€243 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 12/3. 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€378
Cork
Cork1 stop€503
Shannon
Shannon1 stop€546
Knock
Knock2 stops€692
Donegal
Donegal2 stops€704
Milltown (Kerry)
Milltown (Kerry)1 stop€836

Good to know

Low season

January

High season

September

Cheapest flight

€243
Best time to beat the crowds (27% less expensive on average)
Most popular time to fly and prices are also 17% 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 21% 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 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 1341 reviews
7.8Boarding
7.7Comfort
8.4Crew
7.3Food
7.2Entertainment
Airline reviews

Overall very poor. Flight was disorganised, staff were rude and this is my second experience with KLM that I've had baggage go missing. It feels like, if you are an economy customer, KLM staff do not show you any care. I shall never fly with KLM again. Worst airline in Europe

2.0 Mediocrejack, Jan 2025CPT - AMS
Read more KLM reviews

Overall very poor. Flight was disorganised, staff were rude and this is my second experience with KLM that I've had baggage go missing. It feels like, if you are an economy customer, KLM staff do not show you any care. I shall never fly with KLM again. Worst airline in Europe

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.

This particular flight wasn't very full at the back, so there were three seats available for spreading out and getting relatively comfortable

Most of the delay was due to weather which is not what was at issue here. One delay was due to a missing flashlight and in the end the flashlight was actually found on the plane. The entertainment system is very limited. Live TV options offer only a few channels that are not very appealing. Boarding and deplaning are always difficult. It just takes too much time to get on and off the plane. On the plus side, I missed my connecting flight, but was easily able to book a later flight from the app while enroute.

You were more on time than United. I'm so over united delays.

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.

My Aer Lingus flight (booking ref # 2SU4LF) was the worst travel experience I have ever dealt with. My flight from Paris to Dublin was delayed by over 2 hours which caused me to miss my connecting flight back to the US. I was not able to be rebooked on a new flight for another 3 days. When I finally made it on my rescheduled flight, it was delayed AGAIN, causing me to miss my connecting flight from New York to Boston. At this point I decided to just rent a car since the next flight I would have been able to get in wasn’t for another 5 hours. It was a complete nightmare experience and I will never fly Aer Lingus again. I have requested a refund from the booking company I placed my order with.

They couldn't do through check-in for us. They took 2 hours to issue just one leg of the boarding pass. They had no idea to handle the case of passengers who travels to USA via Dublin airport. we had tough time time Dublin airport as boarding pass for the US flight was not pre-issued. Hope Aer Lingus will learn to handle such cases which they couldn't learn in in the past 50 years of the service.

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

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

Boarding in Dallas was hell with extremely rude gate agents , especially a lady named Rajathi who was the epitome of rudeness with no compassion at all . She was horrible and I wonder why airlines have people like her on their roster who exude arrogance and haughtiness . Will probably not fly British Airwsys because of people like her .

Less than average, low level of shared required information needed during the transfer from airport to another, also the used team during boarding In Indianapolis station is Not Professional

Aer Lingus was the actual airline so they handled everything professionally.

Food was average. Better headphones seats were average at best.

Nice flight. Legroom was good. Food was good. Staff was friendly and helpful. Plane was modern and clean. Seats and headrests were comfortable. Entertainment system was good and modern, with a bright LCD screen and many appealing choices.

I have something to say about the flight I took from London to Gothenburg, after my flight from Austin to London. I fly a lot and have done so for decades. I first flew to Scandinavia in 1973. My former wife is Norwegian. The main thing was the experience at the Gothenburg airport. Three flights from Britain arrived around the same time. So there were huge lines at immigration since Brits are no longer a part of the EU. After over an hour in line, I finally gave my passport to the immigrations man. You’d have thought I was an Afghan. I just barely got into Sweden. I had to answer all kinds of blunt questions. I had to show all kinds of onward tickets, addresses of places I’d be staying and it was pretty daunting. Perhaps it has to do with the situation with Russia. British Air might have done something to prepare people that things have changed a lot and they’d better be ready to run the gauntlet when trying to get into the country here. Thanks for listening and taking this into consideration. Sincerely, a senior citizen of the USA

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.

