Calculations with different methods
- 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).
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.
St Louis, MO
Carbon dioxide emissions
Estimated CO2 emissions per passenger is 60 kg (133 pounds).
St Louis to Chicago flight map.
Frequent Flyer Miles Calculator
St Louis (STL) → Chicago (MDW).