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How far is Decatur, IL, from Philadelphia, PA?

The distance between Philadelphia (Philadelphia International Airport) and Decatur (Decatur Airport) is 724 miles / 1165 kilometers / 629 nautical miles.

The driving distance from Philadelphia (PHL) to Decatur (DEC) is 816 miles / 1313 kilometers, and travel time by car is about 15 hours 42 minutes.

Philadelphia International Airport – Decatur Airport

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724
Miles
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1165
Kilometers
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629
Nautical miles

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Distance from Philadelphia to Decatur

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

Vincenty's formula (applied above)
  • 723.786 miles
  • 1164.820 kilometers
  • 628.952 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
  • 721.982 miles
  • 1161.918 kilometers
  • 627.385 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 Philadelphia to Decatur?

The estimated flight time from Philadelphia International Airport to Decatur Airport is 1 hour and 52 minutes.

Flight carbon footprint between Philadelphia International Airport (PHL) and Decatur Airport (DEC)

On average, flying from Philadelphia 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 Philadelphia to Decatur

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

Airport information

Origin Philadelphia International Airport
City: Philadelphia, PA
Country: United States Flag of United States
IATA Code: PHL
ICAO Code: KPHL
Coordinates: 39°52′18″N, 75°14′27″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