Book cheap flights from Chicago to Ireland

Recent return flight deals

21/2Fri
1 stopTAP AIR PORTUGAL
13h 50mORD-DUB
1/3Sat
1 stopTAP AIR PORTUGAL
17h 15mDUB-ORD
€378
7/5Wed
1 stopTAP AIR PORTUGAL
18h 05mORD-DUB
20/5Tue
1 stopTAP AIR PORTUGAL
27h 20mDUB-ORD
€381
4/3Tue
directAer Lingus
7h 20mORD-DUB
11/3Tue
directAer Lingus
8h 35mDUB-ORD
€420
4/3Tue
directAer Lingus
7h 20mORD-DUB
11/3Tue
directAer Lingus
8h 35mDUB-ORD
€425
4/3Tue
1 stopKLM
12h 45mORD-DUB
11/3Tue
1 stopKLM
15h 41mDUB-ORD
€443
4/3Tue
1 stopKLM
12h 46mORD-DUB
11/3Tue
1 stopKLM
11h 58mDUB-ORD
€444
18/2Tue
1 stopBritish Airways
10h 40mORD-DUB
24/2Mon
1 stopBritish Airways
23h 25mDUB-ORD
€467
2/2Sun
1 stopBritish Airways
10h 50mORD-DUB
11/2Tue
1 stopBritish Airways
13h 50mDUB-ORD
€507
5/3Wed
2 stopsAmerican Airlines
14h 15mORD-ORK
12/3Wed
2 stopsAmerican Airlines
17h 10mORK-ORD
€527
18/2Tue
1 stopAmerican Airlines
14h 20mORD-SNN
25/2Tue
1 stopAmerican Airlines
15h 15mSNN-ORD
€546

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Recent one-way flight deals

12/3Wed
3 stops
20h 43mORD-DUB
€243
4/2Tue
2 stops
35h 53mORD-DUB
€256
30/3Sun
directAer Lingus
7h 25mORD-DUB
€355
12/2Wed
directAer Lingus
7h 20mORD-DUB
€359
11/2Tue
1 stopKLM
14h 00mORD-DUB
€380
10/3Mon
2 stopsBritish Airways
19h 48mORD-DUB
€385
14/2Fri
1 stopBritish Airways
13h 15mORD-DUB
€408
13/3Thu
1 stopAmerican Airlines
11h 20mORD-DUB
€428
1/7Tue
1 stopAmerican Airlines
12h 30mORD-SNN
€653
4/6Wed
1 stopKLM
15h 10mORD-SNN
€677

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Last minute flights from O'Hare Intl to Ireland

Last minute flight, train and bus deals

22/1Wed
multi-stopTAP AIR PORTUGAL
22h 05mORD-DUB
28/1Tue
multi-stopTAP AIR PORTUGAL
28h 35mDUB-ORD
€378
22/1Wed
multi-stopTAP AIR PORTUGAL
22h 05mORD-DUB
28/1Tue
multi-stopTAP AIR PORTUGAL
28h 35mDUB-ORD
€390
26/1Sun
multi-stop
12h 42mORD-DUB
4/2Tue
multi-stop
13h 02mDUB-ORD
€444
26/1Sun
multi-stop
16h 40mORD-DUB
4/2Tue
multi-stop
16h 18mDUB-ORD
€455
26/1Sun
multi-stopKLM
13h 42mORD-DUB
4/2Tue
multi-stopKLM
16h 18mDUB-ORD
€475
26/1Sun
directAer Lingus
7h 15mORD-DUB
3/2Mon
directAer Lingus
8h 35mDUB-ORD
€477
26/1Sun
multi-stopBritish Airways
13h 10mORD-DUB
3/2Mon
multi-stopBritish Airways
23h 25mDUB-ORD
€480
26/1Sun
multi-stopKLM
12h 42mORD-DUB
2/2Sun
multi-stopKLM
27h 10mDUB-ORD
€502
26/1Sun
multi-stopBritish Airways
16h 10mORD-DUB
3/2Mon
multi-stopBritish Airways
27h 08mDUB-ORD
€526
26/1Sun
multi-stopAer Lingus
13h 55mORD-DUB
3/2Mon
directAer Lingus
8h 35mDUB-ORD
€598

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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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