€180 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 24/10. 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
1 adult, Economy

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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€415
Cork
Cork1 stop€428
Shannon
Shannondirect€466
Knock
Knock1 stop€664
Donegal
Donegal2 stops€712
Dublin
Dublin1 stop€415
Cork
Cork1 stop€428
Shannon
Shannondirect€466
Knock
Knock1 stop€664
Donegal
Donegal2 stops€712

Cheap Flights from O'Hare Intl to Ireland

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from O'Hare Intl to Ireland that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from O'Hare Intl to Ireland

Wed, 5 Nov - Mon, 10 Nov
SWISS Logo
18:50 - 17:45ORD-DUB
16h 55m1 stop
SWISS Logo
13:20 - 16:20DUB-ORD
33h 00m1 stop
€415SWISS
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Sun, 12 Oct - Fri, 24 Oct
United Airlines Logo
20:20 - 09:45ORD-DUB
7h 25mdirect
United Airlines Logo
09:20 - 20:04DUB-ORD
16h 44m1 stop
€416United Airlines
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Sun, 1 Mar - Thu, 5 Mar
Scandinavian Airlines Logo
19:20 - 11:45ORD-DUB
34h 25m1 stop
Scandinavian Airlines Logo
11:15 - 16:55DUB-ORD
35h 40m2 stops
€417Scandinavian Airlines
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Sun, 22 Feb - Sun, 1 Mar
Scandinavian Airlines Logo
19:10 - 19:35ORD-DUB
18h 25m2 stops
Scandinavian Airlines Logo
12:05 - 16:45DUB-ORD
34h 40m2 stops
€417Scandinavian Airlines
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Tue, 14 Oct - Wed, 22 Oct
Air Canada Logo
15:50 - 08:15ORD-DUB
10h 25m1 stop
Air Canada Logo
09:20 - 20:04DUB-ORD
16h 44m1 stop
€420Air Canada
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Sat, 27 Dec - Wed, 7 Jan
Air Canada Logo
20:15 - 07:10ORD-DUB
28h 55m1 stop
Air Canada Logo
09:00 - 14:55DUB-ORD
35h 55m2 stops
€422Air Canada
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Mon, 6 Oct - Mon, 13 Oct
 Logo
15:45 - 07:45ORD-DUB
34h 00m1 stop
 Logo
13:00 - 15:55DUB-ORD
32h 55m1 stop
€423
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Tue, 14 Oct - Tue, 21 Oct
Aer Lingus Logo
15:45 - 05:10ORD-DUB
7h 25mdirect
Aer Lingus Logo
16:40 - 19:00DUB-ORD
8h 20mdirect
€425Aer Lingus
Find Deal
Wed, 8 Oct - Wed, 15 Oct
Aer Lingus Logo
15:45 - 05:10ORD-DUB
7h 25mdirect
Aer Lingus Logo
16:40 - 19:00DUB-ORD
8h 20mdirect
€426Aer Lingus
Find Deal
Wed, 8 Oct - Mon, 13 Oct
 Logo
09:55 - 08:15ORD-DUB
16h 20m1 stop
 Logo
18:40 - 15:55DUB-ORD
27h 15m1 stop
€437
Find Deal
Booking Insights

KAYAK's insights & trends for O'Hare Intl to Ireland flights

Get data-powered insights and trends into flights from O'Hare Intl to Ireland to help you find the cheapest flights, the best time to fly, and much more.

What is the cheapest Chicago O'Hare Intl Airport to Ireland flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest ticket to Ireland from Chicago O'Hare Intl Airport found in the last 72 hours was to Dublin, at €477 return. The most popular route is from Chicago O'Hare Intl Airport (ORD) to Dublin (DUB), and the cheapest round-trip airline ticket found on this route in the last 72 hours was €477.

Can I save money by flying with a stopover from Chicago O'Hare Intl Airport to Ireland?

The average return price for all direct flights, flights with one stopover, and flights with two stopovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of €531, prices are generally cheapest when you fly direct.

What is the cheapest month to fly from Chicago O'Hare Intl Airport to Ireland?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Chicago O'Hare Intl Airport to Ireland, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Chicago O'Hare Intl Airport to Ireland is January, when tickets cost €447 (return) on average. On the other hand, the most expensive months are June and July, when the average cost of return tickets is €785 and €689 respectively.

What’s the cheapest day of the week to fly from Chicago O'Hare Airport to Ireland?

The average price of all round-trip flights from Chicago O'Hare Intl Airport to Ireland clicked on KAYAK for each day over the last 12 months.

For Chicago O'Hare Airport to Ireland, Thursday is the cheapest day to fly on average and Tuesday is the most expensive. Flying from Ireland back to Chicago O'Hare Airport, the best deals are generally found on Wednesday, with Sunday being the most expensive.

How far in advance should I book a flight from Chicago O'Hare Intl Airport to Ireland?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Chicago O'Hare Intl Airport to Ireland, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below-average price on a flight from Chicago O'Hare Intl Airport to Ireland, you should book around 3 weeks before departure, which saves you about 18% compared to booking last-minute. For the absolute cheapest price, our data suggests you should book 10 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight€180
Best time to beat the crowds (23% less expensive on average)
Most popular time to fly and prices are also 6% 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.

  • What is the cheapest time of day to fly to Ireland?

