How far is Helena, MT, from St. Anthony?
The distance between St. Anthony (St. Anthony Airport) and Helena (Helena Regional Airport) is 2500 miles / 4024 kilometers / 2173 nautical miles.
The driving distance from St. Anthony (YAY) to Helena (HLN) is 3752 miles / 6039 kilometers, and travel time by car is about 81 hours 28 minutes.
St. Anthony Airport – Helena Regional Airport
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Distance from St. Anthony to Helena
There are several ways to calculate the distance from St. Anthony to Helena. 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 St. Anthony to Helena?
The estimated flight time from St. Anthony Airport to Helena Regional Airport is 5 hours and 14 minutes.
What is the time difference between St. Anthony and Helena?
Flight carbon footprint between St. Anthony Airport (YAY) and Helena Regional Airport (HLN)
On average, flying from St. Anthony to Helena 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 St. Anthony to Helena
See the map of the shortest flight path between St. Anthony Airport (YAY) and Helena Regional Airport (HLN).
Airport information
| Origin | St. Anthony Airport |
|---|---|
| City: | St. Anthony |
| Country: | Canada  |
| IATA Code: | YAY |
| ICAO Code: | CYAY |
| Coordinates: | 51°23′30″N, 56°4′59″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 |