How far is Roswell, NM, from Helena, MT?
The distance between Helena (Helena Regional Airport) and Roswell (Roswell International Air Center) is 998 miles / 1607 kilometers / 868 nautical miles.
The driving distance from Helena (HLN) to Roswell (ROW) is 1306 miles / 2101 kilometers, and travel time by car is about 23 hours 23 minutes.
Helena Regional Airport – Roswell International Air Center
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Distance from Helena to Roswell
There are several ways to calculate the distance from Helena to Roswell. Here are two standard methods:
Vincenty's formula (applied above)- 998.475 miles
- 1606.890 kilometers
- 867.651 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- 999.311 miles
- 1608.235 kilometers
- 868.378 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 Roswell?
The estimated flight time from Helena Regional Airport to Roswell International Air Center is 2 hours and 23 minutes.
What is the time difference between Helena and Roswell?
Flight carbon footprint between Helena Regional Airport (HLN) and Roswell International Air Center (ROW)
On average, flying from Helena to Roswell generates about 151 kg of CO2 per passenger, and 151 kilograms equals 332 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 Roswell
See the map of the shortest flight path between Helena Regional Airport (HLN) and Roswell International Air Center (ROW).
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 | Roswell International Air Center |
|---|---|
| City: | Roswell, NM |
| Country: | United States |
| IATA Code: | ROW |
| ICAO Code: | KROW |
| Coordinates: | 33°18′5″N, 104°31′51″W |