How far is Madison, WI, from Decatur, IL?

The distance between Decatur (Decatur Airport) and Madison (Dane County Regional Airport) is 229 miles / 369 kilometers / 199 nautical miles.

The driving distance from Decatur (DEC) to Madison (MSN) is 254 miles / 409 kilometers, and travel time by car is about 4 hours 59 minutes.

Distance from Decatur to Madison

There are several ways to calculate the distance from Decatur to Madison. Here are two standard methods:

Vincenty's formula (applied above)

• 229.413 miles
• 369.204 kilometers
• 199.354 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

• 229.675 miles
• 369.626 kilometers
• 199.582 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 Madison?

The estimated flight time from Decatur Airport to Dane County Regional Airport is 56 minutes.

What is the time difference between Decatur and Madison?

There is no time difference between Decatur and Madison.

Flight carbon footprint between Decatur Airport (DEC) and Dane County Regional Airport (MSN)

On average, flying from Decatur to Madison generates about 59 kg of CO2 per passenger, and 59 kilograms equals 130 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 Madison

See the map of the shortest flight path between Decatur Airport (DEC) and Dane County Regional Airport (MSN).

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	Dane County Regional Airport
City:	Madison, WI
Country:	United States
IATA Code:	MSN
ICAO Code:	KMSN
Coordinates:	43°8′23″N, 89°20′15″W