Air Miles Calculator

Distance between Greenville, SC (GSP) and Decatur, IL (DEC)

Flight distance from Greenville to Decatur (Greenville–Spartanburg International Airport – Decatur Airport) is 500 miles / 804 kilometers / 434 nautical miles. Estimated flight time is 1 hour 26 minutes.

Driving distance from Greenville (GSP) to Decatur (DEC) is 679 miles / 1092 kilometers and travel time by car is about 12 hours 30 minutes.

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

Shortest flight path between Greenville–Spartanburg International Airport (GSP) and Decatur Airport (DEC).

How far is Decatur from Greenville?

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

Vincenty's formula (applied above)
  • 499.581 miles
  • 803.998 kilometers
  • 434.124 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
  • 499.394 miles
  • 803.697 kilometers
  • 433.962 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 Greenville–Spartanburg International Airport
City: Greenville, SC
Country: United States Flag of United States
IATA Code: GSP
ICAO Code: KGSP
Coordinates: 34°53′44″N, 82°13′8″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 Greenville and Decatur is 1 hour. Decatur is 1 hour behind Greenville.

Time Difference

Greenville, SC

 EST

Decatur, IL

 CST

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 99 kg (217 pounds).

Frequent Flyer Miles Calculator

Greenville (GSP) → Decatur (DEC).

Distance:
500
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
500

Round trip?