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Distance between Chicago, IL (MDW) and St Louis, MO (STL)

Flight distance from Chicago to St Louis (Chicago Midway International Airport – St. Louis Lambert International Airport) is 251 miles / 404 kilometers / 218 nautical miles. Estimated flight time is 58 minutes.

Driving distance from Chicago (MDW) to St Louis (STL) is 297 miles / 478 kilometers and travel time by car is about 5 hours 36 minutes.

Chicago – St Louis

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251
Miles
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404
Kilometers
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218
Nautical miles

How far is St Louis from Chicago?

There are several ways to calculate distances between Los Angeles and Chicago. Here are two common methods:

Vincenty's formula (applied above)
  • 251.083 miles
  • 404.078 kilometers
  • 218.185 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
  • 251.136 miles
  • 404.164 kilometers
  • 218.231 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).

Flight Duration

Estimated flight time from Chicago Midway International Airport to St. Louis Lambert International Airport is 58 minutes.

Time difference

There is no time difference between Chicago and St Louis.

Carbon dioxide emissions

On average flying from Chicago to St Louis generates about 62 kg of CO2 per passenger, 62 kilograms is equal to 137 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path and driving directions from Chicago to St Louis

Shortest flight path between Chicago Midway International Airport (MDW) and St. Louis Lambert International Airport (STL).

Airport information

Origin Chicago Midway International Airport
City: Chicago, IL
Country: United States Flag of United States
IATA Code: MDW
ICAO Code: KMDW
Coordinates: 41°47′9″N, 87°45′8″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

Airlines flying from Chicago (MDW) to St Louis (STL)

AirTran Airways
Southwest Airlines