How far is Duluth, MN, from Great Falls, MT?
The distance between Great Falls (Great Falls International Airport) and Duluth (Duluth International Airport) is 902 miles / 1452 kilometers / 784 nautical miles.
The driving distance from Great Falls (GTF) to Duluth (DLH) is 1003 miles / 1614 kilometers, and travel time by car is about 18 hours 44 minutes.
Great Falls International Airport – Duluth International Airport
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Distance from Great Falls to Duluth
There are several ways to calculate the distance from Great Falls to Duluth. Here are two standard methods:
Vincenty's formula (applied above)- 902.345 miles
- 1452.184 kilometers
- 784.117 nautical miles
Vincenty's formula calculates the distance between latitude/longitude points on the earth's surface using an ellipsoidal model of the planet.
Haversine formula- 899.720 miles
- 1447.959 kilometers
- 781.835 nautical miles
The haversine formula calculates the distance between latitude/longitude points assuming a spherical earth (great-circle distance – the shortest distance between two points).
How long does it take to fly from Great Falls to Duluth?
The estimated flight time from Great Falls International Airport to Duluth International Airport is 2 hours and 12 minutes.
What is the time difference between Great Falls and Duluth?
The time difference between Great Falls and Duluth is 1 hour. Duluth is 1 hour ahead of Great Falls.
Flight carbon footprint between Great Falls International Airport (GTF) and Duluth International Airport (DLH)
On average, flying from Great Falls to Duluth generates about 144 kg of CO2 per passenger, and 144 kilograms equals 317 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.
Map of flight path and driving directions from Great Falls to Duluth
See the map of the shortest flight path between Great Falls International Airport (GTF) and Duluth International Airport (DLH).
Airport information
| Origin | Great Falls International Airport |
|---|---|
| City: | Great Falls, MT |
| Country: | United States  |
| IATA Code: | GTF |
| ICAO Code: | KGTF |
| Coordinates: | 47°28′55″N, 111°22′15″W |
| Destination | Duluth International Airport |
|---|---|
| City: | Duluth, MN |
| Country: | United States |
| IATA Code: | DLH |
| ICAO Code: | KDLH |
| Coordinates: | 46°50′31″N, 92°11′36″W |