Need help booking?
Unpublished phone-only deals available
GRM to MSA: distance & flight time
Grand Marais (Grand Marais Cook County Airport) → Muskrat Dam (Muskrat Dam Airport)
392 mi
631 km · 340 nm
1h 30m
estimated nonstop flight time
Same time
time difference · heading north
See live GRM→MSA fares Phone-only fares on this route — call free
Flight time details
392 miles nonstop takes roughly 1h 30m gate to gate, flying north. 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
- GRM — Grand Marais Cook County Airport · Grand Marais, United States
- MSA — Muskrat Dam Airport · Muskrat Dam, 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 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
Near MSA
- ZPB · Sachigo Lake Airport36 mi away
- ZRJ · Round Lake (Weagamow Lake) Airport39 mi away
- XBE · Bearskin Lake Airport47 mi away
- KEW · Keewaywin Airport54 mi away
Frequently asked questions
How far is GRM from MSA?
The flight distance from Grand Marais (GRM) to Muskrat Dam (MSA) is 392 miles (631 km, 340 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from GRM to MSA?
A nonstop flight takes about 1h 30m 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 GRM to MSA?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on GRM–MSA that never appear on search engines, with no booking fees.