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€215 Find cheap flights to Illinois

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Ireland to Illinois departing on 24/9. 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.
1 adult
0 bags
Mon 26/8
Mon 2/9

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Best Illinois Flight Deals

Cheapest return prices found by our users on KAYAK in the last 72 hours

Chicago
Chicago1 stop€348

Good to know

Low season

January

High season

July

Cheapest flight

€215
Best time to beat the crowds (12% less expensive on average)
Most popular time to fly (23% more expensive on average)
Flight from Dublin to Chicago O'Hare Airport

FAQs - booking Illinois flights

  • How long is the flight to Illinois?

    An average direct flight from Ireland to Illinois takes 16h 48m, covering a distance of 9453 km. The most popular route is Dublin - Chicago with an average flight time of 8h 00m.

  • What is the cheapest flight to Illinois?

    The cheapest ticket to Illinois from Ireland found in the last 72 hours was €595 one-way, and €344 round-trip. The most popular route is Dublin to Chicago O'Hare Intl and the cheapest round-trip airline ticket found on this route in the last 72 hours was €344.

  • Which airlines fly to Illinois?

    American Airlines, Aer Lingus & British Airways fly the most frequently from Ireland to Illinois.

  • What are the most popular destinations in Illinois?

    Based on KAYAK flight searches, the most popular destination is Chicago (99% of total searches to Illinois). The next most popular destination is St. Louis (0.5%).

  • How does KAYAK’s flight Price Forecast tool help me choose the right time to buy?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a given destination and date is likely to change within 7 days, so travellers know whether to wait or book now.

See more FAQs

Top tips for finding cheap flights to Illinois

  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest Illinois flight deals.

Top 5 airlines flying to Illinois

Need help choosing which airline to fly with from Ireland 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.
7.6
Qatar AirwaysOverall score based on 4155 reviews
7.8Boarding
7.6Comfort
7.5Food
8.1Crew
7.6Entertainment
Airline reviews

Do I need to repeat my complaints about my lost carry on bag?

6.0 GoodAnonymous, Jul 2024DOH - LAX
Read more about Qatar Airways reviews

Do I need to repeat my complaints about my lost carry on bag?

Noice cancelling headphones would be better since it’s a crowded plane And kids behaviors are unavoidable

More facilities to transport to the gates......felt too much walking distance

Just happy I flew Qatar Airways awesome no wonder they are #1 in the world right now! The food was just delicious, very courteous, professional crew.

It was good no problems made it on time for the next flight overseas!

It was a really long flight from Doha to Philadelphia and it was overall a good one. The one area that I would comment on is that there is a lot of single-use plastic and disposables in the meal service for American Airlines. It would be great to see more circular options in the meal service to reduce the amount of waste.

Suddenly Flight has been change by Qatar and there’s no information is there of us from Bom to Doha and counter person is behaving like Qatar owner next I will not buy Qatar and I will not suggest anyone to fly in Qatar

The crew was fantastic and the over flight was perfect as well.

They shld provide food. Between food they are giving 10 hours gap which is toooo much

The crew was great and the food and liquor offerings were good. Seats were a bit cramped. Flight arrived early at destination. That's a plus.

United failed me in cancelling flight to Chicago. Then put me on American Airlines standby to Miami for onward connection to RMO via IST. Standby failed. They looked me for Sunday morning 24 hours late at this point). Made it to Miami but Turkish airlines cancelled my seats and demanded $1360 to rebook the flights for the following day ! I went to United, spent two hours negotiating with Mr Ruis ? Who said he could do anything for me as he could fix problems that United caused in Miami. He suggested I call the 800 number. When I managed to.get through on my 6th call, I was on hold 2 hours and 30 minutes waiting for an agent when the call was cut off by United phone system. I went back to American. At last a lady , who had zero responsibility in this fiasco, helped me to find a replacement flight that night with Polish airlines to RMO through Warsaw at a cost of $968 including bag charge. I booked it with only a few hours to spare. The lady at American helped to recover and redirect my checked suitcase that had arrived in Miami a day earlier United customer service were awful. United partner Turkish airlines were horrendous and took zero responsibility. I ended up being late to my appointment overseas by 45 hours with zero compensation, no food vouchers, no replacement flights until I found one and paid for it myself. I reporting the entire fiasco to the secretary of state for Tennessee for law violations and refusal to remedy and compensate. I now need help to extend the trip by two days but United are not responding to communications

Flight crew was very nice and we had a direct flight, which was great. My seat was very cramped, despite paying for the seats. The food was terrible and the check in process was a bit chaotic.

