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How far is St Louis, MO, from Lewistown, MT?

The distance between Lewistown (Lewistown Municipal Airport) and St Louis (St. Louis Lambert International Airport) is 1121 miles / 1805 kilometers / 975 nautical miles.

The driving distance from Lewistown (LWT) to St Louis (STL) is 1381 miles / 2222 kilometers, and travel time by car is about 25 hours 34 minutes.

Lewistown Municipal Airport – St. Louis Lambert International Airport

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1121
Miles
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1805
Kilometers
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975
Nautical miles

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Distance from Lewistown to St Louis

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

Vincenty's formula (applied above)
  • 1121.448 miles
  • 1804.796 kilometers
  • 974.512 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
  • 1119.517 miles
  • 1801.689 kilometers
  • 972.834 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 St Louis?

The estimated flight time from Lewistown Municipal Airport to St. Louis Lambert International Airport is 2 hours and 37 minutes.

Flight carbon footprint between Lewistown Municipal Airport (LWT) and St. Louis Lambert International Airport (STL)

On average, flying from Lewistown to St Louis generates about 158 kg of CO2 per passenger, and 158 kilograms equals 348 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 St Louis

See the map of the shortest flight path between Lewistown Municipal Airport (LWT) and St. Louis Lambert International Airport (STL).

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 St. Louis Lambert International Airport
City: St Louis, MO
Country: United States Flag of United States
IATA Code: STL
ICAO Code: KSTL
Coordinates: 38°44′55″N, 90°22′12″W