€228 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 21/1. 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.
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Best Ireland Flight Deals from O'Hare Intl

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

Dublin
Dublin1 stop€382
Cork
Cork1 stop€564
Shannon
Shannon1 stop€546
Knock
Knock2 stops€742
Donegal
Donegal2 stops€635
Milltown (Kerry)
Milltown (Kerry)1 stop€601

Good to know

Low season

January

High season

September

Cheapest flight

€228
Best time to beat the crowds (16% less expensive on average)
Most popular time to fly and prices are also 18% 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 from Chicago O'Hare Airport to Ireland 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 from Chicago O'Hare Airport to Ireland with an airline and back 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 from Chicago O'Hare Airport to Ireland 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

  • Book at least 1 week before departure in order to get a below-average price.
  • High season is considered to be May, June and July. The cheapest month to fly from Chicago is February.
  • Morning departure is around 17% more expensive than an evening flight, on average*.
*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 1344 reviews
7.2Entertainment
7.3Food
7.9Boarding
7.7Comfort
8.4Crew
Airline reviews

Great boarding, great short flight but no entertainment whatsoever and no wifi. Prepare to disembark by a staircase.

10.0 ExcellentAnonymous, Dec 2024BRU - AMS
Read more KLM reviews

Great boarding, great short flight but no entertainment whatsoever and no wifi. Prepare to disembark by a staircase.

Transfer at CDG to connecting KLM flight to Amsterdam was a NIGHTMARE. LONG WALKWAYS, NO MOVING WALKWAYS, POOR signage, Have to take a train & No staff visible to help navigate the maze. AVOID TRANSFER AT CDG AT ALL COST.

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.

Seats were nice and comfy. Crew was polite and attentive. Business class is awesome and worth the money.

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.

The baggage service at Malpensa was the worst ever. We wanted for over an hour without any information, they broke my suitcase, and the services of the local luggage services company was below any usual services level of a KLM partner.

The meals were mediocre and the alcohol selection was poor. I enjoyed the selection of movies and other entertainment.

I chatted with the captain before the flight, and similarly during the welcome announcement, he warned of a turbulent flight that may impact the in-flight service. However, once at altitude, he announced that the weather changed and he immediately turned off the seatbelt sign. But it appeared the cabin crew had already decided to take off this flight. They remained seated and then just chatted in the galley. The flight was fully catered, but only first class received service.

My flight attendant was attentive! The elderly person next to me was flatulent and the flight attendant could see that I was in distress and brought me some face masks

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.

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.

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

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.

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.

No land services during boarding, specially while moving from terminal to another

My flight was late. We stayed in aircraft one hour 😩

Flight delay and can’t much help passenger do the change connecting flight.

Even the carry-ons were not allowed and upon getting down, we had the wait for the longest time for the baggage to put on the jet aisle. We had a short connection which British Airways kept changing and made out entire experience poor. I would never fly BA again.

5 days later I have not yet received my luggage so terrible and unacceptable

Easy and quick check in, clean and nice seats. Overall excellent experience.

The seats in airbus from LA to London are uncomfortable. They are too narrow. I am a slim person but felt cramped. The way the seats are laid out really hinders privacy. You are forced to look at the person next to you which is awkward, Also the entertainment on the same leg was limited. The crew was excellent and attentive and the food was decent. The seats on London to Delhi leg were way better. The crew again was very attentive and polite.

Great job notifying of 30 minute delay in departure. Fabulous job making up for the time and arriving as scheduled. Air travel is just no fun anymore with the extreme overcrowding, and someone needs to come up with an innovative plan for loading and unloading passengers (load all window seats first, middle seats second, aisle seats last?). Great job getting the luggage on the carousel in record time!

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 .

