How far is Stephenville from Helena, MT?
The distance between Helena (Helena Regional Airport) and Stephenville (Stephenville International Airport) is 2450 miles / 3943 kilometers / 2129 nautical miles.
The driving distance from Helena (HLN) to Stephenville (YJT) is 3976 miles / 6399 kilometers, and travel time by car is about 85 hours 46 minutes.
Helena Regional Airport – Stephenville International Airport
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Distance from Helena to Stephenville
There are several ways to calculate the distance from Helena to Stephenville. Here are two standard methods:
Vincenty's formula (applied above)- 2450.050 miles
- 3942.973 kilometers
- 2129.035 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- 2442.873 miles
- 3931.423 kilometers
- 2122.799 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 Stephenville?
The estimated flight time from Helena Regional Airport to Stephenville International Airport is 5 hours and 8 minutes.
What is the time difference between Helena and Stephenville?
Flight carbon footprint between Helena Regional Airport (HLN) and Stephenville International Airport (YJT)
On average, flying from Helena to Stephenville generates about 269 kg of CO2 per passenger, and 269 kilograms equals 594 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 Stephenville
See the map of the shortest flight path between Helena Regional Airport (HLN) and Stephenville International Airport (YJT).
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 | Stephenville International Airport |
|---|---|
| City: | Stephenville |
| Country: | Canada  |
| IATA Code: | YJT |
| ICAO Code: | CYJT |
| Coordinates: | 48°32′39″N, 58°32′59″W |