How far is Decatur, IL, from Chicago, IL?
The distance between Chicago (Chicago Midway International Airport) and Decatur (Decatur Airport) is 147 miles / 236 kilometers / 128 nautical miles.
The driving distance from Chicago (MDW) to Decatur (DEC) is 172 miles / 277 kilometers, and travel time by car is about 3 hours 22 minutes.
Chicago Midway International Airport – Decatur Airport
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Distance from Chicago to Decatur
There are several ways to calculate the distance from Chicago to Decatur. Here are two standard methods:
Vincenty's formula (applied above)- 146.756 miles
- 236.181 kilometers
- 127.527 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- 146.858 miles
- 236.345 kilometers
- 127.616 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 Decatur?
The estimated flight time from Chicago Midway International Airport to Decatur Airport is 46 minutes.
What is the time difference between Chicago and Decatur?
Flight carbon footprint between Chicago Midway International Airport (MDW) and Decatur Airport (DEC)
On average, flying from Chicago to Decatur generates about 47 kg of CO2 per passenger, and 47 kilograms equals 103 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 Decatur
See the map of the shortest flight path between Chicago Midway International Airport (MDW) and Decatur Airport (DEC).
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 | Decatur Airport |
|---|---|
| City: | Decatur, IL |
| Country: | United States |
| IATA Code: | DEC |
| ICAO Code: | KDEC |
| Coordinates: | 39°50′4″N, 88°51′56″W |