How far is Piedras Negras from Helena, MT?
The distance between Helena (Helena Regional Airport) and Piedras Negras (Piedras Negras International Airport) is 1387 miles / 2231 kilometers / 1205 nautical miles.
The driving distance from Helena (HLN) to Piedras Negras (PDS) is 1753 miles / 2821 kilometers, and travel time by car is about 31 hours 16 minutes.
Helena Regional Airport – Piedras Negras International Airport
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Distance from Helena to Piedras Negras
There are several ways to calculate the distance from Helena to Piedras Negras. Here are two standard methods:
Vincenty's formula (applied above)- 1386.515 miles
- 2231.380 kilometers
- 1204.849 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- 1387.897 miles
- 2233.604 kilometers
- 1206.050 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 Piedras Negras?
The estimated flight time from Helena Regional Airport to Piedras Negras International Airport is 3 hours and 7 minutes.
What is the time difference between Helena and Piedras Negras?
Flight carbon footprint between Helena Regional Airport (HLN) and Piedras Negras International Airport (PDS)
On average, flying from Helena to Piedras Negras generates about 172 kg of CO2 per passenger, and 172 kilograms equals 380 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 Piedras Negras
See the map of the shortest flight path between Helena Regional Airport (HLN) and Piedras Negras International Airport (PDS).
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 | Piedras Negras International Airport |
|---|---|
| City: | Piedras Negras |
| Country: | Mexico  |
| IATA Code: | PDS |
| ICAO Code: | MMPG |
| Coordinates: | 28°37′38″N, 100°32′6″W |