CHI - DUB

€166 Find Cheap Flights from Chicago to Dublin – Compare and Save

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 Dublin departing on 28/8. 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, 0 bags

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Everything you should know

Cheapest return fare
€347
Typical prices: €459-€832
Aer Lingus
Sun 6/12Sat 12/12
ORD - DUB • 1 stop
Cheapest direct flights
€403
Typical prices: €519-€782
Austrian Airlines, Lufthansa
Tue 4/8Tue 11/8
ORD - DUB • Direct
Top airlines
Cheapest • from €347 (return)
Best reviews • 7.3 score
Airline reviews
Airline reviews
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Airline reviews
Airline reviews
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Direct flights
You can fly direct with Aer Lingus, American Airlines, and United Airlines. Average duration is 7h 28m
Direct flights
Direct flights
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Direct flights
Direct flights
+1
Top routes
Cheapest
Most popular
Insights
Insights
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Insights
Avoid delays
Most punctual • 79% on-time
Best time • Fewest delays
Insights
Insights
Insights
Insights
When to book
in advance
Our data shows that travellers who book at least 4 weeks in advance save around 31% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 61% price drop
Most popular
Good to know
Good to know
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Good to know
Good to know
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We hope you love your trip to Dublin!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Chicago to Dublin (CHI-DUB)

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

Sun, 6 Dec - Sat, 12 Dec
Aer Lingus Logo
18:34 - 05:10
ORD
-
DUB
28h 36m
1 stop
Aer Lingus Logo
13:00 - 19:24
DUB
-
ORD
12h 24m
1 stop
€347Aer Lingus
Mon, 7 Dec - Sat, 12 Dec
Aer Lingus Logo
08:45 - 05:10
ORD
-
DUB
14h 25m
1 stop
Aer Lingus Logo
13:00 - 19:24
DUB
-
ORD
12h 24m
1 stop
€352Aer Lingus
Sun, 8 Nov - Sat, 14 Nov
Aer Lingus Logo
10:15 - 05:10
ORD
-
DUB
12h 55m
1 stop
Aer Lingus Logo
13:00 - 19:20
DUB
-
ORD
12h 20m
1 stop
€357Aer Lingus
Fri, 14 Aug - Fri, 21 Aug
Multiple Airlines Logo
15:40 - 07:45
ORD
-
DUB
10h 05m
1 stop
Multiple Airlines Logo
09:20 - 14:55
DUB
-
ORD
11h 35m
1 stop
€377Multiple Airlines
Fri, 7 Aug - Tue, 11 Aug
Multiple Airlines Logo
15:40 - 07:45
ORD
-
DUB
10h 05m
1 stop
Multiple Airlines Logo
09:50 - 14:44
DUB
-
ORD
10h 54m
1 stop
€380Multiple Airlines
Mon, 24 Aug - Mon, 31 Aug
Air Canada Logo
11:05 - 07:45
ORD
-
DUB
14h 40m
1 stop
Air Canada Logo
09:50 - 07:51
DUB
-
ORD
28h 01m
1 stop
€381Air Canada
Mon, 10 Aug - Wed, 19 Aug
KLM Logo
12:46 - 08:45
MDW
-
DUB
13h 59m
1 stop
KLM Logo
10:00 - 18:33
DUB
-
MDW
14h 33m
1 stop
€569KLM
Tue, 25 Aug - Mon, 14 Sep
Delta Logo
09:59 - 07:55
MDW
-
DUB
15h 56m
1 stop
Delta Logo
12:00 - 18:19
DUB
-
MDW
12h 19m
1 stop
€570Delta
Thu, 20 Aug - Wed, 26 Aug
KLM Logo
18:42 - 10:00
MDW
-
DUB
9h 18m
1 stop
KLM Logo
10:00 - 18:33
DUB
-
MDW
14h 33m
1 stop
€571KLM
Wed, 19 Aug - Wed, 26 Aug
Delta Logo
13:25 - 10:00
MDW
-
DUB
14h 35m
1 stop
Delta Logo
12:00 - 18:01
DUB
-
MDW
12h 01m
1 stop
€578Delta
Booking Insights

KAYAK's insights & trends for Chicago to Dublin flights

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

How much is a return flight from Chicago to Dublin?

This analysis is based on the cheapest return trip price found on KAYAK in the last 12 months by searching for a flight from Chicago to Dublin departing in December.

What is the cheapest Chicago to Dublin flight route?

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

The cheapest return flight from Chicago to Dublin costs €815 on the route between Chicago O'Hare Intl Airport (ORD) and Dublin (DUB). It is also the most popular route.

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

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

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

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Chicago to Dublin, 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 Dublin is February, where tickets cost €298 (return) on average. On the other hand, the most expensive months are November and July, where the average cost of round-trip tickets is €2,610 and €846 respectively.

Can I save money by flying with a stopover from Chicago to Dublin?

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 €412 on average.

How far in advance should I book a flight from Chicago to Dublin?

