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How far is Lafayette, LA, from Helena, MT?

The distance between Helena (Helena Regional Airport) and Lafayette (Lafayette Regional Airport) is 1559 miles / 2509 kilometers / 1354 nautical miles.

The driving distance from Helena (HLN) to Lafayette (LFT) is 1975 miles / 3178 kilometers, and travel time by car is about 35 hours 0 minutes.

Helena Regional Airport – Lafayette Regional Airport

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1559
Miles
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2509
Kilometers
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1354
Nautical miles

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Distance from Helena to Lafayette

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

Vincenty's formula (applied above)
  • 1558.715 miles
  • 2508.509 kilometers
  • 1354.486 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
  • 1558.350 miles
  • 2507.921 kilometers
  • 1354.169 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 Lafayette?

The estimated flight time from Helena Regional Airport to Lafayette Regional Airport is 3 hours and 27 minutes.

Flight carbon footprint between Helena Regional Airport (HLN) and Lafayette Regional Airport (LFT)

On average, flying from Helena to Lafayette generates about 183 kg of CO2 per passenger, and 183 kilograms equals 404 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 Lafayette

See the map of the shortest flight path between Helena Regional Airport (HLN) and Lafayette Regional Airport (LFT).

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 Lafayette Regional Airport
City: Lafayette, LA
Country: United States Flag of United States
IATA Code: LFT
ICAO Code: KLFT
Coordinates: 30°12′19″N, 91°59′15″W