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Find cheap flights from Chicago O'Hare Airport to Ireland from €254

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 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
Mon 3/6
Mon 10/6

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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€385
Cork
Cork1 stop€570
Shannon
Shannon1 stop€526
Knock
Knock1 stop€853
Donegal
Donegal1 stop€1,096

Good to know

Low season

January

High season

September

Cheapest flight

€254
Best time to beat the crowds (17% less expensive on average)
Most popular time to fly and prices are also 8% 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

  • Morning departure is around 13% 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 airline flying 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.
7.2
Aer LingusOverall score based on 1341 reviews
8.0Crew
7.3Boarding
7.1Comfort
7.0Entertainment
6.6Food
Airline reviews

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.

8.0 ExcellentWeezie, May 2024ORD - DUB
Read more about Aer Lingus reviews

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.

Book cheap flights from Chicago to Ireland

Recent return flight deals

21/10Mon
1 stopTAP AIR PORTUGAL
34h 00mORD-DUB
29/10Tue
1 stopTAP AIR PORTUGAL
28h 35mDUB-ORD
€385
21/10Mon
1 stopTAP AIR PORTUGAL
18h 10mORD-DUB
29/10Tue
1 stopTAP AIR PORTUGAL
28h 35mDUB-ORD
€393
23/10Wed
1 stopScandinavian Airlines
34h 05mORD-DUB
4/11Mon
2 stopsScandinavian Airlines
35h 30mDUB-ORD
€398
23/10Wed
2 stopsScandinavian Airlines
18h 15mORD-DUB
4/11Mon
2 stopsScandinavian Airlines
35h 30mDUB-ORD
€401
29/5Wed
3 stops
33h 35mORD-DUB
5/6Wed
3 stops
28h 26mDUB-ORD
€509
2/9Mon
1 stop
31h 05mORD-DUB
4/12Wed
1 stop
32h 59mDUB-ORD
€515
8/9Sun
directUnited Airlines
7h 40mORD-DUB
18/9Wed
1 stopUnited Airlines
10h 20mDUB-ORD
€517
11/9Wed
1 stopUnited Airlines
11h 23mORD-SNN
17/9Tue
directUnited Airlines
8h 15mSNN-ORD
€531
19/8Mon
directAer Lingus
7h 30mORD-DUB
29/8Thu
directAer Lingus
8h 25mDUB-ORD
€554
19/8Mon
directAer Lingus
7h 30mORD-DUB
27/8Tue
directAer Lingus
8h 25mDUB-ORD
€555

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Recent one-way flight deals

4/6Tue
2 stops
25h 46mORD-DUB
€254
4/6Tue
3 stops
34h 30mORD-DUB
€266
31/7Wed
1 stopIcelandair
9h 35mORD-DUB
€322
28/9Sat
1 stopTAP AIR PORTUGAL
24h 05mORD-DUB
€334
22/7Mon
1 stopIcelandair
9h 40mORD-DUB
€337
12/9Thu
1 stopLufthansa
18h 50mORD-DUB
€344
23/9Mon
1 stopTAP AIR PORTUGAL
18h 10mORD-DUB
€386
20/7Sat
2 stopsAer Lingus
16h 10mORD-SNN
€397
22/7Mon
directAer Lingus
7h 30mORD-DUB
€434
5/10Sat
2 stopsLufthansa
14h 00mORD-DUB
€538

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Last minute flights from O'Hare Intl to Ireland

Last minute flight, train and bus deals

6/5Mon
directAer Lingus
7h 30mORD-DUB
16/5Thu
directAer Lingus
8h 25mDUB-ORD
€719
6/5Mon
directAer Lingus
7h 30mORD-DUB
12/5Sun
directAer Lingus
8h 25mDUB-ORD
€728
8/5Wed
multi-stopTAP AIR PORTUGAL
18h 05mORD-DUB
21/5Tue
multi-stopTAP AIR PORTUGAL
27h 15mDUB-ORD
€763
4/5Sat
multi-stopScandinavian Airlines
14h 20mORD-DUB
15/5Wed
multi-stopScandinavian Airlines
28h 50mDUB-ORD
€769
7/5Tue
multi-stopIcelandair
9h 35mORD-DUB
14/5Tue
multi-stopIcelandair
12h 05mDUB-ORD
€772
8/5Wed
multi-stopTAP AIR PORTUGAL
24h 05mORD-DUB
21/5Tue
multi-stopTAP AIR PORTUGAL
27h 15mDUB-ORD
€784
5/5Sun
multi-stopScandinavian Airlines
16h 30mORD-DUB
11/5Sat
multi-stopScandinavian Airlines
36h 55mDUB-ORD
€792
4/5Sat
multi-stop
22h 50mORD-DUB
15/5Wed
multi-stop
34h 10mDUB-ORD
€812
7/5Tue
multi-stopIcelandair
9h 35mORD-DUB
23/5Thu
multi-stopIcelandair
12h 00mDUB-ORD
€851
6/5Mon
multi-stop
32h 05mORD-DUB
12/5Sun
multi-stop
32h 35mDUB-ORD
€854

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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:

€2,419
€449