€193 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 21/4. 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, 0 bags

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Flight Deals

Best Ireland Flight Deals from Chicago

Cheapest return prices found by our users on KAYAK in the last 72 hours
Dublin
Dublin1 stop€392
Cork
Cork1 stop€467
Shannon
Shannondirect€470
Knock
Knock1 stop€681
Donegal
Donegal1 stop€571
Dublin
Dublin1 stop€392
Cork
Cork1 stop€467
Shannon
Shannondirect€470
Knock
Knock1 stop€681
Donegal
Donegal1 stop€571

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

Sat, 25 Apr - Sat, 9 May
Scandinavian Airlines Logo
19:15 - 18:20
ORD
-
DUB
17h 05m
1 stop
Scandinavian Airlines Logo
20:00 - 16:10
DUB
-
ORD
50h 10m
2 stops
€392Scandinavian Airlines
Sat, 25 Apr - Thu, 7 May
Scandinavian Airlines Logo
19:15 - 18:20
ORD
-
DUB
17h 05m
1 stop
Scandinavian Airlines Logo
19:05 - 16:10
DUB
-
ORD
27h 05m
1 stop
€399Scandinavian Airlines
Mon, 20 Apr - Mon, 27 Apr
KLM Logo
17:10 - 14:40
ORD
-
ORK
15h 30m
1 stop
KLM Logo
10:50 - 14:15
ORK
-
ORD
33h 25m
1 stop
€467KLM
Tue, 11 Aug - Wed, 26 Aug
United Airlines Logo
18:05 - 07:30
ORD
-
SNN
7h 25mdirect
United Airlines Logo
09:30 - 11:50
SNN
-
ORD
8h 20mdirect
€470United Airlines
Tue, 11 Aug - Wed, 26 Aug
United Airlines Logo
18:05 - 07:30
ORD
-
SNN
7h 25mdirect
United Airlines Logo
09:30 - 11:50
SNN
-
ORD
8h 20mdirect
€471United Airlines
Mon, 20 Apr - Wed, 6 May
KLM Logo
17:10 - 14:40
ORD
-
ORK
15h 30m
1 stop
KLM Logo
10:50 - 14:15
ORK
-
ORD
33h 25m
1 stop
€472KLM
Fri, 4 Sep - Sat, 12 Sep
Lufthansa Logo
16:05 - 11:15
ORD
-
SNN
13h 10m
1 stop
Lufthansa Logo
12:00 - 19:55
SNN
-
ORD
13h 55m
1 stop
€475Lufthansa
Thu, 7 May - Tue, 12 May
Lufthansa Logo
22:30 - 16:30
ORD
-
ORK
12h 00m
1 stop
Lufthansa Logo
16:55 - 12:55
ORK
-
ORD
26h 00m
1 stop
€495Lufthansa
Thu, 23 Apr - Thu, 30 Apr
Aer Lingus Logo
21:00 - 20:00
ORD
-
CFN
17h 00m
1 stop
Aer Lingus Logo
08:00 - 14:00
CFN
-
ORD
12h 00m
1 stop
€571Aer Lingus
Wed, 22 Apr - Wed, 29 Apr
Aer Lingus Logo
15:45 - 12:35
ORD
-
NOC
14h 50m
2 stops
Aer Lingus Logo
13:05 - 19:15
NOC
-
ORD
36h 10m
2 stops
€707Aer Lingus
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 €611 return. The most popular route is from Chicago O'Hare Intl Airport (ORD) to Shannon (SNN), and the cheapest round-trip airline ticket found on this route in the last 72 hours was €776.

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

The average price for all round-trip flights from Chicago to Ireland depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.

The cheapest time of day to fly to Ireland is generally at night, when retur flights cost €631 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 evening, which is peak travel time and where the average cost of a ticket is €653.

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 €591, 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 January, when tickets cost €429 (return) on average. On the other hand, the most expensive months are June and December, when the average cost of return tickets is €735 and €678 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 Saturdays if you are looking for the best rates. For your return to Chicago, you’ll find the best rates on Thursdays and the most expensive ones on Tuesdays.

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 4 weeks before departure, which saves you about 23% compared to booking last-minute. For the absolute cheapest price, our data suggests you should book 23 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight€193
Best time to beat the crowds but there is an average 5% increase in price.
Most popular time to fly (7% more expensive on average)
Flight from Chicago O'Hare Airport to Cork

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.

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 1473 reviews
7.2Comfort
8.1Crew
7.4Boarding
6.6Food
7.0Entertainment
Airline reviews

I had a great experience. I would definitely use them again

10.0 ExcellentBrittney, Feb 2026
PRG - DUB
Read more Aer Lingus reviews

I had a great experience. I would definitely use them again

The pre-check (passport control) for all US flights from Dublin airport is brilliant, meaning these flights come into the domestic airport in the US - it was so quick and easy getting to my hotel once we landed. The plane itself was great, staff were lovely and food was fine.

Punctual, smooth flight. Crew excellent and cabin very clean. Paid for WiFi but once you close out you cannot get back in even if you paid for entire flight.

Flight crew was superb. Meal was one of the meals at altitude I’ve had

One of the best flight experience I have had in along time. Would fly with them again.

Like getting a bus. No great luxury but will get you there

Got us to destination alive, albeit a bit late. Luggage was left behind. No live tracking app available (available on some other airlines). Supposedly going to be delivered in next couple of days.

The trip was mostly nice, till the last moment when they had some issue with opening the flight door. The flight arrived late by 10 minutes, which was ok-ish, but then we got stuck on the plane for 35 minutes at the bridge and that costed our connection flight to LAX which left with 12+ passengers still on our flight. It added 2 days to our trip home, and we had to make lots of rearrangements to deal with the ripple effects. Don't book a 1+ stop trip with a layover time less than 2 hours.

My seat was broken. No sound available and the armrest between my wife and I was broken so it could only fold halfway up. Seats were a big close together so they felt a bit claustrophobic. Boarding was a little frustrating in Dublin as there is not sufficient room to actually queue up. Boarding was also frustrating for people behind me who were unable to use the overhead due to people abusing the privilege and putting more than one item each up there. Staff was friendly and helpful to those people.

The staff was amazing, so friendly and responsive. Check in was tedious as the online service was not available and the desk understaffed. It took a full hour in line to check in. The seats, in economy, where quite spacious until the people in front of us reclined their seats which then meant the seat was touching our knees. The inconsiderate people who were seated in a bulkhead kept their seats reclined for 80% of the flight and then got annoyed when we bumped their seats while shifting positions. It was highly unpleasant..

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.