How far is Decatur, IL, from Boise, ID?

The distance between Boise (Boise Airport) and Decatur (Decatur Airport) is 1431 miles / 2304 kilometers / 1244 nautical miles.

The driving distance from Boise (BOI) to Decatur (DEC) is 1647 miles / 2651 kilometers, and travel time by car is about 28 hours 20 minutes.

Distance from Boise to Decatur

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

Vincenty's formula (applied above)

• 1431.457 miles
• 2303.707 kilometers
• 1243.902 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

• 1427.913 miles
• 2298.004 kilometers
• 1240.823 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 Boise to Decatur?

The estimated flight time from Boise Airport to Decatur Airport is 3 hours and 12 minutes.

What is the time difference between Boise and Decatur?

The time difference between Boise and Decatur is 1 hour. Decatur is 1 hour ahead of Boise.

Flight carbon footprint between Boise Airport (BOI) and Decatur Airport (DEC)

On average, flying from Boise to Decatur generates about 175 kg of CO2 per passenger, and 175 kilograms equals 386 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path and driving directions from Boise to Decatur

See the map of the shortest flight path between Boise Airport (BOI) and Decatur Airport (DEC).

Airport information

Origin	Boise Airport
City:	Boise, ID
Country:	United States
IATA Code:	BOI
ICAO Code:	KBOI
Coordinates:	43°33′51″N, 116°13′22″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