How far is St Michael, AK, from Helena, MT?
The distance between Helena (Helena Regional Airport) and St Michael (St. Michael Airport) is 2226 miles / 3582 kilometers / 1934 nautical miles.
The driving distance from Helena (HLN) to St Michael (SMK) is 3199 miles / 5149 kilometers, and travel time by car is about 138 hours 44 minutes.
Helena Regional Airport – St. Michael Airport
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Distance from Helena to St Michael
There are several ways to calculate the distance from Helena to St Michael. Here are two standard methods:
Vincenty's formula (applied above)- 2226.057 miles
- 3582.491 kilometers
- 1934.390 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- 2219.999 miles
- 3572.743 kilometers
- 1929.127 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 Michael?
The estimated flight time from Helena Regional Airport to St. Michael Airport is 4 hours and 42 minutes.
What is the time difference between Helena and St Michael?
The time difference between Helena and St Michael is 2 hours. St Michael is 2 hours behind Helena.
Flight carbon footprint between Helena Regional Airport (HLN) and St. Michael Airport (SMK)
On average, flying from Helena to St Michael generates about 243 kg of CO2 per passenger, and 243 kilograms equals 537 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 Michael
See the map of the shortest flight path between Helena Regional Airport (HLN) and St. Michael Airport (SMK).
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. Michael Airport |
|---|---|
| City: | St Michael, AK |
| Country: | United States |
| IATA Code: | SMK |
| ICAO Code: | PAMK |
| Coordinates: | 63°29′24″N, 162°6′36″W |