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How far is Decatur, IL, from Niagara Falls, NY?

The distance between Niagara Falls (Niagara Falls International Airport) and Decatur (Decatur Airport) is 562 miles / 904 kilometers / 488 nautical miles.

The driving distance from Niagara Falls (IAG) to Decatur (DEC) is 679 miles / 1092 kilometers, and travel time by car is about 12 hours 48 minutes.

Niagara Falls International Airport – Decatur Airport

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562
Miles
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904
Kilometers
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488
Nautical miles

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Distance from Niagara Falls to Decatur

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

Vincenty's formula (applied above)
  • 561.759 miles
  • 904.064 kilometers
  • 488.156 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
  • 560.651 miles
  • 902.280 kilometers
  • 487.192 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 Niagara Falls to Decatur?

The estimated flight time from Niagara Falls International Airport to Decatur Airport is 1 hour and 33 minutes.

Flight carbon footprint between Niagara Falls International Airport (IAG) and Decatur Airport (DEC)

On average, flying from Niagara Falls to Decatur generates about 108 kg of CO2 per passenger, and 108 kilograms equals 237 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path and driving directions from Niagara Falls to Decatur

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

Airport information

Origin Niagara Falls International Airport
City: Niagara Falls, NY
Country: United States Flag of United States
IATA Code: IAG
ICAO Code: KIAG
Coordinates: 43°6′26″N, 78°56′46″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