Air Miles Calculator

Distance between Cedar Rapids, IA (CID) and Decatur, IL (DEC)

Flight distance from Cedar Rapids to Decatur (The Eastern Iowa Airport – Decatur Airport) is 205 miles / 331 kilometers / 179 nautical miles. Estimated flight time is 53 minutes.

Driving distance from Cedar Rapids (CID) to Decatur (DEC) is 262 miles / 422 kilometers and travel time by car is about 4 hours 42 minutes.

Map of flight path and driving directions from Cedar Rapids to Decatur.

Shortest flight path between The Eastern Iowa Airport (CID) and Decatur Airport (DEC).

How far is Decatur from Cedar Rapids?

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

Vincenty's formula (applied above)
  • 205.475 miles
  • 330.680 kilometers
  • 178.553 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
  • 205.326 miles
  • 330.440 kilometers
  • 178.424 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 The Eastern Iowa Airport
City: Cedar Rapids, IA
Country: United States Flag of United States
IATA Code: CID
ICAO Code: KCID
Coordinates: 41°53′4″N, 91°42′38″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

There is no time difference between Cedar Rapids and Decatur.

Time Difference

Cedar Rapids, IA

 CST

Decatur, IL

 CST

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 55 kg (122 pounds).

Frequent Flyer Miles Calculator

Cedar Rapids (CID) → Decatur (DEC).

Distance:
205
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
205

Round trip?