Wisconsin

$49+ Cheap flights from Illinois to Wisconsin

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/18. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — MKE
jul. 8 — jul. 151
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Illinois to Wisconsin with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Illinois to Wisconsin

Keep the following information in mind while searching for Illinois to Wisconsin flight deals. Data was last updated julio 3, 2025.

Round-trip from

$91
(American Airlines)

One-way from

$49
(American Airlines)

Popular in

December

Cheapest in

April

Average price

$272

Good round-trip deal

$199 or less

Good one-way deal

$218 or less
From Illinois to Wisconsin
One-way flight from Illinois to Wisconsin
Highest demand for flights based on searches. 25% potential increase in price ($96 potential increase over avg. RT price).
Cheapest flight prices on average. 10% potential price decrease ($28 potential savings vs. average RT price).
Average for round-trip flights in July 2025
Price to beat on a round-trip flight from Illinois to Wisconsin.
Price to beat on a one-way flight from Illinois to Wisconsin.

Find flight deals from Illinois to Wisconsin

Cheapest flights from Illinois to Wisconsin
Explore the most affordable flight options available from Illinois to Wisconsin. Find the lowest fares from popular airlines and budget airlines, with prices last updated on julio 3, 2025.

This American Airlines deal was found by Cheapflights users on 7/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 8/97:44 pmSTL - ORD
Nonstop1h 31mAmerican Airlines
mar. 8/127:00 pmORD - STL
Nonstop1h 25mAmerican Airlines
Deal found 7/3$91
This Southwest deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 8/185:25 pmMDW - MSP
Nonstop1h 35mSouthwest
jue. 8/212:20 pmMSP - MDW
1 stop3h 10mSouthwest
Deal found 7/2$107
This Flightnetwork deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 8/167:00 amORD - MSP
1 stop17h 37mFrontier
sáb. 8/237:50 amMSP - ORD
1 stop26h 47mFrontier
Deal found 7/2$108
This United Airlines deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 8/287:19 amORD - MSP
Nonstop1h 36mUnited Airlines
lun. 9/16:00 amMSP - ORD
Nonstop1h 43mUnited Airlines
Deal found 7/2$109
This Southwest deal was found by Cheapflights users on 7/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 8/122:25 pmSTL - ORD
1 stop7h 05mSouthwest
mar. 8/267:30 amORD - STL
1 stop7h 00mSouthwest
Deal found 7/1$111
This Priceline deal was found by Cheapflights users on 7/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 9/114:00 pmSTL - ORD
1 stop8h 10mFrontier
dom. 9/145:10 amORD - STL
1 stop9h 54mFrontier
Deal found 7/3$112
This Priceline deal was found by Cheapflights users on 7/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 7/245:01 amORD - MSP
1 stop6h 21mMultiple Airlines
lun. 7/283:36 pmMSP - ORD
Nonstop1h 39mMultiple Airlines
Deal found 7/3$116
This Sun Country Air deal was found by Cheapflights users on 7/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Sun Country Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 9/1212:01 pmORD - MSP
Nonstop1h 47mSun Country Air
dom. 9/145:30 pmMSP - ORD
Nonstop1h 42mSun Country Air
Deal found 7/3$118
This Delta deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 9/26:10 amORD - MSP
Nonstop1h 28mDelta
sáb. 9/68:00 pmMSP - ORD
Nonstop1h 35mDelta
Deal found 7/2$119
This Delta deal was found by Cheapflights users on 7/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 8/209:15 amMDW - MSP
Nonstop1h 38mDelta
sáb. 9/204:00 pmMSP - MDW
Nonstop1h 35mDelta
Deal found 7/3$119
This Priceline deal was found by Cheapflights users on 7/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 8/77:40 amMDW - MSP
1 stop7h 49mFrontier
lun. 8/116:00 amMSP - MDW
1 stop5h 41mFrontier
Deal found 7/1$121
This United Airlines deal was found by Cheapflights users on 7/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 7/318:00 amSTL - ORD
Nonstop1h 25mUnited Airlines
jue. 8/79:20 pmORD - STL
Nonstop1h 25mUnited Airlines
Deal found 7/1$124

Cheapflights Fare Finder

Customize your flight search to find flights from Illinois to Wisconsin that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated julio 3, 2025.
Use the filters below to find and compare flights from Illinois to Wisconsin that are best for you.

