€218 Find cheap flights from Chicago O'Hare Airport to Ireland

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from O'Hare Intl to Ireland departing on 20/1. 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

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Best Ireland Flight Deals

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

Dublin
Dublin1 stop€336
Cork
Cork2 stops€553
Shannon
Shannon1 stop€519
Knock
Knock1 stop€759
Donegal
Donegal2 stops€943
Milltown (Kerry)
Milltown (Kerry)1 stop€990

Good to know

Low season

January

High season

September

Cheapest flight

€218
Best time to beat the crowds (13% less expensive on average)
Most popular time to fly and prices are also 19% lower on average.
Flight from Chicago O'Hare Airport to Dublin

FAQs - booking Ireland flights

  • How does KAYAK find such low prices on flights from Chicago O'Hare Airport to Ireland?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Chicago O'Hare Airport to Ireland.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Chicago O'Hare Airport to Ireland?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Ireland from Chicago O'Hare Airport is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Chicago O'Hare Airport to Ireland?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to Ireland with an airline and back to Chicago O'Hare Airport with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Chicago O'Hare Airport to Ireland?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Ireland from Chicago O'Hare Airport up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top tips for finding cheap flights to Ireland

  • On average*, there is no price difference when choosing to fly in the morning or the evening on this flight route.
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

Top 4 airlines serving from O'Hare Intl to Ireland

Need help choosing which airline to fly with from O'Hare Intl to Ireland? 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.
7.8
KLMOverall score based on 1350 reviews
7.7Comfort
8.4Crew
7.3Food
7.9Boarding
7.2Entertainment
Airline reviews

I tried to upgrade to premium economy anis seat online during the checkin process. The payment didn’t work due to a technical glitch on KLM’s website. I wasn’t able to change my seat unless I called Amsterdam. Since I was in Canada and there’s a time difference this wasn’t practical. So when I arrived early to Ottawa airport my seat wasn’t available and I could only get a middle seat in premium economy which isn’t great. These middle seats are priced at the same rate as an aisle seat which makes no sense.

8.0 ExcellentShereen, Oct 2024YOW - CDG
Read more KLM reviews

I tried to upgrade to premium economy anis seat online during the checkin process. The payment didn’t work due to a technical glitch on KLM’s website. I wasn’t able to change my seat unless I called Amsterdam. Since I was in Canada and there’s a time difference this wasn’t practical. So when I arrived early to Ottawa airport my seat wasn’t available and I could only get a middle seat in premium economy which isn’t great. These middle seats are priced at the same rate as an aisle seat which makes no sense.

Seats were comfortable crew members support was very good but AVML ordered or selected by us needs a lot of improvement.

Transavia flight, was booked as KLM but i couldnt select seat or access boarding pass with KLM at all. Crammed seating and very no frills experience all around. First and last time.

Transavia flight. Couldn't select seat or anything prior to flight. No connection with klm systems. Seats are very crammed. Extremely no frills.

Flight left a few minutes late, but that's it. I wish the seats could be wider and recline more.

The IFE was quite old, but it worked fine and the content was good. The cabin crew were excellent and the food was as also very good

It’s chaotic at the bus stop outside of the airport because of the Uber meeting point. You need to be alert and look for the KLM bus which is not branded or labeled. Incorrect information was provided to go to gate 28, when in fact the bus was at gate 27. On the plus side the bus left early and arrived early to Ottawa.

Great flight because I upgraded to Premium Comfort. Made a huge difference in the experience.

The flight was great, the only reason for middle scores on entertainment and food is that it was a short flight so not included (but snacks were served including alcoholic beverages free of charge). I would definitely recommend KLM.

The plane. Airbus A330-200. Comfortable for a 7-hour flight. Seats seemed to have more legroom. I was in row 17. Flight was operated by Delta but was better than expected.

My boarding pass wouldn't pull up in the app very easily and had to really dig through my email. That caused a delay in TSA..

