ORD - DUB

€208 Find Cheap Flights from Chicago O'Hare Airport to Dublin

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from O'Hare Intl to Dublin departing on 25/7. 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.
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KAYAK searches hundreds of travel sites at once for deals on flights to Dublin

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Chicago to Dublin, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Chicago to Dublin, as well as popular online travel agencies
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Cheap Flight Deals from O'Hare Intl to Dublin (ORD-DUB)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from O'Hare Intl 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.

Recent return flight deals from O'Hare Intl to Dublin

KAYAK's recommended return flight deals from the most popular airlines that fly from O'Hare Intl to Dublin.
Discover the best prices for you by selecting your travel dates on KAYAK.
Choose your dates
Scandinavian Airlines Logo
19:15 - 18:15ORD-DUB
17h 00m1 stop
Scandinavian Airlines Logo
19:05 - 16:10DUB-ORD
27h 05m1 stop
€380Scandinavian Airlines
Find Deal
Mon, 6 Oct - Wed, 15 Oct
Scandinavian Airlines Logo
19:15 - 18:15ORD-DUB
17h 00m1 stop
Scandinavian Airlines Logo
12:20 - 16:10DUB-ORD
33h 50m2 stops
€386Scandinavian Airlines
Find Deal
Mon, 6 Oct - Mon, 20 Oct
United Airlines Logo
21:31 - 07:10ORD-DUB
27h 39m1 stop
United Airlines Logo
09:20 - 11:23DUB-ORD
32h 03m1 stop
€391United Airlines
Find Deal
Sat, 16 Aug - Tue, 26 Aug
United Airlines Logo
17:56 - 07:10ORD-DUB
31h 14m1 stop
United Airlines Logo
09:50 - 09:09DUB-ORD
29h 19m1 stop
€396United Airlines
Find Deal
Sat, 9 Aug - Tue, 19 Aug
Air Canada Logo
10:40 - 07:45ORD-DUB
15h 05m1 stop
Air Canada Logo
09:20 - 14:51DUB-ORD
11h 31m1 stop
€397Air Canada
Find Deal
Wed, 13 Aug - Tue, 19 Aug
SWISS Logo
14:20 - 12:10ORD-DUB
15h 50m1 stop
SWISS Logo
13:00 - 15:55DUB-ORD
32h 55m1 stop
€398SWISS
Find Deal
Mon, 18 Aug - Mon, 25 Aug
Air Canada Logo
20:25 - 08:15ORD-DUB
29h 50m1 stop
Air Canada Logo
09:20 - 18:54DUB-ORD
15h 34m2 stops
€402Air Canada
Find Deal
Sat, 16 Aug - Tue, 26 Aug
Aer Lingus Logo
21:15 - 10:40ORD-DUB
7h 25mdirect
Aer Lingus Logo
11:35 - 14:00DUB-ORD
8h 25mdirect
€503Aer Lingus
Find Deal
Mon, 12 May - Wed, 21 May
KLM Logo
14:15 - 10:45ORD-DUB
14h 30m1 stop
KLM Logo
12:00 - 19:18DUB-ORD
13h 18m1 stop
€525KLM
Find Deal
Tue, 27 May - Tue, 10 Jun
Aer Lingus Logo
15:45 - 05:10ORD-DUB
7h 25mdirect
Aer Lingus Logo
11:35 - 14:00DUB-ORD
8h 25mdirect
€532Aer Lingus
Find Deal
Tue, 13 May - Tue, 20 May

KAYAK's insights & trends for O'Hare Intl to Dublin flights

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

What’s the cheapest day of the week to fly from Chicago O'Hare Airport to Dublin?

The average price of all round-trip flights from Chicago O'Hare Intl Airport to Dublin clicked on KAYAK for each day over the last 12 months.
Your flight ticket price will generally be cheaper if you fly to Dublin on a Saturday and more expensive on a Tuesday. On your return trip to Chicago O'Hare Airport, you should consider flying back on a Monday, and avoid Sundays for better deals.

