# Distance between Chicago, IL (MDW) and Eau Claire, WI (EAU)

Flight distance from Chicago to Eau Claire (Chicago Midway International Airport – Chippewa Valley Regional Airport) is 284 miles / 457 kilometers / 247 nautical miles. Estimated flight time is 1 hour 2 minutes.

Driving distance from Chicago (MDW) to Eau Claire (EAU) is 327 miles / 526 kilometers and travel time by car is about 5 hours 50 minutes.

## Map of flight path and driving directions from Chicago to Eau Claire.

Shortest flight path between Chicago Midway International Airport (MDW) and Chippewa Valley Regional Airport (EAU).

## How far is Eau Claire from Chicago?

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

Vincenty's formula (applied above)
• 283.797 miles
• 456.727 kilometers
• 246.613 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
• 283.600 miles
• 456.410 kilometers
• 246.442 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 Chicago Midway International Airport
City: Chicago, IL
Country: United States
IATA Code: MDW
ICAO Code: KMDW
Coordinates: 41°47′9″N, 87°45′8″W

B Chippewa Valley Regional Airport
City: Eau Claire, WI
Country: United States
IATA Code: EAU
ICAO Code: KEAU
Coordinates: 44°51′56″N, 91°29′3″W

## Time difference and current local times

There is no time difference between Chicago and Eau Claire.

CDT

CDT

## Carbon dioxide emissions

Estimated CO2 emissions per passenger is 67 kg (147 pounds).

## Frequent Flyer Miles Calculator

Chicago (MDW) → Eau Claire (EAU).

Distance:
284
Elite level bonus:
0
Booking class bonus:
0

### In total

Total frequent flyer miles:
284

Round trip?