How far is St Louis, MO, from Decatur, IL?
The distance between Decatur (Decatur Airport) and St Louis (St. Louis Lambert International Airport) is 110 miles / 177 kilometers / 96 nautical miles.
The driving distance from Decatur (DEC) to St Louis (STL) is 148 miles / 238 kilometers, and travel time by car is about 2 hours 51 minutes.
Decatur Airport – St. Louis Lambert International Airport
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Distance from Decatur to St Louis
There are several ways to calculate the distance from Decatur to St Louis. Here are two standard methods:
Vincenty's formula (applied above)- 110.062 miles
- 177.127 kilometers
- 95.641 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- 109.996 miles
- 177.022 kilometers
- 95.584 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 Decatur to St Louis?
The estimated flight time from Decatur Airport to St. Louis Lambert International Airport is 42 minutes.
What is the time difference between Decatur and St Louis?
Flight carbon footprint between Decatur Airport (DEC) and St. Louis Lambert International Airport (STL)
On average, flying from Decatur to St Louis generates about 41 kg of CO2 per passenger, and 41 kilograms equals 91 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.
Map of flight path and driving directions from Decatur to St Louis
See the map of the shortest flight path between Decatur Airport (DEC) and St. Louis Lambert International Airport (STL).
Airport information
| Origin | Decatur Airport |
|---|---|
| City: | Decatur, IL |
| Country: | United States  |
| IATA Code: | DEC |
| ICAO Code: | KDEC |
| Coordinates: | 39°50′4″N, 88°51′56″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 |