€181 Find Cheap Flights from Chicago 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 Chicago to Ireland departing on 14/8. 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 Chicago

Cheapest return prices found by our users on KAYAK in the last 72 hours
Dublin
Dublin1 stop€305
Cork
Cork2 stops€504
Shannon
Shannondirect€444
Knock
Knock2 stops€753
Donegal
Donegal1 stop€631
Milltown (Kerry)
Milltown (Kerry)1 stop€537
Dublin
Dublin1 stop€305
Cork
Cork2 stops€504
Shannon
Shannondirect€444
Knock
Knock2 stops€753
Donegal
Donegal1 stop€631
Milltown (Kerry)
Milltown (Kerry)1 stop€537

Cheap Flights from Chicago to Ireland

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Chicago 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 Chicago to Ireland

Wed, 12 Nov - Fri, 21 Nov
Icelandair Logo
18:30 - 10:15ORD-DUB
9h 45m1 stop
Icelandair Logo
11:30 - 17:20DUB-ORD
11h 50m1 stop
€305Icelandair
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Mon, 20 Oct - Sun, 2 Nov
Scandinavian Airlines Logo
19:15 - 18:15ORD-DUB
17h 00m1 stop
Scandinavian Airlines Logo
11:35 - 16:45DUB-ORD
35h 10m2 stops
€308Scandinavian Airlines
Find Deal
Mon, 11 Aug - Wed, 20 Aug
Aer Lingus Logo
15:45 - 05:10ORD-DUB
7h 25mdirect
Aer Lingus Logo
16:40 - 19:00DUB-ORD
8h 20mdirect
€338Aer Lingus
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Mon, 11 Aug - Wed, 20 Aug
Aer Lingus Logo
15:45 - 05:10ORD-DUB
7h 25mdirect
Aer Lingus Logo
16:40 - 19:00DUB-ORD
8h 20mdirect
€343Aer Lingus
Find Deal
Fri, 7 Nov - Thu, 13 Nov
TAP AIR PORTUGAL Logo
20:15 - 16:10ORD-DUB
13h 55m1 stop
TAP AIR PORTUGAL Logo
04:25 - 15:15DUB-ORD
16h 50m1 stop
€344TAP AIR PORTUGAL
Find Deal
Thu, 16 Oct - Thu, 23 Oct
TAP AIR PORTUGAL Logo
18:00 - 18:05ORD-DUB
18h 05m1 stop
TAP AIR PORTUGAL Logo
18:50 - 16:10DUB-ORD
27h 20m1 stop
€345TAP AIR PORTUGAL
Find Deal
Mon, 11 Aug - Wed, 20 Aug
KLM Logo
18:17 - 10:00MDW-DUB
9h 43m1 stop
KLM Logo
10:00 - 17:37DUB-MDW
13h 37m1 stop
€429KLM
Find Deal
Sun, 10 Aug - Tue, 19 Aug
United Airlines Logo
18:05 - 07:30ORD-SNN
7h 25mdirect
United Airlines Logo
09:30 - 11:45SNN-ORD
8h 15mdirect
€444United Airlines
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Sun, 10 Aug - Tue, 19 Aug
United Airlines Logo
11:15 - 10:15ORD-SNN
17h 00m2 stops
United Airlines Logo
09:30 - 11:45SNN-ORD
8h 15mdirect
€445United Airlines
Find Deal
Mon, 11 Aug - Wed, 20 Aug
KLM Logo
18:17 - 10:00MDW-DUB
9h 43m1 stop
KLM Logo
10:00 - 17:37DUB-MDW
13h 37m1 stop
€452KLM
Find Deal
Useful Info

KAYAK's insights & trends for Chicago to Ireland flights

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

What is the cheapest Chicago to Ireland flight route?

The cheapest price for flight routes found by users searching on KAYAK in the last 2 weeks for round-trip flights from Chicago to Ireland.

The cheapest ticket to Ireland from Chicago found in the last 72 hours was to Dublin, at €301 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 €301.

Can I save money by flying with a stopover from Chicago 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 €654, prices are generally cheapest when you fly direct.

