
Cheap Flights to Illinois
Cheapest round-trip prices found by our users on KAYAK in the last 5 daysBook Cheap Illinois Plane Tickets
Recent round-trip flight deals to Illinois
Recent one-way flight deals to Illinois
Recent last minute flight deals to Illinois
Recent direct flight deals from the United States to Illinois
KAYAK's insights & trends for flights to Illinois
Get data-powered insights and trends for flights to Illinois to help you find the cheapest flights, the best time to fly and much more.
What is the cheapest flight to Illinois?
The cheapest ticket to Illinois from the United States found in the last 5 days was to Chicago Midway Airport, at $118 round-trip. The most popular route is Atlanta (ATL) to Chicago Midway Airport (MDW) and the cheapest round-trip airline ticket found on this route in the last 5 days was $118.
How much is a flight to Illinois?
A flight to Illinois costs $389 on average. The cheapest price found on KAYAK in the last 2 weeks was $38 for the route Fort Lauderdale (FLL) to Belleville (BLV). The most popular routes on KAYAK are New York to Chicago which costs $352 on average, and San Francisco to Chicago, which costs $497 on average.
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What is the cheapest month to fly from the United States to Illinois?
The cheapest month for flights from the United States to Illinois is December, when tickets cost $183 (return) on average. On the other hand, the most expensive months are July and June, when the average cost of round-trip tickets is $224 and $223 respectively.
What is the cheapest time of day to fly to Illinois?
The cheapest time of day to fly to Illinois is generally in the evening, when round-trip flights cost $371 on average. Morning departures are around 25% more expensive than evening flights, on average. The most expensive time of day to fly to Illinois is generally in the afternoon, which is peak travel time and where the average cost of a ticket is $529.
How far in advance should I book a flight from the United States to Illinois?
To get a below average price on the flight from the United States to Illinois, you should book around 2 weeks before departure, which saves you about 25% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 23 weeks before departure.
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 Springfield Capital Airport (SPI), with an average flight price of $146.
How many airports are there in Illinois?
There are 12 airports in Illinois. The busiest airport is Chicago O'Hare Airport (ORD), with 91% of all flights arriving there.
How long is the flight to Illinois?
An average nonstop flight from the United States to Illinois takes 2h 48m, covering a distance of 956 miles. The shortest route is Minneapolis (MSP) to Chicago Midway Airport (MDW) with an average flight time of 1h 25m.
How many direct flights to Illinois are there each day?
There are around 4,868 direct flights from within United States to Illinois every day. Most flights (49%) depart in the morning.
How many direct flights to Illinois are there each week?
Each week there are around 34,072 direct flights from within United States to Illinois. The most common day for departures is Sunday, with 16% of flights taking off on this day.
How many long-haul flights are there to Illinois each week?
Each week there are around 16 long-haul flights (6-12 hour flight duration), 3,627 medium-haul (3-6 hour flight duration) and 30,429 short-haul (up to 3 hour flight duration) flights to Illinois. The most long-haul flights depart from Honolulu.
How many cities have direct flights to Illinois?
From the United States, there are direct flights to Illinois from 187 cities. The city with the most direct flights is New York, with 1,519 direct flights each week.
Good to know
Low season | January |
|---|---|
High season | July |
Cheapest flight | $69 |
Flights to Illinois: the best tips from KAYAK users' own experiences
FAQs - booking Illinois flights
Top tips for finding cheap flights to Illinois
Reviews of the top 5 airlines flying to Illinois
Maybe different snack selection. To much sodium in them. I know refrigerators are not available but there has to be healthier items.
Maybe different snack selection. To much sodium in them. I know refrigerators are not available but there has to be healthier items.
Wasn't expecting this, but, we actually ended up getting assigned to the first row of seats!!!!! The extra legroom came in handy
Flight was delayed over 3 hours. Planes were dirty. Staff indifferent. And they serve vegan pretzels as snacks.
The flight was smooth. The Southwest experience has degraded overall, but this one was okay.
The checking experience in Orlando was terrible, almost missed the flight. Too many travelers and Southwest completely understaffed.
no service at all due to turbulence. they should've at least given us snacks, there were only 10 people on the entire flight.
For the first time in a long time, the Wi-Fi actually worked the entire flight! The flight crew was amazing as usual.
Great flight. I didn't get a drink because I was asleep whole on the flight.
Love them will get a Southwest card to track my points and keep flying with them. My family and I were pleased with the services.
WiFi was not working and didn’t have a beverage service
Sat in the tarmac at O’Hare for 65 minutes. This is a regular occurrence for delta at O’Hare
Delta was fine though my flight was delayed 4 hours into LGA and my return into ORD involved a taxi of 1+ hour to the gate
It was as good as it could be. Flying is not a pleasant experience these days.
There was an unruly family behind us that made the short flight miserable!!! The cabin crew did nothing to contain it.
Flight delay was frustrating, also you cannot checkin online without delta app, web browser check-in throw errors
Got on the plane and sat there for an hour before departure.
Very large passenger too space from my own seat. Arm board couldn’t be lowered because of his size. It wads very uncomfortable trip, as the flight was full couldn’t move anywhere having back pain because of the position in which I was the entire flight.
Cramped seating for me. Luckily it wasn’t a long flight
5 hour delay. They blamed the weather but it was the computer issues they had been dealing with for days.
I usually have a positive experience with Delta. Complimentary upgrades are always nice!