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 Dublin, 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 Dublin, you should book around 4 weeks before departure, which saves you about 31% 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€166
Best time to beat the crowds (24% less expensive on average)
Most popular time to fly (39% more expensive on average)
Flight from Chicago O'Hare Airport to Dublin

When to book flights from Chicago to Dublin

Are your dates flexible? Find out the best times to travel from Chicago to Dublin based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or returns with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Chicago to Dublin

  • Can I take a moment and rest as I wait for my flight at O’Hare Airport?

    You can take a moment and relax at Hilton O’Hare as you wait to catch your flight. If you plan to fly a day later, the hotel offers accommodation. The terminals feature an elegant Urban Garden designed as a waiting area for travelers. The airport has elevators in all terminals with braille and enhanced numbers for physically challenged passengers to access.

  • Are there changing rooms at O’Hare Airport?

    At Terminal 1, you can find a restroom and a shower room, among other facilities. The changing rooms are accessible via elevator, and they feature a changing table. There are wall-mounted toilets and a modern communication system. The doors to these amenities are automatic, making them safe for any user.

  • Does Dublin airport feature lounges?

    Terminals 1 and 2 feature several waiting rooms where you can read journals and newspapers as you enjoy complimentary refreshments and drinks. What more, the lounges have free Wi-Fi and computer access.

  • Can I get accommodation near Dublin Airport?

    You can access hotels as close as 0.5 miles from the airport. They include Clayton hotel, which offers 24/7 accommodation services. The hotels have comfortable beds, excellent food, and friendly staff. You can access the hotels using the airport shuttle buses that operate 24h a day. There are several classes of rooms depending on your requirements.

  • What is the cheapest flight from Chicago to Dublin?

    In the last 3 days, the lowest price for a flight from Chicago to Dublin was €166 for a one-way ticket and €347 for a return.

  • Which airports will I be using when flying from Chicago to Dublin?

    When flying out of Chicago you will be using one of these airports: Chicago Midway or Chicago O'Hare Intl. You will be landing at Dublin.

  • Which airlines offer Wi-Fi service onboard planes from Chicago to Dublin?

    All the following airlines offer inflight Wi-Fi service on the Chicago to Dublin flight route: American Airlines, Finnair, Aer Lingus, British Airways, Iberia, and Lufthansa.

  • Which aircraft models fly most regularly from Chicago to Dublin?

    The Boeing 787-8 Dreamliner is the aircraft model that flies most regularly on the Chicago to Dublin flight route.

  • On which days can I fly direct from Chicago to Dublin?

    There are direct flights from Chicago to Dublin on a daily basis.

  • How does KAYAK find such low prices on flights from Chicago to Dublin?

    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 Dublin.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Dublin from Chicago is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Chicago to Dublin?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to Dublin with an airline and back to Chicago with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Chicago to Dublin?

    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 to Dublin from Chicago up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Chicago to Dublin

  • Travelers flying to Dublin can take express flights from Chicago, courtesy of British Airlines and United Airlines. Passengers can commute between the terminals and the parking garage using shuttle buses that O’Hare airport provides. The facility has four terminals that facilitate domestic and international connections.
  • When flying from Chicago, you can depart from O’Hare airport (ORD) or Midway Airport (MDW) for incredible flight services. Expect to land at Dublin airport (DUB) after several hours. Services at Chicago airports include free carry-on bag and luggage inspection. If you want to fly nonstop, you can use Aer Airlines.
  • Dublin Airport (DUB) is the chief option and is the busiest among the airports in Ireland. Travelers enjoy a reliable network of a variety of hauls, both medium and short. The airport is famous for clearing travelers onboard to the US at the border.
  • Accessing Dublin city using a bus or coach offers the most affordable alternative. The availability of these services 24h a day makes it convenient regardless of the time you land at Dublin airport. You can catch the buses in zone 15 at the Dublin Airport Bus Park. The bus fare varies depending on where you want to go.
  • It takes less than 15min for passengers to settle at the boarding gate, thanks to the exceptional services that Dublin Airport has to offer. Premium services at terminals 1 and 2 include drinks and food. Caffe Nero, at Terminal 2 arrivals, sells coffee, tea, and salads.
  • Dublin Airport boasts hosting Our Lady Queen of Heaven for the Catholics and an open room where all denominations can pray. People can access the prayer room at any time of the day since it offers a quiet and peaceful environment.

Prefer to fly direct from Chicago to Dublin?

 
Nonstop data is based off flight results for the next 60 days. Find direct flights from all airlines flying nonstop from Chicago to Dublin.
Find which airlines fly direct from Chicago to Dublin Airport, which days they fly and book direct flights.