What is the cheapest month to fly from Chicago to Ireland?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Chicago 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 to Ireland is February, when tickets cost €460 (return) on average. On the other hand, the most expensive months are June and July, when the average cost of return tickets is €760 and €691 respectively.

What’s the cheapest day of the week to fly from Chicago to Ireland?

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

When flying from Chicago to Ireland, you should consider leaving on a Wednesday and avoid Tuesdays if you are looking for the best rates. For your return to Chicago, you’ll find the best rates on Wednesdays and the most expensive ones on Sundays.

How far in advance should I book a flight from Chicago 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 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 the flight from Chicago to Ireland, you should book around 4 weeks before departure. For the absolute cheapest price, our data suggests you should book 10 weeks before departure.


Good to know

Low seasonFebruary
High seasonSeptember
Cheapest flight€181
Best time to beat the crowds (17% less expensive on average)
Most popular time to fly and prices are also 13% lower on average.
Flight from Chicago O'Hare Airport to Dublin

FAQs - booking Ireland flights

  • How do you get downtown from the Dublin Airport?

    You can take a public bus from the airport into the city of Dublin. The airport bus will take you to Sutton Station. From here, you can take another bus to your final destination. Go to Zone 15, which is close to the atrium, an attached hall to the airport. Taxis are also available for transportation from the airport into the city. The taxi stand is outside of Terminals 1 and 2.

  • What airport should I choose when flying into Ireland?

    Dublin is one of the largest cities in Ireland. It is also just a short drive from the big cities of Louth and Belfast, making this a convenient airport to fly into if you're visiting eastern or northern Ireland. If you're visiting southern Ireland, you might want to fly into Cork Airport, which is a short drive from the cities of Cork and Waterford. Shannon Airport is within close proximity of Munster.

  • Are there car rental companies at any of the airports?

    There are numerous car rental agencies at the Dublin Airport. The offices are outside of Terminal 2. At Cork Airport, the car rental agencies are located in the arrival hall. If you've flown into Shannon Airport, you can also rent a car at the airport. Again, you'll find the offices for car rental services in its arrival hall.

  • Where can I park my car at Chicago O'Hare Airport (ORD)?

    At Chicago O'Hare Airport, there is a parking lot right next to the international terminal. International Lot D is for short-term parking only. If you need long-term parking, you'll probably want to park in one of the economy lots. These are off-site, and a shuttle will take you to the airport after parking your car.

  • How does KAYAK find such low prices on flights from Chicago 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 to Ireland.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Chicago to Ireland?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Chicago 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 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 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 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 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

  • Dublin Airport (DUB) is one of the busiest airports in Ireland. Other large airports in Ireland include Cork (ORK) and Shannon Airport (SNN).
  • Book a nonstop flight to Dublin from Chicago (ORD) with Aer Lingus. If flying into other airports in Ireland, you will have one or two layovers in Frankfurt, Toronto or London.
  • Relax before leaving Dublin in one of its travel lounges. There is one outside of Terminal 1, two in Terminal 2, and another for Aer Lingus passengers only.
  • Chicago O'Hare Airport (ORD) has an on-site hotel. Book a room at the Hilton Chicago O'Hare Hotel if you have an early flight. The hotel is located directly across the street from the terminals.
  • Once you land at Dublin Airport, you can exchange currency at the Bureau of Change located in the departure and arrival halls as well as the baggage claim area. There is also a currency exchange center at Shannon Airport in the customs hall and the departure lounge.
  • Dublin Airport is about 23min from the city center. Shannon Airport is 24min from the city of Clare and Cork Airport is about 20min from the center of Cork.
  • If you're looking for something to occupy your time while waiting for your flight to leave, Chicago O'Hare Airport has an art center where you can enjoy murals, paintings and sculptures.

Reviews of the top airline flying from Chicago to Ireland

 
Need help choosing which airline to fly with from Chicago 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.
7.1
Aer LingusOverall score based on 1151 reviews
8.0Crew
6.8Entertainment
7.2Boarding
7.0Comfort
6.4Food
Airline reviews

The Nice airport was a horrible boarding experience. I have never experienced the kind of compressed mob (in the B12-B17 gate area) of people all unclear what was happening and no airport staff to assist. There was no signage and 1000’s of people waiting for any info for 2 hours.

