How far is Helena, MT, from Brownsville, TX?
The distance between Brownsville (Brownsville/South Padre Island International Airport) and Helena (Helena Regional Airport) is 1636 miles / 2634 kilometers / 1422 nautical miles.
The driving distance from Brownsville (BRO) to Helena (HLN) is 2000 miles / 3219 kilometers, and travel time by car is about 35 hours 29 minutes.
Brownsville/South Padre Island International Airport – Helena Regional Airport
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Distance from Brownsville to Helena
There are several ways to calculate the distance from Brownsville to Helena. Here are two standard methods:
Vincenty's formula (applied above)- 1636.405 miles
- 2633.539 kilometers
- 1421.997 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- 1638.071 miles
- 2636.220 kilometers
- 1423.445 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 Brownsville to Helena?
The estimated flight time from Brownsville/South Padre Island International Airport to Helena Regional Airport is 3 hours and 35 minutes.
What is the time difference between Brownsville and Helena?
The time difference between Brownsville and Helena is 1 hour. Helena is 1 hour behind Brownsville.
Flight carbon footprint between Brownsville/South Padre Island International Airport (BRO) and Helena Regional Airport (HLN)
On average, flying from Brownsville to Helena generates about 188 kg of CO2 per passenger, and 188 kilograms equals 415 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.
Map of flight path and driving directions from Brownsville to Helena
See the map of the shortest flight path between Brownsville/South Padre Island International Airport (BRO) and Helena Regional Airport (HLN).
Airport information
| Origin | Brownsville/South Padre Island International Airport |
|---|---|
| City: | Brownsville, TX |
| Country: | United States  |
| IATA Code: | BRO |
| ICAO Code: | KBRO |
| Coordinates: | 25°54′24″N, 97°25′33″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 |