The flight was delayed dur to which I missed my bus from Chicago to Champaign.

I took a nine-hour flight in economy class, and the seats were quite comfortable. I even managed to take a long nap, which rarely happens. There was a good selection of movies, and the complimentary kit included socks, ear plugs, a sleep mask, lip balm, and a toothbrush with toothpaste.

Inflight wi-fi is below par and difficult to access.

It was a good experience. With the long layover they provided the TourIstanbul option to have the free sightseeing bus tour - that was a great option to pass the time. Airport at Istanbul is very comfortable and convenient. Flight was comfortable.

Great service, great food, and comfortable business class seats... Friendly and professional flight attendants and ground crew, overall 5 star experience!

Movie selection was ok, but could be better. Would like to see greater selection of newer movies.

Loved the check-in experience. Very friendly staff and not crowded. I did wind up with a middle-middle seat, which was quite uncomfortable. Always appreciate the very professional staff on TAL.

Paying for reserved seats and never received the seats I paid for !! Just fake and a surprise out of their " box "

Great customer service. Frequent updates from the pilot. Smooth flight. Good entertainment. Meal service.

Long unexplained delay, uncomfortable back row, long waits for trash collection.

Plane could have been cleaner. There were many crumbs and crud around the seat mounts.

Are Longus was fine. I booked thru Kayak and was unable to get my business class seat early. Sat next to galley. Crew forgot to wake me for breakfast.

Short flight so not much to rate. Surprised I had to pay for a soda.

the room on the plane was good but that is because flight not sold the other three seat and I had room. the food in terrible.

First the price I paid was excellent, my flight was full, but my seat was roomy. The one downside to the experience was they had games on the entertainment console. The guy behind me poked at my head about half the flight. I hope they get rid of this feature.

Very good need to offer better choice of food for business

They should. Heck planes more often not when they are suppose to be leaving causing delays

Aer Lingus interior is not the cleanest. I've seen crumbs on the seat and wrappers on the floor when I boarded

Overall experience is mediocre and the food was poor. I would avoid Lufthansa next time.

The airplane did not offer standard outlets so I was unable to work on my laptop. This is totally unacceptable for an international flight.

No complains with the crew. But generally speaking food is awful, entertainment is not good either.

The flight was delayed more than 1.5 hours. Phone calls to united did not satisfy our need to get to Chicago to met family for fight to europe. I was told the flight was booked thru luftansa and united could not make adjustments. When call luftansa they were unaware of the significant delay on the united flight out of mci. They would not authorize a flight change. We went to the airport, as if we would be flying as scheduled, United checked us in, as if our flight would leave as scheduled. We took our bag to be checked to the baggage drop and the agent their confirmed our flight was significantly delayed. She worked for 30 min to get us on another flight. We ended up flying to Denver then to Munich. The rest of the family that flew to Chicago for our meet up and flight to Europe ended up flying to Munich alone. We meet up in Munich for our last leg to luxembourg. In luxembourg we learned on bag was scheduled on our delayed flight. The flight was canceled and we did not receive the bag in lux. We filed a lost back claim. Now 3 days later we STILL do not have the bag. It is apparently in luxembourg and they maybe tried to deliver, however the names on the door of the air b&b do not match the name on the baggage claim so the French speaking delivery person called no one could understand him so he took the bag and left. My brother, traveling with me under a different reservation , has been without essentials for 3 days. One or all of us has stayed "home" each day waiting on the bag. Today was my turn. Delivery window was 10:30 to 2:30. No attempt to knock or ring bell. After the hang up call, my brother called me and told me to check the door. There was nothing there. No sign of attempted delivery, no delivery man, nothing. Being unable to change clothes and having family members take turns waiting on a bag that never comes has ruined this family vacation. Thanks United/Luftansa

The trip was good except for the delay that caused a connection issue in Chicago.

