How far is St. Anthony from Helena, MT?
The distance between Helena (Helena Regional Airport) and St. Anthony (St. Anthony Airport) is 2500 miles / 4024 kilometers / 2173 nautical miles.
The driving distance from Helena (HLN) to St. Anthony (YAY) is 3758 miles / 6048 kilometers, and travel time by car is about 81 hours 33 minutes.
Helena Regional Airport – St. Anthony Airport
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Distance from Helena to St. Anthony
There are several ways to calculate the distance from Helena to St. Anthony. Here are two standard methods:
Vincenty's formula (applied above)- 2500.490 miles
- 4024.148 kilometers
- 2172.866 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- 2493.068 miles
- 4012.205 kilometers
- 2166.417 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 St. Anthony?
The estimated flight time from Helena Regional Airport to St. Anthony Airport is 5 hours and 14 minutes.
What is the time difference between Helena and St. Anthony?
Flight carbon footprint between Helena Regional Airport (HLN) and St. Anthony Airport (YAY)
On average, flying from Helena to St. Anthony generates about 275 kg of CO2 per passenger, and 275 kilograms equals 607 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 St. Anthony
See the map of the shortest flight path between Helena Regional Airport (HLN) and St. Anthony Airport (YAY).
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 | St. Anthony Airport |
|---|---|
| City: | St. Anthony |
| Country: | Canada  |
| IATA Code: | YAY |
| ICAO Code: | CYAY |
| Coordinates: | 51°23′30″N, 56°4′59″W |