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Cheap flights from Milwaukee to Illinois from $72

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Milwaukee to Illinois departing on 10/24. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Milwaukee to Illinois

Cheap round-trip flights

United Airlines Logo
10:50 am - 2:27 pmMKE-STL
3h 37m1 stop
United Airlines Logo
5:28 pm - 9:56 pmSTL-MKE
4h 28m1 stop
$159United Airlines
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Tue, Oct 14 - Tue, Oct 21
American Airlines Logo
3:49 pm - 11:07 pmMKE-STL
7h 18m1 stop
American Airlines Logo
1:20 pm - 9:35 pmSTL-MKE
8h 15m1 stop
$175American Airlines
Find Deal
Fri, Nov 14 - Mon, Nov 17
Delta Logo
6:59 pm - 11:07 pmMKE-STL
4h 08m1 stop
Delta Logo
6:00 am - 10:06 amSTL-MKE
4h 06m1 stop
$177Delta
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Sat, Oct 11 - Sat, Oct 18
American Airlines Logo
8:16 pm - 9:30 pmMKE-ORD
1h 14mnonstop
American Airlines Logo
12:53 pm - 1:48 pmORD-MKE
0h 55mnonstop
$179American Airlines
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Fri, Oct 10 - Sun, Oct 12
Delta Logo
9:39 am - 1:22 pmMKE-STL
3h 43m1 stop
Delta Logo
6:00 am - 10:06 amSTL-MKE
4h 06m1 stop
$184Delta
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Wed, Oct 15 - Sat, Oct 18
United Airlines Logo
5:00 am - 10:49 amMKE-STL
5h 49m1 stop
United Airlines Logo
5:00 am - 10:11 amSTL-MKE
5h 11m1 stop
$190United Airlines
Find Deal
Wed, Oct 15 - Thu, Oct 16
Southwest Logo
5:45 am - 9:55 amMKE-MDW
4h 10m1 stop
Southwest Logo
5:45 am - 11:30 amMDW-MKE
5h 45m1 stop
$219Southwest
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Tue, Oct 21 - Wed, Oct 22
Southwest Logo
5:45 am - 9:55 amMKE-MDW
4h 10m1 stop
Southwest Logo
10:55 am - 3:55 pmMDW-MKE
5h 00m1 stop
$228Southwest
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Tue, Oct 21 - Tue, Oct 21
Frontier Logo
8:04 pm - 9:07 amMKE-STL
13h 03m1 stop
Frontier Logo
10:17 am - 7:18 pmSTL-MKE
33h 01m2 stops
$230Frontier
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Mon, Oct 6 - Thu, Oct 16
Frontier Logo
8:04 pm - 9:07 amMKE-STL
13h 03m1 stop
Frontier Logo
7:45 pm - 7:19 pmSTL-MKE
23h 34m1 stop
$266Frontier
Find Deal
Fri, Oct 31 - Sun, Nov 2

American Airlines flights from Milwaukee to Illinois

Our best American Airlines deals on Milwaukee to Illinois flight tickets
American Airlines
Nov 14
MKE3:49 pmMilwaukee-Mitchell
7h 18m
1 stop
STL11:07 pmLambert-St Louis
Nov 17
STL1:20 pmLambert-St Louis
8h 15m
1 stop
MKE9:35 pmMilwaukee-Mitchell
$175
Find similar
American Airlines
Oct 10
MKE8:16 pmMilwaukee-Mitchell
1h 14m
ORD9:30 pmChicago O'Hare Intl
Oct 12
ORD12:53 pmChicago O'Hare Intl
0h 55m
MKE1:48 pmMilwaukee-Mitchell
$179
Find similar
American Airlines
Oct 9
MKE6:45 amMilwaukee-Mitchell
1h 06m
ORD7:51 amChicago O'Hare Intl
Oct 12
ORD9:27 amChicago O'Hare Intl
1h 06m
MKE10:33 amMilwaukee-Mitchell
$180
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Frontier flights from Milwaukee to Illinois

Our best Frontier deals on Milwaukee to Illinois flight tickets
Frontier
Oct 6
MKE8:04 pmMilwaukee-Mitchell
13h 03m
1 stop
STL9:07 amLambert-St Louis
Oct 16
STL10:17 amLambert-St Louis
33h 01m
2 stops
MKE7:18 pmMilwaukee-Mitchell
$230
Find similar
Frontier
Oct 31
MKE8:04 pmMilwaukee-Mitchell
13h 03m
1 stop
STL9:07 amLambert-St Louis
Nov 2
STL7:45 pmLambert-St Louis
23h 34m
1 stop
MKE7:19 pmMilwaukee-Mitchell
$266
Find similar
Frontier
Oct 6
MKE8:04 pmMilwaukee-Mitchell
13h 03m
1 stop
STL9:07 amLambert-St Louis
Oct 16
STL7:52 pmLambert-St Louis
23h 26m
1 stop
MKE7:18 pmMilwaukee-Mitchell
$269
Find similar

momondo 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, momondo users made 832,500 searches. Data last updated September 18, 2025.
Use the filters below to find and compare flights from Milwaukee to Illinois that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

