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How far is Helena, MT, from Harrisburg, PA?

The distance between Harrisburg (Harrisburg International Airport) and Helena (Helena Regional Airport) is 1811 miles / 2914 kilometers / 1574 nautical miles.

The driving distance from Harrisburg (MDT) to Helena (HLN) is 2133 miles / 3432 kilometers, and travel time by car is about 38 hours 32 minutes.

Harrisburg International Airport – Helena Regional Airport

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1811
Miles
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2914
Kilometers
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1574
Nautical miles

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Distance from Harrisburg to Helena

There are several ways to calculate the distance from Harrisburg to Helena. Here are two standard methods:

Vincenty's formula (applied above)
  • 1810.958 miles
  • 2914.454 kilometers
  • 1573.679 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
  • 1806.464 miles
  • 2907.222 kilometers
  • 1569.774 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 Harrisburg to Helena?

The estimated flight time from Harrisburg International Airport to Helena Regional Airport is 3 hours and 55 minutes.

Flight carbon footprint between Harrisburg International Airport (MDT) and Helena Regional Airport (HLN)

On average, flying from Harrisburg to Helena generates about 201 kg of CO2 per passenger, and 201 kilograms equals 443 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path and driving directions from Harrisburg to Helena

See the map of the shortest flight path between Harrisburg International Airport (MDT) and Helena Regional Airport (HLN).

Airport information

Origin Harrisburg International Airport
City: Harrisburg, PA
Country: United States Flag of United States
IATA Code: MDT
ICAO Code: KMDT
Coordinates: 40°11′36″N, 76°45′48″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