Air Miles Calculator

Distance between St Louis, MO (STL) and Lewistown, MT (LWT)

Flight distance from St Louis to Lewistown (St. Louis Lambert International Airport – Lewistown Municipal Airport) is 1121 miles / 1805 kilometers / 975 nautical miles. Estimated flight time is 2 hours 37 minutes.

Driving distance from St Louis (STL) to Lewistown (LWT) is 1433 miles / 2306 kilometers and travel time by car is about 24 hours 1 minutes.

Map of flight path and driving directions from St Louis to Lewistown.

Shortest flight path between St. Louis Lambert International Airport (STL) and Lewistown Municipal Airport (LWT).

How far is Lewistown from St Louis?

There are several ways to calculate distances between St Louis and Lewistown. Here are two common 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 earth.

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).

Airport information


A 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

B 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

Time difference and current local times

The time difference between St Louis and Lewistown is 1 hour. Lewistown is 1 hour behind St Louis.

Time Difference

St Louis, MO

 CST

Lewistown, MT

 MST

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 158 kg (348 pounds).

Frequent Flyer Miles Calculator

St Louis (STL) → Lewistown (LWT).

Distance:
1121
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
1121

Round trip?