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How far is Sioux Lookout from Helena, MT?

The distance between Helena (Helena Regional Airport) and Sioux Lookout (Sioux Lookout Airport) is 952 miles / 1533 kilometers / 828 nautical miles.

The driving distance from Helena (HLN) to Sioux Lookout (YXL) is 1194 miles / 1922 kilometers, and travel time by car is about 24 hours 15 minutes.

Helena Regional Airport – Sioux Lookout Airport

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952
Miles
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1533
Kilometers
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828
Nautical miles

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Distance from Helena to Sioux Lookout

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

Vincenty's formula (applied above)
  • 952.494 miles
  • 1532.890 kilometers
  • 827.694 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
  • 949.833 miles
  • 1528.609 kilometers
  • 825.383 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 Sioux Lookout?

The estimated flight time from Helena Regional Airport to Sioux Lookout Airport is 2 hours and 18 minutes.

Flight carbon footprint between Helena Regional Airport (HLN) and Sioux Lookout Airport (YXL)

On average, flying from Helena to Sioux Lookout generates about 148 kg of CO2 per passenger, and 148 kilograms equals 325 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 Sioux Lookout

See the map of the shortest flight path between Helena Regional Airport (HLN) and Sioux Lookout Airport (YXL).

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 Sioux Lookout Airport
City: Sioux Lookout
Country: Canada Flag of Canada
IATA Code: YXL
ICAO Code: CYXL
Coordinates: 50°6′50″N, 91°54′19″W