What is the cheapest airline that flies from Illinois to Wisconsin?

Southwest, United Airlines, and Delta are the most popular carriers operating from Illinois to Wisconsin

How many flights depart from Illinois to Wisconsin on average per week?

As of April 2026, 2,330 flights take off from Illinois and land in Wisconsin each week. The most common flight departure day for this route is Fri, with 17% of weekly flights taking off on this day.

How many flights depart from Illinois to Wisconsin on average per day?

As of April 2026, there are 332 flights per day flying from Illinois to Wisconsin. The most common time of day flights depart is 8:00PM, with 44% of flights taking off in the evening.

When did momondo last update prices for flights from Illinois to Wisconsin?

Prices for flights from Illinois to Wisconsin were last updated today.

How many operators does momondo search for flights from Illinois to Wisconsin?

As of April 2026, there are 7 operators available to choose from for flights from Illinois to Wisconsin.

How old do you have to be to fly from Illinois to Wisconsin?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Illinois to Wisconsin.

What documentation or ID do you need to fly to Wisconsin?

The travel and health documents you'll need for your trip to Wisconsin may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Wisconsin. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$49 Cheap Flights from Illinois to Wisconsin in 2026

1 adult

0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Illinois to Wisconsin

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

8:25 am - 10:00 am

STL

MSP

1h 35mnonstop

4:30 pm - 6:00 pm

MSP

STL

1h 30mnonstop

$97Southwest

mar., may. 5 - mar., may. 12

5:35 am - 9:25 am

STL

MSP

3h 50m

1 stop

7:50 am - 9:20 am

MSP

STL

1h 30mnonstop

$107Southwest

mar., may. 26 - mar., jun. 2

8:06 pm - 9:50 pm

ORD

MSP

1h 44mnonstop

10:55 am - 12:31 pm

MSP

ORD

1h 36mnonstop

$115Sun Country Air

jue., may. 7 - mar., may. 12

8:53 am - 10:30 am

STL

MSP

1h 37mnonstop

8:55 am - 10:32 am

MSP

STL

1h 37mnonstop

$117Delta

mar., may. 19 - mar., may. 26

12:30 pm - 2:08 pm

ORD

MSP

1h 38mnonstop

5:38 pm - 7:20 pm

MSP

ORD

1h 42mnonstop

$117Delta

mar., may. 12 - mar., may. 19

8:06 pm - 9:50 pm

ORD

MSP

1h 44mnonstop

5:30 pm - 7:06 pm

MSP

ORD

1h 36mnonstop

$120Sun Country Air

lun., may. 18 - lun., jun. 1

5:21 pm - 10:21 pm

STL

MSP

5h 00m

1 stop

6:05 pm - 11:56 pm

MSP

STL

5h 51m

1 stop

$159American Airlines

mar., may. 5 - mar., may. 12

8:57 pm - 10:03 pm

ORD

MKE

1h 06mnonstop

10:20 am - 11:29 am

MKE

ORD

1h 09mnonstop

$181United Airlines

mar., may. 12 - mar., may. 19

4:05 pm - 5:07 pm

ORD

MKE

1h 02mnonstop

5:37 pm - 6:58 pm

MKE

ORD

1h 21mnonstop

$201American Airlines

jue., may. 7 - lun., may. 11

6:40 pm - 7:51 pm

ORD

MKE

1h 11mnonstop

5:29 pm - 6:40 pm

MKE

ORD

1h 11mnonstop

$210United Airlines

lun., jun. 1 - vie., jun. 5

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United Airlines flights from Illinois to Wisconsin

