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How far is Rock Springs, WY, from Lewistown, MT?

The distance between Lewistown (Lewistown Municipal Airport) and Rock Springs (Southwest Wyoming Regional Airport) is 377 miles / 607 kilometers / 328 nautical miles.

The driving distance from Lewistown (LWT) to Rock Springs (RKS) is 518 miles / 833 kilometers, and travel time by car is about 11 hours 59 minutes.

Lewistown Municipal Airport – Southwest Wyoming Regional Airport

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377
Miles
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607
Kilometers
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328
Nautical miles

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Distance from Lewistown to Rock Springs

There are several ways to calculate the distance from Lewistown to Rock Springs. Here are two standard methods:

Vincenty's formula (applied above)
  • 377.177 miles
  • 607.008 kilometers
  • 327.758 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
  • 377.434 miles
  • 607.420 kilometers
  • 327.981 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 Lewistown to Rock Springs?

The estimated flight time from Lewistown Municipal Airport to Southwest Wyoming Regional Airport is 1 hour and 12 minutes.

What is the time difference between Lewistown and Rock Springs?

There is no time difference between Lewistown and Rock Springs.

Flight carbon footprint between Lewistown Municipal Airport (LWT) and Southwest Wyoming Regional Airport (RKS)

On average, flying from Lewistown to Rock Springs generates about 81 kg of CO2 per passenger, and 81 kilograms equals 178 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

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

See the map of the shortest flight path between Lewistown Municipal Airport (LWT) and Southwest Wyoming Regional Airport (RKS).

Airport information

Origin Lewistown Municipal Airport
City: Lewistown, MT
Country: United States Flag of United States
IATA Code: LWT
ICAO Code: KLWT
Coordinates: 47°2′57″N, 109°28′1″W
Destination 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