$59 Find Cheap Flights from Wisconsin to Illinois - Compare and Save

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Cheap Flights from Wisconsin to Illinois

Cheapest round-trip prices found by our users on KAYAK in the last 5 days
Sort by: Cheapest
Burlington
1h 25mNonstop
from $111per person
Chicago
0h 50mNonstop
from $117per person
St. Louis
1h 15mNonstop
from $117per person
Decatur
1h 10mNonstop
from $149per person
Paducah
1h 27mNonstop
from $194per person
Peoria
1h 08mNonstop
from $289per person
Moline
1h 07mNonstop
from $289per person
Bloomington
0h 57mNonstop
from $349per person
Explore the map
Useful Info

Good to know

Low season

January

Cheapest flight

$59
Best time to beat the crowds with an average 4% drop in price.
Most popular time to fly with an average 2% increase in price.
Flight from Minneapolis to Chicago Midway Airport

FAQs for booking flights from Wisconsin to Illinois

  • How does KAYAK find such low prices on flights from Wisconsin to Illinois?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Wisconsin to Illinois.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Wisconsin to Illinois?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Wisconsin to Illinois is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Wisconsin to Illinois?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Wisconsin to Illinois with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Wisconsin to Illinois?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Wisconsin to Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • Which airlines fly most frequently to Illinois?

    Wisconsin and Illinois are connected by different airlines. The airlines that fly that route the most regularly are United Airlines (360 flights per week), American Airlines (192 flights per week), and Air New Zealand (186 flights per week).

  • How many airports are there in Illinois?

    There are 12 airports in Illinois. The busiest airport is Chicago O'Hare Airport (ORD), with 93% of all flights arriving there.

  • Which is the cheapest airport to fly into in Illinois?

    Prices will differ depending on the departure airport, but generally, the cheapest airport to fly to in Illinois is Chicago Midway Airport (MDW), with an average flight price of $288.

  • What is the cheapest day to fly to Illinois?

    Based on KAYAK data, the cheapest day to fly to Illinois is Friday where round-trip tickets can be as cheap as $433. On the other hand, the most expensive day to fly is Sunday, where round-trip prices are $530 on average.

  • What is the cheapest time of day to fly to Illinois?

    The cheapest time of day to fly to Illinois is generally in the morning, when round-trip flights cost $441 on average. Morning departures are around 12% cheaper than evening flights, on average. The most expensive time of day to fly to Illinois is generally at night, which is peak travel time and where the average cost of a ticket is $797.

  • What is the cheapest flight to Illinois?

    The cheapest ticket to Illinois from Wisconsin found in the last 5 days was to Chicago O'Hare Intl Airport, at $236 round-trip. The most popular route is Appleton (ATW) to Chicago O'Hare Intl Airport (ORD) and the cheapest round-trip airline ticket found on this route in the last 5 days was $236.

  • What is the cheapest month to fly from Wisconsin to Illinois?

    The cheapest month for flights from Wisconsin to Illinois is December, when tickets cost $204 (return) on average. On the other hand, the most expensive months are July and August, when the average cost of round-trip tickets is $340 and $313 respectively.

  • How many cities have direct flights to Illinois?

    From Wisconsin, there are direct flights to Illinois from 7 cities. The city with the most direct flights is Milwaukee, with 540 direct flights each week.

  • How many direct flights to Illinois are there each day?

    There are around 202 direct flights from within Wisconsin to Illinois every day. Most flights (48%) depart in the morning.

  • How many direct flights to Illinois are there each week?

    Each week there are around 1,414 direct flights from within Wisconsin to Illinois. The most common day for departures is Sunday, with 16% of flights taking off on this day.

  • How long is the flight to Illinois?

    An average nonstop flight from Wisconsin to Illinois takes 4h 08m, covering a distance of 268 miles. The shortest route is Milwaukee (MKE) to Chicago Midway Airport (MDW) with an average flight time of 0h 50m.

  • How many long-haul flights are there to Illinois each week?

    There are not any long-haul (6-12 hour flight duration) or medium-haul (3-6 hour flight duration) flights to Illinois. Instead, there are 1,414 short-haul flights (up to 3 hour flight duration), with the most arriving from Milwaukee.

  • What are the most popular destinations in Illinois?

    Based on KAYAK flight searches, the most popular destination is Chicago (79% of total searches to Illinois). The next most popular destinations are St. Louis (18%) and Peoria (2%). Searches for flights to Evansville (1%), to Bloomington (0%) and to Springfield (0%) are also popular.

