How far is Helena, MT, from Roswell, NM?
The distance between Roswell (Roswell International Air Center) and Helena (Helena Regional Airport) is 998 miles / 1607 kilometers / 868 nautical miles.
The driving distance from Roswell (ROW) to Helena (HLN) is 1305 miles / 2100 kilometers, and travel time by car is about 23 hours 17 minutes.
Roswell International Air Center – Helena Regional Airport
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Distance from Roswell to Helena
There are several ways to calculate the distance from Roswell to Helena. 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 Roswell to Helena?
The estimated flight time from Roswell International Air Center to Helena Regional Airport is 2 hours and 23 minutes.
What is the time difference between Roswell and Helena?
Flight carbon footprint between Roswell International Air Center (ROW) and Helena Regional Airport (HLN)
On average, flying from Roswell to Helena 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 Roswell to Helena
See the map of the shortest flight path between Roswell International Air Center (ROW) and Helena Regional Airport (HLN).
Airport information
| Origin | 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 |
| 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 |