HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Milwaukee

$78+ Cheap flights from Illinois to Milwaukee (MKE)

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 10/17. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — MKE
Aug 23 — Aug 301
Sat 8/23
Sat 8/30
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Illinois to Milwaukee 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 Milwaukee

Keep the following information in mind while searching for Illinois to Milwaukee flight deals. Data was last updated August 18, 2025.

Round-trip from

$159
(American Airlines)

One-way from

$78
(Priceline)

Popular in

December

Cheapest in

April

Average price

$473

Good one-way deal

$279 or less
From Illinois to Milwaukee-Mitchell
Search Deals
One-way flight from Illinois to Milwaukee-Mitchell
Search Deals
Highest demand for flights based on searches. 21% potential increase in price ($83 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 9% potential price decrease ($26 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in August 2025
Search Deals
Price to beat on a one-way flight from Illinois to Milwaukee-Mitchell.
Search Deals

Find flight deals from Illinois to Milwaukee

Cheapest flights from Illinois to Milwaukee
Explore the most affordable flight options available from Illinois to Milwaukee. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 18, 2025.

This American Airlines deal was found by Cheapflights users on 8/17. 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.
Sat 9/139:56 amSTL - MKE
1 stop6h 07mAmerican Airlines
Sat 9/203:00 pmMKE - STL
1 stop5h 15mAmerican Airlines
Deal found 8/17$159
This American Airlines deal was found by Cheapflights users on 8/17. 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.
Wed 9/109:04 amORD - MKE
Nonstop1h 00mAmerican Airlines
Wed 9/1710:34 amMKE - ORD
Nonstop1h 06mAmerican Airlines
Deal found 8/17$179
This American Airlines deal was found by Cheapflights users on 8/18. 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 10/21:03 pmORD - MKE
Nonstop0h 54mAmerican Airlines
Thu 10/98:16 pmMKE - ORD
Nonstop1h 14mAmerican Airlines
Deal found 8/18$181
This American Airlines deal was found by Cheapflights users on 8/17. 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.
Fri 9/56:56 pmORD - MKE
Nonstop1h 04mAmerican Airlines
Sun 9/75:05 amMKE - ORD
Nonstop1h 02mAmerican Airlines
Deal found 8/17$184
This American Airlines deal was found by Cheapflights users on 8/16. 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.
Sat 9/63:14 pmORD - MKE
Nonstop0h 50mAmerican Airlines
Sun 9/76:18 amMKE - ORD
Nonstop1h 06mAmerican Airlines
Deal found 8/16$186
This American Airlines deal was found by Cheapflights users on 8/18. 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.
Tue 9/26:55 pmORD - MKE
Nonstop1h 05mAmerican Airlines
Sat 9/611:33 amMKE - ORD
Nonstop1h 06mAmerican Airlines
Deal found 8/18$189
This American Airlines deal was found by Cheapflights users on 8/18. 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.
Fri 8/2911:40 amORD - MKE
Nonstop0h 56mAmerican Airlines
Sun 8/314:56 pmMKE - ORD
Nonstop1h 04mAmerican Airlines
Deal found 8/18$199
This American Airlines deal was found by Cheapflights users on 8/17. 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.
Fri 9/196:29 amSTL - MKE
1 stop7h 15mAmerican Airlines
Sat 9/203:00 pmMKE - STL
1 stop5h 15mAmerican Airlines
Deal found 8/17$211
This American Airlines deal was found by Cheapflights users on 8/18. 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.
Fri 10/36:10 amSTL - MKE
1 stop3h 54mAmerican Airlines
Tue 10/710:49 amMKE - STL
1 stop5h 15mAmerican Airlines
Deal found 8/18$212
This Southwest deal was found by Cheapflights users on 8/18. 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 9/169:00 amMDW - MKE
1 stop5h 00mSouthwest
Tue 9/2310:00 amMKE - MDW
1 stop4h 00mSouthwest
Deal found 8/18$217
This United Airlines deal was found by Cheapflights users on 8/18. 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 10/25:00 amSTL - MKE
1 stop6h 26mUnited Airlines
Thu 10/96:00 amMKE - STL
1 stop4h 49mUnited Airlines
Deal found 8/18$219
This American Airlines deal was found by Cheapflights users on 8/17. 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.
Sun 10/199:27 amORD - MKE
Nonstop1h 06mAmerican Airlines
Thu 12/187:45 amMKE - ORD
Nonstop1h 11mAmerican Airlines
Deal found 8/17$224

Cheapflights Fare Finder

 
Customize your flight search to find flights from Illinois to Milwaukee 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 August 18, 2025.
Use the filters below to find and compare flights from Illinois to Milwaukee that are best for you.

