Distance between cities › USA › Illinois › Hillside, IL › Distance from Hillside to Onalaska Book Hotels

Distance from Hillside, IL to Onalaska, WI

Distance

271 mi

Time

5 hours 6 mins

Gas Cost

$25 - $50

There are 218.34 miles from Hillside to Onalaska in northwest direction and 271 miles (436.13 kilometers) by car, following the I-90 route.

Hillside and Onalaska are 5 hours 6 mins far apart, if you drive non-stop .

This is the fastest route from Hillside, IL to Onalaska, WI.

Hillside, IL and Onalaska, WI are in the same time zone (CDT). Current time in both locations is 2:38 am.

Any questions or tips to share?

Share with fellow travellers any question or tips about the route from Hillside, IL to Onalaska, WI:

Lowest Price Rental Cars in Hillside, IL

Planning on renting a car to go from Hillside, IL to Onalaska, WI? Here there are some offers to rent a car in Hillside, IL

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Hillside »

Gas Consumption and Emissions

A car with a fuel efficiency of MPG will need 10.89 gallons of gas to cover the route between Hillside, IL and Onalaska, WI.

The estimated cost of gas to go from Hillside to Onalaska is $35.83.

During the route, an average car will release 213.27 pounds of CO₂ to the atmosphere. The carbon footprint would be 0.79 pounds of CO₂ per mile.

Average USA gas price used for calculation is $3.29 per gallon of regular gas. Price last updated on March 13, 2026.
Read more about our CO₂ calculation.

Halfway Point Between Hillside, IL and Onalaska, WI

If you want to meet halfway between Hillside, IL and Onalaska, WI or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 43.174194 and -89.318533, or 43º 10' 27.0984" N, 89º 19' 6.7188" W. This location is 135.53 miles away from Hillside, IL and Onalaska, WI and it would take approximately 2 hours 33 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Windsor, WI, situated 145 miles from Hillside, IL and 132 miles from Onalaska, WI. It would take 2 hours 56 mins to go from Hillside to Windsor and 2 hours 32 mins to go from Onalaska to Windsor.

Major City Closest to Halfway Point

The major city closest to the halfway point between Hillside, IL and Onalaska, WI is Madison, WI, situated 139 miles from Hillside, IL and 140 miles from Onalaska, WI. It would take 2 hours 49 mins to go from Hillside to Madison and 2 hours 44 mins to go from Onalaska to Madison.