They canceled our flight last minute and we had to get another flight with twice the cost

Will try to not fly with them again. Delays because of weather but got redirected to an airport where I could not make connection.

my flight was at 3:45 after that they delayed to 4:40 I have transit from Chicago to Frankfurt and Frankfurt to vina airport from vina to Erbil buy the Time I come to Frankfort my other flight left me I have to stay at airport all day with my 5 kids ask for help no one help me I spent at airport almost $450 just for food was horrible flight ever I call and ask for hotel from united customer service they been telling me we can’t provide any hotel I need some refund or fixed my flight when I return to America need some one respond my email

The crew member put her luggage and boxes behind my seat so I was able to recline while the passenger in front of me did for 8 hours. My knees were forced against the seat for hours :(. Dude sitting next to me hasn't showered in weeks so I almost threw up.

I always try to book flights that don’t charge for baggage. Yet I was charged $75 for this flight.

Entertainment was good. Food was OK. Cab crew was great.

Overall flight experience was good. Unfortunately our process getting to our flight was a hit or miss. Our flight was delayed perhaps for the best as getting from terminal to terminal is very long and security had problems with the machines that delayed us getting to our flight. Heathrow security could care-less that you have a flight you are about to miss!

Access to movies was nice, food not bad, and landing was smooth. Cramming us in like sardines is not fun. A little more space to bend down to get a bag or not touch my neighbors arm because we’re so close would be better for a 9 hour flight. Whomever designed the seating and you, who bought these planes, clearly are NOT interested in customers’ comfort. So stop pretending you do. Also, if you want traveler’s to check their bags so there is space to store carry one, don’t charge so much to check baggage. Seriously?!

Horrible. Crew is not helpful. Lounge is sub standard and overcrowded. Getting to your plane is underwhelming “via a bus”. Worst experience I have had.

I had to wait for 10 hours at the airport and no hotel accommodation was provided. That sucks big time.

They can't seem to deliver a delayed bag in less than a week. Is this the 19th century?

We're waiting an BA flight being operated from London to Raleigh

Could be better in all aspects. Poor communication. Rude staff

The seats are comfortable enough, but the layout in business is wacky. The boarding process is disorganized. The flight attendants are friendly enough, but the food and snacks are sub par.

Crew was great. Food definitely top 10% for airline food. Seat was comfortable and legroom was good, BUT the seats were too close together and I was touching arms with the guy next to me the entire flight. Also, I had an aisle seat, and although my arm was pulled right up to my side, I was bumped by passengers and crew at least 6x. I'm looking into business class next time. One last note: the whole British-AA airlines partnership thing was confusing. In 2024 this should be seamless, and passengers shouldn't need this # for BA and that # for AA. There should be a single unified way of messaging from the airlines and checking things for the passengers.

Book Cheap Illinois Plane Tickets

Recent return flight deals

12/9Thu
1 stopScandinavian Airlines
35h 15mDUB-ORD
23/9Mon
1 stopScandinavian Airlines
34h 05mORD-DUB
€348
17/1Fri
1 stopBritish Airways
14h 00mDUB-ORD
26/1Sun
1 stopBritish Airways
10h 50mORD-DUB
€349
24/8Sat
directAer Lingus
8h 25mDUB-ORD
2/9Mon
directAer Lingus
7h 30mORD-DUB
€460
14/8Wed
1 stopKLM
13h 05mDUB-MDW
19/8Mon
1 stopKLM
14h 21mMDW-DUB
€464
12/8Mon
1 stopKLM
13h 49mDUB-ORD
9/9Mon
1 stopKLM
13h 03mORD-DUB
€466
13/8Tue
directFinnair
8h 02mDUB-ORD
7/9Sat
directFinnair
7h 10mORD-DUB
€474
23/8Fri
directFinnair
8h 02mDUB-ORD
30/8Fri
directFinnair
7h 05mORD-DUB
€475
7/10Mon
directAer Lingus
8h 25mDUB-ORD
11/10Fri
1 stopAer Lingus
13h 50mORD-DUB
€624
21/12Sat
2 stopsLufthansa
32h 05mDUB-ORD
29/12Sun
2 stopsLufthansa
19h 15mORD-DUB
€715
25/8Sun
1 stopLufthansa
20h 02mDUB-STL
31/8Sat
1 stopLufthansa
12h 50mSTL-DUB
€912

