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Cheap flights from Illinois to Milwaukee from $78

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Illinois to Milwaukee departing on 9/15. 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 Illinois to Milwaukee

Cheap round-trip flights

American Airlines Logo
9:56 am - 4:03 pmSTL-MKE
6h 07m1 stop
American Airlines Logo
3:00 pm - 8:15 pmMKE-STL
5h 15m1 stop
$159American Airlines
Find Deal
Sat, Sep 13 - Sat, Sep 20
American Airlines Logo
9:04 am - 10:04 amORD-MKE
1h 00mnonstop
American Airlines Logo
10:34 am - 11:40 amMKE-ORD
1h 06mnonstop
$179American Airlines
Find Deal
Wed, Sep 10 - Wed, Sep 17
Southwest Logo
9:00 am - 2:00 pmMDW-MKE
5h 00m1 stop
Southwest Logo
10:00 am - 2:00 pmMKE-MDW
4h 00m1 stop
$217Southwest
Find Deal
Tue, Sep 16 - Tue, Sep 23
United Airlines Logo
5:00 am - 11:26 amSTL-MKE
6h 26m1 stop
United Airlines Logo
6:00 am - 10:49 amMKE-STL
4h 49m1 stop
$219United Airlines
Find Deal
Thu, Oct 2 - Thu, Oct 9
Frontier Logo
6:00 am - 2:14 pmORD-MKE
8h 14m1 stop
Frontier Logo
3:03 pm - 11:59 pmMKE-ORD
8h 56m1 stop
$225Frontier
Find Deal
Sun, Sep 14 - Sun, Sep 21
Southwest Logo
10:15 am - 11:30 amSTL-MKE
1h 15mnonstop
Southwest Logo
6:15 am - 7:30 amMKE-STL
1h 15mnonstop
$237Southwest
Find Deal
Tue, Sep 16 - Tue, Sep 23
United Airlines Logo
7:35 pm - 8:46 pmORD-MKE
1h 11mnonstop
United Airlines Logo
7:00 am - 8:10 amMKE-ORD
1h 10mnonstop
$240United Airlines
Find Deal
Fri, Sep 12 - Sun, Sep 14
Delta Logo
6:00 am - 10:30 amSTL-MKE
4h 30m1 stop
Delta Logo
5:30 pm - 11:23 pmMKE-STL
5h 53m1 stop
$247Delta
Find Deal
Tue, Sep 9 - Tue, Sep 9
Delta Logo
6:00 am - 10:30 amSTL-MKE
4h 30m1 stop
Delta Logo
5:49 pm - 11:09 pmMKE-STL
5h 20m1 stop
$250Delta
Find Deal
Wed, Sep 10 - Thu, Sep 11
Frontier Logo
6:00 am - 6:41 pmORD-MKE
12h 41m1 stop
Frontier Logo
3:03 pm - 11:59 pmMKE-ORD
8h 56m1 stop
$446Frontier
Find Deal
Fri, Sep 12 - Sun, Sep 14

United Airlines flights from Illinois to Milwaukee

Our best United Airlines deals on Illinois to Milwaukee flight tickets
United Airlines
Oct 2
STL5:00 amLambert-St Louis
6h 26m
1 stop
MKE11:26 amMilwaukee-Mitchell
Oct 9
MKE6:00 amMilwaukee-Mitchell
4h 49m
1 stop
STL10:49 amLambert-St Louis
$219
Find similar
United Airlines
Sep 12
ORD7:35 pmChicago O'Hare Intl
1h 11m
MKE8:46 pmMilwaukee-Mitchell
Sep 14
MKE7:00 amMilwaukee-Mitchell
1h 10m
ORD8:10 amChicago O'Hare Intl
$240
Find similar
United Airlines
Sep 25
ORD10:20 amChicago O'Hare Intl
1h 06m
MKE11:26 amMilwaukee-Mitchell
Sep 25
MKE7:15 pmMilwaukee-Mitchell
1h 10m
ORD8:25 pmChicago O'Hare Intl
$247
Find similar

American Airlines flights from Illinois to Milwaukee

Our best American Airlines deals on Illinois to Milwaukee flight tickets
American Airlines
Sep 13
STL9:56 amLambert-St Louis
6h 07m
1 stop
MKE4:03 pmMilwaukee-Mitchell
Sep 20
MKE3:00 pmMilwaukee-Mitchell
5h 15m
1 stop
STL8:15 pmLambert-St Louis
$159
Find similar
American Airlines
Sep 10
ORD9:04 amChicago O'Hare Intl
1h 00m
MKE10:04 amMilwaukee-Mitchell
Sep 17
MKE10:34 amMilwaukee-Mitchell
1h 06m
ORD11:40 amChicago O'Hare Intl
$179
Find similar
American Airlines
Oct 2
ORD1:03 pmChicago O'Hare Intl
0h 54m
MKE1:57 pmMilwaukee-Mitchell
Oct 9
MKE8:16 pmMilwaukee-Mitchell
1h 14m
ORD9:30 pmChicago O'Hare Intl
$181
Find similar

momondo 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, momondo users made 832,500 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

