How far is Brownsville, TX, from Helena, MT?
The distance between Helena (Helena Regional Airport) and Brownsville (Brownsville/South Padre Island International Airport) is 1636 miles / 2634 kilometers / 1422 nautical miles.
The driving distance from Helena (HLN) to Brownsville (BRO) is 2001 miles / 3221 kilometers, and travel time by car is about 35 hours 33 minutes.
Helena Regional Airport – Brownsville/South Padre Island International Airport
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Distance from Helena to Brownsville
There are several ways to calculate the distance from Helena to Brownsville. 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 Helena to Brownsville?
The estimated flight time from Helena Regional Airport to Brownsville/South Padre Island International Airport is 3 hours and 35 minutes.
What is the time difference between Helena and Brownsville?
The time difference between Helena and Brownsville is 1 hour. Brownsville is 1 hour ahead of Helena.
Flight carbon footprint between Helena Regional Airport (HLN) and Brownsville/South Padre Island International Airport (BRO)
On average, flying from Helena to Brownsville 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 Helena to Brownsville
See the map of the shortest flight path between Helena Regional Airport (HLN) and Brownsville/South Padre Island International Airport (BRO).
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 | 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 |