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How far is Decatur, IL, from Shannon?

The distance between Shannon (Shannon Airport) and Decatur (Decatur Airport) is 3726 miles / 5996 kilometers / 3238 nautical miles.

Shannon Airport – Decatur Airport

Distance arrow
3726
Miles
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5996
Kilometers
Distance arrow
3238
Nautical miles

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Distance from Shannon to Decatur

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

Vincenty's formula (applied above)
  • 3725.932 miles
  • 5996.306 kilometers
  • 3237.746 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
  • 3716.043 miles
  • 5980.392 kilometers
  • 3229.153 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 Shannon to Decatur?

The estimated flight time from Shannon Airport to Decatur Airport is 7 hours and 33 minutes.

Flight carbon footprint between Shannon Airport (SNN) and Decatur Airport (DEC)

On average, flying from Shannon to Decatur generates about 422 kg of CO2 per passenger, and 422 kilograms equals 931 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path from Shannon to Decatur

See the map of the shortest flight path between Shannon Airport (SNN) and Decatur Airport (DEC).

Airport information

Origin Shannon Airport
City: Shannon
Country: Ireland Flag of Ireland
IATA Code: SNN
ICAO Code: EINN
Coordinates: 52°42′7″N, 8°55′29″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