How far is Rock Springs, WY, from Helena, MT?
The distance between Helena (Helena Regional Airport) and Rock Springs (Southwest Wyoming Regional Airport) is 375 miles / 604 kilometers / 326 nautical miles.
The driving distance from Helena (HLN) to Rock Springs (RKS) is 467 miles / 752 kilometers, and travel time by car is about 9 hours 46 minutes.
Helena Regional Airport – Southwest Wyoming Regional Airport
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Distance from Helena to Rock Springs
There are several ways to calculate the distance from Helena to Rock Springs. Here are two standard methods:
Vincenty's formula (applied above)- 375.232 miles
- 603.878 kilometers
- 326.068 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- 375.312 miles
- 604.005 kilometers
- 326.137 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 Rock Springs?
The estimated flight time from Helena Regional Airport to Southwest Wyoming Regional Airport is 1 hour and 12 minutes.
What is the time difference between Helena and Rock Springs?
There is no time difference between Helena and Rock Springs.
Flight carbon footprint between Helena Regional Airport (HLN) and Southwest Wyoming Regional Airport (RKS)
On average, flying from Helena to Rock Springs generates about 80 kg of CO2 per passenger, and 80 kilograms equals 177 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 Rock Springs
See the map of the shortest flight path between Helena Regional Airport (HLN) and Southwest Wyoming Regional Airport (RKS).
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 | Southwest Wyoming Regional Airport |
|---|---|
| City: | Rock Springs, WY |
| Country: | United States |
| IATA Code: | RKS |
| ICAO Code: | KRKS |
| Coordinates: | 41°35′39″N, 109°3′54″W |