Direct departures

Chicago to Dublin

Monday

Aer Lingus,American Airlines,United Airlines

Aer Lingus,American Airlines, +1 more

Tuesday

Aer Lingus,American Airlines,United Airlines

Aer Lingus,American Airlines, +1 more

Wednesday

Aer Lingus,American Airlines,United Airlines

Aer Lingus,American Airlines, +1 more

Thursday

Aer Lingus,American Airlines,United Airlines

Aer Lingus,American Airlines, +1 more

Friday

Aer Lingus,American Airlines,United Airlines

Aer Lingus,American Airlines, +1 more

Saturday

Aer Lingus,American Airlines,United Airlines

Aer Lingus,American Airlines, +1 more

Sunday

Aer Lingus,American Airlines,United Airlines

Aer Lingus,American Airlines, +1 more

See more direct flights

Direct returns

Dublin to Chicago

Monday

Aer Lingus,American Airlines,United Airlines

Aer Lingus,American Airlines, +1 more

Tuesday

Aer Lingus,American Airlines,United Airlines

Aer Lingus,American Airlines, +1 more

Wednesday

Aer Lingus,American Airlines,United Airlines

Aer Lingus,American Airlines, +1 more

Thursday

Aer Lingus,American Airlines,United Airlines

Aer Lingus,American Airlines, +1 more

Friday

Aer Lingus,American Airlines,United Airlines

Aer Lingus,American Airlines, +1 more

Saturday

Aer Lingus,American Airlines,United Airlines

Aer Lingus,American Airlines, +1 more

Sunday

Aer Lingus,American Airlines,United Airlines

Aer Lingus,American Airlines, +1 more

See more direct flights

Reviews of the top airline flying from Chicago to Dublin

 
See real verified KAYAK customer reviews for airlines flying from Chicago to Dublin. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Chicago to Dublin? 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 1638 reviews
6.6Food
7.2Comfort
7.0Entertainment
8.1Crew
7.4Boarding
Airline reviews

I flew Aer Lingus Business class for the first time. Having flown economy a few times, I was familiar with the airline, and happy enough with economy. I’ve certainly been in nicer economy airlines before, but Aer Lingus is usually very reasonable, and I find the staff to be kind and have an Irish sense of humor and accommodation. The business experience was good, in that you got superior service to the back, lay down seats, better food and drinks, and more attentive service. However, the plane was a bit older, the WiFi was slow(not Starlink) and the pods were too close to one another for privacy, or function. When the Oder lady to the left of me fell asleep(fully reclined) there was no way for me to escape without having to wake her and put her seat all the way up. That lead to me being stuck with luggage I couldn’t put away in a cramped(for business) space, and no way to use the restroom for almost the whole 8 1/2 hour trip. I ended up trying to sleep with a large backpack blocking my feet. The food was good for plane food, but not great. The drinks were great, shame I couldn’t have had more, but I’d have peed myself. I love a window, but next time maybe an isle seat. Overall, the experience was good, not great, but an expensive good experience during which I got zero sleep. I’d do it again, but it’d have to be a deal.

8.0 ExcellentJonathon, Jul 2026
MCO - DUB
Read more Aer Lingus reviews

I flew Aer Lingus Business class for the first time. Having flown economy a few times, I was familiar with the airline, and happy enough with economy. I’ve certainly been in nicer economy airlines before, but Aer Lingus is usually very reasonable, and I find the staff to be kind and have an Irish sense of humor and accommodation. The business experience was good, in that you got superior service to the back, lay down seats, better food and drinks, and more attentive service. However, the plane was a bit older, the WiFi was slow(not Starlink) and the pods were too close to one another for privacy, or function. When the Oder lady to the left of me fell asleep(fully reclined) there was no way for me to escape without having to wake her and put her seat all the way up. That lead to me being stuck with luggage I couldn’t put away in a cramped(for business) space, and no way to use the restroom for almost the whole 8 1/2 hour trip. I ended up trying to sleep with a large backpack blocking my feet. The food was good for plane food, but not great. The drinks were great, shame I couldn’t have had more, but I’d have peed myself. I love a window, but next time maybe an isle seat. Overall, the experience was good, not great, but an expensive good experience during which I got zero sleep. I’d do it again, but it’d have to be a deal.

The direct flight was a superb idea; please continue. The seats were less than comfortable for such a long flight.

The check in and boarding process was smooth, and the flight was fine.

We had a wonderful experience with Aer Lingus. The seats were too close for the long trip. The crew was absolutely perfect. They were so caring and thoughtful! My husband did not have a good experience with Air Lingus on the phone when trying to take care of getting better seating because he is disabled and needed a wheelchair prior to the day of our flight! Mariam R. in Boston was so helpful with seating and getting help for my husband. Filip Pytka who works for OCS was extremely helpful! He made sure that we had the lift because my husband could not climb the stairs to get onto the airplane. He took us from the gate all the way down to where we needed to be.

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

Fast and sensible boarding was absolutely amazing. But extortionate wifi and seats that barely moved, making me unable to sleep, didn't do a lot of favors.

I appteciate the very courteous staff. The flight was good. Something that wasn't good was that my bag was only checked as far as Dublin and I had a connecting flight to Vienna. (That was a mistake the ORD desk made.) Fortunately the desk at DUB was able to re-tag without me having to re-check in (which initially it seemed I might have to do.)

It was excellent! The plane left Chicago early. Arrived in Dublin early. The crew was excellent! It was a great experience.

Horrible. Garbage airline. Due to the strike we got a replacement plane/crew. I didn't get my exit row seat I paid for. Food was horrible. Plane was hot and didn't have AC vents.

Are Longus was fine. I booked thru Kayak and was unable to get my business class seat early. Sat next to galley. Crew forgot to wake me for breakfast.

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

Information on your arrival and departure airports