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How far is Decatur, IL, from St Augustine, FL?

The distance between St Augustine (Northeast Florida Regional Airport) and Decatur (Decatur Airport) is 803 miles / 1292 kilometers / 698 nautical miles.

The driving distance from St Augustine (UST) to Decatur (DEC) is 994 miles / 1599 kilometers, and travel time by car is about 18 hours 39 minutes.

Northeast Florida Regional Airport – Decatur Airport

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803
Miles
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1292
Kilometers
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698
Nautical miles

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Distance from St Augustine to Decatur

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

Vincenty's formula (applied above)
  • 803.074 miles
  • 1292.423 kilometers
  • 697.853 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
  • 803.905 miles
  • 1293.760 kilometers
  • 698.574 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 St Augustine to Decatur?

The estimated flight time from Northeast Florida Regional Airport to Decatur Airport is 2 hours and 1 minutes.

Flight carbon footprint between Northeast Florida Regional Airport (UST) and Decatur Airport (DEC)

On average, flying from St Augustine to Decatur generates about 135 kg of CO2 per passenger, and 135 kilograms equals 298 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path and driving directions from St Augustine to Decatur

See the map of the shortest flight path between Northeast Florida Regional Airport (UST) and Decatur Airport (DEC).

Airport information

Origin Northeast Florida Regional Airport
City: St Augustine, FL
Country: United States Flag of United States
IATA Code: UST
ICAO Code: KSGJ
Coordinates: 29°57′33″N, 81°20′23″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