€251 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 4/5. 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

KAYAK searches hundreds of travel sites at once for deals on flights to Ireland

Travellers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Track pricesNot ready to book? Create a price alert for when prices drop.

Free to useThere are no hidden charges or fees.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Flight Deals
Booking Insights
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€527
Cork
Cork1 stop€653
Shannon
Shannon2 stops€601
Knock
Knock2 stops€834
Milltown (Kerry)
Milltown (Kerry)2 stops€763
Donegal
Donegal2 stops€942
Dublin
Dublin1 stop€527
Cork
Cork1 stop€653
Shannon
Shannon2 stops€601
Knock
Knock2 stops€834
Milltown (Kerry)
Milltown (Kerry)2 stops€763
Donegal
Donegal2 stops€942

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

Tue, 13 Oct - Wed, 28 Oct
Turkish Airlines Logo
11:25 - 16:00
ORD
-
DUB
22h 35m
1 stop
Turkish Airlines Logo
10:40 - 19:25
DUB
-
ORD
37h 45m
1 stop
€527Turkish Airlines
Sun, 13 Sep - Tue, 22 Sep
Turkish Airlines Logo
20:10 - 16:00
ORD
-
DUB
37h 50m
1 stop
Turkish Airlines Logo
05:35 - 09:40
DUB
-
ORD
34h 05m
1 stop
€528Turkish Airlines
Wed, 21 Oct - Tue, 3 Nov
TAP AIR PORTUGAL Logo
18:00 - 00:05
ORD
-
DUB
24h 05m
1 stop
TAP AIR PORTUGAL Logo
16:55 - 15:30
DUB
-
ORD
28h 35m
1 stop
€531TAP AIR PORTUGAL
Mon, 8 Jun - Sat, 13 Jun
Multiple Airlines Logo
20:20 - 08:20
ORD
-
DUB
30h 00m
2 stops
Multiple Airlines Logo
09:40 - 09:00
DUB
-
ORD
29h 20m
2 stops
€534Multiple Airlines
Tue, 26 May - Thu, 4 Jun
Multiple Airlines Logo
09:55 - 08:20
ORD
-
DUB
16h 25m
2 stops
Multiple Airlines Logo
09:40 - 09:00
DUB
-
ORD
29h 20m
2 stops
€535Multiple Airlines
Thu, 8 Oct - Tue, 13 Oct
Scandinavian Airlines Logo
19:15 - 19:05
ORD
-
DUB
17h 50m
2 stops
Scandinavian Airlines Logo
19:05 - 16:10
DUB
-
ORD
27h 05m
1 stop
€539Scandinavian Airlines
Sun, 30 Aug - Thu, 1 Oct
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
€544Scandinavian Airlines
Mon, 1 Jun - Mon, 15 Jun
Multiple Airlines Logo
20:20 - 08:20
ORD
-
DUB
30h 00m
2 stops
Multiple Airlines Logo
09:40 - 09:00
DUB
-
ORD
29h 20m
2 stops
€547Multiple Airlines
Tue, 11 Aug - Fri, 21 Aug
Aer Lingus Logo
21:15 - 12:35
ORD
-
NOC
33h 20m
1 stop
Aer Lingus Logo
13:05 - 11:30
NOC
-
ORD
28h 25m
2 stops
€950Aer Lingus
Mon, 3 Aug - Thu, 13 Aug
Aer Lingus Logo
21:15 - 12:35
ORD
-
NOC
33h 20m
1 stop
Aer Lingus Logo
13:05 - 11:30
NOC
-
ORD
28h 25m
2 stops
€963Aer 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 €553 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 €553.

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 €490 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 €646.

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.

Yes, flying with a stopover may cost you more time, but you can also save money on the route, with a 1 stop stopover the cheapest option at €833 on average.

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 €428 (return) on average. On the other hand, the most expensive months are June and December, when the average cost of return tickets is €755 and €675 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 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 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 4 weeks before departure, which saves you about 26% compared to booking last-minute. For the absolute cheapest price, our data suggests you should book 14 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight€251
Best time to beat the crowds but there is an average 5% increase in price.
Most popular time to fly (6% more expensive 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.

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.
7.3
Aer LingusOverall score based on 1528 reviews
8.1Crew
6.6Food
7.0Entertainment
7.4Boarding
7.2Comfort
Airline reviews

Late late late. Delayed and arrived an hour late for a 1 hour 45 minute connection. Every time. Poor record for this company. I try to fly any other carrier first.

2.0 MediocreJason, Apr 2026
ORD - TYS
Read more Aer Lingus reviews

Late late late. Delayed and arrived an hour late for a 1 hour 45 minute connection. Every time. Poor record for this company. I try to fly any other carrier first.

This was the smoothest flight I've ever taken with any airline, including Aer Lingus. Typically, there are moments when I feel afraid, but from take off (miraculously seamless!) to cruise, to landing this was a perfect flight. Thank you!

Poor. Plane left EWR late hence missed connecting flight in Dublin. No pro active info from flight staff on connection, only when probed a couple of lies on where we would dock, and on lilelyhood catching connecting flight. Lies as they will have known our EWR-DUB would be parked furthest away from the transit spit - lying it would be next to the AMS flight.

The seat area was way too compact. The person in front reclined, and the TV screen was right in my face. There was a metal box secured to the floor in my foot area, further limiting space. Food was OK. The last service was provided too late in the flight, so the crew was rushing at the end. The ticket counter in the Naples airport was extremely slow. The staff on the flight was friendly.

delayed flight stayed whole night at washington Dallas airport at seats , uncomfortable . i am senior citizen , very tired , worst travel.

I heard that the pilots were actually leprechauns, but I was not able to confirm. Can you please provide documentation if this is true?

The check in process at the front desk felt slow and it was frustrating that we could not check in online. Everything about the actual flight was great, including very kind flight attendants and a nice larger bathroom. Only thing is that it was very cold in the plane!

I flew economy class. Seats were very good and the crew was excellent

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.

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.