Air Miles Calculator

Distance between Charleston, SC (CHS) and Decatur, IL (DEC)

Flight distance from Charleston to Decatur (Charleston International Airport – Decatur Airport) is 686 miles / 1103 kilometers / 596 nautical miles. Estimated flight time is 1 hour 47 minutes.

Driving distance from Charleston (CHS) to Decatur (DEC) is 872 miles / 1404 kilometers and travel time by car is about 15 hours 36 minutes.

Map of flight path and driving directions from Charleston to Decatur.

Shortest flight path between Charleston International Airport (CHS) and Decatur Airport (DEC).

How far is Decatur from Charleston?

There are several ways to calculate distances between Charleston and Decatur. Here are two common methods:

Vincenty's formula (applied above)
  • 685.542 miles
  • 1103.273 kilometers
  • 595.720 nautical miles

Vincenty's formula calculates the distance between latitude/longitude points on the earth’s surface, using an ellipsoidal model of the earth.

Haversine formula
  • 685.425 miles
  • 1103.085 kilometers
  • 595.618 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).

Airport information


A Charleston International Airport
City: Charleston, SC
Country: United States Flag of United States
IATA Code: CHS
ICAO Code: KCHS
Coordinates: 32°53′54″N, 80°2′25″W

B 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

Time difference and current local times

The time difference between Charleston and Decatur is 1 hour. Decatur is 1 hour behind Charleston.

Time Difference

Charleston, SC

 EST

Decatur, IL

 CST

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 123 kg (271 pounds).

Frequent Flyer Miles Calculator

Charleston (CHS) → Decatur (DEC).

Distance:
686
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
686

Round trip?