSU–ISN that never appear on search engines, with no booking fees.