How far is Decatur, IL, from Monroe, LA?

The distance between Monroe (Monroe Regional Airport) and Decatur (Decatur Airport) is 535 miles / 861 kilometers / 465 nautical miles.

The driving distance from Monroe (MLU) to Decatur (DEC) is 660 miles / 1062 kilometers, and travel time by car is about 12 hours 32 minutes.

Distance from Monroe to Decatur

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

Vincenty's formula (applied above)

• 535.085 miles
• 861.135 kilometers
• 464.976 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

• 535.950 miles
• 862.527 kilometers
• 465.727 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 Monroe to Decatur?

The estimated flight time from Monroe Regional Airport to Decatur Airport is 1 hour and 30 minutes.

What is the time difference between Monroe and Decatur?

There is no time difference between Monroe and Decatur.

Flight carbon footprint between Monroe Regional Airport (MLU) and Decatur Airport (DEC)

On average, flying from Monroe to Decatur generates about 104 kg of CO2 per passenger, and 104 kilograms equals 229 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path and driving directions from Monroe to Decatur

See the map of the shortest flight path between Monroe Regional Airport (MLU) and Decatur Airport (DEC).

Airport information

Origin	Monroe Regional Airport
City:	Monroe, LA
Country:	United States
IATA Code:	MLU
ICAO Code:	KMLU
Coordinates:	32°30′39″N, 92°2′15″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