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

The distance between Decatur (Decatur Airport) and Pierre (Pierre Regional Airport) is 665 miles / 1070 kilometers / 578 nautical miles.

The driving distance from Decatur (DEC) to Pierre (PIR) is 861 miles / 1385 kilometers, and travel time by car is about 15 hours 29 minutes.

Distance from Decatur to Pierre

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

Vincenty's formula (applied above)

• 664.743 miles
• 1069.800 kilometers
• 577.646 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

• 663.550 miles
• 1067.879 kilometers
• 576.609 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 Pierre?

The estimated flight time from Decatur Airport to Pierre Regional Airport is 1 hour and 45 minutes.

What is the time difference between Decatur and Pierre?

There is no time difference between Decatur and Pierre.

Flight carbon footprint between Decatur Airport (DEC) and Pierre Regional Airport (PIR)

On average, flying from Decatur to Pierre generates about 121 kg of CO2 per passenger, and 121 kilograms equals 266 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 Pierre

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

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	Pierre Regional Airport
City:	Pierre, SD
Country:	United States
IATA Code:	PIR
ICAO Code:	KPIR
Coordinates:	44°22′57″N, 100°17′9″W