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$85+ 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 4/18. Fares are subject to change and may not be available on all flights or dates of travel.
MKE — ORD
Feb 27 — Mar 61
Thu 2/27
Thu 3/6
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 February 22, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$160
(Booking.com)

One-way from

$85
(Frontier)

Good round-trip deal

$388 or less

Good one-way deal

$198 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 Milwaukee-Mitchell to Illinois
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One-way flight from Milwaukee-Mitchell to Illinois
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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 February 22, 2025.

This Booking.com deal was found by Cheapflights users on 2/20. 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.
Thu 4/310:32 amMKE - STL
1 stop22h 34mFrontier
Sat 4/56:51 pmSTL - MKE
1 stop14h 36mFrontier
Deal found 2/20$160
This Delta deal was found by Cheapflights users on 2/22. 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 3/156:43 amMKE - STL
1 stop4h 11mDelta
Sat 3/225:00 pmSTL - MKE
1 stop4h 51mDelta
Deal found 2/22$177
This Mytrip deal was found by Cheapflights users on 2/20. 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 4/74:05 pmMKE - ORD
1 stop17h 40mSpirit Airlines
Mon 4/148:45 amORD - MKE
3 stops26h 52mSpirit Airlines
Deal found 2/20$200
This United Airlines deal was found by Cheapflights users on 2/21. 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.
Sat 4/58:20 amMKE - ORD
Nonstop1h 08mUnited Airlines
Sat 4/127:35 pmORD - MKE
Nonstop1h 02mUnited Airlines
Deal found 2/21$231
This United Airlines deal was found by Cheapflights users on 2/21. 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.
Sat 3/82:15 pmMKE - STL
1 stop5h 35mUnited Airlines
Wed 3/123:30 pmSTL - MKE
1 stop3h 29mUnited Airlines
Deal found 2/21$237
This American Airlines deal was found by Cheapflights users on 2/21. 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 4/46:25 amMKE - STL
1 stop4h 59mAmerican Airlines
Sun 4/65:45 amSTL - MKE
1 stop3h 39mAmerican Airlines
Deal found 2/21$243
This American Airlines deal was found by Cheapflights users on 2/22. 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 3/204:50 pmMKE - ORD
Nonstop1h 00mAmerican Airlines
Tue 3/2510:11 amORD - MKE
Nonstop0h 47mAmerican Airlines
Deal found 2/22$264
This Southwest deal was found by Cheapflights users on 2/20. 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 4/38:35 pmMKE - STL
Nonstop1h 20mSouthwest
Sat 4/56:00 amSTL - MKE
1 stop7h 10mSouthwest
Deal found 2/20$280
This Mytrip deal was found by Cheapflights users on 2/21. 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.
Thu 4/172:25 pmMKE - ORD
1 stop17h 39mMultiple Airlines
Tue 4/2211:53 amORD - MKE
2 stops31h 00mMultiple Airlines
Deal found 2/21$314
This Mytrip deal was found by Cheapflights users on 2/21. 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.
Thu 4/245:00 pmMKE - STL
3 stops23h 45mMultiple Airlines
Sun 4/276:11 pmSTL - MKE
2 stops21h 35mMultiple Airlines
Deal found 2/21$365
This Delta deal was found by Cheapflights users on 2/20. 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 3/1310:18 amMKE - EVV
1 stop6h 31mDelta
Sun 3/165:29 pmEVV - MKE
1 stop4h 06mDelta
Deal found 2/20$419
This American Airlines deal was found by Cheapflights users on 2/20. 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 3/1311:35 amMKE - EVV
2 stops11h 12mAmerican Airlines
Sun 3/1610:45 amEVV - MKE
1 stop6h 50mAmerican Airlines
Deal found 2/20$493

Find flights from Milwaukee to Illinois within your budget

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 February 22, 2025.

