HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Wisconsin

$54+ 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 12/15. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — MKE
Nov 13 — Nov 201
Thu 11/13
Thu 11/20
1 adult, Economy
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 October 14, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$70
(FlightHub)

One-way from

$54
(Frontier)

Popular in

December

Cheapest in

September

Average price

$304

Good round-trip deal

$179 or less

Good one-way deal

$209 or less
Provider with most accurate pricing for Chicago (CHI)-Milwaukee-Mitchell flight deals.
Search Deals
Provider most trusted by Cheapflights users for Chicago (CHI)-Milwaukee-Mitchell flights.
Search Deals
From Illinois to Wisconsin
Search Deals
One-way flight from Illinois to Wisconsin
Search Deals
Highest demand for flights based on searches. 21% potential increase in price ($80 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 10% potential price decrease ($27 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
Search Deals
Price to beat on a round-trip flight from Illinois to Wisconsin.
Search Deals
Price to beat on a one-way flight from Illinois to Wisconsin.
Search Deals

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 October 14, 2025.

This FlightHub deal was found by Cheapflights users on 10/14. 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 11/279:20 amORD - MSP
Nonstop1h 42mMultiple Airlines
Fri 12/58:41 amMSP - ORD
Nonstop1h 35mMultiple Airlines
Deal found 10/14$70
This Sun Country Air deal was found by Cheapflights users on 10/12. 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.
Mon 11/1011:45 amORD - MSP
Nonstop1h 42mSun Country Air
Mon 11/179:00 amMSP - ORD
Nonstop1h 45mSun Country Air
Deal found 10/12$78
This FlightHub deal was found by Cheapflights users on 10/13. 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.
Fri 12/1211:48 amORD - MSP
Nonstop1h 42mMultiple Airlines
Mon 12/158:41 amMSP - ORD
Nonstop1h 35mMultiple Airlines
Deal found 10/13$79
This Frontier deal was found by Cheapflights users on 10/12. 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.
Fri 12/56:13 amORD - MSP
Nonstop1h 33mFrontier
Sat 12/66:45 amMSP - ORD
1 stop11h 49mFrontier
Deal found 10/12$80
This Priceline deal was found by Cheapflights users on 10/12. 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 12/126:13 amORD - MSP
Nonstop1h 33mMultiple Airlines
Sun 12/149:06 amMSP - ORD
Nonstop1h 45mMultiple Airlines
Deal found 10/12$82
This Booking.com deal was found by Cheapflights users on 10/12. 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.
Mon 11/1011:45 amORD - MSP
Nonstop1h 42mSun Country Air
Sun 11/163:54 pmMSP - ORD
Nonstop1h 38mSun Country Air
Deal found 10/12$84
This Cheapflightsfares deal was found by Cheapflights users on 10/12. 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 10/317:39 pmORD - MSP
Nonstop1h 43mSun Country Air
Mon 11/39:00 amMSP - ORD
Nonstop1h 45mSun Country Air
Deal found 10/12$85
This Frontier deal was found by Cheapflights users on 10/13. 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.
Fri 12/56:13 amORD - MSP
Nonstop1h 33mFrontier
Mon 12/88:41 amMSP - ORD
Nonstop1h 35mFrontier
Deal found 10/13$89
This Frontier deal was found by Cheapflights users on 10/13. 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.
Fri 12/126:13 amORD - MSP
Nonstop1h 33mFrontier
Mon 12/158:41 amMSP - ORD
Nonstop1h 35mFrontier
Deal found 10/13$90
This Sun Country Air deal was found by Cheapflights users on 10/12. 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.
Fri 11/2110:24 amORD - MSP
Nonstop1h 42mSun Country Air
Sun 11/238:54 amMSP - ORD
Nonstop1h 45mSun Country Air
Deal found 10/12$92
This Delta deal was found by Cheapflights users on 10/14. 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 11/138:50 amORD - MSP
Nonstop1h 36mDelta
Thu 11/206:55 amMSP - ORD
Nonstop1h 35mDelta
Deal found 10/14$97
This United Airlines deal was found by Cheapflights users on 10/14. 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.
Wed 11/125:24 pmSTL - ORD
Nonstop1h 23mUnited Airlines
Wed 11/192:23 pmORD - STL
Nonstop1h 26mUnited Airlines
Deal found 10/14$97

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 October 14, 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

