How far is Helena, MT, from Duluth, MN?
The distance between Duluth (Duluth International Airport) and Helena (Helena Regional Airport) is 938 miles / 1509 kilometers / 815 nautical miles.
The driving distance from Duluth (DLH) to Helena (HLN) is 1083 miles / 1743 kilometers, and travel time by car is about 19 hours 44 minutes.
Duluth International Airport – Helena Regional Airport
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Distance from Duluth to Helena
There are several ways to calculate the distance from Duluth to Helena. Here are two standard methods:
Vincenty's formula (applied above)- 937.674 miles
- 1509.040 kilometers
- 814.816 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- 934.963 miles
- 1504.678 kilometers
- 812.461 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 Duluth to Helena?
The estimated flight time from Duluth International Airport to Helena Regional Airport is 2 hours and 16 minutes.
What is the time difference between Duluth and Helena?
The time difference between Duluth and Helena is 1 hour. Helena is 1 hour behind Duluth.
Flight carbon footprint between Duluth International Airport (DLH) and Helena Regional Airport (HLN)
On average, flying from Duluth to Helena generates about 146 kg of CO2 per passenger, and 146 kilograms equals 323 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.
Map of flight path and driving directions from Duluth to Helena
See the map of the shortest flight path between Duluth International Airport (DLH) and Helena Regional Airport (HLN).
Airport information
| Origin | Duluth International Airport |
|---|---|
| City: | Duluth, MN |
| Country: | United States  |
| IATA Code: | DLH |
| ICAO Code: | KDLH |
| Coordinates: | 46°50′31″N, 92°11′36″W |
| Destination | Helena Regional Airport |
|---|---|
| City: | Helena, MT |
| Country: | United States |
| IATA Code: | HLN |
| ICAO Code: | KHLN |
| Coordinates: | 46°36′24″N, 111°58′58″W |