Need help booking?
Unpublished phone-only deals available
YDF to ISN: distance & flight time
Deer Lake (Deer Lake Airport) → Williston (Sloulin Field International Airport)
2,077 mi
3,343 km · 1,805 nm
4h 32m
estimated nonstop flight time
-2.5h
time difference · heading west
See live YDF→ISN fares Phone-only fares on this route — call free
Flight time details
2,077 miles nonstop takes roughly 4h 32m gate to gate, flying west. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 2.5-hour time set-back when reading arrival times on your ticket.
The two airports
- YDF — Deer Lake Airport · Deer Lake, 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 YDF
- YJT · Stephenville Airport70 mi away
- YQX · Gander International Airport129 mi away
- ZLT · La Tabatière Airport132 mi away
- YHR · Chevery Airport133 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 YDF from ISN?
The flight distance from Deer Lake (YDF) to Williston (ISN) 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 YDF to ISN?
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 YDF to ISN?
Nonstop service on YDF–ISN 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 Deer Lake and Williston?
Williston is 2.5 hours behind Deer Lake.
What is the cheapest way to fly from YDF to ISN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on YDF–ISN that never appear on search engines, with no booking fees.
Why are some YDF to ISN fares phone-only?
Consolidator contracts let us sell certain YDF–ISN 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.