Air Miles Calculator

Distance between Green Bay, WI (GRB) and Chicago, IL (MDW)

Flight distance from Green Bay to Chicago (Green Bay–Austin Straubel International Airport – Chicago Midway International Airport) is 187 miles / 301 kilometers / 163 nautical miles. Estimated flight time is 51 minutes.

Driving distance from Green Bay (GRB) to Chicago (MDW) is 209 miles / 337 kilometers and travel time by car is about 3 hours 56 minutes.

Map of flight path and driving directions from Green Bay to Chicago.

Shortest flight path between Green Bay–Austin Straubel International Airport (GRB) and Chicago Midway International Airport (MDW).

How far is Chicago from Green Bay?

There are several ways to calculate distances between Green Bay and Chicago. Here are two common methods:

Vincenty's formula (applied above)
  • 187.296 miles
  • 301.423 kilometers
  • 162.755 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
  • 187.457 miles
  • 301.682 kilometers
  • 162.895 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 Green Bay–Austin Straubel International Airport
City: Green Bay, WI
Country: United States Flag of United States
IATA Code: GRB
ICAO Code: KGRB
Coordinates: 44°29′6″N, 88°7′46″W

B Chicago Midway International Airport
City: Chicago, IL
Country: United States Flag of United States
IATA Code: MDW
ICAO Code: KMDW
Coordinates: 41°47′9″N, 87°45′8″W

Time difference and current local times

There is no time difference between Green Bay and Chicago.

Time Difference

Green Bay, WI

 CST

Chicago, IL

 CST

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 53 kg (116 pounds).

Frequent Flyer Miles Calculator

Green Bay (GRB) → Chicago (MDW).

Distance:
187
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
187

Round trip?