Find flights
Deals
When to book
FAQs & Tips
Airlines

Find cheap flights to Illinois from €235

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 4/6. 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
Fri 31/5
Fri 7/6

Search hundreds of travel sites at once for deals on flights to Illinois

In the last 7 days, travellers have searched 43,740,974 times on KAYAK, and here's why:

Track pricesNot ready to book? Create a price alert for when prices drop.

Free to useThere are no hidden charges or fees.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Best Illinois Flight Deals

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

Chicago
Chicago1 stop€399

Good to know

Low season

January

High season

July

Cheapest flight

€235
Best time to beat the crowds (18% less expensive on average)
Most popular time to fly (35% 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 14h 25m, 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 €531 one-way, and €360 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 €360.

  • Which airlines fly to Illinois?

    American Airlines, British Airways & Aer Lingus 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 (98% of total searches to Illinois). The next most popular destination is St. Louis (2%).

  • 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.
7.7
Qatar AirwaysOverall score based on 4452 reviews
7.8Boarding
7.7Comfort
8.2Crew
7.7Entertainment
7.5Food
Airline reviews

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

10.0 ExcellentAnonymous, Apr 2024DOH - BOS
Read more about Qatar Airways reviews

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.

All over with Qatar airlines my experience was really bad due to delays and then putting me on different airlines and after 8 hours of wait I had to listen to their is no plane to fly for another 24 hours. Wore experience ever.

I had already opted for Vegan food before 2 months yet they say we have no record for it,

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

Crew was fantastic got lovely food and plenty of water. Entertainment was good. Never had to ask for anything. Left on time and got to Seattle early. Luggage did not take long either.

Always find Aer Lingus reliable and good value for money. Food on this flight was pretty basic and the headphone Jack at my seat only worked for one ear. Little disappointed in movie selection, limited on recent releases. Staff are okay - but I always buy a cheap ticket so not like I expect first class opulence anyway!!!

Boarding was so quick, flight was ahead of time which is great and the pilot spoke clearly and was letting people know everything, amazing, love travelling with you 😊

Great hospitality and service! Seats are better cushioned then some

Great hospitality and service! Seats could always be cushioned better.

Horrible flight attendant in back of economy that screamed at me, have already reported to United. Horrible food - for Gluten free, why would you assume the person is vegetarian? I was served some kind of horrible curry bean paste and multiple cold rolls and soggy vegetables with no seasoning... um no!

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.

Sorry my last review for prg to fra was for this flight. My prg to fra flight was fine but my second flight back to Washington DC was with a slow awful crew who wouldn’t come in a timely manner to take trash and take trash before serving coffee tea and was shoving other people’s bottles of water on me when we were not traveling together

Lufthansa was amazing. Definitely upgrade your seat if you can swing it - they take very good care of their passengers. Customs in DC is nothing short of a nightmare though. Stood in line waiting to go back through security for 30 minutes, had to RUN through and across two terminals to make my connection and only had 5 minutes to spare. Terrible. Very very poor coordination by the airport staff and CBP.

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

Our flight to Chicago O'Hare was delayed an hour, causing us to miss our connection to MSP and spend an extra 3 hours at O'Hare so we could board a plane with a damaged door and wait another 45 minutes or so. The crew was great, the food decent, The drinks were great: 2 glasses of a nice South African Shiraz, an ice cold can of Beck's Beer, and Dewar's White Label on the rocks.

A350 has great entertainment. Make sure to watch the plane's external tail and nose camera's on landing and take off. Seats were a little hard for a 10 hour flight. I am gluten intolerant, they had good alternative meals for me on the flight.

Boarding was horrible. We were packed into a bus with few seats and made to stand for 10 to 15 minutes, then driven for 5 minutes on wild curves. Complementary food and drink was a tiny chocolate and a bottle of water. Seating was cramped. Aircraft had no video.

didn’t even get to go one of my returning flights cancelled and I wasn’t even in their system, vacation ruined thanks for nothing

Need more time for connecting flights in Munich Food seems worse now on Lufthansa Very uncomfortable seats

Due to long security check and no last call announcements from Gate staff, my family and 12 other passengers missed the flight.

