$49 Find Cheap Flights from Illinois to Wisconsin

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Low seasonJanuary
Cheapest flight$49
Best time to beat the crowds with an average 0% drop in price.
Most popular time to fly and prices are also 3% lower on average.
Flight from St. Louis to Chicago O'Hare Airport

FAQs for booking flights from Illinois to Wisconsin

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

    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 Illinois to Wisconsin.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Illinois to Wisconsin 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 Illinois to Wisconsin?

    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 Illinois to Wisconsin 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 Illinois to Wisconsin?

    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 Illinois to Wisconsin 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 Wisconsin?

    Illinois and Wisconsin are connected by different airlines. The airlines that fly that route the most regularly are United Airlines (231 flights per week), American Airlines (194 flights per week), and Air New Zealand (140 flights per week).

  • How many airports are there in Wisconsin?

    There are 8 airports in Wisconsin. The busiest airport is Milwaukee-Mitchell Airport (MKE), with 45% of all flights arriving there.

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

    Prices will differ depending on the departure airport, but generally, the cheapest airport to fly to in Wisconsin is Eau Claire Airport (EAU), with an average flight price of $188.

  • What is the cheapest day to fly to Wisconsin?

    Based on KAYAK data, the cheapest day to fly to Wisconsin is Friday where round-trip tickets can be as cheap as $218. On the other hand, the most expensive day to fly is Thursday, where round-trip prices are $371 on average.

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

    The cheapest time of day to fly to Wisconsin is generally at night, when round-trip flights cost $199 on average. On average, there is no price difference when choosing to fly in the morning or the evening on this flight route. The most expensive time of day to fly to Wisconsin is generally in the afternoon, which is peak travel time and where the average cost of a ticket is $289.

  • What is the cheapest flight to Wisconsin?

    The cheapest ticket to Wisconsin from Illinois found in the last 72 hours was to Milwaukee, at $179 round-trip. The most popular route is Chicago O'Hare Intl Airport (ORD) to Milwaukee (MKE) and the cheapest round-trip airline ticket found on this route in the last 72 hours was $179.

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

    The cheapest month for flights from Illinois to Wisconsin is October, when tickets cost $204 (return) on average. On the other hand, the most expensive months are January and February, when the average cost of round-trip tickets is $504 and $469 respectively.

  • How many cities have direct flights to Wisconsin?

    From Illinois, there are direct flights to Wisconsin from 1 city. This city is Chicago and there are 1,062 direct flights each week.

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

    There are around 152 direct flights from within Illinois to Wisconsin every day. Most flights (36%) depart in the evening.

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

    Each week there are around 1,062 direct flights from within Illinois to Wisconsin. The most common day for departures is Sunday, with 15% of flights taking off on this day.

  • How long is the flight to Wisconsin?

    An average nonstop flight from Illinois to Wisconsin takes 2h 59m, covering a distance of 270 miles. The shortest route is Chicago Midway Airport (MDW) to La Crosse (LSE) with an average flight time of 0h 27m.

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

    There are not any long-haul (6-12 hour flight duration) or medium-haul (3-6 hour flight duration) flights to Wisconsin. Instead, there are 1,062 short-haul flights (up to 3 hour flight duration), with the most arriving from Chicago.

  • What are the most popular destinations in Wisconsin?

    Based on KAYAK flight searches, the most popular destination is Minneapolis (63% of total searches to Wisconsin). The next most popular destinations are Chicago (23%) and Milwaukee (3%). Searches for flights to Duluth (3%), to Green Bay (2%) and to Madison (2%) are also popular.

Reviews of the top airlines flying from Illinois to Wisconsin

 
Need help choosing which airline to fly with from Illinois to Wisconsin? 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 8979 reviews
8.1Crew
7.3Comfort
6.6Food
7.7Boarding
7.1Entertainment
Airline reviews

I will never book a flight through Cheap fare. They booked me from Portland Main . And would not give me a refund, so I bought 2 tickets one for 299. From Portland Main to ORD. Then I had to buy a ticket from Oregon PDX to ORD that was another 440. So Just so you know they even told me it was there fault but no refund. Bad bussniess. I did inform United but they said they couldn't help me due to the fact I booked through Cheap Tickets. Never again. And I'm spreding the word. I let everyone know at my 50th class reunion

8.0 ExcellentCynthia, Oct 2025ORD - PDX
Read more United Airlines reviews

I will never book a flight through Cheap fare. They booked me from Portland Main . And would not give me a refund, so I bought 2 tickets one for 299. From Portland Main to ORD. Then I had to buy a ticket from Oregon PDX to ORD that was another 440. So Just so you know they even told me it was there fault but no refund. Bad bussniess. I did inform United but they said they couldn't help me due to the fact I booked through Cheap Tickets. Never again. And I'm spreding the word. I let everyone know at my 50th class reunion

Crew and customer service were excellent. This flight also had plenty of leg room and seat mounted screens for entertainment. A very pleasant flight all around!

