Air Miles Calculator

Distance between New York, NY (LGA) and Decatur, IL (DEC)

Flight distance from New York to Decatur (New York LaGuardia Airport – Decatur Airport) is 794 miles / 1277 kilometers / 690 nautical miles. Estimated flight time is 2 hours 0 minutes.

Driving distance from New York (LGA) to Decatur (DEC) is 912 miles / 1468 kilometers and travel time by car is about 16 hours 3 minutes.

Map of flight path and driving directions from New York to Decatur.

Shortest flight path between New York LaGuardia Airport (LGA) and Decatur Airport (DEC).

How far is Decatur from New York?

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

Vincenty's formula (applied above)
  • 793.684 miles
  • 1277.310 kilometers
  • 689.692 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
  • 791.707 miles
  • 1274.128 kilometers
  • 687.974 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 New York LaGuardia Airport
City: New York, NY
Country: United States Flag of United States
IATA Code: LGA
ICAO Code: KLGA
Coordinates: 40°46′37″N, 73°52′21″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 New York and Decatur is 1 hour. Decatur is 1 hour behind New York.

Time Difference

New York, NY

 EDT

Decatur, IL

 CDT

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 134 kg (296 pounds).

Frequent Flyer Miles Calculator

New York (LGA) → Decatur (DEC).

Distance:
794
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
794

Round trip?