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How far is Juneau, AK, from Helena, MT?

The distance between Helena (Helena Regional Airport) and Juneau (Juneau International Airport) is 1242 miles / 1999 kilometers / 1080 nautical miles.

The driving distance from Helena (HLN) to Juneau (JNU) is 1724 miles / 2775 kilometers, and travel time by car is about 41 hours 38 minutes.

Helena Regional Airport – Juneau International Airport

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1242
Miles
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1999
Kilometers
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1080
Nautical miles

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Distance from Helena to Juneau

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

Vincenty's formula (applied above)
  • 1242.383 miles
  • 1999.422 kilometers
  • 1079.601 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
  • 1239.721 miles
  • 1995.138 kilometers
  • 1077.288 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 Helena to Juneau?

The estimated flight time from Helena Regional Airport to Juneau International Airport is 2 hours and 51 minutes.

Flight carbon footprint between Helena Regional Airport (HLN) and Juneau International Airport (JNU)

On average, flying from Helena to Juneau generates about 163 kg of CO2 per passenger, and 163 kilograms equals 360 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path and driving directions from Helena to Juneau

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

Airport information

Origin 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
Destination Juneau International Airport
City: Juneau, AK
Country: United States Flag of United States
IATA Code: JNU
ICAO Code: PAJN
Coordinates: 58°21′28″N, 134°34′59″W