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

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

The driving distance from Decatur (DEC) to Niagara Falls (IAG) is 679 miles / 1093 kilometers, and travel time by car is about 12 hours 49 minutes.

Decatur Airport – Niagara Falls International 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 Decatur to Niagara Falls

There are several ways to calculate the distance from Decatur to Niagara Falls. 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 Decatur to Niagara Falls?

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

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

On average, flying from Decatur to Niagara Falls 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 Decatur to Niagara Falls

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

Airport information

Origin 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
Destination 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