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

The distance between Watertown (Watertown International Airport) and Decatur (Decatur Airport) is 721 miles / 1160 kilometers / 626 nautical miles.

The driving distance from Watertown (ART) to Decatur (DEC) is 879 miles / 1415 kilometers, and travel time by car is about 16 hours 44 minutes.

Watertown International Airport – Decatur Airport

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721
Miles
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1160
Kilometers
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626
Nautical miles

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Distance from Watertown to Decatur

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

Vincenty's formula (applied above)
  • 720.589 miles
  • 1159.676 kilometers
  • 626.175 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
  • 719.135 miles
  • 1157.335 kilometers
  • 624.911 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 Watertown to Decatur?

The estimated flight time from Watertown International Airport to Decatur Airport is 1 hour and 51 minutes.

Flight carbon footprint between Watertown International Airport (ART) and Decatur Airport (DEC)

On average, flying from Watertown to Decatur generates about 127 kg of CO2 per passenger, and 127 kilograms equals 280 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path and driving directions from Watertown to Decatur

See the map of the shortest flight path between Watertown International Airport (ART) and Decatur Airport (DEC).

Airport information

Origin Watertown International Airport
City: Watertown, NY
Country: United States Flag of United States
IATA Code: ART
ICAO Code: KART
Coordinates: 43°59′30″N, 76°1′18″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