What is the cheapest month to fly from Chicago O'Hare Intl Airport to Dublin?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Chicago O'Hare Intl Airport 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 O'Hare Intl Airport to Dublin is November, where tickets cost €460 (return) on average. On the other hand, the most expensive months are June and July, where the average cost of round-trip tickets is €844 and €769 respectively.

Can I save money by flying with a stopover from Chicago O'Hare Intl Airport 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.
No, with an average price for the route of €509, prices are generally cheapest when you fly direct.

How far in advance should I book a flight from Chicago O'Hare Intl Airport 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 O'Hare Intl Airport 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 O'Hare Intl Airport to Dublin, you should book around 3 weeks before departure. For the absolute cheapest price, our data suggests you should book 10 weeks before departure.

Good to know

Low season

January

High season

September

Cheapest flight

€208
Best time to beat the crowds (25% less expensive on average)
Most popular time to fly and prices are also 8% lower on average.
Flight from Chicago O'Hare Airport to Dublin

When to book flights from O'Hare Intl to Dublin

Are your dates flexible? Find out the best times to travel from O'Hare Intl 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 Chicago O'Hare Airport to Dublin flights

  • What is the cheapest flight from Chicago O'Hare Intl Airport to Dublin?

    In the last 3 days, the lowest price for a flight from Chicago O'Hare Intl Airport to Dublin was €236 for a one-way ticket and €432 for a return.

  • Which airlines offer Wi-Fi service onboard planes from Chicago O'Hare Airport to Dublin?

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

  • Which aircraft models fly most regularly from Chicago O'Hare Airport to Dublin?

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

  • Which airline alliances offer flights from Chicago O'Hare Airport to Dublin?

    oneworld, and Star Alliance are the airline alliances operating flights between Chicago O'Hare Airport and Dublin, with Star Alliance being the most commonly used for this route.

  • On which days can I fly direct from Chicago O'Hare Airport to Dublin?

    There are direct flights from Chicago O'Hare Airport to Dublin on a daily basis.

  • Which is the best airline for flights from Chicago to Dublin, KLM or Aer Lingus?

    The two airlines most popular with KAYAK users for flights from Chicago to Dublin are KLM and Aer Lingus. With an average price for the route of €1,046 and an overall rating of 7.8, KLM is the most popular choice. Aer Lingus is also a great choice for the route, with an average price of €694 and an overall rating of 7.0.

  • How does KAYAK find such low prices on flights from Chicago O'Hare Airport 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 O'Hare Airport to Dublin.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Dublin from Chicago O'Hare Airport 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 O'Hare Airport 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 O'Hare Airport with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Chicago O'Hare Airport 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 O'Hare Airport up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

KAYAK’s top tips for finding a cheap flight from Chicago O'Hare Intl Airport to Dublin

  • Looking for a cheap flight? 25% of our users found flights on this route for €642 or less round-trip.

Prefer to fly direct from Chicago O'Hare Intl to Dublin?

Find which airlines fly direct from Chicago O'Hare Intl Airport to Dublin Airport, which days they fly and book direct flights.

