Air Miles Calculator

Distance between Lafayette, LA (LFT) and Decatur, IL (DEC)

Distance from Lafayette to Decatur (Lafayette Regional Airport – Decatur Airport) is 687 miles / 1105 kilometers / 597 nautical miles.

How far is Decatur from Lafayette?

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

Vincenty's formula (applied above)
  • 686.875 miles
  • 1105.418 kilometers
  • 596.878 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
  • 688.239 miles
  • 1107.614 kilometers
  • 598.064 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).

Flight duration

Estimated flight time from Lafayette Regional Airport (LFT) to Decatur Airport (DEC) is 1 hour 48 minutes.

Time difference and current local times

There is no time difference between Lafayette and Decatur.

Time Difference

Lafayette
Decatur

Lafayette, LA

 CDT

Decatur, IL

 CDT

Carbon dioxide emissions

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

Airport information


A Lafayette Regional Airport
City: Lafayette, LA
Country: United States Flag of United States
IATA Code: LFT
ICAO Code: KLFT
Coordinates: 30°12′19″N, 91°59′15″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

Lafayette to Decatur flight path

Shortest flight path between Lafayette Regional Airport (LFT) and Decatur Airport (DEC).

Frequent Flyer Miles Calculator

Lafayette (LFT) → Decatur (DEC).

Elite level bonus (%):
Booking class bonus (%):
Air miles:
687
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
687

Round trip?