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

The distance between Decatur (Decatur Airport) and Ithaca (Ithaca Tompkins Regional Airport) is 672 miles / 1081 kilometers / 584 nautical miles.

The driving distance from Decatur (DEC) to Ithaca (ITH) is 814 miles / 1310 kilometers, and travel time by car is about 15 hours 25 minutes.

Decatur Airport – Ithaca Tompkins Regional Airport

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672
Miles
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1081
Kilometers
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584
Nautical miles

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Distance from Decatur to Ithaca

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

Vincenty's formula (applied above)
  • 671.798 miles
  • 1081.155 kilometers
  • 583.777 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
  • 670.265 miles
  • 1078.687 kilometers
  • 582.444 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 Ithaca?

The estimated flight time from Decatur Airport to Ithaca Tompkins Regional Airport is 1 hour and 46 minutes.

Flight carbon footprint between Decatur Airport (DEC) and Ithaca Tompkins Regional Airport (ITH)

On average, flying from Decatur to Ithaca generates about 121 kg of CO2 per passenger, and 121 kilograms equals 268 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 Ithaca

See the map of the shortest flight path between Decatur Airport (DEC) and Ithaca Tompkins Regional Airport (ITH).

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 Ithaca Tompkins Regional Airport
City: Ithaca, NY
Country: United States Flag of United States
IATA Code: ITH
ICAO Code: KITH
Coordinates: 42°29′27″N, 76°27′30″W