Direct departures

Chicago O'Hare Intl to Dublin

Monday

Aer Lingus, Air Canada, American Airlines, +8 more

Aer Lingus, Air Canada, +9 more

Tuesday

Aer Lingus, Air Canada, American Airlines, +8 more

Aer Lingus, Air Canada, +9 more

Wednesday

Aer Lingus, Air Canada, American Airlines, +8 more

Aer Lingus, Air Canada, +9 more

Thursday

Aer Lingus, Air Canada, American Airlines, +8 more

Aer Lingus, Air Canada, +9 more

Friday

Aer Lingus, Air Canada, American Airlines, +8 more

Aer Lingus, Air Canada, +9 more

Saturday

Aer Lingus, Air Canada, American Airlines, +8 more

Aer Lingus, Air Canada, +9 more

Sunday

Aer Lingus, Air Canada, American Airlines, +8 more

Aer Lingus, Air Canada, +9 more

See more direct flights

Direct returns

Dublin to Chicago O'Hare Intl

Monday

Aer Lingus, Air Canada, American Airlines, +9 more

Aer Lingus, Air Canada, +10 more

Tuesday

Aer Lingus, Air Canada, American Airlines, +8 more

Aer Lingus, Air Canada, +9 more

Wednesday

Aer Lingus, Air Canada, American Airlines, +9 more

Aer Lingus, Air Canada, +10 more

Thursday

Aer Lingus, Air Canada, American Airlines, +9 more

Aer Lingus, Air Canada, +10 more

Friday

Aer Lingus, Air Canada, American Airlines, +9 more

Aer Lingus, Air Canada, +10 more

Saturday

Aer Lingus, Air Canada, American Airlines, +9 more

Aer Lingus, Air Canada, +10 more

Sunday

Aer Lingus, Air Canada, American Airlines, +9 more

Aer Lingus, Air Canada, +10 more

See more direct flights
See more direct flights

Top 4 airlines serving from O'Hare Intl 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 O'Hare Intl 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.
7.8
KLMOverall score based on 1323 reviews
8.4Crew
7.3Food
7.8Boarding
7.1Entertainment
7.7Comfort
Airline reviews

Legroom not all it could be, especially when the seat in front is reclined. Otherwise it was good, food and beverage were nice.

8.0 ExcellentAnonymous, Apr 2025AMS - INL
Read more KLM reviews

Legroom not all it could be, especially when the seat in front is reclined. Otherwise it was good, food and beverage were nice.

This portion of the flight was through Indigo. A local carrier. So all economy seating. No real service some refreshments for purchase standard economy stuff.

You should not have to pay for WiFi in business class

Transfer at Amsterdam airport is very convenient and the airport is easy to navigate. Boarding was also quick and easy. Cabin crew were excellent and the meals were good, although lacking in options.

Overall very positive. Boarding was quick and organized. Cabin was clean and seats were reasonably comfortable. Cabin crew was excellent and the meals provided were also of good quality

This fight left ahead of time which meant it arrived early which was great. Staff were very professional, but as with all these Short hop Flights the food was a disappointing snack There was no entertainment on this flight, but I did not expect any

They only had vegetarian food left on the flight which I wasn’t happy about. I didn’t get any food to eat at all.

Overall very poor. Flight was disorganised, staff were rude and this is my second experience with KLM that I've had baggage go missing. It feels like, if you are an economy customer, KLM staff do not show you any care. I shall never fly with KLM again. Worst airline in Europe

Great boarding, great short flight but no entertainment whatsoever and no wifi. Prepare to disembark by a staircase.

Great boarding, great short flight but no entertainment whatsoever. It was supposed to have wifi but that did not work.

I have long legs, my foot was out in the aisle and when a flight attendant came walking by and I didn't notice, instead of saying "excuse me" or anything like that, she kicked my foot. Extremely rude

Excellent! The gate agents were kind enough to rebook me on an earlier flight saving me from a 6 hour layover. Even my luggage made it despite the fact that the connection was technically too narrow. The flight itself was very comfortable, roomy, and clean. Plenty of space for my carryon items with plugs to charge my phone. After a long international flight of 14 hours, this was an excellent way to end my travels!

Great experience. Flight boarded easily. Departed early. Smooth flight. Great arrival in DC--almost no taxing! Almost direct to gate from runway. Crew was terrific. Same cookies and beverages in main cabin. I did not use the entertainment system on this flight.

This particular flight wasn't very full at the back, so there were three seats available for spreading out and getting relatively comfortable

Most of the delay was due to weather which is not what was at issue here. One delay was due to a missing flashlight and in the end the flashlight was actually found on the plane. The entertainment system is very limited. Live TV options offer only a few channels that are not very appealing. Boarding and deplaning are always difficult. It just takes too much time to get on and off the plane. On the plus side, I missed my connecting flight, but was easily able to book a later flight from the app while enroute.

You were more on time than United. I'm so over united delays.

The meals were mediocre and the alcohol selection was poor. I enjoyed the selection of movies and other entertainment.

I chatted with the captain before the flight, and similarly during the welcome announcement, he warned of a turbulent flight that may impact the in-flight service. However, once at altitude, he announced that the weather changed and he immediately turned off the seatbelt sign. But it appeared the cabin crew had already decided to take off this flight. They remained seated and then just chatted in the galley. The flight was fully catered, but only first class received service.

