How far is Lansdowne House from Helena, MT?
The distance between Helena (Helena Regional Airport) and Lansdowne House (Lansdowne House Airport) is 1145 miles / 1843 kilometers / 995 nautical miles.
The driving distance from Helena (HLN) to Lansdowne House (YLH) is 1589 miles / 2558 kilometers, and travel time by car is about 35 hours 16 minutes.
Helena Regional Airport – Lansdowne House Airport
Search flights
Distance from Helena to Lansdowne House
There are several ways to calculate the distance from Helena to Lansdowne House. 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 Helena to Lansdowne House?
The estimated flight time from Helena Regional Airport to Lansdowne House Airport is 2 hours and 40 minutes.
What is the time difference between Helena and Lansdowne House?
Flight carbon footprint between Helena Regional Airport (HLN) and Lansdowne House Airport (YLH)
On average, flying from Helena to Lansdowne House 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 Helena to Lansdowne House
See the map of the shortest flight path between Helena Regional Airport (HLN) and Lansdowne House Airport (YLH).
Airport information
| Origin | Helena Regional Airport |
|---|---|
| City: | Helena, MT |
| Country: | United States  |
| IATA Code: | HLN |
| ICAO Code: | KHLN |
| Coordinates: | 46°36′24″N, 111°58′58″W |
| Destination | Lansdowne House Airport |
|---|---|
| City: | Lansdowne House |
| Country: | Canada  |
| IATA Code: | YLH |
| ICAO Code: | CYLH |
| Coordinates: | 52°11′44″N, 87°56′3″W |