€281 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 16/1. 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

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

 
These are the airlines KAYAK users have selected most often from within our search results for flights to Illinois
These are the airlines KAYAK users have selected most often from within our search results for flights to Illinois

Best Illinois Flight Deals from Ireland

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

Chicago
Chicago1 stop€336

Good to know

Low season

January

High season

July

Cheapest flight

€281
Best time to beat the crowds (4% less expensive on average)
Most popular time to fly (9% 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 17h 33m, 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 €400 one-way, and €346 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 €346.

  • 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 (96% of total searches to Illinois). The next most popular destination is St. Louis (4%).

  • 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

  • Looking for cheap airfare to Illinois? 25% of our users found return tickets to Illinois for the following prices or less: From Shannon €725, from Dublin €1,000
  • Book at least 1 week before departure in order to get a below-average price.
  • High season is considered to be February, March and April. The cheapest month to fly from Ireland is September.
  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest Illinois flight deals.
See more tips

Top 5 airlines flying to Illinois

 
See real verified KAYAK customer reviews for airlines flying to Illinois. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline from Ireland to Illinois. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
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.
7.4
United AirlinesOverall score based on 9070 reviews
7.7Boarding
7.3Comfort
8.1Crew
6.7Food
7.1Entertainment
Airline reviews

Did not even get on board. Was told I needed an esta agreement. Was not aware of this when I booked the fare and not told about them

2.0 MediocreAnonymous, Dec 2024GUA - ORD
Read more United Airlines reviews

Did not even get on board. Was told I needed an esta agreement. Was not aware of this when I booked the fare and not told about them

Cramped seats. Audio jack for the in -flight entertainment was broken.

Flight was great albeit the long line before the int’l immigration given the timing of the year.

They canceled our flight and left us stranded to figure it out

We appreciated the friendly, efficient, and professional flight attendants. A wider selection of hot foods would be nice.

Did not have enough time from Venice seaport at Ravenna to get to Venice airport in order to make the scheduled flights. Need to have at least 3+ hours from ship docking to airport.

Everything was very good. Was able to change a make run flight leaving on direct earlier in the app -seamless!!! Well done

Being stick waiting for gate at ORD cause me to almost miss my connecting flight…being deaf United made no no effort to keep me updated as I couldn’t hear the PA

As usual, United scheduling is completely misleading. A 54-minute layover at O’Hare is too short to make a lot of connections, especially since the flight landed “on time” but had to wait on the taxiway 15 minutes for a gate to open up. Then it takes another 10 minutes to exit the plane before one can run to another concourse to catch a connecting flight.

The seats on the aircraft are like sitting in a rock. During the boarding process they recognize Active Duty Military, why don’t they recognize Retired Military. I’ve always preferred Delta, this flight confirmed why I still prefer Delta.

Again, lines for boarding are a problem in iceland. The flight itself was fine and very smooth. No complaints. We would definitely fly icelandair again.

take snacks and food. purchase options in flight are not great

Had a screaming child next to us. Not the airline’s fault but still annoying.

Highly disorganized company, poor customer service. Packed seats on a 737 for a trans-atlantic 9 hour flight. Greedy company policies, no meal or snack provided for 9 hour flight.

Icelandair flight was excellent. The checkin and security arrangements for Saga Premium passengers at Newark was very poor - our checkin opened much later than the normal and our security queue simply led us to the back of the normal queue. Someone was having a laugh surely!

Never took flight. See previous comment on trip from Boston to Reykjavik. Used a different airline that i had to find and book.

The flight was on time and the crew was nice. I did not like the fact that my husband and I were seated in different rows. I feel pressured by airlines to pay more to choose our seats. We will sit anywhere, but we shouldn't have to pay to sit together. I also think they should serve at least a snack that's free.

One of the worst airlines I ever flew. Boarding is a disaster, they are always late, the planes are overly crowded. Everyone on my flight lost their connection because they were 2h late. Reykjavik is also not the best airport out there.

Been travelling for 2mo. And when you meet flight Attendants that love their jobs you can just tell. And makes flying with them worth another flight in the future!!

Good, but I feel there should be a separate boarding line for seniors

Really lovely trip and flight. The flight staff were so accommodating and warm throughout!

Friendly crew who apologised and explained reason for delay. Good on board service. Rather cramped seating. Late departure.

Was not aware that Aer Lingus was like the cut-rate services in the states, with no food or beverage (other then 3.50 Euro coffee) and no screens for entertainment. Was a great flight, but not much in the way of services.

Both flights late. Almost missed connecting flight and flight staff not willing to help expedite us off the plane.

during a very rough flight, I was forced to sit in a last row seat, fell asleep, and was forced to return to my assigned seat after the turbulence. The stewardess then used that seat to sleep.

