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ISN to YDF: distance & flight time
Williston (Sloulin Field International Airport) → Deer Lake (Deer Lake Airport)
2,077 mi
3,343 km · 1,805 nm
4h 32m
estimated nonstop flight time
+2.5h
time difference · heading east
See live ISN→YDF fares Phone-only fares on this route — call free
Flight time details
2,077 miles nonstop takes roughly 4h 32m gate to gate, flying east. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 2.5-hour time gain when reading arrival times on your ticket.
The two airports
- ISN — Sloulin Field International Airport · Williston, United States
- YDF — Deer Lake Airport · Deer 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 YDF
- YJT · Stephenville Airport70 mi away
- YQX · Gander International Airport129 mi away
- ZLT · La Tabatière Airport132 mi away
- YHR · Chevery Airport133 mi away
Frequently asked questions
How far is ISN from YDF?
The flight distance from Williston (ISN) to Deer Lake (YDF) is 2,077 miles (3,343 km, 1,805 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from ISN to YDF?
A nonstop flight takes about 4h 32m gate to gate. Actual time varies with winds, routing and season — eastbound transatlantic flights, for example, are usually faster than the return.
Are there nonstop flights from ISN to YDF?
Nonstop service on ISN–YDF depends on the season and the day of week. Run the fare search on this page with the nonstop filter applied to see current direct options; when there is no nonstop, a single connection through a carrier hub adds roughly 2–4 hours to the 4h 32m nonstop estimate.
What is the time difference between Williston and Deer Lake?
Deer Lake is 2.5 hours ahead of Williston.
What is the cheapest way to fly from ISN to YDF?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on ISN–YDF that never appear on search engines, with no booking fees.
Why are some ISN to YDF fares phone-only?
Consolidator contracts let us sell certain ISN–YDF tickets below the price airlines permit us to publish online, so those fares can only be quoted over the phone. Call the travel desk and an agent will check phone-only inventory for your dates.