How far is Helena, MT, from St Augustine, FL?
The distance between St Augustine (Northeast Florida Regional Airport) and Helena (Helena Regional Airport) is 2003 miles / 3223 kilometers / 1740 nautical miles.
The driving distance from St Augustine (UST) to Helena (HLN) is 2438 miles / 3924 kilometers, and travel time by car is about 44 hours 6 minutes.
Northeast Florida Regional Airport – Helena Regional Airport
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Distance from St Augustine to Helena
There are several ways to calculate the distance from St Augustine to Helena. Here are two standard methods:
Vincenty's formula (applied above)- 2002.926 miles
- 3223.397 kilometers
- 1740.495 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- 2000.853 miles
- 3220.061 kilometers
- 1738.694 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 Augustine to Helena?
The estimated flight time from Northeast Florida Regional Airport to Helena Regional Airport is 4 hours and 17 minutes.
What is the time difference between St Augustine and Helena?
Flight carbon footprint between Northeast Florida Regional Airport (UST) and Helena Regional Airport (HLN)
On average, flying from St Augustine to Helena generates about 218 kg of CO2 per passenger, and 218 kilograms equals 481 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 Augustine to Helena
See the map of the shortest flight path between Northeast Florida Regional Airport (UST) and Helena Regional Airport (HLN).
Airport information
| Origin | Northeast Florida Regional Airport |
|---|---|
| City: | St Augustine, FL |
| Country: | United States  |
| IATA Code: | UST |
| ICAO Code: | KSGJ |
| Coordinates: | 29°57′33″N, 81°20′23″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 |