Fly from

Illinois

Fly to

Milwaukee

Route

Depart

Return

Price

St. LouisMilwaukee

STL - MKE

STLMKE

Lambert-St Louis

Tue 9/16

8:50 am-4:47 pm

1 stop7h 57m

Milwaukee-Mitchell

Tue 9/23

4:37 pm-8:32 pm

1 stop3h 55m

$159

St. LouisMilwaukee

STL - MKE

STLMKE

Lambert-St Louis

Sat 9/13

5:18 am-10:31 am

1 stop5h 13m

Milwaukee-Mitchell

Sat 9/20

3:00 pm-8:15 pm

1 stop5h 15m

$159

St. LouisMilwaukee

STL - MKE

STLMKE

Lambert-St Louis

Tue 10/28

4:33 pm-9:24 pm

1 stop4h 51m

Milwaukee-Mitchell

Wed 11/5

6:12 am-12:37 pm

1 stop6h 25m

$159

St. LouisMilwaukee

STL - MKE

STLMKE

Lambert-St Louis

Wed 9/17

7:23 am-1:20 pm

1 stop5h 57m

Milwaukee-Mitchell

Sat 9/27

4:38 pm-8:32 pm

1 stop3h 54m

$159

St. LouisMilwaukee

STL - MKE

STLMKE

Lambert-St Louis

Tue 9/9

6:10 am-10:04 am

1 stop3h 54m

Milwaukee-Mitchell

Thu 9/11

6:20 pm-11:53 pm

1 stop5h 33m

$159

St. LouisMilwaukee

STL - MKE

STLMKE

Lambert-St Louis

Wed 9/10

6:10 am-10:04 am

1 stop3h 54m

Milwaukee-Mitchell

Sat 9/13

10:34 am-3:24 pm

1 stop4h 50m

$159

ChicagoMilwaukee

ORD - MKE

ORDMKE

Chicago O'Hare Intl

Sat 9/27

3:13 pm-4:03 pm

Nonstop0h 50m

Milwaukee-Mitchell

Sat 10/4

4:38 pm-5:50 pm

Nonstop1h 12m

$179

ChicagoMilwaukee

ORD - MKE

ORDMKE

Chicago O'Hare Intl

Wed 9/10

9:04 am-10:04 am

Nonstop1h 00m

Milwaukee-Mitchell

Wed 9/17

10:34 am-11:40 am

Nonstop1h 06m

$179

ChicagoMilwaukee

ORD - MKE

ORDMKE

Chicago O'Hare Intl

Wed 10/1

12:33 pm-1:20 pm

Nonstop0h 47m

Milwaukee-Mitchell

Wed 10/15

2:18 pm-3:27 pm

Nonstop1h 09m

$179

ChicagoMilwaukee

ORD - MKE

ORDMKE

Chicago O'Hare Intl

Thu 10/9

12:53 pm-1:48 pm

Nonstop0h 55m

Milwaukee-Mitchell

Sun 10/12

5:26 am-6:30 am

Nonstop1h 04m

$179

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/17

Showing 1-10 of 50 results
1
2
3
...
5

Best time to book a flight from Illinois to Milwaukee

Have a flexible travel schedule? Discover the best time to fly to Milwaukee 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 Milwaukee

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

Currently, February is the cheapest month in which you can book a flight from Illinois to Milwaukee (average of $280). Flying from Illinois to Milwaukee 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 MKE?

Find hourly flight availability from Illinois to Milwaukee. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 18, 2025.

When flying from Illinois to Milwaukee, 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 Illinois to Milwaukee

Explore weekly flight availability from Illinois to Milwaukee. 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 August 18, 2025.

The most flights from USIL to MKE are scheduled on a Monday (52 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (13 on average).

Related info for your journey

Find useful and relevant information for your journey from Illinois to Milwaukee. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Milwaukee from Illinois?