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Recent one-way flight deals

24/9Tue
2 stops
40h 22mDUB-ORD
€215
29/8Thu
2 stops
59h 53mDUB-ORD
€222
28/11Thu
2 stopsLufthansa
15h 20mDUB-ORD
€420
31/8Sat
directLufthansa
8h 30mDUB-ORD
€444
14/10Mon
1 stopTurkish Airlines
22h 45mDUB-ORD
€460
30/10Wed
directAer Lingus
8h 30mDUB-ORD
€482
8/9Sun
directAer Lingus
8h 25mDUB-ORD
€485
19/10Sat
1 stopBritish Airways
14h 20mDUB-ORD
€508
28/10Mon
1 stopTurkish Airlines
23h 15mDUB-ORD
€509
14/10Mon
2 stopsBritish Airways
24h 23mDUB-ORD
€513

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Recent domestic flight deals

25/9Wed
directAlaska Airlines
4h 03mSEA-ORD
29/9Sun
directAlaska Airlines
4h 34mORD-SEA
€64
17/8Sat
directSpirit Airlines
4h 07mLAX-ORD
27/8Tue
directSpirit Airlines
4h 20mORD-LAX
€90
1/9Sun
directJetBlue
2h 57mBOS-ORD
4/9Wed
directJetBlue
2h 32mORD-BOS
€100
31/8Sat
directJetBlue
2h 50mBOS-ORD
4/9Wed
directJetBlue
2h 32mORD-BOS
€104
7/9Sat
directDelta
2h 56mBOS-ORD
10/9Tue
directDelta
2h 37mORD-BOS
€113
1/11Fri
directDelta
2h 51mLGA-ORD
9/11Sat
directDelta
2h 17mORD-LGA
€117
8/8Thu
multi-stopAmerican Airlines
5h 15mJFK-ORD
12/8Mon
directAmerican Airlines
2h 21mORD-JFK
€144
5/8Mon
directAmerican Airlines
2h 37mEWR-ORD
12/8Mon
directAmerican Airlines
2h 18mORD-EWR
€168
8/10Tue
multi-stopUnited Airlines
4h 10mEWR-ORD
9/10Wed
directUnited Airlines
2h 16mORD-EWR
€205
15/8Thu
multi-stopUnited Airlines
5h 14mEWR-ORD
17/8Sat
directUnited Airlines
2h 22mORD-EWR
€211

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Last minute flights to Illinois

Last minute flight, train and bus deals

30/7Tue
multi-stopUnited Airlines
32h 12mDUB-ORD
18/8Sun
multi-stopUnited Airlines
10h 24mORD-DUB
€716
30/7Tue
multi-stopAir Canada
19h 27mDUB-ORD
18/8Sun
multi-stopAir Canada
18h 54mORD-DUB
€717
27/7Sat
multi-stopUnited Airlines
25h 10mDUB-ORD
4/8Sun
multi-stopUnited Airlines
14h 52mORD-DUB
€757
29/7Mon
multi-stopUnited Airlines
12h 25mDUB-ORD
20/8Tue
multi-stopUnited Airlines
11h 50mORD-DUB
€775
27/7Sat
multi-stopUnited Airlines
23h 45mDUB-ORD
4/8Sun
directUnited Airlines
7h 50mORD-DUB
€776
27/7Sat
multi-stopAmerican Airlines
12h 14mDUB-ORD
2/8Fri
multi-stopAmerican Airlines
14h 00mORD-DUB
€917
27/7Sat
multi-stopAmerican Airlines
12h 14mDUB-ORD
2/8Fri
directAmerican Airlines
7h 30mORD-DUB
€934
29/7Mon
multi-stopSWISS
48h 00mDUB-ORD
20/8Tue
multi-stopSWISS
38h 30mORD-DUB
€949
30/7Tue
multi-stopKLM
12h 44mDUB-MDW
18/8Sun
multi-stopKLM
10h 58mMDW-DUB
€1,015
28/7Sun
directAer Lingus
8h 25mDUB-ORD
28/7Sun
directAer Lingus
7h 15mORD-DUB
€1,532

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Flights to Illinois

Return flight deals:

Illinois - Ireland

Cabin classes:

€2,268
€1,204
€487