Air Miles Calculator logo

How far is Decatur, IL, from Petersburg, AK?

The distance between Petersburg (Petersburg James A. Johnson Airport) and Decatur (Decatur Airport) is 2289 miles / 3685 kilometers / 1990 nautical miles.

The driving distance from Petersburg (PSG) to Decatur (DEC) is 2940 miles / 4731 kilometers, and travel time by car is about 67 hours 16 minutes.

Petersburg James A. Johnson Airport – Decatur Airport

Distance arrow
2289
Miles
Distance arrow
3685
Kilometers
Distance arrow
1990
Nautical miles

Search flights

Distance from Petersburg to Decatur

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

Vincenty's formula (applied above)
  • 2289.480 miles
  • 3684.560 kilometers
  • 1989.503 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
  • 2284.492 miles
  • 3676.533 kilometers
  • 1985.169 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 Petersburg to Decatur?

The estimated flight time from Petersburg James A. Johnson Airport to Decatur Airport is 4 hours and 50 minutes.

Flight carbon footprint between Petersburg James A. Johnson Airport (PSG) and Decatur Airport (DEC)

On average, flying from Petersburg to Decatur generates about 251 kg of CO2 per passenger, and 251 kilograms equals 553 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path and driving directions from Petersburg to Decatur

See the map of the shortest flight path between Petersburg James A. Johnson Airport (PSG) and Decatur Airport (DEC).

Airport information

Origin Petersburg James A. Johnson Airport
City: Petersburg, AK
Country: United States Flag of United States
IATA Code: PSG
ICAO Code: PAPG
Coordinates: 56°48′6″N, 132°56′42″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