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Illinois

$49+ Cheap flights from Wisconsin to Illinois

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 5/8. Fares are subject to change and may not be available on all flights or dates of travel.
MKE — ORD
Apr 22 — Apr 291
Tue 4/22
Tue 4/29
1 adult, Economy
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Cheap flight deals from Wisconsin to Illinois

Keep the following information in mind while searching for Wisconsin to Illinois flight deals. Data was last updated April 17, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$97
(Delta)

One-way from

$49
(Delta)

Popular in

November

Cheapest in

March

Average price

$357

Good round-trip deal

$283 or less

Good one-way deal

$176 or less
Provider with most accurate pricing for Milwaukee-Mitchell-Chicago (CHI) flight deals.
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Provider most trusted by Cheapflights users for Milwaukee-Mitchell-Chicago (CHI) flights.
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From Wisconsin to Illinois
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One-way flight from Wisconsin to Illinois
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Highest demand for flights based on searches. 3% potential increase in price ($12 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($17 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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Price to beat on a round-trip flight from Wisconsin to Illinois.
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Price to beat on a one-way flight from Wisconsin to Illinois.
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Find flight deals from Wisconsin to Illinois

Cheapest flights from Wisconsin to Illinois
Explore the most affordable flight options available from Wisconsin to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 17, 2025.

This Southwest deal was found by Cheapflights users on 4/15. 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.
Thu 5/89:20 amMSP - MDW
Nonstop1h 30mSouthwest
Mon 5/127:10 amMDW - MSP
Nonstop1h 25mSouthwest
Deal found 4/15$97
This Delta deal was found by Cheapflights users on 4/16. 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.
Thu 5/86:55 amMSP - ORD
Nonstop1h 29mDelta
Mon 5/126:24 amORD - MSP
Nonstop1h 30mDelta
Deal found 4/16$97
This American Airlines deal was found by Cheapflights users on 4/17. 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.
Thu 5/810:30 pmORD - STL
Nonstop1h 21mAmerican Airlines
Mon 5/125:00 amSTL - ORD
Nonstop1h 19mAmerican Airlines
Deal found 4/17$97
This American Airlines deal was found by Cheapflights users on 4/16. 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.
Thu 5/85:28 amMSP - ORD
Nonstop1h 31mAmerican Airlines
Thu 5/810:28 pmORD - MSP
Nonstop1h 31mAmerican Airlines
Deal found 4/16$98
This Cheapflightsfares deal was found by Cheapflights users on 4/16. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/95:30 pmMSP - ORD
Nonstop1h 39mSun Country Air
Sun 5/116:11 pmORD - MSP
Nonstop1h 44mSun Country Air
Deal found 4/16$116
This Sun Country Air deal was found by Cheapflights users on 4/15. 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.
Sat 4/269:45 amMSP - STL
Nonstop1h 37mSun Country Air
Mon 4/286:00 pmSTL - MSP
Nonstop1h 40mSun Country Air
Deal found 4/15$118
This United Airlines deal was found by Cheapflights users on 4/16. 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.
Thu 5/228:00 amMSP - ORD
Nonstop1h 38mUnited Airlines
Tue 5/277:25 amORD - MSP
Nonstop1h 39mUnited Airlines
Deal found 4/16$119
This Delta deal was found by Cheapflights users on 4/16. 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.
Wed 5/2111:40 amMSP - MDW
Nonstop1h 35mDelta
Sun 5/259:20 amMDW - MSP
Nonstop1h 39mDelta
Deal found 4/16$138
This Southern / Mokulele deal was found by Cheapflights users on 4/16. 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 Southern / Mokulele is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/88:25 amORD - STL
1 stop11h 45mSouthern / Mokulele
Sat 5/1012:15 pmSTL - ORD
1 stop19h 25mSouthern / Mokulele
Deal found 4/16$140
This FlightHub deal was found by Cheapflights users on 4/16. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/85:30 pmMSP - ORD
Nonstop1h 39mMultiple Airlines
Fri 5/95:21 pmORD - MSP
1 stop7h 12mMultiple Airlines
Deal found 4/16$142
This Gotogate deal was found by Cheapflights users on 4/16. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/107:30 pmMSP - STL
Nonstop1h 10mMultiple Airlines
Mon 5/126:53 pmSTL - MSP
1 stop5h 35mMultiple Airlines
Deal found 4/16$144
This Southwest deal was found by Cheapflights users on 4/17. 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.
Tue 5/131:30 pmORD - STL
1 stop7h 45mSouthwest
Wed 5/285:20 amSTL - ORD
1 stop5h 25mSouthwest
Deal found 4/17$147

Cheapflights Fare Finder

Customize your flight search to find flights from Wisconsin to Illinois 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 April 17, 2025.
Use the filters below to find and compare flights from Wisconsin to Illinois that are best for you.