Ryanair is the worst airline in Europe and easily one of the worst in the planet

The Ryanair staff was not polite. We all travelled with the same suitcases as we departed from Thessaloniki, however they decided that for some passengers the suitcase was not the rigth one as far as the dimensions are concerned. Furthermore, one air stewardess asked passengers to close themselves the luggage cabinet in order to prove that the lugagge was not properly fitted, which i think is very unkind and unprofessional. We also had to wait outside , some metres away from the plane until last passengers came off....It was generally a dissapointing experience.

While this flight from Dublin to Venice boarded on time, its departure was delayed by about an hour because, apparently, there were no demonstration kits on board, and we couldn't depart until the safety demonstration was completed. We were informed that we were in danger of losing our delayed slot if Ryanair engineering didn't provide the kits 'soon', which would have resulted in an additional two-hour delay. Thankfully, we didn't incur that additional delay. It's not clear where the source of this problem lies but it needs to be addressed to ensure it does not recur for other flights in the future.

Usual RyanAir flight but disembarking was poor, no rear steps. The Faro Airport required lots of up step and down steps, no elevator Getting through passport control took 50 minutes in the EU line

Toulouse Alicante, excellent. But the 2 next fligth by Air Europa canceled. Bad bad

Flight was delayed due to weather so not much Ryanair could do about that - otherwise it was very efficient and smooth

Boarding was chaotic, the gate changed 4 times and we took off 1 hour late

L'imbarco, personale scortese. Hanno voluto un sovrapprezzo di 70€ per un trolley che faticava ad entrare nel loro misuratore a causa delle ruote troppo rigide

Bag check in was terrible. Arrived 2 hours and 10 minutes ahead of required time and then waited 50 minutes in line to check ONE bag. There were 4 employees standing around as only two were checking bags and there were 6 gates available to check bags. Process is terrible. Lack of customer concern and service.

Spending 10 hours on a flight with no video or wifi access due to issues per stewardess was not enjoyable nor acceptable. Will follow up directly with the airline as well

I really did not like being ordered to pull my shade down by the attendants. One of them was very rude to me about it, standing there until I closed it like I was a child brusquely reaching across me to close an adjoining one. They claim it was so people who wanted to could sleep. It’s a 10:30am flight not a red eye. Closing your shade or leaving it up for natural light should be a choice. Ruined my flight!

My baggage did not arrived with me. Took 3 days to get it after so may calls and follow up

The crew was very attentive and kept busy serving a variety of treats!

Terrible. Flight was 3 hours delayed and I missed my other flight to my final destination

Offered vegetable curry when it was actually tofu which I don’t care for.

The flight was good the crew excellent…but take off delayed three hours!!!

Both mine and my husband's chairs were broken. Also it took 2 hours to get our bags after our flight which was wild.

perhaps eye contact with the cabin crew, instead of abruptness and an impatience to serve.

Not enough trash pickups throughout the flight. Everything else was great.

Book Cheap Illinois Plane Tickets

Recent return flight deals

11/5Sat
1 stopScandinavian Airlines
13h 40mDUB-ORD
9/6Sun
1 stopScandinavian Airlines
34h 05mORD-DUB
€399
24/10Thu
1 stop
13h 40mDUB-ORD
28/10Mon
1 stop
13h 10mORD-DUB
€407
13/9Fri
directBritish Airways
8h 15mDUB-ORD
23/9Mon
1 stopBritish Airways
11h 25mORD-DUB
€420
6/6Thu
1 stopBritish Airways
11h 50mDUB-ORD
13/6Thu
directBritish Airways
7h 20mORD-DUB
€422
15/5Wed
1 stopKLM
14h 50mDUB-ORD
13/6Thu
1 stopKLM
11h 05mORD-DUB
€434
6/6Thu
1 stopAir France
12h 07mDUB-MDW
13/6Thu
1 stopAir France
16h 04mMDW-DUB
€441
28/5Tue
1 stopKLM
13h 21mSNN-ORD
4/6Tue
1 stopKLM
11h 40mORD-SNN
€442
6/6Thu
1 stopAir France
12h 07mDUB-MDW
13/6Thu
1 stopAir France
16h 04mMDW-DUB
€442
6/6Thu
directFinnair
8h 02mDUB-ORD
13/6Thu
1 stopFinnair
14h 30mORD-DUB
€443
9/8Fri
directFinnair
8h 00mDUB-ORD
28/8Wed
directFinnair
7h 20mORD-DUB
€486