2.0 MediocreTim, Jul 2025NCE - DUB
Read more Aer Lingus reviews

The Nice airport was a horrible boarding experience. I have never experienced the kind of compressed mob (in the B12-B17 gate area) of people all unclear what was happening and no airport staff to assist. There was no signage and 1000’s of people waiting for any info for 2 hours.

The food was mediocre, the coffee was terrible. The entertaining selection was plentiful. They lost my checked luggage which put a damper on my 10-day vacation.

Weeeeeeell, you folks know economy class on Airbuses well--you're packed in like sardines. We may actually spring for more expensive seats next time, with a little room to stretch out. NO room to stretch out in Airbus economy class! :-) Apart from this, the food was decent (considering that it's mass-produced, and has severe spatial restrictions of its own), the staff were friendly enough, and there was a wide selection of movies, etc. to watch. Overall, I'd tend to use the word "adequate" rather than "exceptional" for my experience. But really, how could it be otherwise?

Excellent service, full flight but all went well ; slightly delayed start at Faro but arrived in Cork on time.

The ease of boarding was good. I wish they had something to eat on the plane.

The check in process at CDG was absolutely unacceptable. We arrived to the airport 3 hours and 20 minutes before our departure time, waited in line for 1 hour and 30 minutes to check in (despite having checked in online and only needing to check a bag), then were forced to check all of our rolling luggage despite the fact that all were compliant with carry-on requirements. The staff at the desk were rude and there were only two desks open, while eight people were working. The check in desk wasn’t even opened on time (3 hours prior to departure) and there was no communication about when it would open or why there was a delay. We feared missing our flight because the departure board was not updated, so rushed to our gate to board once we were through security because it was 20 minutes prior to departure, only to wait another 30 minutes before boarding even started. Communication was lacking throughout the process. What a horrible end to our trip.

The check in process at CDG was absolutely unacceptable. We arrived to the airport 3 hours and 20 minutes before our departure time, waited in line for 1 hour and 30 minutes to check in (despite having checked in online and only needing to check a bag), then were forced to check all of our rolling luggage despite the fact that all were compliant with carry-on requirements. The staff at the desk were rude and there were only two desks open, while eight people were working. We feared missing our flight because the departure board was not updated, so rushed to our gate to board once we were through security because it was 20 minutes prior to departure, only to wait another 30 minutes before boarding even started. Communication was lacking throughout the process. What a horrible end to our trip.

Seats were less comfortable and tight from Newark to Dublin, than my second flight ( small segment from Dublin to Lyon). Movie audio was with frying sound overall. Yet the worst was as follows: one male, (dark hair , glasses on) from the crew member was so cold and rough, while I remained with constancy polite and kind. Per exple with the noise level I could not hear him at first for beverages, he rolled his eyes at the third times I finally heard him. From the start, loading my small hand bags , he directly spoke to me and said “ I had to keep my shopping bad by my seat, under , while there was sufficient room and I was among the last to sit. I show him the space , his face was always dull, stoic, not welcoming as the usual crew members from any airline companies are. When I think of my experience I liard w Aer Lingus, this is the image that gets back to me. Needless to say that as a passenger and client, I felt belittled since all this happened in front of the surrendering passengers. It s an affront and not a pleasant feeling especially when being traveling which oftentimes involves stress with carrying, and making it on time. I m not happy with the experience I had to be honest and I fly four times a year. Thank you for allowing me to share this statement with your company.

Really helpful staff at the airport and the flight was comfortable with good entertainment options and food service

The flight was delayed by about an hour, but the staff and signs at the airport never actually said it was delayed. At the expected boarding time, we were told we would be boarding in about 10 minutes, then 20 minutes passed, and were told again that we would board in about 10 minutes. That happened multiple times, such that "10 minutes" turned into an hour.

Everything you need to know for your flight from Chicago to Ireland

Cabin class types available on flights to Ireland

Cabin classes available on flights to Ireland. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.

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