Reviews of the top airlines flying from Wisconsin to Illinois

 
Need help choosing which airline to fly with from Wisconsin to Illinois? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 10225 reviews
6.7Food
7.3Comfort
7.7Boarding
7.1Entertainment
8.1Crew
Airline reviews

Plane congestion resulted in a 1 hr wait from landing to arrival at the gate. This was in addition to also experiencing extreme delays on my incoming flight.

2.0 MediocreKristel, Sep 2026
Read more United Airlines reviews

Plane congestion resulted in a 1 hr wait from landing to arrival at the gate. This was in addition to also experiencing extreme delays on my incoming flight.

Very disappointing that on an international business class flight they would not give me access to the lounge in Boston. They said it was because it was a codeshare flight. International business class should include lounge access regardless of codeshare.

Crew was great. Seats are cramped and uncomfortable and I’m a small person.

Awful. Delay after delay. And then again on the tarmac.

Kept changing the takeoff time and the moved it up so arrived when boarding had already started. Then sat waiting to taxi in for a long time

Food was not Good Nuts came very wet & not tasting Good Main course I asked for Steak they got me Chicken because they don’t have more !!!!

The seats on the aircraft are like sitting in a rock. During the boarding process they recognize Active Duty Military, why don’t they recognize Retired Military. I’ve always preferred Delta, this flight confirmed why I still prefer Delta.

It was literally one of the worst travel experiences ever. My flight got delayed by over an hour and there was no communication of this from the gate staff. I realized it by checking the screen periodically. Once on board the flight attendants continued to serve alcohol to a man who was clearly already drunk and that was making a bunch of commotion. Never again will I fly United!

At least the delays were short. Business class, even in the new planes is very crowded now with crappy tray tables

Flight cancelled due to fog. No other flights available for 36 hours. Directed by United to book passage on another carrier, and submit receipts for reimbursement. Did that. United now states they will not reimburse. Currently out 2 grand.

Flight was 2 hr late but at least I was upgraded to first class

The flight was delay roughly 90 minutes. Once we arrived at O'Hare, we sat on the tarmac for another 90 minutes. I understand that O'Hare is under construction however they need to figure out a solution as every incoming flight I have been on has been delayed coming to a gate.

We were stuck with no gate upon landing for 90 minutes. Unacceptable.

Horrible. Flight was delayed for 4 hours first till 7pm. Then for one more hour. Then again and around 9pm we were finally boarded and waited for catering delivery for another hour. At 10pm we were not interested on food at all. Tired, sleepy we arrived after midnight. Insane.

I've never seen such poor lack of information at a gate station in 69 years. The flight from COS was to depart at 12:37pm. At boarding time, the gate agent in the microphone mumbled something completely unintelligible. I understood one word. "mechanical". Nothing else. Absolutely nothing else was reported for the next 1-1/2 hours. Past the time for departure, at 12:37pm, the gate agent simply walked away and the station was left unattended, as all of the passengers waited expectantly. The board still said that the flight was ON TIME. That was hard to believe since it was then well past 12:37pm and we all were sitting at the gate and there was absolutely no gate agent anywhere in site. I stopped an employee who was standing somewhere else and said that we can use some information. Much later, the same gate agent said that he will have information for us about 5 minutes but he "doesn't know any more than you do." Of course, five minutes came and went and he did absolutely nothing. One and a half hours after 12:37pm, he opened the door and began boarding. No explanation, no apology. Once we were boarded, the same happened on the plane. We sat. No explanation, no apology, from any flight attendants. Finally, finally, a pilot apologized and explained that there would be a delay. WELL NO KIDDING !

Our flight from Chicago to Des Moines was the problem flight due to a dismissive flight attendant. His conduct was unnecessary and unprofessional.. I will avoid using Americam Airlines again because of the situation. Very disappointing.

Mostly excellent. However, many too many gate changes. Connecting flight at ORD changed gate 6 times.

The flight could have actually taken place. Canceled flight and no option to rebook that day.

Seating was horrible. Small seats. Access to flight information and extras very iser unfriendly. Kept losing internet after paying for it. Staff in madison was as unprofessional and unhelpful.

We were told we had no flights before our flight was continually delayed then cancelled.

More options for your flight to Illinois

Complete your trip to Illinois with a hotel stay or car rental