It would have been better if the crew has supported my husband's reasons for needing to keep the space clear around his feet, rather than insisting that he put his knapsack in that space.

Subject: Formal Complaint: Discriminatory and Unprofessional Conduct – Request for Immediate Action & Compensation Dear [Airline Customer Relations Team], I am writing to file a formal complaint regarding my recent travel experience with [Airline], which was by far the worst I have ever encountered. What occurred was not only unprofessional, but in several instances discriminatory, unsafe, and unacceptable. On the first leg of my trip, I arrived only four minutes past check-in. Instead of making any attempt to resolve the matter, your representative flatly denied me boarding and made me wait while she attended to passengers who arrived after me. By the time a manager intervened, it was too late to board, costing me time, money, and unnecessary frustration. The second leg of my trip (Chicago–San Francisco) raised even more serious concerns. From the outset, it was apparent that the staff—particularly two attendants—prioritized Caucasian passengers while dismissing African American and minority passengers. • When a Caucasian passenger in the exit row refused to comply with federal safety requirements, I, as a first responder, immediately offered to switch seats and assume the responsibility. My offer was blatantly ignored, and instead, a Caucasian passenger seated further up was chosen. This was discriminatory and deeply insulting, especially as I was actively de-escalating the situation that could have delayed the flight further. • During a lengthy tarmac delay of over 90 minutes, passengers were given conflicting and unreasonable instructions that created unnecessary distress and tension. • Throughout the flight, a visibly intoxicated passenger directly in front of me was disruptive, rude to others, failed to comply with seatbelt and electronic device rules, and yet faced no enforcement from the crew. In stark contrast, I was singled out for repeated compliance checks even though I was following every rule. This unequal treatment was so obvious that multiple passengers around me spoke up in my defense. This pattern of behavior demonstrated a clear lack of professionalism, disregard for passenger safety, and discriminatory treatment. I expect far better from an airline of your stature. As a paying customer subjected to this unacceptable treatment, I am formally requesting: 1. A full investigation into the conduct of the staff on both flights. 2. A written apology acknowledging the discriminatory and unprofessional behavior I endured. 3. Appropriate compensation for the distress, inconvenience, and mishandling of my travel. If this matter is not addressed promptly and thoroughly, I will have no choice but to escalate my complaint further, including filing with the U.S. Department of Transportation and sharing my experience through other channels. I trust [Airline] will take this complaint seriously and provide a timely resolution.

Check in was quick and easy during early hours. Flight was on time, and customer services was a plus.

Once we got in the air the pilot made up some of the time of the delay. So that was really nice.

Excellent flight. Boarding was efficient and departure was on time. Smooth flight with on time arrival. Deplaning was also efficient.

Weather delay in Chicago?. No sense of urgency to make connection in Chicago for our connecting flight that wasn't delayed. Connection was missed.

It was delayed instead of departing at 9:20pm, we departed at 11pm… putting us in Columbus after 2am! It was awful. Had I known about the delay, I could have spent some time in the United Lounge… I was starving because I started my journey in Budapest… so I was exhausted and hungry. Plus I had to make new arrangements to be picked up at the airport in Columbus, instead of midnight it was 2:30 am after getting luggage and out of airport. Not feasible. I would have just stayed in Chicago for the night and gotten a morning flight.

It was great, I’m very grateful for the pilots and crew flight attendants for everything.

The plane was late, when we did board the plane was as cold as a freezer. I was freezing the entire flight, no blankets. Lost miserable flight I’ve ever had.

American airlines suck they delay the flights all the time made me sleep in an airport because my flight was delayed and I miss my connecting flight

Very poor delay in dfw was really bad n long

3 hour weather delay followed by 1 hour (and counting) maintenance delay. UGH!

After we'd boarded , they canceled the flight. The crew didn't even know , we just all received text messages. Then after they deplaned us , AA was just like "too bad, go F your self, we sure ain't gonna help you"

I didn't like that my paid for seat was changed 2 hours before my flight.

After a two hour delay, my flight was CANCELLED! No pilot available. Such BS.

Amazing food, great staff, with one noticable detail missing ...but no seat entertainment in any of aircraft ...I am not a fan

I wish American Airlines would change the airline industry by loading the plane back to front instead of front to back. Planes would board so much more smoothly and quickly.

I have long legs, my foot was out in the aisle and when a flight attendant came walking by and I didn't notice, instead of saying "excuse me" or anything like that, she kicked my foot. Extremely rude

Everything you need to know for your flight to Wisconsin

Cabin class types available on flights to Illinois

Cabin classes available on flights to Illinois. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.

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