I had a TERRIBLE experience with the AA crew. I believe it was disability-related. It’s unlikely I will fly AA again.

Baby cried a lot. Nothing anyone could do about it. Just part of flying.

The flight crew was fantastic! Which the seats had a small TV.

The flight was delayed till next day ! They kept delaying every 30 minutes then after 3 hours they delayed it till next day. We kept waiting in line standing more than an hour to get the hotel and meal vouchers. There was no communication at all. Everything was bad

Smoothe flight. Pilot and crew did a great job. Uncomfortable seat in this jet, felt worn out

seats were way too small. Too short of a flight to offer amenities.

The main problem was delay. The plane was at the gate early and bags were loaded. However, there was no crew for the flight. They were inbound from LGA and had to land and make their way to our gate. It took more than 40 minutes. Then, once the crew arrived and boarded, one of the crew members had to deplane and then a replacement crew member had to be found. It took another 40 minutes or so to get the final crew member. In all, we took off about 2 hours later than our scheduled departure time. Once in the air, the flight was great. Smooth most of the way. The crew was professional and efficient.

Perfect flight. Efficient boarding, on time take off and early arrival. Generally smooth flight.

American is a steady for me. I always get what I expect from them. Sincere effort to get me from one place to another.

Very sad, couldn't stop crying. Was an hour delay in Ireland and when we got to Canada the flight was boarded and couldn't get on. Was the last flight of the day. Now in a hotel waiting on a stand by.I have to got o work, so I'll go first available while my son stays in the hotel til one's available

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.

Amenity kits were never handed out. There was zero friendliness and assistance by crew. Food was uneatable. One drink was offered and no wine, with dinner or before or after. Cocktails and beverages were not encouraged and when I asked for water, none was given. Poorest, most cramped business class flight I’ve ever been on.

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

Probably my favorite airline and way to go to Europe. Everything went smoothly! Food was tasty, crew was pleasant. Really cannot complain!

Golf Bags never made it on the flight. Very expensive golf bag and. Clubs,shoes, clothing. Will file a claim against Aer Lingus

Horrible. Garbage airline. Due to the strike we got a replacement plane/crew. I didn't get my exit row seat I paid for. Food was horrible. Plane was hot and didn't have AC vents.

The first leg of my 2 flights were delayed, causing me to miss my second flight and have to stay the whole night in Dublin. Super upset with this experience, and I still need to figure out how to get compensated for this.

Everything went well, but could have used a bit more legroom.

Although it was an overnight flight, the crew could’ve have made more refreshment passes.

All and it was good . But no one woke me when meals came around . Please have a don’t not disturb sign if you opted for that . Left very hungry missing all meals .

It was good but I wished if they could have sign do not disturb if we did not wanted any meals . I was tired and slept through the entire flight and woke up just before landing .being hungry Too late to ask for something to eat before exiting the flight . Left feeling hunger 🙁

Late in leaving the US. Late in arriving in UK. 2 plua hous on ground in UK before leaving. Late in arriving in Spain. Didn't get our bags until the next night.

British Airways canceled my flight and I had to fly on Lufthansa the next day. What a garbage airline 🗑️

3 hr delay. No water given while on the plane for 3hrs.

No fast track available, no organisation. Unpleasant boarding system at gate 20 at JFK. When giving feedback to the lounge team I was told to talk to the manager instead of taking the feedback.

The whole experience was great. The only improvement would be the entertainment selection

Flight attendant kept banging her cart into my aisle seat. Hard. Couldn’t lean seat back. Should be warned of limitations when booking seat

I will travel by BA only in future also. Only suggestion is they should give aisle seat in front near washroom for senior citizens