I didn’t realize Aer Lingus was a “nickel and dime” kind of airline where you had to separately buy all the amenities you wanted. The push to purchase duty-free beauty products was off-putting. And our row had the least amount of leg room I’ve ever dealt with on a flight.

We couldn't talk to aer lingus we had issues with the flight change and aer lingus made us talk to kayak

Very pleasant staff, there was some turbulence but the captain was very apologetic and gave notice where possible.

Flight was great. Had to wait almost 100 minutes for luggage (some problem in the delivery). This may not be an Aer Lingus problem, but an SFO problem.

Loved it! Best airline to fly with. Nice crew, good planes, good food!

Was very unhappy with the entire process, from check in to boarding to the comfort of the flight. Did not enjoy the flight on Level.

Overall a great. However, the seating is way too narrow, for guys with any shoulder width. Luckily the crew moved the guy next to me, or it would have been miserable.

The staff on our flight from Charlotte to Boston were very friendly.

Alaska located my mother, aware that she had mobility issues and they seated her closer to the door. She and I were seated together so I felt more secure to be able to assist her. The desk attendant reviewed what steps to take when boarding. Allowed us to board first, we loved that. I was allowed time to help her board slowly, seat her, put all her things in their place before the crowds came through. These small details made me want to travel Alaska more when possible.

The flight was decent. I purchased my flight through Iberia, traveling with my elderly mother with mobility issues. I try to pay for luggage and seats online prior but Iberia website directs me to AA website. AA airlines website does not recognize the record locator. My mother and I are separated and each get a middle seat. She is seated the furthest away from a bathroom. I had to sit behind her to see her wave at me to use the bathroom. Lights out on the flight and I could not see her wave and she is not tech savvy to push an attendant button even though I showed her how. The attention to this detail puts AA at the bottom of my list when traveling with my elderly mother. Bad execution and handling when servicing those with extra needs due to mobility. I could not get her to the bathroom because she’s slow and she had to wait for me to get up from my middle seat then move her out of her middle seat. She had an accident which required that I hel her clean up before taking her back to her seat.

The flight staff was excellent, one of the best I've had. Food and wine was very good and seats very comfortable. Luggage came out pretty quickly too considering the number of passengers. Also, excellent internet. The only thing that could have been improved on was the choice of movies -- kind of limited and not great selections.

The plane was not well maintained. The entertainment system didn’t work properly, eg moving map. Many of the seat controls did not work. Cabin temperature fluctuated considerably during the flight. The seat allocated was poor, it was noisy and offered no privacy. The perfume in the toilet triggered severe allergies. Crew was very goid.

Seats are too tight. Small space for long flights very inconvenient.

The flight was delayed over 3 hours and at the gate, we waited for an hour to start boarding. The gate lack of communication with the passengers was atrocious and when asked they even said they didn't work there and were just standing in for someone else so they couldn't give us an information about the flight status. The crew did not offer blankets, pillows nor headphones.

I originally chose two aisle seats for my daughter and myself in the same row. We got seated in the middle, three rows apart. Both of the men sitting in front of us reclined their seats fully leaving us NO room. A totally uncomfortable flight for eleven hours.

The seat was very uncomfortable. It helped to use the foot rest. Could not sleep because of the seat.

The seats are incredibly uncomfortable. My luggage didn't make it on the flight from London to Nashville.

The plane itself is old and way overcrowded. The crew do a great job of trying to mitigate. It is just uncomfortable for over 8 hours, bearable, but barely. Boarding, and the baggage game, is ludicrous. Why charge extra to check bags when there is not enough room for everyone to "carry-on" and checking is needed? I do not think these issues would be different with other airlines, I believe it is the attitude that squeezes every penny out of each traveler.

Expected a lot better service paying for a business class seat. Seemed to be short on staff and did not get the service I expected.

I flew Club World and was SHOCKED at how totally absent the crew were for the duration of the flight. So much so that we received no drink service other than the post-departure cocktail and that was it. Wasn't even offered tea/coffee and the in-flight attention was so bad that literally minutes before landing the one crew member for our row was scrambling to pick up left-behind water bottles, glassware, trash. And the rest of the crew had already stowed all carts, he was cramming the trash into the lavatory trash can and was stashing the glassware frantically in the galley as we were on final approach. He was so scrambled he left two overhead lockers wide open (that he'd opened) for landing. Unbelievable!

The flight was several times changed. That was inconvenient, to sah the least.

They lost my special meal request and tried to tell me I didn't request it. I had the proof. Then they tried to get me to eat food I can't eat. No apologies

British airways keeps canceling our flights. I won’t be booking any future flights with them

I could not charge my phone the entire night or read my book, as the whole middle isle was without power.

