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Wisconsin

$58+ 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 4/18. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — MKE
Apr 5 — Apr 121
Sat 4/5
Sat 4/12
1 adult, Economy
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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 March 31, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$106
(eDestinos)

One-way from

$58
(Cheapflightsfares)

Popular in

December

Cheapest in

September

Good round-trip deal

$180 or less

Good one-way deal

$98 or less
Provider with most accurate pricing for Chicago (CHI)-Milwaukee-Mitchell flight deals.
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Provider most trusted by Cheapflights users for Chicago (CHI)-Milwaukee-Mitchell flights.
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From Illinois to Wisconsin
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One-way flight from Illinois to Wisconsin
Search Deals
Highest demand for flights based on searches. 20% potential increase in price ($76 potential increase over avg. RT price).
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Cheapest flight prices on average. 9% potential price decrease ($26 potential savings vs. average RT price).
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Price to beat on a round-trip flight from Illinois to Wisconsin.
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Price to beat on a one-way flight from Illinois to Wisconsin.
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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 March 31, 2025.

This eDestinos deal was found by Cheapflights users on 3/30. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/28:05 pmORD - MSP
Nonstop1h 44mSun Country Air
Sun 5/45:30 pmMSP - ORD
Nonstop1h 39mSun Country Air
Deal found 3/30$106
This Trip.com deal was found by Cheapflights users on 3/30. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/2712:15 pmSTL - ORD
1 stop3h 35mSouthern / Mokulele
Sun 5/48:20 pmORD - STL
1 stop15h 25mSouthern / Mokulele
Deal found 3/30$127
This Trip.com deal was found by Cheapflights users on 3/31. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/255:23 pmORD - MSP
1 stop7h 12mMultiple Airlines
Sun 4/274:14 pmMSP - ORD
Nonstop1h 39mMultiple Airlines
Deal found 3/31$145
This Priceline deal was found by Cheapflights users on 3/31. 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.
Fri 4/256:58 pmSTL - MSP
1 stop5h 37mMultiple Airlines
Sat 4/269:45 amMSP - STL
Nonstop1h 37mMultiple Airlines
Deal found 3/31$148
This Frontier deal was found by Cheapflights users on 3/30. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/306:58 pmSTL - MSP
1 stop5h 37mFrontier
Thu 5/16:00 amMSP - STL
1 stop9h 07mFrontier
Deal found 3/30$158
This CheapOair deal was found by Cheapflights users on 3/30. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/255:23 pmORD - MSP
1 stop7h 12mFrontier
Mon 4/286:00 amMSP - ORD
1 stop17h 38mFrontier
Deal found 3/30$160
This CheapOair deal was found by Cheapflights users on 3/30. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/258:01 pmMDW - MSP
1 stop28h 34mFrontier
Mon 4/286:00 amMSP - MDW
1 stop13h 06mFrontier
Deal found 3/30$160
This CheapOair deal was found by Cheapflights users on 3/31. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/196:33 pmSTL - ORD
1 stop10h 28mMultiple Airlines
Tue 4/298:20 pmORD - STL
1 stop15h 25mMultiple Airlines
Deal found 3/31$163
This CheapOair deal was found by Cheapflights users on 3/30. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/96:51 pmSTL - ORD
1 stop5h 46mFrontier
Sun 4/136:45 amORD - STL
1 stop26h 21mFrontier
Deal found 3/30$171
This American Airlines deal was found by Cheapflights users on 3/30. 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.
Wed 5/148:35 amORD - MKE
Nonstop0h 47mAmerican Airlines
Wed 5/216:23 pmMKE - ORD
Nonstop1h 00mAmerican Airlines
Deal found 3/30$175
This Booking.com deal was found by Cheapflights users on 3/30. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/184:57 pmSTL - MKE
1 stop19h 00mFrontier
Sun 4/2010:32 amMKE - STL
1 stop22h 34mFrontier
Deal found 3/30$178
This American Airlines deal was found by Cheapflights users on 3/30. 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.
Sat 5/101:15 pmORD - MSP
Nonstop1h 33mAmerican Airlines
Sat 5/106:10 pmMSP - ORD
Nonstop1h 35mAmerican Airlines
Deal found 3/30$178

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 March 31, 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

