Air Miles Calculator

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

Distance from St. Louis Lambert International Airport to Midway International Airport is 251 miles / 404 kilometers / 218 nautical miles.

Calculations with different 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).

Flight duration

Estimated flight time from St. Louis Lambert International Airport (STL) to Midway International Airport (MDW) is 58 minutes.

Time difference and current local times

There is no time difference between St Louis and Chicago.

Time Difference

St Louis
Chicago

St Louis, MO

 CST

Chicago, IL

 CST

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 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

Map

Flight map from St Louis to Chicago.

Frequent Flyer Miles Calculator

St Louis (STL) → Chicago (MDW).

Elite level bonus (%):
Booking class bonus (%):
Air miles:
251
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
251

Round trip?