Air Miles Calculator

Distance between Cedar Rapids, IA (CID) and Rockford, IL (RFD)

Flight distance from Cedar Rapids to Rockford (The Eastern Iowa Airport – Chicago Rockford International Airport) is 136 miles / 219 kilometers / 118 nautical miles. Estimated flight time is 45 minutes.

Driving distance from Cedar Rapids (CID) to Rockford (RFD) is 187 miles / 301 kilometers and travel time by car is about 3 hours 24 minutes.

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

Shortest flight path between The Eastern Iowa Airport (CID) and Chicago Rockford International Airport (RFD).

How far is Rockford from Cedar Rapids?

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

Vincenty's formula (applied above)
  • 136.160 miles
  • 219.128 kilometers
  • 118.320 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
  • 135.816 miles
  • 218.575 kilometers
  • 118.021 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 Chicago Rockford International Airport
City: Rockford, IL
Country: United States Flag of United States
IATA Code: RFD
ICAO Code: KRFD
Coordinates: 42°11′43″N, 89°5′49″W

Time difference and current local times

There is no time difference between Cedar Rapids and Rockford.

Time Difference

Cedar Rapids, IA

 CST

Rockford, IL

 CST

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 45 kg (99 pounds).

Frequent Flyer Miles Calculator

Cedar Rapids (CID) → Rockford (RFD).

Distance:
136
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
136

Round trip?