ORD - DUB

€194 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 25/1. 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 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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Flight Deals

Cheap Flights 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.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from O'Hare Intl to Dublin

Tue, 18 Nov - Tue, 25 Nov
United Airlines Logo
18:35 - 08:10ORD-DUB
7h 35mdirect
United Airlines Logo
10:40 - 13:30DUB-ORD
8h 50mdirect
€402United Airlines
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Sun, 9 Nov - Tue, 18 Nov
United Airlines Logo
18:35 - 08:10ORD-DUB
7h 35mdirect
United Airlines Logo
10:40 - 13:30DUB-ORD
8h 50mdirect
€403United Airlines
Find Deal
Wed, 26 Nov - Tue, 2 Dec
Scandinavian Airlines Logo
19:20 - 11:45ORD-DUB
34h 25m1 stop
Scandinavian Airlines Logo
12:30 - 16:45DUB-ORD
34h 15m1 stop
€404Scandinavian Airlines
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Wed, 1 Apr - Fri, 10 Apr
United Airlines Logo
18:04 - 10:20ORD-DUB
10h 16m1 stop
United Airlines Logo
09:50 - 15:10DUB-ORD
11h 20m1 stop
€405United Airlines
Find Deal
Sun, 7 Dec - Thu, 18 Dec
United Airlines Logo
17:25 - 09:55ORD-DUB
10h 30m1 stop
United Airlines Logo
10:40 - 13:30DUB-ORD
8h 50mdirect
€406United Airlines
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Sat, 28 Mar - Wed, 8 Apr
Air Canada Logo
18:04 - 07:15ORD-DUB
32h 11m2 stops
Air Canada Logo
09:50 - 15:10DUB-ORD
11h 20m1 stop
€407Air Canada
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Wed, 3 Dec - Tue, 9 Dec
Delta Logo
08:55 - 08:45ORD-DUB
17h 50m2 stops
Delta Logo
13:25 - 14:20DUB-ORD
30h 55m1 stop
€408Delta
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Wed, 25 Mar - Tue, 7 Apr
Delta Logo
07:30 - 07:50ORD-DUB
19h 20m2 stops
Delta Logo
06:00 - 14:20DUB-ORD
14h 20m1 stop
€412Delta
Find Deal
Mon, 9 Feb - Mon, 16 Feb
Scandinavian Airlines Logo
07:01 - 11:45ORD-DUB
22h 44m2 stops
Scandinavian Airlines Logo
20:20 - 16:45DUB-ORD
50h 25m2 stops
€418Scandinavian Airlines
Find Deal
Fri, 24 Apr - Tue, 28 Apr
Aer Lingus Logo
20:50 - 10:15ORD-DUB
7h 25mdirect
Aer Lingus Logo
11:35 - 14:00DUB-ORD
8h 25mdirect
€443Aer Lingus
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Everything you should know

Top airlines
United Airlines
Cheapest • from €402 (return)
United Airlines
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to book
2 weeks
in advance
Our data shows that travellers who book at least 2 weeks in advance save around 16% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
January
Cheapest • 23% price drop
September
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Cheapest return fare
€402
Overall average: €530
United Airlines
Tue 18/11Tue 25/11
ORD - DUB • Direct
Cheapest direct flights
€402
Typical prices: €469-€673
United Airlines
Tue 11/11Tue 18/11
ORD - DUB • Direct
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Booking Insights

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 Thursday and more expensive on a Saturday. On your return trip to Chicago O'Hare Airport, you should consider flying back on a Wednesday, and avoid Tuesdays 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 January, where tickets cost €462 (return) on average. On the other hand, the most expensive months are June and July, where the average cost of round-trip tickets is €783 and €693 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 €491, 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 2 weeks before departure, which saves you about 16% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 5 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight€194
Best time to beat the crowds (24% less expensive on average)
Most popular time to fly and prices are also 0% 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 €194 for a one-way ticket and €402 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, British Airways, Iberia, Lufthansa, and United Airlines.

  • 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?

    Star Alliance is the only airline alliance operating flights between Chicago O'Hare Airport and Dublin.

  • 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, United Airlines or Aer Lingus?

    The two airlines most popular with KAYAK users for flights from Chicago to Dublin are United Airlines and Aer Lingus. With an average price for the route of €627 and an overall rating of 7.4, United Airlines is the most popular choice. Aer Lingus is also a great choice for the route, with an average price of €626 and an overall rating of 7.2.

