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ISN to GFK: distance & flight time
Williston (Sloulin Field International Airport) → Grand Forks (Grand Forks International Airport)
299 mi
481 km · 260 nm
1h 15m
estimated nonstop flight time
Same time
time difference · heading east
See live ISN→GFK fares Phone-only fares on this route — call free
Flight time details
299 miles nonstop takes roughly 1h 15m gate to gate, flying east. Add 45–90 minutes per connection if there's no nonstop service. Both airports share the same local time, so schedules read exactly as flown.
The two airports
- ISN — Sloulin Field International Airport · Williston, United States
- GFK — Grand Forks International Airport · Grand Forks, 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 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 GFK
- RDR · Grand Forks Air Force Base10 mi away
- TVF · Thief River Falls Regional Airport47 mi away
- PMB · Pembina Municipal Airport69 mi away
- FAR · Hector International Airport73 mi away
Frequently asked questions
How far is ISN from GFK?
The flight distance from Williston (ISN) to Grand Forks (GFK) is 299 miles (481 km, 260 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from ISN to GFK?
A nonstop flight takes about 1h 15m 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 cheapest way to fly from ISN to GFK?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on ISN–GFK that never appear on search engines, with no booking fees.