# Distance between Rock Springs, WY (RKS) and Helena, MT (HLN)

Flight distance from Rock Springs to Helena (Southwest Wyoming Regional Airport – Helena Regional Airport) is 375 miles / 604 kilometers / 326 nautical miles. Estimated flight time is 1 hour 12 minutes.

Driving distance from Rock Springs (RKS) to Helena (HLN) is 462 miles / 743 kilometers and travel time by car is about 9 hours 24 minutes.

## Map of flight path and driving directions from Rock Springs to Helena.

Shortest flight path between Southwest Wyoming Regional Airport (RKS) and Helena Regional Airport (HLN).

## How far is Helena from Rock Springs?

There are several ways to calculate distances between Rock Springs and Helena. Here are two common 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 earth.

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).

## Airport information

A 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

B Helena Regional Airport
City: Helena, MT
Country: United States
IATA Code: HLN
ICAO Code: KHLN
Coordinates: 46°36′24″N, 111°58′58″W

## Time difference and current local times

There is no time difference between Rock Springs and Helena.

MDT

MDT

## Carbon dioxide emissions

Estimated CO2 emissions per passenger is 80 kg (177 pounds).

## Frequent Flyer Miles Calculator

Rock Springs (RKS) → Helena (HLN).

Distance:
375
Elite level bonus:
0
Booking class bonus:
0

### In total

Total frequent flyer miles:
375

Round trip?