Fly from

Milwaukee

Fly to

Illinois

Route

Depart

Return

Price

MilwaukeeSt. Louis

MKE - STL

MKESTL

Milwaukee-Mitchell

Thu 4/3

10:32 am-9:06 am

1 stop22h 34m

Lambert-St Louis

Sat 4/5

6:51 pm-9:27 am

1 stop14h 36m

$160

MilwaukeeSt. Louis

MKE - STL

MKESTL

Milwaukee-Mitchell

Sat 3/15

6:43 am-10:54 am

1 stop4h 11m

Lambert-St Louis

Sat 3/22

5:00 pm-9:51 pm

1 stop4h 51m

$177

MilwaukeeChicago

MKE - ORD

MKEORD

Milwaukee-Mitchell

Mon 4/7

4:05 pm-9:45 am

1 stop17h 40m

Chicago O'Hare Intl

Mon 4/14

8:45 am-11:37 am

3 stops26h 52m

$200

MilwaukeeChicago

MKE - ORD

MKEORD

Milwaukee-Mitchell

Sat 4/5

8:20 am-9:28 am

Nonstop1h 08m

Chicago O'Hare Intl

Sat 4/12

7:35 pm-8:37 pm

Nonstop1h 02m

$231

MilwaukeeSt. Louis

MKE - STL

MKESTL

Milwaukee-Mitchell

Sat 3/8

2:15 pm-7:50 pm

1 stop5h 35m

Lambert-St Louis

Wed 3/12

3:30 pm-6:59 pm

1 stop3h 29m

$237

MilwaukeeSt. Louis

MKE - STL

MKESTL

Milwaukee-Mitchell

Fri 4/4

6:25 am-11:24 am

1 stop4h 59m

Lambert-St Louis

Sun 4/6

5:45 am-9:24 am

1 stop3h 39m

$243

MilwaukeeChicago

MKE - ORD

MKEORD

Milwaukee-Mitchell

Thu 3/20

4:50 pm-5:50 pm

Nonstop1h 00m

Chicago O'Hare Intl

Tue 3/25

10:11 am-10:58 am

Nonstop0h 47m

$264

MilwaukeeSt. Louis

MKE - STL

MKESTL

Milwaukee-Mitchell

Thu 4/3

8:35 pm-9:55 pm

Nonstop1h 20m

Lambert-St Louis

Sat 4/5

6:00 am-1:10 pm

1 stop7h 10m

$280

MilwaukeeChicago

MKE - ORD

MKEORD

Milwaukee-Mitchell

Thu 4/17

2:25 pm-8:04 am

1 stop17h 39m

Chicago O'Hare Intl

Tue 4/22

11:53 am-6:53 pm

2 stops31h 00m

$314

MilwaukeeSt. Louis

MKE - STL

MKESTL

Milwaukee-Mitchell

Thu 4/24

5:00 pm-4:45 pm

3 stops23h 45m

Lambert-St Louis

Sun 4/27

6:11 pm-3:46 pm

2 stops21h 35m

$365

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/21

Showing 1-10 of 24 results
1
2
3

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.

Travel insights for flights from Milwaukee to Illinois

Get recent, data-driven insights about flights from Milwaukee to Illinois including ideal travel times, pricing trends, and more.

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 February 22, 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 February 22, 2025.

The most flights from MKE to USIL are scheduled on a Tuesday (45 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (41 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 February 22, 2025.
Read reviews from past customers who have flown Southwest, Delta and United Airlines from Milwaukee to Illinois. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,395 reviews

Entertainment

7.6

Crew

8.7

Comfort

8.1

Overall

8.1

Boarding

8.2

Food

7.1

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Southwest
8.1
Very good
4,395 reviews
Southwest
8.1
Very good
4,395 reviews

Entertainment

7.6

Crew

8.7

Comfort

8.1

Overall

8.1

Boarding

8.2

Food

7.1

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Delta
8.0
Very good
8,212 reviews
Southwest
8.1
Very good
4,395 reviews

Entertainment

7.6

Crew

8.7

Comfort

8.1

Overall

8.1

Boarding

8.2

Food

7.1

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

United Airlines
7.4
Good
8,759 reviews
Southwest
8.1
Very good
4,395 reviews

Entertainment

7.6

Crew

8.7

Comfort

8.1

Overall

8.1

Boarding

8.2

Food

7.1

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

American Airlines
7.2
Good
10,000 reviews
Southwest
8.1
Very good
4,395 reviews

Entertainment

7.6

Crew

8.7

Comfort

8.1

Overall

8.1

Boarding

8.2

Food

7.1

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Spirit Airlines
6.3
Okay
8,012 reviews
Southwest
8.1
Very good
4,395 reviews

Entertainment

7.6

Crew

8.7

Comfort

8.1

Overall

8.1

Boarding

8.2

Food

7.1

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

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 Frontier. According to our data, you can fly for as low as $85. Users have also found prices from $89 and $95 on Delta and Spirit Airlines, 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 Republic Airways (95%), Qatar Airways (87%) or Avianca (86%) 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 $1,029, our data indicates the cheapest price to be $153. The most popular route (Milwaukee-Mitchell - Lambert-St Louis), is priced around $174.

  • 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.

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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 February 22, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$179Average$278FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$229Average$298FlexibilityNo cancel feeOn-time69%
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