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

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

The driving distance from Decatur (DEC) to Monroe (MLU) is 659 miles / 1060 kilometers, and travel time by car is about 12 hours 31 minutes.

Distance from Decatur to Monroe

There are several ways to calculate the distance from Decatur to Monroe. 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 Decatur to Monroe?

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

What is the time difference between Decatur and Monroe?

There is no time difference between Decatur and Monroe.

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

On average, flying from Decatur to Monroe 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 Decatur to Monroe

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

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