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Find cheap flights from Chicago O'Hare Airport to Ireland from $273

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 6/4. 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 6/3
Mon 6/10

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Best Ireland Flight Deals

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours

Dublin
Dublin1 stop$423
Shannon
Shannon1 stop$566
Cork
Cork1 stop$567
Knock
Knock1 stop$917

Good to know

Low season

January

High season

September

Cheapest flight

$273
Best time to beat the crowds with an average 28% drop in price.
Most popular time to fly and prices are also 5% 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 travelers 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 round-trip 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

  • Morning departure is around 12% cheaper 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 5 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.
7.4
Scandinavian AirlinesOverall score based on 1432 reviews
8.0Crew
7.7Boarding
7.3Comfort
6.7Entertainment
6.8Food
Airline reviews

TERRIBLE! Staff was unfriendly, rude, and demeaning. One flight attendant touched me to grab the complimentary blanket off my neck because I couldn't take it home, while a bunch of other people took theirs home. I have never been so ill treated. I am not happy at all. And flight was delayed, no information until short notice for everything. Lost an entire day at my destination. I expect a full refund for that experience. Never will fly with them EVER again

2.0 MediocreAnonymous, Apr 2024BOS - CPH
Read more about Scandinavian Airlines reviews

TERRIBLE! Staff was unfriendly, rude, and demeaning. One flight attendant touched me to grab the complimentary blanket off my neck because I couldn't take it home, while a bunch of other people took theirs home. I have never been so ill treated. I am not happy at all. And flight was delayed, no information until short notice for everything. Lost an entire day at my destination. I expect a full refund for that experience. Never will fly with them EVER again

My return flight has been changed to JFK from EWR without any notice or reason

Flight was delayed 3 hours. Pilot cancelled flight under 4 people volunteered to change their seats to economy from business class.

I couldn’t make it to the airport for my original flight due to bad weather; roads were shut down, buses and trains were closed. Since the plane wasn’t cancelled, I still had to pay $720 to change my ticket.

Overall, this flight team did a fantastic job. They came often with the water, coffee and tea. There was no meal choice in coach, but the lasagna lunch was decent. The sandwich snack just before landing was tasty. The baggage bins were large, so no trouble holding carry on luggage.

Good friendly service and food - The seats in business class are old, too hard and not very comfortable.

Last minute cancelation, though a substitute flight was found I could not pick my meal or seat. The hotel offered didn't have working air control or shower.

My seat was not the one I paid for, the crew was very curt, and the cabin was extremely warm.

Old plane with terrible business class seats - good food and service. Boarding was a joke with business class boarding last.

Best airline to travel on a budget- really like their reasonably priced access to the SAS lounges where available.

Great! The plane was decently sized and comfortable. The staff was nice and there was great in flight entertainment

Last minute gate change nearly caused us to miss our flight. Change was not announced or displayed in the main board at the old gate. Terrible communication. When we landed we had to wait 20 minutes because there was another plane at the assigned gate. Not the crew’s fault, but adding 20 minutes to a 45 minute flight sucked.

Nothing beats ANA customer service on my opinion. Maybe because of their Japanese culture (and food). Arigatō

delay several times and wait extra long to board. no entertainment service because there are problem for some rows. always encounter some delays for the last flight of the day.

Flight delayed for 2 hours due to a part. The plane sat waiting for boarding for a long time and during final preflight inspection the issue was found. Why not do the preflight inspection sooner if you know the plane is being used?

The flight experience was very good! Especially the United Club!

I was not able to buy food in the flight. They refer to include your Credit card in the APP, and if you are not from USA (i have a credit card form Canada) it is not possible

Aircraft has better leg room than any of United's larger planes. We had requested mobility assistance for this and related flights. United's response to all was superb.

The flight from Ottawa to Chicago took a lot longer due to DC in Ottawa. We got to Chicago and went to our gate to catch our flight. We only had nine minutes I found that very stressful.

Good boarding. Crew started quick with drinks and food. They came around several times for trash which I really liked. Other than turbulence due to storms in the area, flight was great.

It was spectacular. I had basic Economy and was given so much space and their seats lean back so far. Staff was superb, food was superb, everything was superb, Finnair is Fantastic.

Good flights. Departure and arrivals were on time. DFW was a little problematic in that the Skytrain without prior notice bypassed the Echo terminal so that delayed my arrival at my connecting flight.

Because I can’t stand very long in one place, I was allowed to reword.

We were delayed bc ground crew gave the flight crew the wrong paperwork. We taxiied to the runway then back to the gate to get the correct paperwork that no one bothered reviewing the first time we pushed back. Boarding was rude and stressful like it always is. Gate agents and flight attendants are all over 55 years of age, embittered by years of underpayment From AA leading to their passive agressive bitchiness for no reason.