Tue 12/16

11:25 am-12:54 pm

Nonstop1h 29m

Chicago O'Hare Intl

Thu 1/8

1:00 pm-2:30 pm

Nonstop1h 30m

$97

St. LouisChicago

STL - ORD

STLORD

Lambert-St Louis

Tue 3/3

10:30 am-11:58 am

Nonstop1h 28m

Chicago O'Hare Intl

Wed 3/4

7:35 pm-9:00 pm

Nonstop1h 25m

$97

ChicagoMinneapolis

ORD - MSP

ORDMSP

Chicago O'Hare Intl

Mon 11/10

11:45 am-1:27 pm

Nonstop1h 42m

Minneapolis St Paul

Thu 11/13

5:00 pm-6:40 pm

Nonstop1h 40m

$117

ChicagoMinneapolis

ORD - MSP

ORDMSP

Chicago O'Hare Intl

Mon 11/24

6:00 am-7:36 am

Nonstop1h 36m

Minneapolis St Paul

Wed 12/3

6:55 am-8:40 am

Nonstop1h 45m

$130

ChicagoMinneapolis

ORD - MSP

ORDMSP

Chicago O'Hare Intl

Thu 11/27

6:00 am-7:36 am

Nonstop1h 36m

Minneapolis St Paul

Sun 12/7

6:10 pm-7:55 pm

Nonstop1h 45m

$130

ChicagoMinneapolis

ORD - MSP

ORDMSP

Chicago O'Hare Intl

Sat 12/27

8:26 pm-10:05 pm

Nonstop1h 39m

Minneapolis St Paul

Tue 12/30

4:06 pm-5:44 pm

Nonstop1h 38m

$138

ChicagoMinneapolis

ORD - MSP

ORDMSP

Chicago O'Hare Intl

Fri 11/14

6:00 am-7:36 am

Nonstop1h 36m

Minneapolis St Paul

Sat 11/15

3:17 pm-4:52 pm

Nonstop1h 35m

$142

ChicagoMinneapolis

ORD - MSP

ORDMSP

Chicago O'Hare Intl

Thu 11/13

6:00 am-7:36 am

Nonstop1h 36m

Minneapolis St Paul

Sat 11/15

3:17 pm-4:52 pm

Nonstop1h 35m

$142

ChicagoMinneapolis

ORD - MSP

ORDMSP

Chicago O'Hare Intl

Wed 11/12

6:00 am-7:36 am

Nonstop1h 36m

Minneapolis St Paul

Wed 11/12

1:29 pm-3:02 pm

Nonstop1h 33m

$142

ChicagoMinneapolis

ORD - MSP

ORDMSP

Chicago O'Hare Intl

Fri 11/14

6:00 am-7:36 am

Nonstop1h 36m

Minneapolis St Paul

Fri 11/14

8:04 pm-9:36 pm

Nonstop1h 32m

$142

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/14

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, September is the cheapest month in which you can book a flight from Illinois to Wisconsin (average of $178). Flying from Illinois to Wisconsin in March is currently the most expensive (average of $268). 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 October 14, 2025.

One of the essential ways to save on airfare from Illinois to Wisconsin is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the evening could potentially save you up to 21% on airfare.

What is the cheapest day to fly from Illinois to Wisconsin?

Use this chart to determine the cheapest time to fly round-trip from Illinois to Wisconsin. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Illinois to Wisconsin flight should consider departing on Wednesday evenings when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

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 October 14, 2025.

The most flights from USIL to USWI are scheduled on a Tuesday (56 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (48 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 October 14, 2025.
Read through reviews of airlines operating flights from Illinois to Wisconsin, such as United Airlines and American 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.
United Airlines
7.4
Good
8,976 reviews

Food

6.6

Crew

8.1

Comfort

7.3

Entertainment

7.1

Boarding

7.7

Overall

7.4

Reviews

1 / 20
4.0
Okay

Tim,Sep 2025

IAD - GSP

This was pretty bad. It’s chaos at the Dulles boarding gates for the small regional jets because they use one gate to board 3-4 flights at a time. So, it’s difficult knowing where and when to go. There is little space for any size of carrry-on, so most had to gate check their bags. However, the worst of it was that our single flight attendant fell asleep before we took off and the pilot couldn’t do so until she responded to his messages. My wife had to wake her up! So we were a little late leaving. Not to be thwarted, the flight attendant fell asleep right after take off and there was no sight of her during the flight. When the aircraft touched down, a tray of unsecured canned drinks came crashing onto the aisle up front. I can only assume someone didn’t do what they were supposed to. The pilot was great, but I’m sure he must not be happy with this crew member.
United Airlines
7.4
Good
8,976 reviews
United Airlines
7.4
Good
8,976 reviews

