Need help booking?
Unpublished phone-only deals available
GRM to SDF: distance & flight time
Grand Marais (Grand Marais Cook County Airport) → Louisville (Louisville International Standiford Field)
707 mi
1,139 km · 615 nm
2h
estimated nonstop flight time
+1h
time difference · heading south
See live GRM→SDF fares Phone-only fares on this route — call free
Flight time details
707 miles nonstop takes roughly 2h gate to gate, flying south. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 1-hour time gain when reading arrival times on your ticket.
The two airports
- GRM — Grand Marais Cook County Airport · Grand Marais, United States
- SDF — Louisville International Standiford Field · Louisville, 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 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 SDF
- LOU · Bowman Field5 mi away
- FTK · Godman Army Air Field22 mi away
- FFT · Capital City Airport45 mi away
- LEX · Blue Grass Airport62 mi away
Frequently asked questions
How far is GRM from SDF?
The flight distance from Grand Marais (GRM) to Louisville (SDF) is 707 miles (1,139 km, 615 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from GRM to SDF?
A nonstop flight takes about 2h 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 Grand Marais and Louisville?
Louisville is 1 hour ahead of Grand Marais.
What is the cheapest way to fly from GRM to SDF?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on GRM–SDF that never appear on search engines, with no booking fees.