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How far is Decatur, IL, from Cardiff?

The distance between Cardiff (Cardiff Airport) and Decatur (Decatur Airport) is 3980 miles / 6405 kilometers / 3459 nautical miles.

Cardiff Airport – Decatur Airport

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3980
Miles
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6405
Kilometers
Distance arrow
3459
Nautical miles

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Distance from Cardiff to Decatur

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

Vincenty's formula (applied above)
  • 3980.180 miles
  • 6405.479 kilometers
  • 3458.682 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
  • 3969.572 miles
  • 6388.407 kilometers
  • 3449.464 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 Cardiff to Decatur?

The estimated flight time from Cardiff Airport to Decatur Airport is 8 hours and 2 minutes.

Flight carbon footprint between Cardiff Airport (CWL) and Decatur Airport (DEC)

On average, flying from Cardiff to Decatur generates about 454 kg of CO2 per passenger, and 454 kilograms equals 1 001 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path from Cardiff to Decatur

See the map of the shortest flight path between Cardiff Airport (CWL) and Decatur Airport (DEC).

Airport information

Origin Cardiff Airport
City: Cardiff
Country: United Kingdom Flag of United Kingdom
IATA Code: CWL
ICAO Code: EGFF
Coordinates: 51°23′48″N, 3°20′35″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