Boarding time was easy & quick. Crew was excellent. In-flight entertainment was great/easy. Seats are too small and not enough room between rows: felt like a sardine/very cramped.

5 hour flight - full flight - not enough room to use my computer - slightly delayed - Admirals club was excellent quality food, drink made up for flight seating. No food offerred on flight, you ahd to prebook.

Excellent- plan was barely populated. I cannot remember a flight where I was able/encouraged to stretch out!

Great flight. Boarding was efficient and quick. On time departure and smooth flight. Flight arrived early at destination. Good experience.

Had technical issue which delayed the flight period. Flight crew knew there was 5 passengers that the connecting flight was within 15 minutes once at the gate. Rather than identify the 5 passengers to assure they got first. The flight attended mentioned it but didn't assist to assure passengers with connecting flights off first. This caused a hardship and our party of 3 missed the connecting flight.

I don't like that I have to pay if I want extra leg room. The seats are so expensive; I sit in normal seats and my legs and knees cramp the entire flight. I never feel comfortable on AA flights.

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.

I was pleasantly surprised - it has been awhile since I traveled with them - other than being delayed leaving Malaga everything ran very smoothly- yes I would travel with aer Lingus again and yes I would recommended

I loved how they arrange boarding (starting with people seated in back and moving to the front). Flight crew was very polite and welcoming. Seating was ok, I felt like there was enough leg space however it is noticeable when the passenger in front of you sets their seat back.

Flight staff very friendly and helpful where possible. Late flight and travelling with young child, cabin lights remained on for the duration of the flight which was a little disappointing considering the time of the flight. Overall very happy to travel with Aer Lingus.

Nice to be on a flight that wasn't fully booked so there were only two of us in the three seat row.

The only problem was there are games on the entertaiment system. The guy behind me played poker the entire time and poking the back of my seat. I hope they remove these.

Delayed due to weather... fine. But then the board us. Rows 15 and back had to go down the stairs and back up the back stair entrance to the plane. No assistance offered. Then they inform us that we are delayed for paperwork for an hour. So why did we board? Then, about 45min later they inform us that it'll be another 60-90mins. Really? No wifi, no seat entertainment, no drink or snacks offered. And we were not allowed to deboard.

Great travel. Wonderful experience. Hope to do it again in the near future. God willing

Aer Lingus doesn't have plug ins for devices at each seat. They also did not give me a dairy free meal as requested and confirmed by staff. It was as if I had not requested anything. Otherwise, they were great!

There were a lot of empty rows. As a single passenger I should not have been seated with 2 others. The WiFi didn’t work. The Kosher meal was awful.

Very nice flight, easy connections in Keflavík, and friendly crew.

I will never fly this airline again. Checking in was poor , we had to go back to the check in counter at Raleigh - Durham international airport three times because they didn’t issue my boarding pass but rather duplicated my husband’s twice which caused a big headache at the passport control at the airport which triggered security alert and wouldn’t let us pass through we we had to wait for long time to be able to explain and clear everything after talking to the supervisor.. No food on the plane , not even crackers. No food was offered to buy ether . No ear phone was provided . Very little time to make from one plane to another and nobody to assist with smooth transition. Flight itself , we felt safe so thank you to the pilots . But customer service was terrible . We spent $ 2500 on 2 tickets, so I cannot say that service was consistent with the price .

Seats are way too much now with these new airplanes especially long flights like we had. I was 7 month pregnant and in a lot of discomfort due to small seats.

Food was horrible. This wasn’t business class. No leg space, can’t sleep in row position, huge delay

I liked how easy my transfers between flights in Keflavik were. I would have appreciated more food options in Keflavik.

The plane was flaming hot! Could not breathe. Everyone coughing from heat. Awful.

My biggest problem was the flight from KEF to DUB was delayed, which caused me to miss my connecting flight in DUB and we were forced into an unplanned 10-hour layover in DUB. Crew and boarding staff were all very friendly but this was a real inconvenience and especially uncomfortable for my disabled wife.

Not much! This was my first flight with Iceland air and unfortunately it wasn’t what I have expected. My luggage is lost nothing as of yet where it was left. Not a good service at all!!

The seat size was more like a domestic than an international flight. In fact, i would compare the ammenities, quality and service to a short hall ryan air flight, which was unexpected for an international flight. The plane was extremely hot so sleeping was difficult. My biggest complaint was that they are very strict on carry on luggage only allowing it to weigh 10kg/22lb. I try to limit myself to a carryon so i don't have to mess with bagage claim, but the wieght restriction made it impossible. I have never had a carry on weight restriction (at least enforced) on an international flight. Will not be including them in future searches.

