Air Miles Calculator logo

How far is Lewistown, MT, from Riverton, WY?

The distance between Riverton (Central Wyoming Regional Airport) and Lewistown (Lewistown Municipal Airport) is 280 miles / 450 kilometers / 243 nautical miles.

The driving distance from Riverton (RIW) to Lewistown (LWT) is 376 miles / 605 kilometers, and travel time by car is about 8 hours 24 minutes.

Central Wyoming Regional Airport – Lewistown Municipal Airport

Distance arrow
280
Miles
Distance arrow
450
Kilometers
Distance arrow
243
Nautical miles

Search flights

Distance from Riverton to Lewistown

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

Vincenty's formula (applied above)
  • 279.562 miles
  • 449.912 kilometers
  • 242.933 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
  • 279.689 miles
  • 450.117 kilometers
  • 243.043 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 Riverton to Lewistown?

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

What is the time difference between Riverton and Lewistown?

There is no time difference between Riverton and Lewistown.

Flight carbon footprint between Central Wyoming Regional Airport (RIW) and Lewistown Municipal Airport (LWT)

On average, flying from Riverton to Lewistown generates about 66 kg of CO2 per passenger, and 66 kilograms equals 146 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path and driving directions from Riverton to Lewistown

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

Airport information

Origin Central Wyoming Regional Airport
City: Riverton, WY
Country: United States Flag of United States
IATA Code: RIW
ICAO Code: KRIW
Coordinates: 43°3′51″N, 108°27′35″W
Destination 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