Map of flight path and driving directions from St Louis to Decatur.
Shortest flight path between St. Louis Lambert International Airport (STL) and Decatur Airport (DEC).
How far is Decatur from St Louis?
There are several ways to calculate distances between St Louis and Decatur. Here are two common 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 earth.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).
Time difference and current local times
There is no time difference between St Louis and Decatur.
St Louis, MO
Carbon dioxide emissions
Estimated CO2 emissions per passenger is 41 kg (91 pounds).
Frequent Flyer Miles Calculator
St Louis (STL) → Decatur (DEC).