How far is Decatur, IL, from Brookings, SD?

The distance between Brookings (Brookings Regional Airport) and Decatur (Decatur Airport) is 512 miles / 824 kilometers / 445 nautical miles.

The driving distance from Brookings (BKX) to Decatur (DEC) is 670 miles / 1078 kilometers, and travel time by car is about 12 hours 32 minutes.

Distance from Brookings to Decatur

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

Vincenty's formula (applied above)

• 511.826 miles
• 823.705 kilometers
• 444.765 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

• 511.176 miles
• 822.657 kilometers
• 444.199 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 Brookings to Decatur?

The estimated flight time from Brookings Regional Airport to Decatur Airport is 1 hour and 28 minutes.

What is the time difference between Brookings and Decatur?

There is no time difference between Brookings and Decatur.

Flight carbon footprint between Brookings Regional Airport (BKX) and Decatur Airport (DEC)

On average, flying from Brookings to Decatur generates about 100 kg of CO2 per passenger, and 100 kilograms equals 221 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path and driving directions from Brookings to Decatur

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

Airport information

Origin	Brookings Regional Airport
City:	Brookings, SD
Country:	United States
IATA Code:	BKX
ICAO Code:	KBKX
Coordinates:	44°18′17″N, 96°49′0″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