Book cheap flights from Chicago to Ireland

Recent return flight deals

31/1Fri
1 stopTAP AIR PORTUGAL
13h 50mORD-DUB
11/2Tue
1 stopTAP AIR PORTUGAL
28h 35mDUB-ORD
€336
17/1Fri
1 stopTAP AIR PORTUGAL
13h 50mORD-DUB
23/1Thu
1 stopTAP AIR PORTUGAL
17h 05mDUB-ORD
€338
3/3Mon
directAer Lingus
7h 20mORD-DUB
5/3Wed
directAer Lingus
8h 30mDUB-ORD
€454
11/2Tue
directAer Lingus
7h 20mORD-DUB
11/3Tue
directAer Lingus
8h 30mDUB-ORD
€477
12/1Sun
1 stopBritish Airways
10h 50mORD-DUB
22/1Wed
1 stopBritish Airways
11h 45mDUB-ORD
€518
13/1Mon
1 stopAmerican Airlines
12h 45mORD-SNN
24/1Fri
1 stopAmerican Airlines
13h 00mSNN-ORD
€519
13/1Mon
1 stopAmerican Airlines
15h 25mORD-SNN
24/1Fri
2 stopsAmerican Airlines
17h 41mSNN-ORD
€528
19/3Wed
1 stopKLM
14h 30mORD-ORK
31/3Mon
1 stopKLM
27h 10mORK-ORD
€566
19/3Wed
1 stopKLM
14h 30mORD-ORK
30/3Sun
1 stopKLM
27h 10mORK-ORD
€579
18/3Tue
2 stopsBritish Airways
13h 36mORD-SNN
23/3Sun
1 stopBritish Airways
23h 50mSNN-ORD
€745

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Recent one-way flight deals

20/1Mon
2 stops
44h 37mORD-DUB
€218
19/1Sun
2 stops
34h 55mORD-DUB
€251
20/1Mon
1 stopIcelandair
9h 45mORD-DUB
€252
19/1Sun
1 stopIcelandair
9h 45mORD-DUB
€257
26/11Tue
1 stopBritish Airways
13h 15mORD-DUB
€373
11/2Tue
1 stopAmerican Airlines
13h 05mORD-DUB
€375
27/11Wed
2 stopsBritish Airways
20h 07mORD-DUB
€377
13/3Thu
1 stopAmerican Airlines
11h 35mORD-DUB
€412
20/1Mon
directAer Lingus
7h 20mORD-DUB
€450
31/12Tue
directAer Lingus
7h 20mORD-DUB
€458

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Last minute flights from O'Hare Intl to Ireland

Last minute flight, train and bus deals

25/11Mon
multi-stopIcelandair
9h 45mORD-DUB
6/12Fri
multi-stopIcelandair
11h 50mDUB-ORD
€676
25/11Mon
directAer Lingus
7h 20mORD-DUB
6/12Fri
multi-stopAer Lingus
21h 22mDUB-ORD
€702
24/11Sun
multi-stopBritish Airways
11h 20mORD-DUB
5/12Thu
multi-stopBritish Airways
14h 15mDUB-ORD
€740
24/11Sun
multi-stopDelta
19h 15mORD-DUB
6/12Fri
multi-stopDelta
11h 40mDUB-ORD
€749
23/11Sat
multi-stop
31h 00mORD-DUB
5/12Thu
multi-stop
27h 35mDUB-ORD
€757
25/11Mon
multi-stop
28h 45mORD-DUB
2/12Mon
multi-stop
30h 25mDUB-ORD
€779
23/11Sat
multi-stopDelta
19h 10mORD-DUB
5/12Thu
multi-stopDelta
24h 04mDUB-ORD
€782
23/11Sat
multi-stopBritish Airways
10h 50mORD-DUB
4/12Wed
multi-stopBritish Airways
11h 45mDUB-ORD
€874
21/11Thu
multi-stopAmerican Airlines
20h 10mORD-DUB
28/11Thu
directAmerican Airlines
8h 30mDUB-ORD
€1,059
21/11Thu
multi-stopAmerican Airlines
9h 55mORD-DUB
28/11Thu
directAmerican Airlines
8h 30mDUB-ORD
€1,060

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Everything you need to know for your flight from O'Hare Intl to Ireland

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