Pros: "Easy flight, and boarded in the front and back of the plane. Made it easier and faster to get on."
Cons: "They aren’t too clear in baggage charges. I got standard fare, but still had to pay for my checked bag for both ways."

Book cheap flights from Chicago to Ireland

Recent round-trip flight deals

10/21Mon
1 stopTAP AIR PORTUGAL
18h 10mORD-DUB
10/29Tue
1 stopTAP AIR PORTUGAL
28h 35mDUB-ORD
$423
10/23Wed
1 stopScandinavian Airlines
34h 05mORD-DUB
11/4Mon
2 stopsScandinavian Airlines
35h 30mDUB-ORD
$428
9/8Sun
nonstopUnited Airlines
7h 40mORD-DUB
9/18Wed
1 stopUnited Airlines
10h 20mDUB-ORD
$556
10/21Mon
1 stopAmerican Airlines
11h 00mORD-DUB
10/30Wed
1 stopAmerican Airlines
12h 45mDUB-ORD
$563
9/3Tue
1 stopAmerican Airlines
20h 20mORD-SNN
9/10Tue
1 stopAmerican Airlines
25h 35mSNN-ORD
$566
9/11Wed
1 stopUnited Airlines
11h 23mORD-SNN
9/17Tue
nonstopUnited Airlines
8h 15mSNN-ORD
$571
8/19Mon
nonstopAer Lingus
7h 30mORD-DUB
8/29Thu
nonstopAer Lingus
8h 25mDUB-ORD
$596
8/19Mon
nonstopAer Lingus
7h 30mORD-DUB
8/27Tue
nonstopAer Lingus
8h 25mDUB-ORD
$597
8/5Mon
1 stopIcelandair
30h 50mORD-DUB
8/19Mon
1 stopIcelandair
33h 25mDUB-ORD
$641
9/13Fri
1 stopIcelandair
9h 40mORD-DUB
10/23Wed
1 stopIcelandair
12h 05mDUB-ORD
$653

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Recent one-way flight deals

6/4Tue
2 stops
25h 46mORD-DUB
$273
6/4Tue
3 stops
34h 30mORD-DUB
$286
7/31Wed
1 stopIcelandair
9h 35mORD-DUB
$346
7/22Mon
1 stopIcelandair
9h 40mORD-DUB
$362
7/20Sat
2 stopsAer Lingus
16h 10mORD-SNN
$427
7/22Mon
nonstopAer Lingus
7h 30mORD-DUB
$467
9/5Thu
nonstopUnited Airlines
7h 40mORD-DUB
$532
9/5Thu
nonstopAmerican Airlines
7h 30mORD-DUB
$547
6/4Tue
1 stopAmerican Airlines
18h 05mORD-SNN
$924
6/17Mon
nonstopUnited Airlines
7h 25mORD-SNN
$3,853

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Last minute flights from O'Hare Intl to Ireland

Last minute flight, train and bus deals

5/6Mon
nonstopAer Lingus
7h 30mORD-DUB
5/16Thu
nonstopAer Lingus
8h 25mDUB-ORD
$773
5/6Mon
nonstopAer Lingus
7h 30mORD-DUB
5/12Sun
nonstopAer Lingus
8h 25mDUB-ORD
$783
5/4Sat
multi-stopScandinavian Airlines
14h 20mORD-DUB
5/15Wed
multi-stopScandinavian Airlines
28h 50mDUB-ORD
$827
5/7Tue
multi-stopIcelandair
9h 35mORD-DUB
5/14Tue
multi-stopIcelandair
12h 05mDUB-ORD
$830
5/5Sun
multi-stopScandinavian Airlines
16h 30mORD-DUB
5/11Sat
multi-stopScandinavian Airlines
36h 55mDUB-ORD
$852
5/7Tue
multi-stopIcelandair
9h 35mORD-DUB
5/23Thu
multi-stopIcelandair
12h 00mDUB-ORD
$915
5/8Wed
nonstopUnited Airlines
7h 50mORD-DUB
5/21Tue
nonstopUnited Airlines
8h 30mDUB-ORD
$950
5/8Wed
multi-stopAmerican Airlines
12h 20mORD-DUB
5/15Wed
multi-stopAmerican Airlines
12h 15mDUB-ORD
$951
5/6Mon
multi-stopUnited Airlines
12h 00mORD-DUB
5/16Thu
nonstopUnited Airlines
8h 30mDUB-ORD
$954
5/8Wed
nonstopAmerican Airlines
7h 30mORD-DUB
5/19Sun
nonstopAmerican Airlines
8h 25mDUB-ORD
$1,569

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Chicago O'Hare Airport - Ireland Flights

Departure:

Chicago O'Hare Airport (ORD)United States

Return flight deals:

Ireland - Chicago O'Hare Airport

Cabin classes:

$2,504
$1,583
$544