Book cheap flights from Chicago to Ireland

Recent return flight deals

19/1Sun
1 stopTAP AIR PORTUGAL
13h 45mORD-DUB
21/1Tue
1 stopTAP AIR PORTUGAL
28h 35mDUB-ORD
€382
3/2Mon
1 stopIcelandair
9h 45mORD-DUB
10/2Mon
1 stopIcelandair
11h 50mDUB-ORD
€389
20/1Mon
directAer Lingus
7h 20mORD-DUB
29/1Wed
directAer Lingus
8h 35mDUB-ORD
€507
19/1Sun
directAer Lingus
7h 15mORD-DUB
24/1Fri
directAer Lingus
8h 35mDUB-ORD
€512
20/1Mon
1 stopAmerican Airlines
10h 40mORD-DUB
29/1Wed
1 stopAmerican Airlines
11h 59mDUB-ORD
€529
19/1Sun
1 stopAmerican Airlines
10h 55mORD-SNN
28/1Tue
1 stopAmerican Airlines
13h 00mSNN-ORD
€546
17/1Fri
1 stopBritish Airways
11h 20mORD-DUB
24/1Fri
1 stopBritish Airways
14h 00mDUB-ORD
€555
19/1Sun
1 stopKLM
14h 30mORD-ORK
4/2Tue
1 stopKLM
31h 05mORK-ORD
€564
19/2Wed
1 stopKLM
23h 25mORD-ORK
26/2Wed
1 stopKLM
14h 30mORK-ORD
€567
4/2Tue
2 stopsBritish Airways
33h 30mORD-NOC
11/2Tue
1 stopBritish Airways
30h 55mNOC-ORD
€835

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Recent one-way flight deals

21/1Tue
2 stops
21h 53mORD-DUB
€228
4/2Tue
2 stops
35h 53mORD-DUB
€238
22/1Wed
1 stopIcelandair
9h 45mORD-DUB
€288
23/2Sun
1 stopIcelandair
9h 45mORD-DUB
€300
4/2Tue
2 stopsBritish Airways
24h 20mORD-DUB
€379
20/1Mon
1 stopBritish Airways
10h 50mORD-DUB
€386
13/3Thu
1 stopAmerican Airlines
12h 55mORD-DUB
€427
20/1Mon
directAer Lingus
7h 20mORD-DUB
€465
14/4Mon
2 stopsAer Lingus
13h 35mORD-SNN
€480
8/1Wed
directAmerican Airlines
7h 20mORD-DUB
€487

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Last minute flights from O'Hare Intl to Ireland

Last minute flight, train and bus deals

23/12Mon
multi-stopUnited Airlines
57h 35mORD-DUB
17/1Fri
multi-stopUnited Airlines
39h 38mDUB-ORD
€784
25/12Wed
multi-stop
28h 45mORD-DUB
29/12Sun
multi-stop
13h 40mDUB-ORD
€820
26/12Thu
multi-stopKLM
13h 45mORD-DUB
29/12Sun
multi-stopKLM
15h 50mDUB-ORD
€821
25/12Wed
multi-stopDelta
18h 50mORD-DUB
29/12Sun
multi-stopDelta
20h 02mDUB-ORD
€834
23/12Mon
multi-stopBritish Airways
20h 35mORD-DUB
17/1Fri
multi-stopBritish Airways
16h 05mDUB-ORD
€872
23/12Mon
multi-stopBritish Airways
13h 35mORD-DUB
11/1Sat
multi-stopBritish Airways
24h 10mDUB-ORD
€918
23/12Mon
multi-stopBritish Airways
18h 05mORD-DUB
11/1Sat
multi-stopBritish Airways
27h 03mDUB-ORD
€933
23/12Mon
multi-stopAer Lingus
9h 48mORD-DUB
11/1Sat
directAer Lingus
8h 35mDUB-ORD
€1,319
23/12Mon
directAer Lingus
7h 20mORD-DUB
11/1Sat
multi-stopAer Lingus
13h 15mDUB-ORD
€1,325
22/12Sun
multi-stopAmerican Airlines
31h 45mORD-SNN
31/12Tue
multi-stopAmerican Airlines
26h 04mSNN-ORD
€1,954

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

Information on your arrival and departure airports

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