How far is Saint John from Helena, MT?
The distance between Helena (Helena Regional Airport) and Saint John (Saint John Airport) is 2190 miles / 3524 kilometers / 1903 nautical miles.
The driving distance from Helena (HLN) to Saint John (YSJ) is 2676 miles / 4307 kilometers, and travel time by car is about 52 hours 8 minutes.
Helena Regional Airport – Saint John Airport
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Distance from Helena to Saint John
There are several ways to calculate the distance from Helena to Saint John. Here are two standard methods:
Vincenty's formula (applied above)- 2189.969 miles
- 3524.414 kilometers
- 1903.031 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- 2183.750 miles
- 3514.404 kilometers
- 1897.627 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 Saint John?
The estimated flight time from Helena Regional Airport to Saint John Airport is 4 hours and 38 minutes.
What is the time difference between Helena and Saint John?
The time difference between Helena and Saint John is 3 hours. Saint John is 3 hours ahead of Helena.
Flight carbon footprint between Helena Regional Airport (HLN) and Saint John Airport (YSJ)
On average, flying from Helena to Saint John generates about 239 kg of CO2 per passenger, and 239 kilograms equals 527 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 Saint John
See the map of the shortest flight path between Helena Regional Airport (HLN) and Saint John Airport (YSJ).
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 | Saint John Airport |
|---|---|
| City: | Saint John |
| Country: | Canada  |
| IATA Code: | YSJ |
| ICAO Code: | CYSJ |
| Coordinates: | 45°18′57″N, 65°53′25″W |