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$69+ Cheap flights from Milwaukee (MKE) 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 9/9. Fares are subject to change and may not be available on all flights or dates of travel.
MKE — ORD
Jul 8 — Jul 151
Tue 7/8
Tue 7/15
1 adult, Economy
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Cheap flight deals from Milwaukee to Illinois

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

Round-trip from

$137
(Southwest)

One-way from

$69
(Southwest)

Popular in

November

Cheapest in

March

Good round-trip deal

$371 or less

Good one-way deal

$178 or less
From Milwaukee-Mitchell to Illinois
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One-way flight from Milwaukee-Mitchell to Illinois
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Highest demand for flights based on searches. 5% potential increase in price ($18 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($18 potential savings vs. average RT price).
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Price to beat on a round-trip flight from Milwaukee-Mitchell to Illinois.
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Price to beat on a one-way flight from Milwaukee-Mitchell to Illinois.
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Find flight deals from Milwaukee to Illinois

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

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.
Mon 9/85:25 pmMKE - STL
Nonstop1h 20mSouthwest
Thu 9/118:20 pmSTL - MKE
Nonstop1h 15mSouthwest
Deal found 7/2$137
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.
Mon 9/85:46 pmMKE - STL
1 stop5h 04mAmerican Airlines
Thu 9/114:36 pmSTL - MKE
1 stop7h 33mAmerican Airlines
Deal found 7/3$159
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.
Sat 8/166:05 pmMKE - STL
1 stop3h 50mDelta
Sat 8/236:00 amSTL - MKE
1 stop4h 46mDelta
Deal found 7/3$167
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.
Thu 8/211:06 pmMKE - ORD
Nonstop1h 04mAmerican Airlines
Mon 8/256:55 pmORD - MKE
Nonstop1h 05mAmerican Airlines
Deal found 7/3$179
This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/256:00 amMKE - ORD
1 stop16h 22mSpirit Airlines
Tue 8/266:56 amORD - MKE
1 stop16h 10mSpirit Airlines
Deal found 7/1$213
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.
Mon 8/1110:45 amMKE - ORD
Nonstop1h 05mUnited Airlines
Sun 8/178:54 amORD - MKE
Nonstop1h 08mUnited Airlines
Deal found 7/1$284
This FlightHub 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/187:58 pmMKE - STL
1 stop13h 13mMultiple Airlines
Sun 7/2010:47 amSTL - MKE
1 stop22h 03mMultiple Airlines
Deal found 7/2$304
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.
Fri 7/253:14 pmMKE - EVV
1 stop6h 38mDelta
Sat 7/269:37 amEVV - MKE
1 stop7h 23mDelta
Deal found 7/2$327
This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/84:37 pmMKE - STL
2 stops22h 02mSpirit Airlines
Sun 8/105:26 pmSTL - MKE
2 stops22h 16mSpirit Airlines
Deal found 7/1$376
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/185:57 pmMKE - EVV
1 stop22h 48mAmerican Airlines
Tue 7/225:05 amEVV - MKE
2 stops12h 22mAmerican Airlines
Deal found 7/2$568

Cheapflights Fare Finder

Customize your flight search to find flights from Milwaukee 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 July 3, 2025.
Use the filters below to find and compare flights from Milwaukee to Illinois that are best for you.