Our best United Airlines deals on Illinois to Wisconsin flight tickets

United Airlines

May 12

ORD8:57 pmChicago O'Hare Intl

1h 06m

MKE10:03 pmMilwaukee-Mitchell

May 19

MKE10:20 amMilwaukee-Mitchell

1h 09m

ORD11:29 amChicago O'Hare Intl

$181

United Airlines

May 16

STL7:45 amLambert-St Louis

1h 27m

ORD9:12 amChicago O'Hare Intl

Jun 1

ORD7:45 pmChicago O'Hare Intl

1h 31m

STL9:16 pmLambert-St Louis

$191

United Airlines

Jun 1

ORD6:40 pmChicago O'Hare Intl

1h 11m

MKE7:51 pmMilwaukee-Mitchell

Jun 5

MKE5:29 pmMilwaukee-Mitchell

1h 11m

ORD6:40 pmChicago O'Hare Intl

$210

Delta flights from Illinois to Wisconsin

Our best Delta deals on Illinois to Wisconsin flight tickets

Delta

May 12

ORD12:30 pmChicago O'Hare Intl

1h 38m

MSP2:08 pmMinneapolis St Paul

May 19

MSP5:38 pmMinneapolis St Paul

1h 42m

ORD7:20 pmChicago O'Hare Intl

$117

Delta

May 14

ORD8:42 amChicago O'Hare Intl

1h 36m

MSP10:18 amMinneapolis St Paul

May 20

MSP7:45 pmMinneapolis St Paul

1h 35m

ORD9:20 pmChicago O'Hare Intl

$147

Delta

Aug 22

STL6:30 amLambert-St Louis

6h 09m

2 stops

ORD12:39 pmChicago O'Hare Intl

Sep 3

ORD8:55 amChicago O'Hare Intl

4h 22m

1 stop

STL1:17 pmLambert-St Louis

$172

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

St. LouisMinneapolis

STL - MSP

STLMSP

Lambert-St Louis

mar. 5/5

8:25 am-10:00 am

Nonstop1h 35m

Minneapolis St Paul

mar. 5/12

4:30 pm-6:00 pm

Nonstop1h 30m

$97

St. LouisMinneapolis

STL - MSP

STLMSP

Lambert-St Louis

mar. 5/26

5:35 am-9:25 am

1 stop3h 50m

Minneapolis St Paul

mar. 6/2

7:50 am-9:20 am

Nonstop1h 30m

$107

ChicagoMinneapolis

ORD - MSP

ORDMSP

Chicago O'Hare Intl

jue. 5/7

8:06 pm-9:50 pm

Nonstop1h 44m

Minneapolis St Paul

mar. 5/12

10:55 am-12:31 pm

Nonstop1h 36m

$115

St. LouisMinneapolis

STL - MSP

STLMSP

Lambert-St Louis

mar. 5/19

8:53 am-10:30 am

Nonstop1h 37m

Minneapolis St Paul

mar. 5/26

8:55 am-10:32 am

Nonstop1h 37m

$117

ChicagoMinneapolis

ORD - MSP

ORDMSP

Chicago O'Hare Intl

mar. 5/12

12:30 pm-2:08 pm

Nonstop1h 38m

Minneapolis St Paul

mar. 5/19

5:38 pm-7:20 pm

Nonstop1h 42m

$117

ChicagoMinneapolis

ORD - MSP

ORDMSP

Chicago O'Hare Intl

lun. 5/18

8:06 pm-9:50 pm

Nonstop1h 44m

Minneapolis St Paul

lun. 6/1

5:30 pm-7:06 pm

Nonstop1h 36m

$120

St. LouisMinneapolis

STL - MSP

STLMSP

Lambert-St Louis

mar. 5/5

5:21 pm-10:21 pm

1 stop5h 00m

Minneapolis St Paul

mar. 5/12

6:05 pm-11:56 pm

1 stop5h 51m

$159

Quickest round-trip

ChicagoMilwaukee

ORD - MKE

ORDMKE

Chicago O'Hare Intl

mar. 5/12

8:57 pm-10:03 pm

Nonstop1h 06m

Milwaukee-Mitchell

mar. 5/19

10:20 am-11:29 am

Nonstop1h 09m

$181

ChicagoMilwaukee

ORD - MKE

ORDMKE

Chicago O'Hare Intl

jue. 5/7

4:05 pm-5:07 pm

Nonstop1h 02m

Milwaukee-Mitchell

lun. 5/11

5:37 pm-6:58 pm

Nonstop1h 21m

$201

ChicagoMilwaukee

ORD - MKE

ORDMKE

Chicago O'Hare Intl

lun. 6/1

6:40 pm-7:51 pm

Nonstop1h 11m

Milwaukee-Mitchell

vie. 6/5

5:29 pm-6:40 pm

Nonstop1h 11m

$210

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Illinois to Wisconsin

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

Prices

Airlines

Other information

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

The cheapest day to depart from Illinois to Wisconsin is on a Monday. Travelers who choose to depart for Wisconsin on a Monday will often find tickets for as low as $201. The most expensive day to fly to Wisconsin is Wednesday, with ticket prices averaging around $320.

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

Our most recent data shows that the best time of day to fly to Wisconsin is in the evening. Flights from Illinois to Wisconsin during this time can be as low as $179. Flights at noon are often more expensive with an average ticket price of $318.

What is the cheapest Illinois to Wisconsin flight route?

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

What cabin class options are available on Illinois to Wisconsin flights?

There are 4 cabin classes available to choose from on Illinois to Wisconsin 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 Wisconsin flights?

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

Cheap Illinois to Wisconsin flight deals and tips

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

Best Price Found	$131
Fastest flight time	0h 45m
Direct flights	Every day
Airports in Wisconsin	80 airports

The best one-way flight to Wisconsin from Illinois in the past 72 hours is $131. The best round-trip flight deal from Illinois to Wisconsin found on momondo in the last 72 hours is $181.

The fastest flight from Illinois to Wisconsin takes 0h 45m

Direct flights go from Illinois to Wisconsin every day.

There are 80 airports in Wisconsin. From Illinois there are direct flights to Milwaukee-Mitchell (MKE), Green Bay Austin-Straubel (GRB), Madison Truax Field (MSN).

Search flight deals

Frequently asked questions about flying from Illinois to Wisconsin

When did momondo last update prices for flights from Illinois to Wisconsin?
Prices for flights from Illinois to Wisconsin were last updated today.
How many operators does momondo search for flights from Illinois to Wisconsin?
As of April 2026, there are 7 operators available to choose from for flights from Illinois to Wisconsin.
How old do you have to be to fly from Illinois to Wisconsin?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Illinois to Wisconsin.
What documentation or ID do you need to fly to Wisconsin?
The travel and health documents you'll need for your trip to Wisconsin may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Wisconsin. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Illinois to Wisconsin?
Based on momondo bookings for flights between Illinois and Wisconsin, the leading plane model is Canadair (Bombardier) Regional Jet CRJ-550, making up 16.76% of the total bookings. Other popular models include Canadair (Bombardier) Regional Jet with 13.46%, Embraer 170 with 13.19%, and Embraer 175 (Enhanced Winglets) with 12.36%.

Best airlines flying from Illinois to Wisconsin

Compare and see reviews for airlines that fly from Illinois to Wisconsin with momondo

Airline	Rating	Free Cancellation	Price
American Airlines	PriceFrom $179	Free Cancellation	Rating 7.1 11,604 reviews		Search American Airlines flights
United Airlines	PriceFrom $179	Free Cancellation	Rating 7.4 9,605 reviews		Search United Airlines flights

Why use momondo?

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

Finding the right flight to Wisconsin from Illinois is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Wisconsin quick and easy, saving you time and money.

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

Yes. All flights to Wisconsin 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 Wisconsin?

momondo provides multiple filters to help you find the best flight to Wisconsin from Illinois. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

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