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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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938
Miles
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1509
Kilometers
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815
Nautical miles

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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.

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 Flag of 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 Flag of United States
IATA Code: HLN
ICAO Code: KHLN
Coordinates: 46°36′24″N, 111°58′58″W