How far is Helena, MT, from Porto Alegre?
The distance between Porto Alegre (Salgado Filho Porto Alegre International Airport) and Helena (Helena Regional Airport) is 6494 miles / 10451 kilometers / 5643 nautical miles.
Salgado Filho Porto Alegre International Airport – Helena Regional Airport
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Distance from Porto Alegre to Helena
There are several ways to calculate the distance from Porto Alegre to Helena. Here are two standard methods:
Vincenty's formula (applied above)- 6494.016 miles
- 10451.106 kilometers
- 5643.146 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- 6508.044 miles
- 10473.682 kilometers
- 5655.336 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 Porto Alegre to Helena?
The estimated flight time from Salgado Filho Porto Alegre International Airport to Helena Regional Airport is 12 hours and 47 minutes.
What is the time difference between Porto Alegre and Helena?
Flight carbon footprint between Salgado Filho Porto Alegre International Airport (POA) and Helena Regional Airport (HLN)
On average, flying from Porto Alegre to Helena generates about 784 kg of CO2 per passenger, and 784 kilograms equals 1 729 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.
Map of flight path from Porto Alegre to Helena
See the map of the shortest flight path between Salgado Filho Porto Alegre International Airport (POA) and Helena Regional Airport (HLN).
Airport information
| Origin | Salgado Filho Porto Alegre International Airport |
|---|---|
| City: | Porto Alegre |
| Country: | Brazil  |
| IATA Code: | POA |
| ICAO Code: | SBPA |
| Coordinates: | 29°59′39″S, 51°10′17″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 |