Air Miles Calculator

Distance between Kalamazoo, MI (AZO) and Decatur, IL (DEC)

Flight distance from Kalamazoo to Decatur (Kalamazoo/Battle Creek International Airport – Decatur Airport) is 240 miles / 386 kilometers / 208 nautical miles. Estimated flight time is 57 minutes.

Driving distance from Kalamazoo (AZO) to Decatur (DEC) is 291 miles / 469 kilometers and travel time by car is about 5 hours 18 minutes.

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

Shortest flight path between Kalamazoo/Battle Creek International Airport (AZO) and Decatur Airport (DEC).

How far is Decatur from Kalamazoo?

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

Vincenty's formula (applied above)
  • 239.573 miles
  • 385.555 kilometers
  • 208.183 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
  • 239.398 miles
  • 385.274 kilometers
  • 208.031 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 Kalamazoo/Battle Creek International Airport
City: Kalamazoo, MI
Country: United States Flag of United States
IATA Code: AZO
ICAO Code: KAZO
Coordinates: 42°14′5″N, 85°33′7″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 Kalamazoo and Decatur is 1 hour. Decatur is 1 hour behind Kalamazoo.

Time Difference

Kalamazoo, MI

 EST

Decatur, IL

 CST

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 60 kg (133 pounds).

Frequent Flyer Miles Calculator

Kalamazoo (AZO) → Decatur (DEC).

Distance:
240
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
240

Round trip?