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Distance between Rock Springs, WY (RKS) and Kalispell, MT (FCA)

Flight distance from Rock Springs to Kalispell (Southwest Wyoming Regional Airport – Glacier Park International Airport) is 529 miles / 851 kilometers / 459 nautical miles. Estimated flight time is 1 hour 30 minutes.

Driving distance from Rock Springs (RKS) to Kalispell (FCA) is 685 miles / 1102 kilometers and travel time by car is about 13 hours 22 minutes.

Rock Springs – Kalispell

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529
Miles
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851
Kilometers
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459
Nautical miles

How far is Kalispell from Rock Springs?

There are several ways to calculate distances between Los Angeles and Chicago. Here are two common methods:

Vincenty's formula (applied above)
  • 528.738 miles
  • 850.922 kilometers
  • 459.461 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
  • 528.635 miles
  • 850.755 kilometers
  • 459.371 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).

Flight Duration

Estimated flight time from Southwest Wyoming Regional Airport to Glacier Park International Airport is 1 hour 30 minutes.

Time difference

There is no time difference between Rock Springs and Kalispell.

Carbon dioxide emissions

On average flying from Rock Springs to Kalispell generates about 103 kg of CO2 per passenger, 103 kilograms is equal to 227 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path and driving directions from Rock Springs to Kalispell

Shortest flight path between Southwest Wyoming Regional Airport (RKS) and Glacier Park International Airport (FCA).

Airport information

Origin Southwest Wyoming Regional Airport
City: Rock Springs, WY
Country: United States Flag of United States
IATA Code: RKS
ICAO Code: KRKS
Coordinates: 41°35′39″N, 109°3′54″W
Destination Glacier Park International Airport
City: Kalispell, MT
Country: United States Flag of United States
IATA Code: FCA
ICAO Code: KGPI
Coordinates: 48°18′37″N, 114°15′21″W