Comfortable seats and good crew. There should be some breakfast options in menu for economy class to purchase Wifi was not working in the flight
On time. Accommodated carry on and personal bag in the plane. Good entertainment available and access without using own device. Gave a whole can of juice rather than a pour. Seat did not recline much.
Good, our flight was delayed but that was totally out of their control due to weather and a presidential visit.
The price. Omg $1100. Was crazy and it was not clear on the website.
Excellent. I had a medical emergency on flight SNA-ORD and the attendants were very helpful.
Usual wait for over a half hour for a gate at Ohare. They tell you you'll get there early then sit on the plane and wait almost an hour
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.
Another American Airlines flight, another significant delay. At least this one wasn't canceled like many others have been. This time we sat on the runway at LaGuardia for 2.5 hours. By my count that is 7 American flights the last three months that have been delayed 2 hours or more or canceled entirely.
There was no clear update on the flight until last minute and made it an hour delay. No clear flight aircraft or incoming flight which we will be boarding. We would plan accordingly for our connecting flight. This is one one the worst service, I also had to buy an another ticket with different ai carrier. American airline was not letting me plan my trip, made us just waiting. Not a good service at all.
The plane was delayed after we boarded - although they sent an email to my work email (which I did not get until later) there was no announcement from the PA about the delay in flight. Fortunately, they made up the time in the air and we landed around the original time.
My luggage was lost at some point during my layover between Chicago and LHR. I landed Tuesday morning, and did not get it until Thursday night. Ironically, the people at the ticket desk had added a “priority” sticker to my tracking tag.
My experience was fine, with one surprising exception. After leveling off at cruising altitude, the main cabin flight attendant made an announcement that he had a cold, so he would not be coming through the aisle to provide cabin service. He claimed this was in consideration of his health and safety and ours. However, if passengers wanted a beverage, he invited them to come to the back of he plane, where he would provide service. I understand that a flight attendant's primary responsibility is to ensure passenger safety, but a secondary role is to provide service. If this flight attendant was too sick to perform his duties - and if he truly cared about passenger health and safety , as he claimed - he should have stayed home and called in sick, rather than exposing the cabin to his germs.
The flight was delayed multiple times. Breakfast was not served and only an apology given and statement that we could find better pastries in Paris. Seats were extremely narrow and uncomfortable.
We waited over 30 minutes for a gate in Chicago and more than 15 minutes for the doors to open. Cookies were missing from the menu.
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.
Flight was scheduled at 9:40pm. Got delayed to 10 am, the next day. crazy
The bag check, flight check-in, and onboard experience convinced my wife and me that we will actively go out of our way to avoid flying Frontier Airlines in the future. At bag check, we were informed that check-in could only be completed via the Frontier mobile app. Unfortunately, the app was extremely frustrating—sending us through repetitive, confusing loops that repeatedly forced us to decline add-on services with nearly every click. While most airline apps upsell, this one felt intentionally exhausting. As the process dragged on, we became genuinely concerned that my phone battery would die before check-in could be completed. We approached the bag check staff—who were standing together talking—and explained both our frustration and our predicament. They laughed. Later, my wife described the interaction as “gaslighting,” which felt accurate. We were then informed it would cost $25 per person simply to have our boarding passes printed. From that point forward, the tone of the experience was consistently hostile. The bag check employees were condescending and combative, behaving more like bullies than customer service staff. Unfortunately, that same attitude continued onboard. One flight attendant argued with me when I attempted to stow my backpack in the overhead bin. I explained that we had each paid $75 to check our bags specifically so we would not need to use carry-on space and could have adequate legroom. She demanded to see my ticket, pointed out that it said “no carry-on”—which I acknowledged—and I reiterated that this was precisely why we paid to check our bags. Her response was, “I don’t make the rules.” She then walked away, but not before asking if I “truly wanted to fly back to Chicago today?”—an unnecessary and unmistakable threat. It is also worth noting that despite booking our tickets together in the same transaction, we were not seated together. Upon our return to Chicago—where we could once again sit together—we compared onboard experiences. We both remarked on how unhappy the flight attendants appeared and how each of us was separately asked whether we would like to purchase a beverage. We declined. At no point was water mentioned as an option, leaving us with the clear impression that even water came at a cost—or that complimentary water, if available at all, was deliberately left unmentioned. Overall, the experience was shocking and deeply disappointing, but it was also a profound learning experience—one we will not forget and will not repeat. -Steve
Good for a budget airline! It was easy to get on, staff was really nice. Can’t say anything about the food or entertainment because it wasn’t available, which is fine.
This company socks. It's fraud. They canceled our flight yesterday, and today we were late because of a really long line at the check in bag. At the rebook station, there was ton of people. The workers were all rude. I am gonna make a report to FTC.
The single worst check in experience I could imagine. I’ll never do any business with Frontier or any affiliated company
Too many extra fees, uncomfortable, little leg room. Will not recommend this airline.
Severe turbulence. Captain never came on to reassure passengers after things settled down.
We were delayed three times ,and that destroyed my plans, and reservations
The crew was delayed because they came on another flight that was delayed due to weather 10pm flight left at 1.30 am The airline made no effort to align alternate crew
The flight itself was ok and the pilot was very communicative. However, our flight was delayed for almost 3 hours, the gate was changed 3 times and there was no communication as we were waiting. The flight staff was overall a little crabby...I understand as they probably had a long day but we all did.