Fly from

Wisconsin

Fly to

Illinois

Route

Depart

Return

Price

MinneapolisChicago

MSP - MDW

MSPMDW

Minneapolis St Paul

Thu 5/8

7:03 am-8:36 am

Nonstop1h 33m

Chicago Midway

Thu 5/8

1:55 pm-3:35 pm

Nonstop1h 40m

$97

ChicagoSt. Louis

ORD - STL

ORDSTL

Chicago O'Hare Intl

Thu 5/8

10:30 pm-11:51 pm

Nonstop1h 21m

Lambert-St Louis

Mon 5/12

5:00 am-6:19 am

Nonstop1h 19m

$97

MinneapolisChicago

MSP - ORD

MSPORD

Minneapolis St Paul

Thu 5/8

6:55 am-8:24 am

Nonstop1h 29m

Chicago O'Hare Intl

Mon 5/12

6:24 am-7:54 am

Nonstop1h 30m

$97

MinneapolisChicago

MSP - ORD

MSPORD

Minneapolis St Paul

Thu 5/8

5:28 am-6:59 am

Nonstop1h 31m

Chicago O'Hare Intl

Thu 5/8

10:28 pm-11:59 pm

Nonstop1h 31m

$98

MinneapolisChicago

MSP - MDW

MSPMDW

Minneapolis St Paul

Thu 5/8

5:15 am-6:45 am

Nonstop1h 30m

Chicago Midway

Mon 5/12

6:25 pm-9:50 pm

1 stop3h 25m

$107

MinneapolisChicago

MSP - ORD

MSPORD

Minneapolis St Paul

Fri 5/9

5:30 pm-7:09 pm

Nonstop1h 39m

Chicago O'Hare Intl

Mon 5/12

8:05 pm-9:49 pm

Nonstop1h 44m

$116

ChicagoSt. Louis

ORD - STL

ORDSTL

Chicago O'Hare Intl

Tue 6/3

5:45 pm-11:00 pm

1 stop5h 15m

Lambert-St Louis

Wed 6/4

5:20 am-10:45 am

1 stop5h 25m

$117

MinneapolisSt. Louis

MSP - STL

MSPSTL

Minneapolis St Paul

Sat 4/26

9:45 am-11:22 am

Nonstop1h 37m

Lambert-St Louis

Mon 4/28

6:00 pm-7:40 pm

Nonstop1h 40m

$118

ChicagoSt. Louis

ORD - STL

ORDSTL

Chicago O'Hare Intl

Thu 5/15

8:25 am-8:10 pm

1 stop11h 45m

Lambert-St Louis

Thu 5/22

12:15 pm-7:40 am

1 stop19h 25m

$140

MinneapolisChicago

MSP - ORD

MSPORD

Minneapolis St Paul

Thu 5/8

5:30 pm-7:09 pm

Nonstop1h 39m

Chicago O'Hare Intl

Fri 5/9

5:21 pm-12:33 am

1 stop7h 12m

$142

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/16

Showing 1-10 of 60 results
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Best time to book a flight from Wisconsin to Illinois

Have a flexible travel schedule? Discover the best time to fly to Illinois from Wisconsin 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 Wisconsin to Illinois

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

Currently, August is the cheapest month in which you can book a flight from Wisconsin to Illinois (average of $245). Flying from Wisconsin to Illinois in March is currently the most expensive (average of $321). 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 WI to IL?

Find hourly flight availability from Wisconsin to Illinois. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 17, 2025.

When flying from Wisconsin to Illinois, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from Wisconsin to Illinois

Explore weekly flight availability from Wisconsin to Illinois. 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 April 17, 2025.

The most flights from USWI to USIL are scheduled on a Wednesday (47 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (29 on average).

Rainfall in Illinois by month

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

In terms of precipitation, rainfall in Illinois ranges from 1.7 - 4.9 inches per month. August is typically the wettest month, when rainfall can reach 4.9 in. January is typically the driest time to visit Illinois when rainfall is around 1.7 in.

Temperature in Illinois by month

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

If weather is an important factor for your trip to Illinois, 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 23.0 F).

Reviews of airlines servicing Illinois

Get insights into the airlines that provide service to Illinois. 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 Illinois. Reviews last updated April 17, 2025.
To help decide which airline to fly from Wisconsin to Illinois, see what other customers have to say about Alaska Airlines, Southwest and Delta. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,882 reviews

Boarding

8.2

Overall

8.0

Food

7.1

Crew

8.5

Comfort

7.9

Entertainment

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Alaska Airlines
8.0
Very good
9,882 reviews
Alaska Airlines
8.0
Very good
9,882 reviews

Boarding

8.2

Overall

8.0

Food

7.1

Crew

8.5

Comfort

7.9

Entertainment

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Southwest
8.0
Very good
4,280 reviews
Alaska Airlines
8.0
Very good
9,882 reviews

Boarding

8.2

Overall

8.0

Food

7.1

Crew

8.5

Comfort

7.9

Entertainment

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Delta
8.0
Very good
7,917 reviews
Alaska Airlines
8.0
Very good
9,882 reviews

Boarding

8.2

Overall

8.0

Food

7.1

Crew

8.5

Comfort

7.9

Entertainment

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
United Airlines
7.4
Good
8,667 reviews
Alaska Airlines
8.0
Very good
9,882 reviews

Boarding

8.2

Overall

8.0

Food

7.1

Crew

8.5

Comfort

7.9

Entertainment

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Allegiant Air
7.3
Good
734 reviews
Alaska Airlines
8.0
Very good
9,882 reviews

Boarding

8.2

Overall

8.0

Food

7.1

Crew

8.5

Comfort

7.9

Entertainment

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

Related info for your journey

Find useful and relevant information for your journey from Wisconsin to Illinois. 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 Wisconsin to Illinois one-way?

    The cheapest airlines for a one-way flight from Wisconsin to Illinois are Delta ($49), United Airlines ($49), and American Airlines ($50).

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Wisconsin to Illinois 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 Wisconsin to Illinois?

    Currently, August is the cheapest month in which you can book a flight from Wisconsin to Illinois (average of $245). Flying from Wisconsin to Illinois in March is currently the most expensive (average of $321). 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

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Alternative routes for Wisconsin to Illinois

See prices for flight routes from nearby airports that may be better suited for you.
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Top 3 airlines flying from Wisconsin to Illinois

Discover the top 3 airlines that operate flights from Wisconsin to Illinois. 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 April 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$180Average$282FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$189Average$320FlexibilityNo cancel feeOn-time71%
DeltaCheapest$198Average$208FlexibilityNo cancel feeOn-timeN/A

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