Find cheap flights to Illinois from $29
This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight departing on 1/20. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
Round-trip
1 adult
Economy
Thu 1/4
Thu 1/11
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Latest Illinois Flight Deals
Best round-trip prices found by our users on KAYAK in the last 72 hours
Nonstop from $71
1 stop from $184
1 stop from $303
Nonstop from $338
1 stop from $234
1 stop from $248
1 stop from $324
1 stop from $295
Nonstop from $358
1 stop from $350
1 stop from $389
2+ stops from $184
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Top 5 airlines flying to Illinois
8.1
JetBlueOverall score based on 19630 reviews
82overall
82comfort
79entertainment
78food
86crew
83boarding
Airline reviews
Pros: "The Pilot was very nice and fast. Got us to Newark in 1 hour and 40 minutes"
Cons: "Seats, communication, everything"
Pros: "The Pilot was very nice and fast. Got us to Newark in 1 hour and 40 minutes"
Cons: "Seats, communication, everything"
Pros: "Great crew. Great plane."
Cons: "I feel like JetBlue used to have more/better movies"
Pros: "Large legs room between seats and wifi on board! But not available in this flight!"
Cons: "Free wifi should be made available on all flights!"
Pros: "Leg room and comfort were outstanding. Free Fly-Fi enabled me to be productive. Using my Amazon Prime membership to watch videos on my own device was great."
Cons: "Movies weren’t available on my screen."
Pros: "The crew was wonderful. They were quick to help when needed."
Cons: "The plug that connects to the headset was broken. The selection of movies could be better. Needed more family oriented programs."
Pros: "-Excellent crew -Nice leg space even if Economy -Free DirecTV -Free internet with decent speed -Electric outlet under every seat -Free seat selection at the time of booking"
Cons: "-Boarding process: should organize the boarding area so that lines can form for each boarding group"
Cons: "Jetblue always has issues with their planes-this is the 4th time I have had a Jetblue reservation and I had to jump on another flight at the last minute because we were not being kept informed of whether the mechanical issues were going to be able to be resolved. Really disappointed in Jetblue"
Pros: "The flight crew was very sensitive to the fact that our flight was very delayed and that several passengers would have a right connection to make in DC. That just topped off an already pleasant experience."
Cons: "After sitting 4.5 hours in the Charleston airport - without an asthma attack, I walked down a gangway to the airplane which just wreaked of mildew. Standing in it waiting for everyone to board caused a severe asthma attack after boarding. A real shame. I suspect I’m not the only one affected."
Pros: "I like JetBlue overall. I like your bag policy, and I generally like the service."
Cons: "My seat didn’t recline. Don’t know why. Button would be pushed - didn’t matter. For a 6 hour flight to Reno AT NIGHT, that sucked. Then my TV went black about 1/2 hour into the flight. Crew didn’t know what happened, but it was a slew of tv’s on the right side of the plane (window seats mostly) that had this problem. These two things made for a tough flight."
Cons: "Got to the gate one minute late and wouldn’t let me on"
Plane was filthy- food in the seat, on the floor, on the tray.
Pros: "My flight was canceled and I don't know when or how much I will be refunded. The flight was canceled due to "maintenance" and they booked me on a new flight...for 16 hours later on the NEXT DAY. That was not acceptable for me and my travel companion since we have work today. There were no other flights and rental cars were scarce. I was able to book us tickets on a bus, and incurred costs for the bus tickets and the transportation to the bus stop. I want to be compensated for those costs AND refunded for the price of the ticket."
Cons: "Everything. There was also a lot of miscommunication about how my gate checked bag would be handled. Once I got back to Austin, my husband had to drive all the way out to the airport to retrieve my bag because they were not able to give it to me in Dallas. It was a huge inconvenience all around."
Cons: "Flight was delayed due to weather. That is understandable. However the crew was not helpful in sharing any information with customers about changes to connecting flights. Much time was wasted and I had to reschedule my flight. The staff members that booked my hotel and my new flight were short and brief and not very helpful or accommodating or informative. Overall I didn’t not feel like a welcomed guest and I do not feel enough compensation was offered for such an inconvenience. Not being able to have my bag overnight was a hassle. I had no clean clothes and had to throw out my contacts because I had no solution. I also couldn’t use the meal voucher they gave me because everywhere in the airport was closed by that time. No stipend was given for toiletries or food delivery. Very unimpressed."