    The cheapest time of day to fly to Ireland is generally at night, when retur flights cost €730 on average. Morning departures are around 100% cheaper than evening flights, on average. The most expensive time of day to fly to Ireland is generally in the afternoon, which is peak travel time and where the average cost of a ticket is €910.

Top tips for finding cheap flights to Ireland

  • Looking for a cheap flight? 25% of our users found tickets from Chicago O'Hare Airport to the following destinations at these prices or less: Dublin €579 one-way - €549 round-trip

Reviews of the top airlines 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.
7.4
United AirlinesOverall score based on 8937 reviews
7.3Comfort
7.1Entertainment
6.6Food
8.1Crew
7.7Boarding
Airline reviews

Once we got in the air the pilot made up some of the time of the delay. So that was really nice.

10.0 ExcellentAnonymous, Aug 2025ORD - MEM
Read more United Airlines reviews

Once we got in the air the pilot made up some of the time of the delay. So that was really nice.

We had a layover from YVR to Denver. We bought 4 bottles of Absolut Vodka at the YVR Duty Free for $116.20, after going through security and American Customs Pre Clearance at YVR, Vancouver. When we landed in Denver, United put us behind the American Customs as well as TSA again for some reason. We were forced to go through American Customs and TSA again. TSA confiscated our rightfully owned Duty Free Absolut Vodka bottles. Because United incorrectly forced our flight behind American border and TSA again, we missed the connecting flight. After United put us on a later flight, we eventually arrived in Chicago very late, with hardly any sleep. I am looking for compensation from United for our incorrectly confiscated Absolut Vodka bottles worth $116.20, as well as compensation for incorrectly putting us behind American Customs and TSA again, causing us to miss our connecting flight, making us arrive extremely late in Chicago.

Excellent flight. Boarding was efficient and departure was on time. Smooth flight with on time arrival. Deplaning was also efficient.

It was delayed instead of departing at 9:20pm, we departed at 11pm… putting us in Columbus after 2am! It was awful. Had I known about the delay, I could have spent some time in the United Lounge… I was starving because I started my journey in Budapest… so I was exhausted and hungry. Plus I had to make new arrangements to be picked up at the airport in Columbus, instead of midnight it was 2:30 am after getting luggage and out of airport. Not feasible. I would have just stayed in Chicago for the night and gotten a morning flight.

It was great, I’m very grateful for the pilots and crew flight attendants for everything.

Evidently, my seat had the only broken TV. I couldn’t plug it in, get it to come on, or watch anything, and of course, no one could fix it while we were on the plane. The service was good and the boarding was quick

The boarding of took of late.The presentation of the food was horrable as was the tast of the food was cold and tastless.

Delay and keep changing gates. I have to run around from B to C then to E.

I was charged for my daughters bag when I am supposed to receive two free checked bags with my United Explorer card.

The schedule to Moline changed 5 times. The gate changed 6 times. That is a pathetic way to run an airline. No wonder that no one in our company flies on United Express to or from Moline. Changes happen most of the time. I learned my lesson on this trip…never again!

Too hot. Asked for an extra glass of water and was ignored. Asked to sit in empty seats that were open because it was so hot and crowded and was denied and the seats were empty the entire flight

Terrible leg room - I’m 5’3” and my knees were touching the seat in front of me. When the person sitting in front of me leaned back, there was about 15 inches of space between my head and the TV screen which made it awkward to view movies. Last year they had decent food, but this year the only tasty item on the trip was dessert.

The flight was delayed leaving Philadelphia due to “catering” and consequently arrived in Dublin some 75 minutes later than scheduled. Consequently this caused me to miss my connecting flight to Glasgow and I had to spend the night in Dublin.

It was truly a horrible flight. We were delayed almost 2 hours. The seats were so tiny, my legs were hurting the entire flight. When i finally made it to Ireland i missed my connecting flight because we left Newark late. I will most likely never fly Aer Lingus again

Coming from the EU to the USA, Aer Lingus is a very good choice. You clear U.S. border control while still at the departure airport, so when you land in the States, you don’t need to go through the entry process again — very efficient and fast. In terms of comfort, Aer Lingus is better than the usual EU carriers like KLM, Lufthansa, or Air France, and also better than United. There’s more legroom, and the crew is helpful and kind. The food is average but slightly better than most airlines. Overall, the crew is definitely better than on American Airlines, though not quite at the level of Virgin.

Best travel day I've had in a long time. Everything went perfectly, no delays. 10 out of 10

Seat is business could have been a lot cleaner, but space was nice and seat was comfortable

Terrible. The test of an airline is how they deal with problems. There is very little to differentiate between airlines. Aer Lingus failed absolutely. They lost one of my bags even though we had more than a 2 hour connection in Dublin. Trying to get it back has been awful. In checking on line I can see that the bag is in Edinburgh and it was supposed to be delivered today. It wasn't. The number we have in the UK doesn't answer. I had to pay for an international call to speak to somebody. All the woman at the call centre could say was be patient wait. I can tell you when it will be delivered nor can I tell you who the courier is.

A little late, but an overall pleasant flight. Staff pleasent hand helpful, a great start to our holiday.

Poor check-in experience in Manchester. Delayed boarding and check-in agent never explained how to transfer in NYC to JetBlue.

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

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