I will fly again with American airlines. It's efficient to get from A to B point, not too long layovers . Flights were on time, but box food on the long distance flight was dry, stale overcooked.

Book Cheap Illinois Plane Tickets

Recent return flight deals

 
These are the cheapest return flights to Illinois found on KAYAK in the last 72 hours.
22/2Sat
1 stopScandinavian Airlines
13h 30mDUB-ORD
2/3Sun
2 stopsScandinavian Airlines
32h 45mORD-DUB
€336
30/1Thu
1 stopScandinavian Airlines
35h 20mDUB-ORD
6/2Thu
1 stopScandinavian Airlines
31h 45mORD-DUB
€340
16/1Thu
1 stopIcelandair
11h 50mDUB-ORD
22/1Wed
1 stopIcelandair
9h 45mORD-DUB
€383
15/1Wed
1 stopIcelandair
11h 50mDUB-ORD
21/1Tue
1 stopIcelandair
9h 45mORD-DUB
€384
13/1Mon
1 stopBritish Airways
11h 59mDUB-ORD
31/1Fri
2 stopsBritish Airways
24h 20mORD-DUB
€468
31/1Fri
directAer Lingus
8h 35mDUB-ORD
7/2Fri
directAer Lingus
7h 20mORD-DUB
€469
13/1Mon
directAer Lingus
8h 35mDUB-ORD
31/1Fri
directAer Lingus
7h 20mORD-DUB
€471
14/3Fri
1 stopBritish Airways
14h 00mDUB-ORD
18/3Tue
1 stopBritish Airways
11h 25mORD-DUB
€475
10/1Fri
2 stopsUnited Airlines
28h 48mDUB-ORD
24/1Fri
2 stopsUnited Airlines
18h 30mORD-DUB
€573
13/3Thu
1 stopUnited Airlines
16h 39mDUB-ORD
20/3Thu
1 stopUnited Airlines
11h 05mORD-DUB
€581

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Recent one-way flight deals

 
Only flying one-way? Below are some of the best deals for one-way flights to Illinois found on KAYAK in the last 72 hours.
16/1Thu
1 stopIcelandair
11h 50mDUB-ORD
€281
13/1Mon
2 stops
46h 34mDUB-ORD
€289
13/1Mon
3 stops
45h 52mDUB-ORD
€306
16/1Thu
directAer Lingus
8h 35mDUB-ORD
€395
14/1Tue
directAer Lingus
8h 35mDUB-ORD
€399
4/2Tue
1 stopBritish Airways
12h 05mDUB-ORD
€462
17/2Mon
2 stopsBritish Airways
16h 40mDUB-ORD
€467
15/1Wed
2 stopsIberia
38h 55mDUB-ORD
€515
26/12Thu
1 stopIberia
14h 53mDUB-ORD
€556
17/5Sat
3 stopsUnited Airlines
33h 08mDUB-STL
€1,258

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Last minute flights to Illinois

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights to Illinois that are departing in the next 10 days.
22/12Sun
multi-stopIcelandair
11h 50mDUB-ORD
11/1Sat
multi-stopIcelandair
9h 45mORD-DUB
€522
22/12Sun
multi-stopIcelandair
11h 50mDUB-ORD
29/12Sun
multi-stopIcelandair
9h 45mORD-DUB
€604
22/12Sun
multi-stopScandinavian Airlines
33h 45mDUB-ORD
11/1Sat
multi-stopScandinavian Airlines
34h 10mORD-DUB
€618
18/12Wed
multi-stopUnited Airlines
29h 05mDUB-ORD
26/12Thu
multi-stopUnited Airlines
31h 04mORD-DUB
€707
22/12Sun
multi-stopBritish Airways
26h 15mDUB-ORD
29/12Sun
directBritish Airways
7h 20mORD-DUB
€717
22/12Sun
multi-stopUnited Airlines
32h 34mDUB-ORD
29/12Sun
multi-stopUnited Airlines
32h 25mORD-DUB
€733
22/12Sun
multi-stopBritish Airways
26h 15mDUB-ORD
11/1Sat
directBritish Airways
7h 20mORD-DUB
€791
18/12Wed
multi-stopIberia
33h 15mDUB-ORD
22/12Sun
multi-stopIberia
11h 30mORD-DUB
€1,173
18/12Wed
directAer Lingus
8h 35mDUB-ORD
21/12Sat
multi-stopAer Lingus
31h 15mORD-DUB
€1,238
18/12Wed
directAer Lingus
8h 30mDUB-ORD
21/12Sat
multi-stopAer Lingus
11h 15mORD-DUB
€1,248

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Everything you need to know for your flight to Illinois

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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