Cons: "Plane had to land in a different city due to inclement weather. Very disorganized process, huge traveling setback, never got my travel voucher."
Cons: "The crew seemed like they didn’t know what they were doing."
Pros: "The one gentleman who came to the RESCUE at the ticket counter was AWESOME!!! AMAZING customer service, friendly, and helpful - I had someone else but it was a pleasure watching him take care of others! (He was wearing a tobagan and ear muffs making him look like he had Mickey Ears on!)"
Cons: "Only 3 people handling check in - ALL of the self service machines needed a restock on bag tags so we were all in line for tags and the one attendant at the Bag Drop kept telling us all she couldn’t print tags. WORST experience at RIC in years!"
Pros: "Flight attendant Louis was great. He was very nice and friendly. Calmed me down when I was nervous about turbulent. Great staff overall!"
Cons: "Plane was 30 minutes late which was not idea because we were getting to our destination in the late evening. Boarding was a mess."
Pros: "Crew was really nice, the timing of the flight is ideal."
Cons: "Bring the same entertainment options available in the US domestic flights to this leg, such as movie streaming via wifi."
Pros: "The flight attendants were friendly and helpful."
Cons: "The American Airlines crew in Houston gave multiple people the wrong information regarding checked luggage for our connecting flight. Because the flight from NYC was over an hour delayed and the misinformation, several people missed the connecting flight. Hobby closes at a certain hour so I now have to wait until tomorrow morning to retrieve my carry on luggage the American Airlines MADE me check because of the group I was in. I called American Aurlines customer service line and they were not helpful. I will never fly American again."
Cons: "Delayed by an hour and spent most of it taxiing."
Pros: "I like that they serve after dinner drinks which will help me to sleep on the plane. Their blankets are better than United. It was a safe flight and I was able to charge my cell phone. I paid for texting and that worked fine for the entire flight. Even with short layover my luggage made it."
Cons: "I was in the last row so it wasn't as comfortable but there were no other aisle seats available. Food was okay but the red wine could have been better."
Cons: "Basic Economy forces you to check bags for a fee and prohibits carry on luggage. I was not prepared for this when checking in. Luckily, we were able to downsize into one suitcase which we checked in."
Cons: "The airline cancelled my return flight home from a Venice without notifying me because they said I was. “No show” on my previous flight over. This was absolutely not true. To cancel someone’s flight and not alert them is highly unethical."
Cons: "Our flight was changed 6 times and then cancelled- we had to sleep in the airport"
Pros: "Seats were comfortable and there was an ample amount of legroom"
Cons: "Flight was delayed 5 hours!"
Pros: "TSA check in was so fast and easy. United terminal TSA was so well organized that we got through very quickly. Also checking bags took just a few minutes."
Cons: "I had a ver good experience"
Cons: "flight attendant was worst i've ever encountered. cared more about his stupid phone game than giving adequate customer service. worst flight ive ever taken"
Pros: "again we flew business class"
Cons: "A waste of money for business class as it was no better than business class 30 years ago. Slightly wider seats with a little more room, but there was no entertainment and the food was awful"
Pros: "On time flight and no problems at all"
Cons: "The plane was having some air conditioner issues but the flight crew informed every one of the problem and what they were doing to fix it. They also came around with water very quickly for everyone to help cool them down. It was either push forward and wait for it to cool down once we got in the air or change planes, I was totally ok with how they handled it."
Pros: "On time departure and arrival"
Cons: "Don’t charge for seat assignments or carry on luggage"
Cons: "Getting off the plane ( We were stuck on the plane for at least 1 hour and twenty min. )"
Pros: "Flight attendants were kind"
Cons: "1 hr and a half delay because they couldn’t frame the restrooms. Uncomfortable seats. 50 bucks for a carryon? Never again"
Cons: "We waiting 2hours... delay Something to fixing on plane! I miss good business in Tampa because of that"
Cons: "I sat behind inebriated guys who were obnoxiously loud on a red eye flight. The flight attendants could have made more effort to ensure the rest of us were not disturbed. I pregnant; so this made an uncomfortable trip unbearable."
Pros: "The landing was good. The flight attendants were nice."
