Need help booking?
Unpublished phone-only deals available
DGL to ISN: distance & flight time
Douglas (Douglas Municipal Airport) → Williston (Sloulin Field International Airport)
1,203 mi
1,936 km · 1,046 nm
3h 5m
estimated nonstop flight time
+2h
time difference · heading north
See live DGL→ISN fares Phone-only fares on this route — call free
Flight time details
1,203 miles nonstop takes roughly 3h 5m gate to gate, flying north. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 2-hour time gain when reading arrival times on your ticket.
The two airports
- DGL — Douglas Municipal Airport · Douglas, United States
- 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 DGL
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 DGL from ISN?
The flight distance from Douglas (DGL) to Williston (ISN) is 1,203 miles (1,936 km, 1,046 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from DGL to ISN?
A nonstop flight takes about 3h 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 Douglas and Williston?
Williston is 2 hours ahead of Douglas.
What is the cheapest way to fly from DGL to ISN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on DGL–ISN that never appear on search engines, with no booking fees.