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$79+ 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 8/4. Fares are subject to change and may not be available on all flights or dates of travel.
MKE — ORD
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
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 June 12, 2025.

Round-trip from

$157
(Southwest)

One-way from

$79
(Southwest)

Popular in

November

Cheapest in

March

Average price

$379

Good round-trip deal

$332 or less

Good one-way deal

$161 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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Average for round-trip flights in June 2025
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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 June 12, 2025.

This Southwest deal was found by Cheapflights users on 6/11. 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 8/45:25 amMKE - STL
Nonstop1h 15mSouthwest
Wed 8/68:50 pmSTL - MKE
Nonstop1h 15mSouthwest
Deal found 6/11$157
This American Airlines deal was found by Cheapflights users on 6/11. 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 8/256:15 pmORD - MKE
Nonstop1h 03mAmerican Airlines
Deal found 6/11$179
This United Airlines deal was found by Cheapflights users on 6/10. 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.
Tue 7/810:45 amMKE - ORD
Nonstop1h 05mUnited Airlines
Tue 7/156:10 pmORD - MKE
Nonstop1h 00mUnited Airlines
Deal found 6/10$211
This Mytrip deal was found by Cheapflights users on 6/9. 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.
Tue 7/87:03 pmMKE - STL
1 stop15h 26mSpirit Airlines
Thu 7/1010:47 amSTL - MKE
1 stop22h 03mSpirit Airlines
Deal found 6/9$213
This American Airlines deal was found by Cheapflights users on 6/11. 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 8/247:10 amMKE - STL
1 stop5h 01mAmerican Airlines
Tue 8/265:15 amSTL - MKE
1 stop5h 15mAmerican Airlines
Deal found 6/11$215
This Delta deal was found by Cheapflights users on 6/11. 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 7/96:20 amMKE - STL
1 stop4h 13mDelta
Wed 7/166:30 amSTL - MKE
1 stop5h 00mDelta
Deal found 6/11$239
This Mytrip deal was found by Cheapflights users on 6/10. 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.
Tue 7/87:03 pmMKE - ORD
1 stop25h 25mSpirit Airlines
Tue 7/153:18 pmORD - MKE
1 stop22h 38mSpirit Airlines
Deal found 6/10$246
This FlightHub deal was found by Cheapflights users on 6/12. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/277:56 pmMKE - STL
1 stop13h 16mMultiple Airlines
Sun 6/296:36 pmSTL - MKE
1 stop19h 29mMultiple Airlines
Deal found 6/12$315
This Alaska Airlines deal was found by Cheapflights users on 6/9. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/233:20 pmMKE - ORD
1 stop15h 43mAlaska Airlines
Tue 9/301:01 pmORD - MKE
1 stop10h 58mAlaska Airlines
Deal found 6/9$355
This United Airlines deal was found by Cheapflights users on 6/12. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/275:15 amMKE - STL
1 stop5h 25mUnited Airlines
Tue 7/15:00 amSTL - MKE
1 stop5h 02mUnited Airlines
Deal found 6/12$453
This Delta deal was found by Cheapflights users on 6/11. 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 6/133:09 pmMKE - EVV
1 stop6h 47mDelta
Tue 6/175:59 pmEVV - MKE
1 stop5h 58mDelta
Deal found 6/11$471
This Delta deal was found by Cheapflights users on 6/10. 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 7/166:20 amMKE - MDW
1 stop11h 19mDelta
Tue 7/229:24 amMDW - MKE
1 stop11h 55mDelta
Deal found 6/10$477

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 June 12, 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 8/4

5:25 am-6:40 am

Nonstop1h 15m

Lambert-St Louis

Wed 8/6

8:50 pm-10:05 pm

Nonstop1h 15m

$157

MilwaukeeChicago

MKE - ORD

MKEORD

Milwaukee-Mitchell

Thu 8/21

1:06 pm-2:10 pm

Nonstop1h 04m

Chicago O'Hare Intl

Mon 8/25

6:15 pm-7:18 pm

Nonstop1h 03m

$179

MilwaukeeChicago

MKE - ORD

MKEORD

Milwaukee-Mitchell

Fri 6/27

5:15 am-6:20 am

Nonstop1h 05m

Chicago O'Hare Intl

Tue 7/1

7:40 pm-8:45 pm

Nonstop1h 05m

$199

MilwaukeeSt. Louis

MKE - STL

MKESTL

Milwaukee-Mitchell

Tue 7/8

7:03 pm-10:29 am

1 stop15h 26m

Lambert-St Louis

Thu 7/10

10:47 am-8:50 am

1 stop22h 03m

$213

MilwaukeeSt. Louis

MKE - STL

MKESTL

Milwaukee-Mitchell

Sun 8/24

7:10 am-12:11 pm

1 stop5h 01m

Lambert-St Louis

Tue 8/26

5:15 am-10:30 am

1 stop5h 15m

$215

MilwaukeeSt. Louis

MKE - STL

MKESTL

Milwaukee-Mitchell

Wed 7/9

6:20 am-10:33 am

1 stop4h 13m

Lambert-St Louis

Wed 7/16

6:30 am-11:30 am

1 stop5h 00m

$239

MilwaukeeChicago

MKE - ORD

MKEORD

Milwaukee-Mitchell

Tue 7/8

7:03 pm-8:28 pm

1 stop25h 25m

Chicago O'Hare Intl

Tue 7/15

3:18 pm-1:56 pm

1 stop22h 38m

$246

MilwaukeeSt. Louis

MKE - STL

MKESTL

Milwaukee-Mitchell

Fri 6/27

7:56 pm-9:12 am

1 stop13h 16m

Lambert-St Louis

Sun 6/29

6:36 pm-2:05 pm

1 stop19h 29m

$315

MilwaukeeChicago

MKE - ORD

MKEORD

Milwaukee-Mitchell

Tue 9/23

3:20 pm-7:03 am

1 stop15h 43m

Chicago O'Hare Intl

Tue 9/30

1:01 pm-11:59 pm

1 stop10h 58m

$355

MilwaukeeSt. Louis

MKE - STL

MKESTL

Milwaukee-Mitchell

Fri 6/27

5:15 am-10:40 am

1 stop5h 25m

Lambert-St Louis

Tue 7/1

5:00 am-10:02 am

1 stop5h 02m

$453

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

Showing 1-10 of 23 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 June 12, 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 June 12, 2025.

The most flights from MKE to USIL are scheduled on a Wednesday (51 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (33 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 June 12, 2025.
Read reviews from past customers who have flown Alaska Airlines, Southwest and Delta from Milwaukee to Illinois. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Entertainment

7.1

Comfort

7.8

Food

7.1

Boarding

8.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Entertainment

7.1

Comfort

7.8

Food

7.1

Boarding

8.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Southwest
8.0
Very good
4,287 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Entertainment

7.1

Comfort

7.8

Food

7.1

Boarding

8.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,946 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Entertainment

7.1

Comfort

7.8

Food

7.1

Boarding

8.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,790 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Entertainment

7.1

Comfort

7.8

Food

7.1

Boarding

8.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Entertainment

7.1

Comfort

7.8

Food

7.1

Boarding

8.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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 $79. Users have also found prices from $88 and $92 on American Airlines 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 - Chicago Midway when deciding on the best route from Milwaukee to Illinois.

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

    Consider Envoy Air (100%), Avianca (85%) or Copa Airlines (85%) 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 $3,505, our data indicates the cheapest price to be $102. The most popular route (Milwaukee-Mitchell - Lambert-St Louis), is priced around $157.

  • 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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$179Average$278FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$229Average$309FlexibilityNo cancel feeOn-time69%

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