  • 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.

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 €491 or less round-trip.

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

 
Nonstop data is based off flight results for the next 60 days. Find direct flights from all airlines flying nonstop 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, United Airlines

Aer Lingus, United Airlines

Tuesday

Aer Lingus, United Airlines

Aer Lingus, United Airlines

Wednesday

Aer Lingus, United Airlines

Aer Lingus, United Airlines

Thursday

Aer Lingus, United Airlines

Aer Lingus, United Airlines

Friday

Aer Lingus, United Airlines

Aer Lingus, United Airlines

Saturday

Aer Lingus, United Airlines

Aer Lingus, United Airlines

Sunday

Aer Lingus, United Airlines

Aer Lingus, United Airlines

See more direct flights

Direct returns

Dublin to Chicago O'Hare Intl

Monday

Aer Lingus, United Airlines

Aer Lingus, United Airlines

Tuesday

Aer Lingus, United Airlines

Aer Lingus, United Airlines

Wednesday

Aer Lingus, United Airlines

Aer Lingus, United Airlines

Thursday

Aer Lingus, United Airlines

Aer Lingus, United Airlines

Friday

Aer Lingus, United Airlines

Aer Lingus, United Airlines

Saturday

Aer Lingus, United Airlines

Aer Lingus, United Airlines

Sunday

Aer Lingus, United Airlines

Aer Lingus, United Airlines

See more direct flights

Reviews of the top airlines flying 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.
7.4
United AirlinesOverall score based on 9001 reviews
6.6Food
7.7Boarding
7.1Entertainment
8.1Crew
7.3Comfort
Airline reviews

Excellent flight. Smooth, efficient boarding. Quick flight. Arrived early at STL.

10.0 ExcellentDr. Joseph, Oct 2025ORD - STL
Read more United Airlines reviews

Excellent flight. Smooth, efficient boarding. Quick flight. Arrived early at STL.

Not the fault of United—weather, reroute around weather, time sitting on tarmac, arrived couple hours late, too late for train into city necessitating a much pricier cab but weather…can’t be helped.

I will never book a flight through Cheap fare. They booked me from Portland Main . And would not give me a refund, so I bought 2 tickets one for 299. From Portland Main to ORD. Then I had to buy a ticket from Oregon PDX to ORD that was another 440. So Just so you know they even told me it was there fault but no refund. Bad bussniess. I did inform United but they said they couldn't help me due to the fact I booked through Cheap Tickets. Never again. And I'm spreding the word. I let everyone know at my 50th class reunion

The flight attendants were rude. Seemed like they didn’t want to be there. Except for one girl that was really nice. Seats are sooooo uncomfortable. They give you a piece of paper and a thin cushion for a pillow and blanket that does nothing. Airlines have gone way downhill, especially United international flights. Food was disguting. Definitely flying ANA next time.

Crew and customer service were excellent. This flight also had plenty of leg room and seat mounted screens for entertainment. A very pleasant flight all around!

It would have been better if the crew has supported my husband's reasons for needing to keep the space clear around his feet, rather than insisting that he put his knapsack in that space.

Subject: Formal Complaint: Discriminatory and Unprofessional Conduct – Request for Immediate Action & Compensation Dear [Airline Customer Relations Team], I am writing to file a formal complaint regarding my recent travel experience with [Airline], which was by far the worst I have ever encountered. What occurred was not only unprofessional, but in several instances discriminatory, unsafe, and unacceptable. On the first leg of my trip, I arrived only four minutes past check-in. Instead of making any attempt to resolve the matter, your representative flatly denied me boarding and made me wait while she attended to passengers who arrived after me. By the time a manager intervened, it was too late to board, costing me time, money, and unnecessary frustration. The second leg of my trip (Chicago–San Francisco) raised even more serious concerns. From the outset, it was apparent that the staff—particularly two attendants—prioritized Caucasian passengers while dismissing African American and minority passengers. • When a Caucasian passenger in the exit row refused to comply with federal safety requirements, I, as a first responder, immediately offered to switch seats and assume the responsibility. My offer was blatantly ignored, and instead, a Caucasian passenger seated further up was chosen. This was discriminatory and deeply insulting, especially as I was actively de-escalating the situation that could have delayed the flight further. • During a lengthy tarmac delay of over 90 minutes, passengers were given conflicting and unreasonable instructions that created unnecessary distress and tension. • Throughout the flight, a visibly intoxicated passenger directly in front of me was disruptive, rude to others, failed to comply with seatbelt and electronic device rules, and yet faced no enforcement from the crew. In stark contrast, I was singled out for repeated compliance checks even though I was following every rule. This unequal treatment was so obvious that multiple passengers around me spoke up in my defense. This pattern of behavior demonstrated a clear lack of professionalism, disregard for passenger safety, and discriminatory treatment. I expect far better from an airline of your stature. As a paying customer subjected to this unacceptable treatment, I am formally requesting: 1. A full investigation into the conduct of the staff on both flights. 2. A written apology acknowledging the discriminatory and unprofessional behavior I endured. 3. Appropriate compensation for the distress, inconvenience, and mishandling of my travel. If this matter is not addressed promptly and thoroughly, I will have no choice but to escalate my complaint further, including filing with the U.S. Department of Transportation and sharing my experience through other channels. I trust [Airline] will take this complaint seriously and provide a timely resolution.

