€180 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 16/10. 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 Chicago

Cheapest return prices found by our users on KAYAK in the last 72 hours
Dublin
Dublindirect€412
Cork
Cork1 stop€437
Shannon
Shannon1 stop€490
Knock
Knock3 stops€665
Donegal
Donegal2 stops€716
Milltown (Kerry)
Milltown (Kerry)1 stop€506
Dublin
Dublindirect€412
Cork
Cork1 stop€437
Shannon
Shannon1 stop€490
Knock
Knock3 stops€665
Donegal
Donegal2 stops€716
Milltown (Kerry)
Milltown (Kerry)1 stop€506

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

Sun, 12 Oct - Tue, 21 Oct
Aer Lingus Logo
15:45 - 05:10ORD-DUB
7h 25mdirect
Aer Lingus Logo
16:40 - 19:00DUB-ORD
8h 20mdirect
€412Aer Lingus
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Wed, 29 Oct - Thu, 6 Nov
Delta Logo
07:00 - 08:45ORD-DUB
20h 45m1 stop
Delta Logo
06:00 - 20:23DUB-ORD
20h 23m2 stops
€413Delta
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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
€415United Airlines
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Mon, 3 Nov - Wed, 12 Nov
Air Canada Logo
18:05 - 07:10ORD-DUB
31h 05m2 stops
Air Canada Logo
09:00 - 18:39DUB-ORD
15h 39m1 stop
€416Air Canada
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Wed, 29 Oct - Thu, 13 Nov
United Airlines Logo
16:20 - 07:30ORD-DUB
10h 10m1 stop
United Airlines Logo
10:40 - 13:30DUB-ORD
8h 50mdirect
€419United Airlines
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Mon, 10 Nov - Mon, 17 Nov
Scandinavian Airlines Logo
19:20 - 18:20ORD-DUB
17h 00m1 stop
Scandinavian Airlines Logo
20:20 - 16:45DUB-ORD
50h 25m2 stops
€421Scandinavian Airlines
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Fri, 31 Oct - Fri, 14 Nov
Scandinavian Airlines Logo
20:20 - 09:25ORD-DUB
32h 05m1 stop
Scandinavian Airlines Logo
19:05 - 16:45DUB-ORD
27h 40m1 stop
€424Scandinavian Airlines
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Wed, 8 Oct - Mon, 13 Oct
Logo
15:50 - 08:15ORD-DUB
10h 25m1 stop
Logo
18:40 - 15:55DUB-ORD
27h 15m1 stop
€426
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Wed, 8 Oct - Wed, 15 Oct
Air Canada Logo
10:40 - 08:15ORD-DUB
15h 35m2 stops
Air Canada Logo
09:50 - 17:33DUB-ORD
13h 43m1 stop
€427Air Canada
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Tue, 25 Nov - Tue, 2 Dec
Logo
11:15 - 07:10ORD-DUB
13h 55m1 stop
Logo
05:00 - 14:55DUB-ORD
15h 55m2 stops
€429
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Booking Insights

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?

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

The cheapest ticket to Ireland from Chicago found in the last 72 hours was to Dublin, at €480 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 €480.

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 €480, 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 €466 (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 €698 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 Thursday 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 a flight from Chicago 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.

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Good to know

Low seasonJanuary
Cheapest flight€180
Best time to beat the crowds (16% less expensive on average)
Most popular time to fly and prices are also 18% 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.
7.2
Aer LingusOverall score based on 1250 reviews
7.1Comfort
8.0Crew
6.5Food
6.9Entertainment
7.3Boarding
Airline reviews

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.

6.0 GoodKrisztina, Sept 2025CDG - DUB
Read more Aer Lingus reviews

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.

Overall it was good experience and it was my first trip with Aer Lingus. One thing I was embarrassed was that someone occupied my seat so I was asked to use another seat. Due to this unhappy happening I almost missed the connecting flight because the random seat was far from the flight door. Food was fine, I liked the macaroni and cheese with fresh bread.

I was very disappointed that the online sys allowed me to get the boarding pass for the second leg of the trip, when I clearly request it for both flights!

It was my first transatlantic flight with Aer Lingus. Very enjoyable. Thank you for making international travel enjoyable again.

Excellent as far as the flight is concerned. Faro airport passport check was a huge delay and worrisome re missing the flight. 45 minutes there through passport control

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.
First Class flights from Chicago to Ireland
Business Class flights from Chicago to Irelandfrom €3,343
Prem Econ Class flights from Chicago to Ireland
Economy class flights from Chicago to Irelandfrom €480

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