Fly from

Illinois

Fly to

Wisconsin

Route

Depart

Return

Price

St. LouisChicago

STL - ORD

STLORD

Lambert-St Louis

sáb. 8/9

7:44 pm-9:15 pm

Nonstop1h 31m

Chicago O'Hare Intl

mar. 8/12

7:00 pm-8:25 pm

Nonstop1h 25m

$91

ChicagoMinneapolis

MDW - MSP

MDWMSP

Chicago Midway

lun. 8/18

5:25 pm-7:00 pm

Nonstop1h 35m

Minneapolis St Paul

jue. 8/21

2:20 pm-5:30 pm

1 stop3h 10m

$107

ChicagoMinneapolis

ORD - MSP

ORDMSP

Chicago O'Hare Intl

sáb. 8/16

7:00 am-12:37 am

1 stop17h 37m

Minneapolis St Paul

sáb. 8/23

7:50 am-10:37 am

1 stop26h 47m

$108

ChicagoMinneapolis

ORD - MSP

ORDMSP

Chicago O'Hare Intl

jue. 8/28

7:19 am-8:55 am

Nonstop1h 36m

Minneapolis St Paul

lun. 9/1

6:00 am-7:43 am

Nonstop1h 43m

$109

St. LouisChicago

STL - ORD

STLORD

Lambert-St Louis

mar. 8/12

2:25 pm-9:30 pm

1 stop7h 05m

Chicago O'Hare Intl

mar. 8/26

7:30 am-2:30 pm

1 stop7h 00m

$111

St. LouisChicago

STL - ORD

STLORD

Lambert-St Louis

jue. 9/11

4:00 pm-12:10 am

1 stop8h 10m

Chicago O'Hare Intl

dom. 9/14

5:10 am-3:04 pm

1 stop9h 54m

$112

ChicagoMinneapolis

ORD - MSP

ORDMSP

Chicago O'Hare Intl

jue. 7/24

5:01 am-11:22 am

1 stop6h 21m

Minneapolis St Paul

lun. 7/28

3:36 pm-5:15 pm

Nonstop1h 39m

$116

ChicagoMinneapolis

ORD - MSP

ORDMSP

Chicago O'Hare Intl

vie. 9/12

12:01 pm-1:48 pm

Nonstop1h 47m

Minneapolis St Paul

dom. 9/14

5:30 pm-7:12 pm

Nonstop1h 42m

$118

ChicagoMinneapolis

ORD - MSP

ORDMSP

Chicago O'Hare Intl

mar. 9/2

8:25 am-9:59 am

Nonstop1h 34m

Minneapolis St Paul

dom. 9/7

6:55 am-8:24 am

Nonstop1h 29m

$119

ChicagoMinneapolis

MDW - MSP

MDWMSP

Chicago Midway

mié. 8/20

9:15 am-10:53 am

Nonstop1h 38m

Minneapolis St Paul

sáb. 9/20

4:00 pm-5:35 pm

Nonstop1h 35m

$119

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/2

Showing 1-10 of 60 results
1
2
3
...
6

Best time to book a flight from Illinois to Wisconsin

Have a flexible travel schedule? Discover the best time to fly to Wisconsin from Illinois with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Illinois to Wisconsin

What is the cheapest month to book a flight from Illinois to Wisconsin?

Currently, February is the cheapest month in which you can book a flight from Illinois to Wisconsin (average of $280). Flying from Illinois to Wisconsin in June is currently the most expensive (average of $376). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from IL to WI?

Find hourly flight availability from Illinois to Wisconsin. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated julio 3, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Illinois to Wisconsin as you normally would.

Weekly flight availability from Illinois to Wisconsin

Explore weekly flight availability from Illinois to Wisconsin. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated julio 3, 2025.

The most flights from USIL to USWI are scheduled on a Thursday (50 on average). You will have fewer flight options on Friday, which is when the least amount of flights are scheduled (14 on average).

Reviews of airlines servicing Wisconsin

Get insights into the airlines that provide service to Wisconsin. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Wisconsin. Reviews last updated julio 3, 2025.
Read through reviews of airlines operating flights from Illinois to Wisconsin, such as Southwest, Delta, and United Airlines. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Comfort

8.0

Crew

8.6

Boarding

8.2

Overall

8.0

Entertainment

7.6

Food

7.0

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.

Comfort

8.0

Crew

8.6

Boarding

8.2

Overall

8.0

Entertainment

7.6

Food

7.0

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
8.0
Very good

Comfort

8.0

Crew

8.6

Boarding

8.2

Overall

8.0

Entertainment

7.6

Food

7.0

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.

Comfort

8.0

Crew

8.6

Boarding

8.2

Overall

8.0

Entertainment

7.6

Food

7.0

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.

Comfort

8.0

Crew

8.6

Boarding

8.2

Overall

8.0

Entertainment

7.6

Food

7.0

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.

Comfort

8.0

Crew

8.6

Boarding

8.2

Overall

8.0

Entertainment

7.6

Food

7.0

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.

Related info for your journey

Find useful and relevant information for your journey from Illinois to Wisconsin. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • What are the cheapest airlines to fly from Illinois to Wisconsin one-way?

    One-way options have recently been found by users for as low as $49 on American Airlines. Other airlines that offer cheap prices include Frontier from $56 and Southwest from $56 one-way.

  • Can I find deals for flights from Illinois to Wisconsin that include hotel bookings?

    Yes. In addition to deals on Illinois to Wisconsin flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Illinois to Wisconsin?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Illinois to Wisconsin.

  • Can I find deals for business class flights from Illinois to Wisconsin?

    Yes. Cheapflights offers flight deals from Illinois to Wisconsin by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Illinois to Wisconsin?

    Currently, February is the cheapest month in which you can book a flight from Illinois to Wisconsin (average of $280). Flying from Illinois to Wisconsin in June is currently the most expensive (average of $376). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Illinois to Wisconsin

See prices for flight routes from nearby airports that may be better suited for you.

Top 2 airlines flying from Illinois to Wisconsin

Discover the top 2 airlines that operate flights from Illinois to Wisconsin. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated julio 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$179Average$284FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$179Average$312FlexibilityNo cancel feeOn-time71%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.