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How far is Decatur, IL, from Buffalo, NY?

The distance between Buffalo (Buffalo Niagara International Airport) and Decatur (Decatur Airport) is 568 miles / 914 kilometers / 494 nautical miles.

The driving distance from Buffalo (BUF) to Decatur (DEC) is 674 miles / 1084 kilometers, and travel time by car is about 12 hours 47 minutes.

Buffalo Niagara International Airport – Decatur Airport

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568
Miles
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914
Kilometers
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494
Nautical miles

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Distance from Buffalo to Decatur

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

Vincenty's formula (applied above)
  • 568.124 miles
  • 914.307 kilometers
  • 493.686 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
  • 566.965 miles
  • 912.441 kilometers
  • 492.679 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 Buffalo to Decatur?

The estimated flight time from Buffalo Niagara International Airport to Decatur Airport is 1 hour and 34 minutes.

Flight carbon footprint between Buffalo Niagara International Airport (BUF) and Decatur Airport (DEC)

On average, flying from Buffalo to Decatur generates about 109 kg of CO2 per passenger, and 109 kilograms equals 239 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path and driving directions from Buffalo to Decatur

See the map of the shortest flight path between Buffalo Niagara International Airport (BUF) and Decatur Airport (DEC).

Airport information

Origin Buffalo Niagara International Airport
City: Buffalo, NY
Country: United States Flag of United States
IATA Code: BUF
ICAO Code: KBUF
Coordinates: 42°56′25″N, 78°43′55″W
Destination Decatur Airport
City: Decatur, IL
Country: United States Flag of United States
IATA Code: DEC
ICAO Code: KDEC
Coordinates: 39°50′4″N, 88°51′56″W