Check in was quick and easy during early hours. Flight was on time, and customer services was a plus.

Once we got in the air the pilot made up some of the time of the delay. So that was really nice.

We had a layover from YVR to Denver. We bought 4 bottles of Absolut Vodka at the YVR Duty Free for $116.20, after going through security and American Customs Pre Clearance at YVR, Vancouver. When we landed in Denver, United put us behind the American Customs as well as TSA again for some reason. We were forced to go through American Customs and TSA again. TSA confiscated our rightfully owned Duty Free Absolut Vodka bottles. Because United incorrectly forced our flight behind American border and TSA again, we missed the connecting flight. After United put us on a later flight, we eventually arrived in Chicago very late, with hardly any sleep. I am looking for compensation from United for our incorrectly confiscated Absolut Vodka bottles worth $116.20, as well as compensation for incorrectly putting us behind American Customs and TSA again, causing us to miss our connecting flight, making us arrive extremely late in Chicago.

Staff was generally friendly and helpful. Attendants collecting trash were somewhat inattentive though.

This flight left about 45 minutes late, and arrived about 45 minutes late, which was enough to make us miss our next flight and trap us in Dublin for 24 hours!!

I think the extra charges for seating with no added advantage and the added charges for baggage are excessive compared to other airlines.

I had zero issues with the flight. I did have issues with the staff at the airport. We missed out flight due to a delay with another airline. Talking to the staff and trying to get a new flight arranged was challenging. One guy was able to try to help us and got us on a new flight, but other staff was dismissive and clearly let us know it wasn’t their problem. All I kept thinking was… this is why air lingus has such a poor customer service reputation. I will be avoiding this airline in the future.

Food was just okay. Was surprised initially when was charged for a cup of tea when they first came through cabin for beverages. I’ve had far better long distance flights ( take some tips from Swiss airlines)

The boarding process was not good. From check-in, there was only one desk for check-in, which made for a very long line. I asked to print out my boarding pass for the next leg of my trip, also via Aer Lingus, and they said they couldn't. I was unable to do this on the app or online, either. Many fellow passengers I spoke to had the same issue. Because the plane was delayed taking off by 90 minutes, everyone had to quickly go to a desk for their next boarding pass which was chaos. Overall it wasn't a smooth or happy experience.

UNDERPRISER IS A CRIMINAL ORGANIZATION. I WILL NEVER LET THEM MANAGE ANOTHER TRIP. THEY ESSENTIALLY WERE TRYING TO EXTORT ME FOR "Permission" FROM THEM not TO USE MY ROME TO DUBLIN FLIGHT. I did not use this flight, and despite many communications with both Aer Lingus and Underpricers, to the end, they insisted I could not do this, while Aer Lingus kept telling me there was no problem. And in fact, I had zero problems catching that second leg of the trip home from Dublin to LAX.. As if harrassment, underpricers sent me a rude and insensitve email insisting Aer Lingus would not honor the flight home to LAX from DUB. ON THE MORNING OF THE TRAVEL!!! KAYAK SHOULD NOT USE UNDERPRICER "services" They are dishonest and sadistic.

We left 2 1/2 hours late. It wasn't the airlines fault but they did nothing to help the situation. Even water had a price tag. The next flight was better.

They specifically asked about my flight from bordeaux to Dublin, which was fine. A little lacking but for a 1 and a half hour flight - it was more than enough. I transferred at Dublin and went to Newark. And wow that flight was incredible.

I liked that I went thru customs in Dublin instead of having to do that in LA.

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

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