ChicagoMinneapolis

ORD - MSP

ORDMSP

Chicago O'Hare Intl

Fri 5/2

8:05 pm-9:49 pm

Nonstop1h 44m

Minneapolis St Paul

Sun 5/4

5:30 pm-7:09 pm

Nonstop1h 39m

$106

St. LouisChicago

STL - ORD

STLORD

Lambert-St Louis

Sun 4/27

12:15 pm-3:50 pm

1 stop3h 35m

Chicago O'Hare Intl

Sun 5/4

8:20 pm-11:45 am

1 stop15h 25m

$127

ChicagoMinneapolis

ORD - MSP

ORDMSP

Chicago O'Hare Intl

Fri 4/25

5:23 pm-12:35 am

1 stop7h 12m

Minneapolis St Paul

Sun 4/27

4:14 pm-5:53 pm

Nonstop1h 39m

$145

St. LouisMinneapolis

STL - MSP

STLMSP

Lambert-St Louis

Fri 4/25

6:58 pm-12:35 am

1 stop5h 37m

Minneapolis St Paul

Sat 4/26

9:45 am-11:22 am

Nonstop1h 37m

$148

St. LouisMinneapolis

STL - MSP

STLMSP

Lambert-St Louis

Wed 4/30

6:58 pm-12:35 am

1 stop5h 37m

Minneapolis St Paul

Thu 5/1

6:00 am-3:07 pm

1 stop9h 07m

$158

ChicagoMinneapolis

ORD - MSP

ORDMSP

Chicago O'Hare Intl

Fri 4/25

5:23 pm-12:35 am

1 stop7h 12m

Minneapolis St Paul

Mon 4/28

6:00 am-11:38 pm

1 stop17h 38m

$160

ChicagoMinneapolis

MDW - MSP

MDWMSP

Chicago Midway

Fri 4/25

8:01 pm-12:35 am

1 stop28h 34m

Minneapolis St Paul

Mon 4/28

6:00 am-7:06 pm

1 stop13h 06m

$160

St. LouisChicago

STL - ORD

STLORD

Lambert-St Louis

Sat 4/19

6:33 pm-5:01 am

1 stop10h 28m

Chicago O'Hare Intl

Tue 4/29

8:20 pm-11:45 am

1 stop15h 25m

$163

ChicagoMilwaukee

ORD - MKE

ORDMKE

Chicago O'Hare Intl

Wed 5/14

8:35 am-9:22 am

Nonstop0h 47m

Milwaukee-Mitchell

Wed 5/21

6:23 pm-7:23 pm

Nonstop1h 00m

$175

ChicagoMinneapolis

ORD - MSP

ORDMSP

Chicago O'Hare Intl

Sat 5/10

1:15 pm-2:48 pm

Nonstop1h 33m

Minneapolis St Paul

Sat 5/10

6:10 pm-7:45 pm

Nonstop1h 35m

$178

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/30

Showing 1-10 of 60 results
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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 March 31, 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 March 31, 2025.

The most flights from USIL to USWI are scheduled on a Sunday (45 on average). You will have fewer flight options on Friday, which is when the least amount of flights are scheduled (25 on average).

Rainfall in Wisconsin by month

Plan your trip to Wisconsin by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Wisconsin ranges from 1.4 - 4.0 inches per month. June is typically the wettest month, when rainfall can reach 4.0 in. January is typically the driest time to visit Wisconsin when rainfall is around 1.4 in.

Temperature in Wisconsin by month

Plan your trip to Wisconsin by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Wisconsin, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 21.2 F).

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 March 31, 2025.
See what other customers who have flown with Delta, Alaska Airlines and Southwest from Illinois to Wisconsin have to say. 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.
Delta
8.0
Very good
7,899 reviews

Crew

8.5

Food

7.3

Overall

8.0

Boarding

8.2

Entertainment

7.9

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Delta
8.0
Very good
7,899 reviews
Delta
8.0
Very good
7,899 reviews

Crew

8.5

Food

7.3

Overall

8.0

Boarding

8.2

Entertainment

7.9

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Alaska Airlines
8.0
Very good
9,818 reviews
Delta
8.0
Very good
7,899 reviews

Crew

8.5

Food

7.3

Overall

8.0

Boarding

8.2

Entertainment

7.9

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Southwest
8.0
Very good
4,275 reviews
Delta
8.0
Very good
7,899 reviews

Crew

8.5

Food

7.3

Overall

8.0

Boarding

8.2

Entertainment

7.9

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Hawaiian Airlines
7.9
Good
2,344 reviews
Delta
8.0
Very good
7,899 reviews

Crew

8.5

Food

7.3

Overall

8.0

Boarding

8.2

Entertainment

7.9

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
United Airlines
7.4
Good
8,614 reviews
Delta
8.0
Very good
7,899 reviews

Crew

8.5

Food

7.3

Overall

8.0

Boarding

8.2

Entertainment

7.9

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

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 $58 on Sun Country Air. Other airlines that offer cheap prices include Southern / Mokulele from $62 and Frontier from $78 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

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Alternative routes for Illinois to Wisconsin

See prices for flight routes from nearby airports that may be better suited for you.
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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 March 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$179Average$322FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$184Average$369FlexibilityNo cancel feeOn-time71%
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