How far is St Louis, MO, from Chicago, IL?
The distance between Chicago (Chicago O'Hare International Airport) and St Louis (St. Louis Lambert International Airport) is 258 miles / 415 kilometers / 224 nautical miles.
The driving distance from Chicago (ORD) to St Louis (STL) is 306 miles / 492 kilometers, and travel time by car is about 5 hours 44 minutes.
Chicago O'Hare 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)- 258.028 miles
- 415.256 kilometers
- 224.220 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- 258.129 miles
- 415.419 kilometers
- 224.308 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 O'Hare International Airport to St. Louis Lambert International Airport is 59 minutes.
What is the time difference between Chicago and St Louis?
Flight carbon footprint between Chicago O'Hare International Airport (ORD) and St. Louis Lambert International Airport (STL)
On average, flying from Chicago to St Louis generates about 63 kg of CO2 per passenger, and 63 kilograms equals 139 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 O'Hare International Airport (ORD) and St. Louis Lambert International Airport (STL).
Airport information
| Origin | Chicago O'Hare International Airport |
|---|---|
| City: | Chicago, IL |
| Country: | United States  |
| IATA Code: | ORD |
| ICAO Code: | KORD |
| Coordinates: | 41°58′42″N, 87°54′17″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 (ORD) to St Louis (STL)
| American Airlines |
| United Airlines |