Search by stops

Search by airline

Search by price

Recent one-way flight deals

4/6Tue
2 stops
26h 04mDUB-ORD
€235
4/6Tue
3 stops
35h 02mDUB-ORD
€249
20/5Mon
3 stops
47h 34mDUB-ORD
€266
20/5Mon
2 stops
32h 50mDUB-ORD
€267
9/6Sun
directAer Lingus
8h 25mDUB-ORD
€451
5/9Thu
directLufthansa
8h 40mDUB-ORD
€461
8/5Wed
directAer Lingus
8h 25mDUB-ORD
€462
18/5Sat
1 stopTurkish Airlines
22h 45mDUB-ORD
€499
15/6Sat
2 stopsBritish Airways
25h 35mDUB-ORD
€538
28/10Mon
2 stopsBritish Airways
16h 02mDUB-STL
€708

Search by stops

Search by airline

Search by price

Recent domestic flight deals

29/5Wed
directJetBlue
2h 56mJFK-ORD
30/5Thu
directJetBlue
2h 28mORD-JFK
€110
14/5Tue
directSpirit Airlines
4h 07mLAX-ORD
15/5Wed
directSpirit Airlines
4h 31mORD-LAX
€111
28/5Tue
directDelta
2h 49mLGA-ORD
30/5Thu
directDelta
2h 22mORD-LGA
€117
28/5Tue
directDelta
2h 49mLGA-ORD
29/5Wed
directDelta
2h 15mORD-LGA
€119
17/8Sat
directAlaska Airlines
4h 06mSEA-ORD
24/8Sat
multi-stopAlaska Airlines
6h 37mORD-SEA
€167
15/9Sun
multi-stopAlaska Airlines
6h 45mSEA-ORD
25/9Wed
directAlaska Airlines
4h 34mORD-SEA
€176
29/5Wed
directUnited Airlines
2h 35mEWR-ORD
31/5Fri
directUnited Airlines
2h 20mORD-EWR
€201
29/5Wed
directUnited Airlines
2h 37mLGA-ORD
31/5Fri
multi-stopUnited Airlines
6h 30mORD-LGA
€204
25/5Sat
multi-stopAmerican Airlines
5h 54mBOS-ORD
17/8Sat
directAmerican Airlines
2h 29mORD-BOS
€213
25/5Sat
multi-stopAmerican Airlines
5h 54mBOS-ORD
27/7Sat
directAmerican Airlines
2h 20mORD-BOS
€235

Search by stops

Search by airline

Search by price

Last minute flights to Illinois

Last minute flight, train and bus deals

5/5Sun
multi-stopIcelandair
12h 05mDUB-ORD
15/5Wed
multi-stopIcelandair
9h 35mORD-DUB
€524
2/5Thu
multi-stopJetBlue
12h 58mDUB-ORD
13/5Mon
multi-stopJetBlue
17h 40mORD-DUB
€656
6/5Mon
multi-stopKLM
16h 07mDUB-STL
8/5Wed
multi-stopKLM
32h 15mSTL-DUB
€961
6/5Mon
multi-stopAir France
20h 10mDUB-STL
8/5Wed
multi-stopAir France
36h 52mSTL-DUB
€1,151
6/5Mon
multi-stopAir France
11h 50mDUB-ORD
13/5Mon
multi-stopAir France
17h 40mORD-DUB
€1,441
5/5Sun
multi-stopKLM
17h 34mDUB-ORD
15/5Wed
multi-stopKLM
13h 50mORD-DUB
€2,997
5/5Sun
multi-stopLufthansa
16h 50mDUB-ORD
12/5Sun
multi-stopLufthansa
12h 20mORD-DUB
€3,602
6/5Mon
directAer Lingus
8h 25mDUB-ORD
13/5Mon
multi-stopAer Lingus
10h 38mORD-DUB
€5,339
5/5Sun
directLufthansa
8h 30mDUB-ORD
13/5Mon
multi-stopLufthansa
14h 30mORD-DUB
€5,410
6/5Mon
directAer Lingus
8h 25mDUB-ORD
13/5Mon
directAer Lingus
7h 30mORD-DUB
€5,951

Search by stops

Search by airline

Search by price

Flights to Illinois

Return flight deals:

Illinois - Ireland

Cabin classes:

€1,445
€1,246
€376