How far is Chicago, IL, from Decatur, IL?
The distance between Decatur (Decatur Airport) and Chicago (Chicago Midway International Airport) is 147 miles / 236 kilometers / 128 nautical miles.
The driving distance from Decatur (DEC) to Chicago (MDW) is 173 miles / 278 kilometers, and travel time by car is about 3 hours 23 minutes.
Decatur Airport – Chicago Midway International Airport
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Distance from Decatur to Chicago
There are several ways to calculate the distance from Decatur to Chicago. 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 Decatur to Chicago?
The estimated flight time from Decatur Airport to Chicago Midway International Airport is 46 minutes.
What is the time difference between Decatur and Chicago?
Flight carbon footprint between Decatur Airport (DEC) and Chicago Midway International Airport (MDW)
On average, flying from Decatur to Chicago 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 Decatur to Chicago
See the map of the shortest flight path between Decatur Airport (DEC) and Chicago Midway International Airport (MDW).
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 | 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 |