Fly from

Milwaukee

Fly to

Illinois

Route

Depart

Return

Price

MilwaukeeSt. Louis

MKE - STL

MKESTL

Milwaukee-Mitchell

Mon 9/8

5:25 pm-6:45 pm

Nonstop1h 20m

Lambert-St Louis

Thu 9/11

8:20 pm-9:35 pm

Nonstop1h 15m

$137

MilwaukeeSt. Louis

MKE - STL

MKESTL

Milwaukee-Mitchell

Mon 9/8

5:46 pm-10:50 pm

1 stop5h 04m

Lambert-St Louis

Thu 9/11

4:36 pm-12:09 am

1 stop7h 33m

$159

MilwaukeeSt. Louis

MKE - STL

MKESTL

Milwaukee-Mitchell

Sat 8/16

6:05 pm-9:55 pm

1 stop3h 50m

Lambert-St Louis

Sat 8/23

6:00 am-10:46 am

1 stop4h 46m

$167

MilwaukeeChicago

MKE - ORD

MKEORD

Milwaukee-Mitchell

Thu 8/21

1:06 pm-2:10 pm

Nonstop1h 04m

Chicago O'Hare Intl

Mon 8/25

6:55 pm-8:00 pm

Nonstop1h 05m

$179

MilwaukeeChicago

MKE - ORD

MKEORD

Milwaukee-Mitchell

Mon 8/25

6:00 am-10:22 pm

1 stop16h 22m

Chicago O'Hare Intl

Tue 8/26

6:56 am-11:06 pm

1 stop16h 10m

$213

MilwaukeeChicago

MKE - ORD

MKEORD

Milwaukee-Mitchell

Mon 8/11

10:45 am-11:50 am

Nonstop1h 05m

Chicago O'Hare Intl

Sun 8/17

8:54 am-10:02 am

Nonstop1h 08m

$284

MilwaukeeSt. Louis

MKE - STL

MKESTL

Milwaukee-Mitchell

Fri 7/18

7:58 pm-9:11 am

1 stop13h 13m

Lambert-St Louis

Sun 7/20

10:47 am-8:50 am

1 stop22h 03m

$304

MilwaukeeEvansville

MKE - EVV

MKEEVV

Milwaukee-Mitchell

Fri 7/25

3:14 pm-9:52 pm

1 stop6h 38m

Evansville Dress Regional

Sat 7/26

9:37 am-5:00 pm

1 stop7h 23m

$327

MilwaukeeSt. Louis

MKE - STL

MKESTL

Milwaukee-Mitchell

Fri 8/8

4:37 pm-2:39 pm

2 stops22h 02m

Lambert-St Louis

Sun 8/10

5:26 pm-3:42 pm

2 stops22h 16m

$376

MilwaukeeEvansville

MKE - EVV

MKEEVV

Milwaukee-Mitchell

Fri 7/18

5:57 pm-4:45 pm

1 stop22h 48m

Evansville Dress Regional

Tue 7/22

5:05 am-5:27 pm

2 stops12h 22m

$568

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/3

Showing 1-10 of 21 results
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Best time to book a flight from Milwaukee to Illinois

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

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

Currently, August is the cheapest month in which you can book a flight from Milwaukee to Illinois (average of $245). Flying from Milwaukee 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 MKE to IL?

Find hourly flight availability from Milwaukee 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 July 3, 2025.

When flying from Milwaukee 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 Milwaukee to Illinois

Explore weekly flight availability from Milwaukee 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 July 3, 2025.

The most flights from MKE to USIL are scheduled on a Tuesday (44 on average). You will have fewer flight options on Friday, which is when the least amount of flights are scheduled (23 on average).

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 July 3, 2025.
Read reviews from past customers who have flown Southwest, Delta, and United Airlines from Milwaukee to Illinois. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,266 reviews

Comfort

8.0

Food

7.0

Overall

8.0

Crew

8.6

Entertainment

7.6

Boarding

8.2

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.
Southwest
8.0
Very good
4,266 reviews
Southwest
8.0
Very good
4,266 reviews

Comfort

8.0

Food

7.0

Overall

8.0

Crew

8.6

Entertainment

7.6

Boarding

8.2

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.
Delta
8.0
Very good
7,982 reviews
Southwest
8.0
Very good
4,266 reviews

Comfort

8.0

Food

7.0

Overall

8.0

Crew

8.6

Entertainment

7.6

Boarding

8.2

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.
United Airlines
7.4
Good
8,861 reviews
Southwest
8.0
Very good
4,266 reviews

Comfort

8.0

Food

7.0

Overall

8.0

Crew

8.6

Entertainment

7.6

Boarding

8.2

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.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,266 reviews

Comfort

8.0

Food

7.0

Overall

8.0

Crew

8.6

Entertainment

7.6

Boarding

8.2

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.
Spirit Airlines
6.3
Okay
8,086 reviews
Southwest
8.0
Very good
4,266 reviews

Comfort

8.0

Food

7.0

Overall

8.0

Crew

8.6

Entertainment

7.6

Boarding

8.2

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 Milwaukee to Illinois. 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 from for flights from Milwaukee to Illinois?

    Milwaukee-Mitchell (MKE), located 6.4 mi from the city center, is the airport you fly out of when you book flights from Milwaukee to Illinois.

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

    For one-way options, check prices for Southwest. According to our data, you can fly for as low as $69. Users have also found prices from $114 and $115 on Frontier and Delta, respectively.

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

    Most travelers choose Milwaukee-Mitchell - Lambert-St Louis, Milwaukee-Mitchell - Chicago O'Hare Intl or Milwaukee-Mitchell - Evansville Dress Regional when deciding on the best route from Milwaukee to Illinois.

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

    Consider Avianca (82%), Copa Airlines (81%) or United Airlines (80%) when booking your flight. These represent the most reliable airlines when flying from Milwaukee to Illinois.

  • What are the cheapest flights from Milwaukee to Illinois?

    Looking for the cheapest flight from Milwaukee to Illinois? While on average our users pay $3,770, our data indicates the cheapest price to be $124. The most popular route (Milwaukee-Mitchell - Lambert-St Louis), is priced around $137.

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

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

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

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

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

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

    Currently, August is the cheapest month in which you can book a flight from Milwaukee to Illinois (average of $245). Flying from Milwaukee 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 Milwaukee to Illinois

See prices for flight routes from nearby airports that may be better suited for you.
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Top 2 airlines flying from Milwaukee to Illinois

Discover the top 2 airlines that operate flights from Milwaukee 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 July 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$179Average$278FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$229Average$309FlexibilityNo cancel feeOn-time69%

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