The flight distance from Williamson County Regional Airport to Lambert-St. Louis International Airport is:

100 miles / 162 km

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Flight path from MWA to STL

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Distance from MWA to STL

The total distance from MWA to STL is 100 miles.

This is equivalent to 162 kilometers or 87 nautical miles.

Your trip begins at Williamson County Regional Airport in Marion, Illinois.
It ends at Lambert-St. Louis International Airport in Saint Louis, Missouri.

Your flight direction from MWA to STL is Northwest (-47 degrees from North).

The distance calculator helps you figure out how far it is to fly from MWA to STL. It does this by computing the straight line flying distance ("as the crow flies"). It uses the great circle formula to compute the total travel mileage.

Williamson County Regional Airport

IATA: MWA
ICAO: KMWA
FAA: MWA
City: Marion
State: Illinois
Zip code: 62959
Country: United States
Category: airports

Lambert-St. Louis International Airport

IATA: STL
ICAO: KSTL
FAA: STL
City: Saint Louis
State: Missouri
Zip code: 63145
Country: United States
Category: airports

Flight distance calculator

Travelmath provides an online flight distance calculator to get the distance between cities. You can also compare all types of locations including airports, cities, states, countries, or zip codes to find the distance between any two points. The database uses the latitude and longitude of each location to calculate distance using the great circle distance formula. The calculation is done using the Vincenty algorithm and the WGS84 ellipsoid model of the Earth, which is the same one used by most GPS receivers. This gives you the flying distance "as the crow flies." Find your flight distances quickly to estimate the number of frequent flyer miles you'll accumulate. Or ask how far is it between cities to solve your homework problems. You can lookup U.S. cities, or expand your search to get the world distance for international trips.