My flight attendant was attentive! The elderly person next to me was flatulent and the flight attendant could see that I was in distress and brought me some face masks

My boarding pass wouldn't pull up in the app very easily and had to really dig through my email. That caused a delay in TSA..

Boarding seemed a bit chaotic and we had to walk outside across the tarmac. Passengers of all ages had to drag carry on luggage up the outside stairway into the aircraft. There was no WiFi. Very uncomfortable crammed seats. Glad in-air time was only an hour!

Booked through Kayak, couldnt take flight, Kayak punted to Orbiz, Orbiz punted to Aer Lingus, Aer Lingus said sorry about your luck, try Kayak/Orbiz. Terrible customer service collecting air fares and not even offering a voucher when customers cant take flight

There was no flight. I booked a flight from Toronto to Bordeaux with a stopover in Dublin. I arrived in Dublin and the flight number I had didn't exist and the flight going to Bordeaux I wasn't on. I had to book a new flight with a different airline for later in the day and pay out of pocket.

Gate agents kind of serious. Had to wait til arriving at gate to choose seats. Thankfully they did give us seats together! And grateful the honored our age, giving us seats at the front.

Very polite and helpful staff. Jet blue…ok, but not as helpful!..

Seat was very uncomfortable. The worst in all of my travels. It sagged in the middle, worse than anything any airline can offer. Not flying aer lingus again.

My Aer Lingus flight (booking ref # 2SU4LF) was the worst travel experience I have ever dealt with. My flight from Paris to Dublin was delayed by over 2 hours which caused me to miss my connecting flight back to the US. I was not able to be rebooked on a new flight for another 3 days. When I finally made it on my rescheduled flight, it was delayed AGAIN, causing me to miss my connecting flight from New York to Boston. At this point I decided to just rent a car since the next flight I would have been able to get in wasn’t for another 5 hours. It was a complete nightmare experience and I will never fly Aer Lingus again. I have requested a refund from the booking company I placed my order with.

Flight was cancelled. There were no Aer Lingus reps to help. I had to rebook my flight and find a hotel. Still had nothing from the airline.

They couldn't do through check-in for us. They took 2 hours to issue just one leg of the boarding pass. They had no idea to handle the case of passengers who travels to USA via Dublin airport. we had tough time time Dublin airport as boarding pass for the US flight was not pre-issued. Hope Aer Lingus will learn to handle such cases which they couldn't learn in in the past 50 years of the service.

There was a very drunk and disruptive passenger who was on the plane, right behind me. He was already drunk before boarding but was still let on the plane. He kept kicking and hitting the back of my chair the entire flight. It was an early morning flight and had zero rest on that leg

Business class seats were very dated on my plane. Very little storage, charging ports were not easily accessible, tv screen kept flopping away. Vegetarian food was disappointing: hardly any protein and severely under-seasoned. Crew was lovely.

The food was ok, but not great. They delayed boarding in Portland and did not enforce group boarding. But the crew was excellent, went above and beyond.

The food was pathetic. There wasn't much leg room and recline space for such a long flight. No tea/ coffee for a 2-3 hour connecting flight without purchasing! Really!?

Flight was delayed and there was boarding pass and flight information errors resulting in confusion and stress

Service was very good. Because I use a cane, I was allowed to use Priority Boarding. Biggest problem was extremely limited leg room in Economy class seats. For airplane food, it was alright.

Was late but that airport/storm fault. Flight was full but comfortable. Food quite nice. Unfortunate that I had a rather miserable attendant, others were much friendlier

Experience was good. Could have been better if we didn’t have to board an hour before the flight to ghana and miss relaxing time in the lounge. That process was very stressful

Boarding crew is unfriendly as i was asked to handover carryon luggage too upto final destination Bangalore I was not prepared for that and i had to travel without my diabetic and hypertension medicines

I was charged fees for check in bags at the airport by British Airways. It was supposed to be no charge but Kayak messed up my booking apparently and I had to pay for check in bags. I paid $175.

They took my carry on and checked it in. Staff in general at Heathrow are not friendly or helpful

Everything you need to know for your flight from O'Hare Intl to Dublin

Information on your arrival and departure airports

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