Fly to

Route

Depart

Return

Price

St. LouisMilwaukee

STL - MKE

STLMKE

Lambert-St Louis

Sat 9/13

9:56 am-4:03 pm

1 stop6h 07m

Milwaukee-Mitchell

Sat 9/20

3:00 pm-8:15 pm

1 stop5h 15m

$159

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

MDW - MKE

MDWMKE

Chicago Midway

Tue 9/16

9:00 am-2:00 pm

1 stop5h 00m

Milwaukee-Mitchell

Tue 9/23

10:00 am-2:00 pm

1 stop4h 00m

$217

St. LouisMilwaukee

STL - MKE

STLMKE

Lambert-St Louis

Thu 10/2

5:00 am-11:26 am

1 stop6h 26m

Milwaukee-Mitchell

Thu 10/9

6:00 am-10:49 am

1 stop4h 49m

$219

ChicagoMilwaukee

ORD - MKE

ORDMKE

Chicago O'Hare Intl

Sun 9/14

6:00 am-2:14 pm

1 stop8h 14m

Milwaukee-Mitchell

Sun 9/21

3:03 pm-11:59 pm

1 stop8h 56m

$225

St. LouisMilwaukee

STL - MKE

STLMKE

Lambert-St Louis

Tue 9/16

10:15 am-11:30 am

Nonstop1h 15m

Milwaukee-Mitchell

Tue 9/23

6:15 am-7:30 am

Nonstop1h 15m

$237

ChicagoMilwaukee

ORD - MKE

ORDMKE

Chicago O'Hare Intl

Fri 9/12

7:35 pm-8:46 pm

Nonstop1h 11m

Milwaukee-Mitchell

Sun 9/14

7:00 am-8:10 am

Nonstop1h 10m

$240

St. LouisMilwaukee

STL - MKE

STLMKE

Lambert-St Louis

Tue 9/9

6:00 am-10:30 am

1 stop4h 30m

Milwaukee-Mitchell

Tue 9/9

5:30 pm-11:23 pm

1 stop5h 53m

$247

St. LouisMilwaukee

STL - MKE

STLMKE

Lambert-St Louis

Wed 9/10

6:00 am-10:30 am

1 stop4h 30m

Milwaukee-Mitchell

Thu 9/11

5:49 pm-11:09 pm

1 stop5h 20m

$250

ChicagoMilwaukee

ORD - MKE

ORDMKE

Chicago O'Hare Intl

Fri 9/12

6:00 am-6:41 pm

1 stop12h 41m

Milwaukee-Mitchell

Sun 9/14

3:03 pm-11:59 pm

1 stop8h 56m

$446

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 Milwaukee from

How to get the cheapest flight ticket from Illinois to Milwaukee

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 Milwaukee?

According to our data, Wednesday is the cheapest day to fly to Milwaukee from Illinois. The lowest ticket price found for a Wednesday departure recently was $235. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. Flights from Illinois to Milwaukee on a Thursday will generally be more expensive and average around $371. 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 Milwaukee?

In the morning is the cheapest time of day to fly from Illinois to Milwaukee when you can find flight prices for as low as $239. Flying to Milwaukee in the morning is an ideal time because this is during off-peak travel hours. In the afternoon is when there is more demand to fly to Milwaukee, so prices are often more expensive at around $291 per ticket.

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

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

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

There are 3 cabin classes available to choose from on Illinois to Milwaukee-Mitchell flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Illinois to Milwaukee flights?

No. A direct flight is the cheapest option for a flight between Illinois to Milwaukee.

Cheap Illinois to Milwaukee flight deals and tips

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

Best Price Found

$78

Fastest flight time

0h 50m

Direct flights

Every day

Airports in Milwaukee

1 airport
The best one-way flight to Milwaukee from Illinois in the past 72 hours is $78. The best round-trip flight deal from Illinois to Milwaukee found on momondo in the last 72 hours is $159.
The fastest flight from Illinois to Milwaukee takes 0h 50m
Direct flights go from Illinois to Milwaukee every day.
There is 1 airport near Milwaukee: Milwaukee-Mitchell (MKE)
Search flight deals

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

    Prices for flights from Illinois to Milwaukee-Mitchell Airport are updated daily.

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

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

    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 Illinois to Milwaukee-Mitchell Airport.

  • What documentation or ID do you need to fly to Milwaukee-Mitchell Airport?

    The required travel and health documents for your Milwaukee-Mitchell Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Milwaukee-Mitchell Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

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

Best airlines flying from Illinois to Milwaukee

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

Traveling to a place near Milwaukee?

Book flights to Milwaukee if you plan to visit one of these locations
Sheboygan
Waukesha
Oak Creek
Mequon
Wauwatosa
Glendale
Kohler
Pewaukee
West Bend
Port Washington
Grafton
New Berlin

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Illinois to Milwaukee. momondo saves you time and could save you money on your trip.

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

Yes. All flights to Milwaukee from Illinois on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

Once all potential Illinois to Milwaukee 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 Illinois to Milwaukee right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Illinois to Milwaukee now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Milwaukee and let you know when they change.

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