Food

6.6

Crew

8.1

Comfort

7.3

Entertainment

7.1

Boarding

7.7

Overall

7.4

Reviews

1 / 20
4.0
Okay

Tim,Sep 2025

IAD - GSP

This was pretty bad. It’s chaos at the Dulles boarding gates for the small regional jets because they use one gate to board 3-4 flights at a time. So, it’s difficult knowing where and when to go. There is little space for any size of carrry-on, so most had to gate check their bags. However, the worst of it was that our single flight attendant fell asleep before we took off and the pilot couldn’t do so until she responded to his messages. My wife had to wake her up! So we were a little late leaving. Not to be thwarted, the flight attendant fell asleep right after take off and there was no sight of her during the flight. When the aircraft touched down, a tray of unsecured canned drinks came crashing onto the aisle up front. I can only assume someone didn’t do what they were supposed to. The pilot was great, but I’m sure he must not be happy with this crew member.
American Airlines
7.2
Good
11,042 reviews
United Airlines
7.4
Good
8,976 reviews

Food

6.6

Crew

8.1

Comfort

7.3

Entertainment

7.1

Boarding

7.7

Overall

7.4

Reviews

1 / 20
4.0
Okay

Tim,Sep 2025

IAD - GSP

This was pretty bad. It’s chaos at the Dulles boarding gates for the small regional jets because they use one gate to board 3-4 flights at a time. So, it’s difficult knowing where and when to go. There is little space for any size of carrry-on, so most had to gate check their bags. However, the worst of it was that our single flight attendant fell asleep before we took off and the pilot couldn’t do so until she responded to his messages. My wife had to wake her up! So we were a little late leaving. Not to be thwarted, the flight attendant fell asleep right after take off and there was no sight of her during the flight. When the aircraft touched down, a tray of unsecured canned drinks came crashing onto the aisle up front. I can only assume someone didn’t do what they were supposed to. The pilot was great, but I’m sure he must not be happy with this crew member.

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.

  • How long is the flight from Illinois to Wisconsin?

    Departing from Illinois to Wisconsin will take you 1h 29m. The distance from Illinois to Wisconsin is about 258 mi. Most flights are nonstop.

  • 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 $56 on Southwest. Other airlines that offer cheap prices include Delta from $59 and Frontier from $64 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, September is the cheapest month in which you can book a flight from Illinois to Wisconsin (average of $178). Flying from Illinois to Wisconsin in March is currently the most expensive (average of $268). 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.
Los Angeles to John F Kennedy Intl flights
John F Kennedy Intl to Orlando flights
John F Kennedy Intl to Miami flights
Dallas/Fort Worth to John F Kennedy Intl flights
John F Kennedy Intl to Los Angeles flights
Dallas/Fort Worth to LaGuardia flights
John F Kennedy Intl to Fort Lauderdale flights
Newark to Fort Lauderdale flights
John F Kennedy Intl to Las Vegas flights
Dallas/Fort Worth to Las Vegas flights
John F Kennedy Intl to Dallas/Fort Worth flights
O'Hare Intl to John F Kennedy Intl flights
John F Kennedy Intl to O'Hare Intl flights
Los Angeles to Newark flights
LaGuardia to Fort Lauderdale flights
Seattle to Las Vegas flights
Newark to Miami flights
LaGuardia to Dallas/Fort Worth flights
San Francisco to John F Kennedy Intl flights
LaGuardia to Miami flights
Los Angeles to Seattle flights
Dallas/Fort Worth to Los Angeles flights
Seattle to Los Angeles flights
John F Kennedy Intl to San Francisco flights
Newark to Orlando flights
Los Angeles to Honolulu flights
John F Kennedy Intl to Tampa flights
Seattle to Dallas/Fort Worth flights
Newark to Los Angeles flights
Dallas/Fort Worth to Orlando flights
Newark to Dallas/Fort Worth flights
Dallas/Fort Worth to Newark flights
O'Hare Intl to Las Vegas flights
Los Angeles to Dallas/Fort Worth flights
San Francisco to Newark flights
Orlando to John F Kennedy Intl flights
Seattle to Sky Harbor Intl flights
Los Angeles to LaGuardia flights
Dulles Intl to Dallas/Fort Worth flights
San Francisco to Las Vegas flights
Newark to Las Vegas flights
LaGuardia to Orlando flights
Baltimore to Dallas/Fort Worth flights
Miami to John F Kennedy Intl flights
LaGuardia to Hobby flights
John F Kennedy Intl to Hobby flights
Seattle to John F Kennedy Intl flights
Philadelphia to Orlando flights
Newark to San Francisco flights
Atlanta to Las Vegas flights

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 October 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$179Average$277FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$179Average$290FlexibilityNo cancel feeOn-time69%

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.