How far is Helena, MT, from Lansdowne House?
The distance between Lansdowne House (Lansdowne House Airport) and Helena (Helena Regional Airport) is 1145 miles / 1843 kilometers / 995 nautical miles.
The driving distance from Lansdowne House (YLH) to Helena (HLN) is 1589 miles / 2557 kilometers, and travel time by car is about 35 hours 22 minutes.
Lansdowne House Airport – Helena Regional Airport
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Distance from Lansdowne House to Helena
There are several ways to calculate the distance from Lansdowne House to Helena. Here are two standard methods:
Vincenty's formula (applied above)- 1144.912 miles
- 1842.557 kilometers
- 994.901 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- 1141.799 miles
- 1837.547 kilometers
- 992.196 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 Lansdowne House to Helena?
The estimated flight time from Lansdowne House Airport to Helena Regional Airport is 2 hours and 40 minutes.
What is the time difference between Lansdowne House and Helena?
Flight carbon footprint between Lansdowne House Airport (YLH) and Helena Regional Airport (HLN)
On average, flying from Lansdowne House to Helena generates about 159 kg of CO2 per passenger, and 159 kilograms equals 351 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.
Map of flight path and driving directions from Lansdowne House to Helena
See the map of the shortest flight path between Lansdowne House Airport (YLH) and Helena Regional Airport (HLN).
Airport information
| Origin | Lansdowne House Airport |
|---|---|
| City: | Lansdowne House |
| Country: | Canada  |
| IATA Code: | YLH |
| ICAO Code: | CYLH |
| Coordinates: | 52°11′44″N, 87°56′3″W |
| Destination | Helena Regional Airport |
|---|---|
| City: | Helena, MT |
| Country: | United States  |
| IATA Code: | HLN |
| ICAO Code: | KHLN |
| Coordinates: | 46°36′24″N, 111°58′58″W |