    Milwaukee-Mitchell (MKE) is the airport you will fly into if you book a flight from Illinois to Milwaukee. It is only a 6.4 mi journey from Milwaukee-Mitchell (MKE) to Milwaukee’s city center.

  • How long is the flight from Illinois to Milwaukee?

    A quick flight from Illinois to Milwaukee can take about 4h 50m. American Airlines provides one of the quickest options available for as low as $217. The distance between Illinois and Milwaukee is about 80 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from Illinois to Milwaukee one-way?

    For one-way options, check prices for Frontier. According to our data, you can fly for as low as $78. Users have also found prices from $79 and $109 on American Airlines and Southwest, respectively.

  • What are the most popular routes from Illinois to Milwaukee?

    The most popular route from Illinois to Milwaukee is Lambert-St Louis - Milwaukee-Mitchell. You may also consider Chicago O'Hare Intl - Milwaukee-Mitchell or Chicago Midway - Milwaukee-Mitchell.

  • What are the most reliable airlines from Illinois to Milwaukee?

    The top 3 most reliable airlines when flying from Illinois to Milwaukee are Republic Airways (88%), United Airlines (67%) and Copa Airlines (66%).

  • What are the cheapest flights from Illinois to Milwaukee?

    While on average a flight from Illinois to Milwaukee is generally $331, our data shows the cheapest flight currently is $224. When looking at the most popular route, (Lambert-St Louis - Milwaukee-Mitchell), you can expect to pay $177 for that flight.

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

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

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

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

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

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

    Currently, February is the cheapest month in which you can book a flight from Illinois to Milwaukee (average of $280). Flying from Illinois to Milwaukee 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

Traveling to a place near Milwaukee?

Book flights to Milwaukee if you plan to visit one of these locations
Mequon
Oak Creek
Sheboygan
Wauwatosa

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 Milwaukee

See prices for flight routes from nearby airports that may be better suited for you.
Dallas/Fort Worth to O'Hare Intl flights
John F Kennedy Intl to O'Hare Intl flights
Newark to O'Hare Intl flights
LaGuardia to O'Hare Intl flights
Los Angeles to O'Hare Intl flights
San Francisco to O'Hare Intl flights
Seattle to O'Hare Intl flights
Dulles Intl to O'Hare Intl flights
Reagan-National to O'Hare Intl flights
Philadelphia to O'Hare Intl flights
Denver to O'Hare Intl flights
Charlotte to O'Hare Intl flights
Dallas/Fort Worth to Minneapolis flights
Baltimore to O'Hare Intl flights
Ontario to O'Hare Intl flights
Austin to O'Hare Intl flights
Boston to O'Hare Intl flights
Atlanta to O'Hare Intl flights
Santa Ana to O'Hare Intl flights
Orlando to O'Hare Intl flights
Dulles Intl to Minneapolis flights
Sky Harbor Intl to O'Hare Intl flights
John F Kennedy Intl to Minneapolis flights
Seattle to Minneapolis flights
Hobby to O'Hare Intl flights
Reagan-National to Minneapolis flights
LaGuardia to Minneapolis flights
Raleigh to O'Hare Intl flights
Newark to Minneapolis flights
Burbank to O'Hare Intl flights
Portland to O'Hare Intl flights
George Bush Intcntl to O'Hare Intl flights
San Diego to O'Hare Intl flights
Fort Lauderdale to O'Hare Intl flights
Love Field to O'Hare Intl flights
Minneapolis to O'Hare Intl flights
San Jose to O'Hare Intl flights
Baltimore to Minneapolis flights
San Francisco to Minneapolis flights
Cleveland to O'Hare Intl flights
Miami to O'Hare Intl flights
John F Kennedy Intl to Milwaukee flights
Los Angeles to Minneapolis flights
Charleston to O'Hare Intl flights
Nashville to O'Hare Intl flights
Hartford to O'Hare Intl flights
Tampa to O'Hare Intl flights
LaGuardia to Milwaukee flights
San Antonio to O'Hare Intl flights
Seattle to Milwaukee flights

Top airline flying from Illinois to Milwaukee

Discover the top airline that operate flights from Illinois to Milwaukee. 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 August 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$179Average$249FlexibilityNo 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.