How far is Carlsbad, NM, from Helena, MT?
The distance between Helena (Helena Regional Airport) and Carlsbad (Cavern City Air Terminal) is 1066 miles / 1716 kilometers / 926 nautical miles.
The driving distance from Helena (HLN) to Carlsbad (CNM) is 1378 miles / 2218 kilometers, and travel time by car is about 24 hours 56 minutes.
Helena Regional Airport – Cavern City Air Terminal
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Distance from Helena to Carlsbad
There are several ways to calculate the distance from Helena to Carlsbad. Here are two standard methods:
Vincenty's formula (applied above)- 1066.141 miles
- 1715.787 kilometers
- 926.451 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- 1067.142 miles
- 1717.399 kilometers
- 927.321 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 Carlsbad?
The estimated flight time from Helena Regional Airport to Cavern City Air Terminal is 2 hours and 31 minutes.
What is the time difference between Helena and Carlsbad?
Flight carbon footprint between Helena Regional Airport (HLN) and Cavern City Air Terminal (CNM)
On average, flying from Helena to Carlsbad generates about 155 kg of CO2 per passenger, and 155 kilograms equals 341 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 Carlsbad
See the map of the shortest flight path between Helena Regional Airport (HLN) and Cavern City Air Terminal (CNM).
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 | Cavern City Air Terminal |
|---|---|
| City: | Carlsbad, NM |
| Country: | United States |
| IATA Code: | CNM |
| ICAO Code: | KCNM |
| Coordinates: | 32°20′15″N, 104°15′46″W |