How far is St Louis, MO, from Chicago, IL?
The distance between Chicago (Chicago Midway International Airport) and St Louis (St. Louis Lambert International Airport) is 251 miles / 404 kilometers / 218 nautical miles.
The driving distance from Chicago (MDW) to St Louis (STL) is 297 miles / 478 kilometers, and travel time by car is about 5 hours 33 minutes.
Chicago Midway International Airport – St. Louis Lambert International Airport
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Distance from Chicago to St Louis
There are several ways to calculate the distance from Chicago to St Louis. Here are two standard 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 planet.
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).
How long does it take to fly from Chicago to St Louis?
The estimated flight time from Chicago Midway International Airport to St. Louis Lambert International Airport is 58 minutes.
What is the time difference between Chicago and St Louis?
Flight carbon footprint between Chicago Midway International Airport (MDW) and St. Louis Lambert International Airport (STL)
On average, flying from Chicago to St Louis generates about 62 kg of CO2 per passenger, and 62 kilograms equals 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
See the map of the 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  |
| 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 |
| 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 |