Cons: "The pilot made 3 elderly people wait outside in the cold for 20 minutes so he could make a point to the grounds crew, because the plane shifted. The elderly people were in wheelchairs and we're loaded last on the plane. The flight was overbooked, and it looked like they wanted one of the elderly people to stay back and take another flight. The flight was 40 minutes late because of the pilots ego it seemed. I understand protocol, but if he could step off the plane, so could the other people. It was a mess for no real reason!!! In my opinion!!!"
Pros: "The price of the flight was great, but even with an upgraded seat I will not be flying Frontier again."
Cons: "I upgraded my girlfriend and I to stretch seating for our 5 hour flights roundtrip from ATL to SFO. I did not realize by upgrading and selecting my seat in row 4 that my seats do not recline. This caused several issues with my bad back and with the fold down tray on the seat in front of me. I had my laptop on the tray, and when the person in front of me leaned his seat back all the way suddenly, it pinched the top of the screen between the tray and the back of his seat and cracked my laptop exterior. The main issue was not being able to "stretch" by not having a reclining seat and experienced major discomfort and back pain both flights."
Cons: "They knew at 4am that a 2pm flight was delayed. It was due to staffing"
Pros: "I loved that the plane was new (at least it looked like it) and super clean and that the flight was ON TIME!"
Cons: "Don't bother paying extra for a seat. The crew does not enforce that everyone is sitting where they are supposed to. I paid extra for a seat, and someone was sitting there and refused to get up. I didn't want to make a scene, as I don't want to be on the news for trouble on an aircraft, but I would appreciate it if the crew would make sure people are sitting where they are supposed to if seating costs money."
Pros: "Price before additional fees"
Cons: "All the extra fees. Pick a seat fee? Checked bag fee? Carry on fee?"
Plane did not have outlets for charging devices. The seats are uncomfortable.
Pros: "It got my to where I needed to go....eventually"
Cons: "Didn’t like the hidden fees such a buying your seat. Good thing I checked my email the night before and saw that. Flight was delayed 4 times with no explanation. Won’t be booking again with Spirit simply over the hidden fees."
Pros: "Price"
Cons: "Seats are way to small. Will never fly Spirit agan"
Pros: "Not much on this leg."
Cons: "It’s not a comfortable flight, and had delays that could have been avoided."
Pros: "EXCELLENT SERVICE, ON TIME ARRIVAL, SMOOTH TAKE OFF AND LANDING."
Cons: "Penny Pinching and not even providing water and peanuts/pretzels as complimentary."
Pros: "I didn’t like anything considering the fact that they made me miss my flight back to Dallas"
Cons: "They were very unorganized and not accommodating. I got an alert on my phone telling me to go to One terminal but when I got there I was told to go another terminal to check in but to return back to the terminal where I was to board the plane. In that process I wasn’t informed that they changed the terminal for my scheduled flight and was taking passengers for my flight to check in and board the plane. By the time I could find a Spirit Airlines employee they said told me that they were done calling for Dallas and I had to go to the customer assistance line. While waiting in line I was overhearing other people’s conversations only to realize that I wasn’t the only one that this happened to. I waited in line for over an hour and had to rebook my flight and had to pay for another ticket. I shouldn’t have had to pay for another ticket being that it wasn’t my fault that I missed the flight. The terminal was a mad house and overly busy. I would like to be refunded my money for the ticket I had to purchase or given a voucher for a free flight. I will not recommend flying Spirit Airlines from Ft. Lauderdale airport to anyone. The communication was terrible and I won’t ever fly there again."
Pros: "We were an hour delayed and didn’t know it until we arrived at the airport. The website said the flight was on time. We circled for twenty minutes in bad turbulence once we reached Newark."
Pros: "Nothing"
Cons: "The service, the non communication, cancel our flight with no explanation, service in handeling all of this. Will never fly spirit EVER AGAIN"
Pros: "Strait flight. Friendly crew!"
Cons: "This eas my first time flting Spirit. Extra Charges to choose a seat. Carry on and check in bags are entirely too expensive!! Plane was delayed. No snacks. The seats were very uncomfortable. Flying for a more expensive flight will be much more cost effective and not comfortable."
Pros: "The flight attendants were very friendly and helpful."
Cons: "What I thought was a cheap flight, became a more expensive one because of all the unknown fees. Upon check in, I realized I had to pay $45 each way for a CARRY ON, plus $15 each way for a seat assignment. On board, any food or drink (water, ginger ale, etc) was for purchase only."
