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ISN to GRM: distance & flight time
Williston (Sloulin Field International Airport) → Grand Marais (Grand Marais Cook County Airport)
613 mi
986 km · 532 nm
1h 48m
estimated nonstop flight time
Same time
time difference · heading east
See live ISN→GRM fares Phone-only fares on this route — call free
Flight time details
613 miles nonstop takes roughly 1h 48m 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
- GRM — Grand Marais Cook County Airport · Grand Marais, 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 GRM
- YQT · Thunder Bay Airport61 mi away
- LYU · Ely Municipal Airport67 mi away
- YIB · Atikokan Municipal Airport87 mi away
- CMX · Houghton County Memorial Airport100 mi away
Frequently asked questions
How far is ISN from GRM?
The flight distance from Williston (ISN) to Grand Marais (GRM) is 613 miles (986 km, 532 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from ISN to GRM?
A nonstop flight takes about 1h 48m 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 GRM?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on ISN–GRM that never appear on search engines, with no booking fees.