How far is Decatur, IL, from Butte, MT?

The distance between Butte (Bert Mooney Airport) and Decatur (Decatur Airport) is 1266 miles / 2037 kilometers / 1100 nautical miles.

The driving distance from Butte (BTM) to Decatur (DEC) is 1497 miles / 2409 kilometers, and travel time by car is about 27 hours 3 minutes.

Distance from Butte to Decatur

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

Vincenty's formula (applied above)

• 1265.920 miles
• 2037.300 kilometers
• 1100.054 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

• 1263.055 miles
• 2032.690 kilometers
• 1097.565 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 Butte to Decatur?

The estimated flight time from Bert Mooney Airport to Decatur Airport is 2 hours and 53 minutes.

What is the time difference between Butte and Decatur?

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

Flight carbon footprint between Bert Mooney Airport (BTM) and Decatur Airport (DEC)

On average, flying from Butte to Decatur generates about 165 kg of CO2 per passenger, and 165 kilograms equals 363 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path and driving directions from Butte to Decatur

See the map of the shortest flight path between Bert Mooney Airport (BTM) and Decatur Airport (DEC).

Airport information

Origin	Bert Mooney Airport
City:	Butte, MT
Country:	United States
IATA Code:	BTM
ICAO Code:	KBTM
Coordinates:	45°57′17″N, 112°29′49″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