MilwaukeeSt. Louis

MKE - STL

MKESTL

Milwaukee-Mitchell

Tue 10/14

10:50 am-2:27 pm

1 stop3h 37m

Lambert-St Louis

Tue 10/21

5:28 pm-9:56 pm

1 stop4h 28m

$159

MilwaukeeSt. Louis

MKE - STL

MKESTL

Milwaukee-Mitchell

Fri 11/14

3:49 pm-11:07 pm

1 stop7h 18m

Lambert-St Louis

Mon 11/17

1:20 pm-9:35 pm

1 stop8h 15m

$175

MilwaukeeSt. Louis

MKE - STL

MKESTL

Milwaukee-Mitchell

Sat 10/11

6:59 pm-11:07 pm

1 stop4h 08m

Lambert-St Louis

Sat 10/18

6:00 am-10:06 am

1 stop4h 06m

$177

MilwaukeeChicago

MKE - ORD

MKEORD

Milwaukee-Mitchell

Fri 10/10

8:16 pm-9:30 pm

Nonstop1h 14m

Chicago O'Hare Intl

Sun 10/12

12:53 pm-1:48 pm

Nonstop0h 55m

$179

MilwaukeeSt. Louis

MKE - STL

MKESTL

Milwaukee-Mitchell

Wed 10/15

9:39 am-1:22 pm

1 stop3h 43m

Lambert-St Louis

Sat 10/18

6:00 am-10:06 am

1 stop4h 06m

$184

MilwaukeeSt. Louis

MKE - STL

MKESTL

Milwaukee-Mitchell

Wed 10/15

5:00 am-10:49 am

1 stop5h 49m

Lambert-St Louis

Thu 10/16

5:00 am-10:11 am

1 stop5h 11m

$190

MilwaukeeChicago

MKE - MDW

MKEMDW

Milwaukee-Mitchell

Tue 10/21

5:45 am-9:55 am

1 stop4h 10m

Chicago Midway

Wed 10/22

5:45 am-11:30 am

1 stop5h 45m

$219

MilwaukeeChicago

MKE - MDW

MKEMDW

Milwaukee-Mitchell

Tue 10/21

5:45 am-9:55 am

1 stop4h 10m

Chicago Midway

Tue 10/21

10:55 am-3:55 pm

1 stop5h 00m

$228

MilwaukeeSt. Louis

MKE - STL

MKESTL

Milwaukee-Mitchell

Mon 10/6

8:04 pm-9:07 am

1 stop13h 03m

Lambert-St Louis

Thu 10/16

10:17 am-7:18 pm

2 stops33h 01m

$230

MilwaukeeSt. Louis

MKE - STL

MKESTL

Milwaukee-Mitchell

Fri 10/31

8:04 pm-9:07 am

1 stop13h 03m

Lambert-St Louis

Sun 11/2

7:45 pm-7:19 pm

1 stop23h 34m

$266

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Illinois from

How to get the cheapest flight ticket from Milwaukee to Illinois

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest day to depart on your flight to Illinois?

The cheapest day to depart from Milwaukee to Illinois is on a Friday when prices can be found for as low as $463. Flights from Milwaukee to Illinois on a Monday will generally be more expensive and average around $567. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Illinois?

Our most recent data shows that the best time of day to fly to Illinois is in the morning. Flights from Milwaukee to Illinois during this time can be as low as $482. Flights in the evening are often more expensive with an average ticket price of $717.

What is the cheapest Milwaukee-Mitchell to Illinois flight route?

Fly from Milwaukee-Mitchell to Chicago O'Hare Intl for the best Milwaukee-Mitchell - Illinois flight prices

What cabin class options are available on Milwaukee-Mitchell to Illinois flights?

There are 4 cabin classes available to choose from on Milwaukee-Mitchell to Illinois flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Cheap Milwaukee to Illinois flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Milwaukee to Illinois

Best Price Found

$164

Fastest flight time

0h 50m

Direct flights

Every day

Airports in Illinois

3 airports
The best one-way flight to Illinois from Milwaukee in the past 72 hours is $164. The best round-trip flight deal from Milwaukee to Illinois found on momondo in the last 72 hours is $319.
The fastest flight from Milwaukee to Illinois takes 0h 50m
Direct flights go from Milwaukee to Illinois every day.
There are 3 airports near Illinois: Chicago O'Hare Intl (ORD), Chicago Midway (MDW), Lambert-St Louis (STL)
Search flight deals

  • When did momondo last update prices for flights from Milwaukee-Mitchell Airport to Illinois?

    Prices for flights from Milwaukee-Mitchell Airport to Illinois are refreshed on a daily basis.

  • How many operators does momondo search for flights from Milwaukee-Mitchell Airport to Illinois?

  • How old do you have to be to fly from Milwaukee-Mitchell Airport to Illinois?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Milwaukee-Mitchell Airport to Illinois.

  • What documentation or ID do you need to fly to Illinois?

    The necessary travel and health documents for your Illinois trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Milwaukee to Illinois?

Best airlines flying from Milwaukee to Illinois

Compare and see reviews for airlines that fly from Milwaukee to Illinois with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $179Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
United AirlinesPriceFrom $229Free CancellationRating
7.4
8,926 reviews
Search United Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Milwaukee to Illinois?

It is quick and easy to find Milwaukee to Illinois flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Illinois that suits you.

Can I find flights from Milwaukee to Illinois with flexible booking policies on momondo?

All flight searches from Milwaukee to Illinois on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Milwaukee to Illinois?

Once all potential Milwaukee to Illinois flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Milwaukee to Illinois right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Illinois, momondo offers a useful price alert feature which will track prices for flights to Illinois from Milwaukee and alert you when they change.

An easier way to manage your Illinois trip

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