Book Cheap Illinois Plane Tickets
Recent one-way flight deals
1/20Sat
nonstopSpirit Airlines
2h 24mDFW-ORD
$29
12/13Wed
nonstopSpirit Airlines
2h 25mDFW-ORD
$36
12/13Wed
1 stopFrontier
14h 33mBWI-ORD
$45
1/16Tue
1 stopFrontier
15h 53mBWI-ORD
$47
1/13Sat
nonstopUnited Airlines
4h 18mSFO-ORD
$59
1/7Sun
nonstopUnited Airlines
4h 10mSFO-ORD
$69
1/18Thu
nonstopAmerican Airlines
4h 15mSFO-ORD
$71
1/9Tue
nonstopAmerican Airlines
2h 39mEWR-ORD
$79
1/13Sat
1 stopJetBlue
8h 17mBWI-ORD
$80
1/8Mon
1 stopJetBlue
5h 11mJFK-ORD
$83
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Recent round-trip flight deals
1/18Thu
nonstopSpirit Airlines
2h 24mDFW-ORD
1/25Thu
nonstopSpirit Airlines
2h 32mORD-DFW
$71
1/11Thu
nonstopSpirit Airlines
2h 24mDFW-ORD
1/14Sun
nonstopSpirit Airlines
2h 32mORD-DFW
$73
1/24Wed
1 stopFrontier
23h 54mBWI-ORD
1/27Sat
1 stopFrontier
13h 36mORD-BWI
$76
1/16Tue
1 stopFrontier
15h 53mBWI-ORD
1/17Wed
1 stopFrontier
11h 36mORD-BWI
$78
2/3Sat
nonstopAmerican Airlines
4h 16mSFO-ORD
2/6Tue
nonstopAmerican Airlines
4h 47mORD-SFO
$118
1/16Tue
nonstopUnited Airlines
4h 13mSFO-ORD
1/22Mon
nonstopUnited Airlines
4h 43mORD-SFO
$128
1/10Wed
1 stopUnited Airlines
7h 47mSEA-ORD
1/17Wed
nonstopUnited Airlines
4h 51mORD-SEA
$143
1/13Sat
nonstopJetBlue
2h 44mJFK-ORD
1/30Tue
nonstopJetBlue
2h 20mORD-JFK
$158
1/9Tue
nonstopJetBlue
2h 57mBOS-ORD
1/13Sat
nonstopJetBlue
2h 18mORD-BOS
$158
1/10Wed
nonstopAmerican Airlines
2h 39mEWR-ORD
1/14Sun
nonstopAmerican Airlines
2h 06mORD-EWR
$163
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Last minute flights to Illinois
Last minute flight, train and bus deals
12/9Sat
nonstopSpirit Airlines
2h 25mDFW-ORD
12/12Tue
nonstopSpirit Airlines
2h 32mORD-DFW
$104
12/9Sat
multi-stopSpirit Airlines
7h 30mDFW-ORD
12/12Tue
nonstopSpirit Airlines
2h 32mORD-DFW
$106
12/7Thu
nonstopUnited Airlines
4h 12mSFO-ORD
12/9Sat
nonstopUnited Airlines
4h 47mORD-SFO
$158
12/10Sun
nonstopJetBlue
2h 59mBOS-ORD
12/14Thu
nonstopJetBlue
2h 17mORD-BOS
$168
12/10Sun
nonstopJetBlue
2h 59mBOS-ORD
12/15Fri
nonstopJetBlue
2h 24mORD-BOS
$178
12/8Fri
nonstopUnited Airlines
4h 15mSFO-ORD
12/12Tue
nonstopUnited Airlines
4h 47mORD-SFO
$188
12/7Thu
nonstopAmerican Airlines
3h 04mBOS-ORD
12/14Thu
nonstopAmerican Airlines
2h 11mORD-BOS
$194
12/6Wed
nonstopAmerican Airlines
2h 57mJFK-ORD
12/11Mon
nonstopAmerican Airlines
2h 13mORD-JFK
$200
12/7Thu
multi-stopFrontier
16h 24mBWI-ORD
12/12Tue
multi-stopFrontier
10h 21mORD-BWI
$227
12/8Fri
multi-stopFrontier
13h 57mBWI-ORD
12/16Sat
multi-stopFrontier
10h 26mORD-BWI
$228
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