£281 Cheap Flights from Chicago (ORD) to Dublin (DUB)

View £281 flight on Tue, 28 Jul 2026Opens in a new window

Popular airlines from Chicago O'Hare International Airport (ORD) to Dublin Airport (DUB)

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Cheap Flights from Chicago (ORD) to Dublin (DUB)

Prices were available within the past 7 days and start at £281 for one-way flights and £479 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

TAP Portugal
Wed, 7 Oct - Tue, 15 Dec
ORD
Chicago
DUB
Dublin
£479 Return, found 5 days ago
£479
Return
found 5 days ago
Select TAP Portugal flight, departing Wed, 7 Oct from Chicago to Dublin, returning Tue, 15 Dec, priced at £479 found 5 days ago
TAP Portugal
Fri, 30 Oct - Fri, 6 Nov
ORD
Chicago
DUB
Dublin
£493 Return, found 1 day ago
£493
Return
found 1 day ago
Select TAP Portugal flight, departing Fri, 30 Oct from Chicago to Dublin, returning Fri, 6 Nov, priced at £493 found 1 day ago
TAP Portugal
Wed, 4 Nov - Sat, 14 Nov
ORD
Chicago
DUB
Dublin
£498 Return, found 4 days ago
£498
Return
found 4 days ago
Select TAP Portugal flight, departing Wed, 4 Nov from Chicago to Dublin, returning Sat, 14 Nov, priced at £498 found 4 days ago
United
Sun, 6 Sept - Thu, 17 Sept
ORD
Chicago
DUB
Dublin
£510 Return, found 6 days ago
£510
Return
found 6 days ago
Select United flight, departing Sun, 6 Sept from Chicago to Dublin, returning Thu, 17 Sept, priced at £510 found 6 days ago
American Airlines
Tue, 17 Nov - Fri, 15 Jan
ORD
Chicago
DUB
Dublin
£511 Return, found 6 days ago
£511
Return
found 6 days ago
Select American Airlines flight, departing Tue, 17 Nov from Chicago to Dublin, returning Fri, 15 Jan, priced at £511 found 6 days ago
KLM
Mon, 26 Oct - Mon, 2 Nov
ORD
Chicago
DUB
Dublin
£513 Return, found 2 days ago
£513
Return
found 2 days ago
Select KLM flight, departing Mon, 26 Oct from Chicago to Dublin, returning Mon, 2 Nov, priced at £513 found 2 days ago
Aer Lingus
Wed, 2 Sept - Wed, 9 Sept
ORD
Chicago
DUB
Dublin
£513 Return, found 6 hours ago
£513
Return
found 6 hours ago
Select Aer Lingus flight, departing Wed, 2 Sept from Chicago to Dublin, returning Wed, 9 Sept, priced at £513 found 6 hours ago
Lufthansa
Wed, 7 Oct - Tue, 15 Dec
ORD
Chicago
DUB
Dublin
£514 Return, found 5 days ago
£514
Return
found 5 days ago
Select Lufthansa flight, departing Wed, 7 Oct from Chicago to Dublin, returning Tue, 15 Dec, priced at £514 found 5 days ago
Delta
Tue, 1 Sept - Thu, 17 Sept
ORD
Chicago
DUB
Dublin
£515 Return, found 6 days ago
£515
Return
found 6 days ago
Select Delta flight, departing Tue, 1 Sept from Chicago to Dublin, returning Thu, 17 Sept, priced at £515 found 6 days ago
Air Canada
Tue, 1 Sept - Tue, 8 Sept
ORD
Chicago
DUB
Dublin
£515 Return, found 1 day ago
£515
Return
found 1 day ago
Select Air Canada flight, departing Tue, 1 Sept from Chicago to Dublin, returning Tue, 8 Sept, priced at £515 found 1 day ago

Alternative airports near Dublin

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Dublin Airport DUB. Cheapest and Closest option available. Average driving time to city centre is 14 minutes. Flights from £655
DUB
Dublin Airport
CheapestClosest
Average driving time to city centre14 min
Flights from £655

Find the cheapest month to fly from Chicago (ORD) to Dublin (DUB)

November is typically the cheapest month to fly

From £349 - £602 per traveller.

Frequently asked questions

How much does a flight from Chicago, IL (ORD-O'Hare Intl.) to Dublin (DUB) cost?
One-way flights typically cost between £563 and £4,864 and return flights often range between £563 and £4,864. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when Anaa (AAA) to Toronto, ON (YYZ-Pearson Intl.) ticket fares go up or down.
What is the cheapest month to fly from Chicago, IL (ORD-O'Hare Intl.) to Dublin (DUB)?
February is typically the cheapest month to fly from Chicago O'Hare International Airport (ORD) to Dublin (DUB), with average return fares of approximately £467. This is about 18% lower than the average price throughout the year. February often sees lower prices as it's outside of peak holiday seasons, leading to less demand. Other cheap months to fly from Chicago O'Hare International Airport (ORD) to Dublin (DUB) include January and November.
Which airlines fly direct from Chicago, IL (ORD-O'Hare Intl.) to Dublin (DUB)?
Enter ORD to DUB and your travel dates, then apply the 'Nonstop' filter to see only direct flights.
How do I find cheap flights from Chicago, IL (ORD-O'Hare Intl.) to Dublin (DUB)?
To find a cheap flight from Chicago, IL (ORD-O'Hare Intl.) to Dublin (DUB), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best airline to fly with from Chicago, IL (ORD-O'Hare Intl.) to Dublin (DUB)?
The best airline to fly with from Chicago, IL (ORD-O'Hare Intl.) (ORD) to Dublin (DUB) (DUB) will differ from traveller to traveller. If you like to fly early, EI offers early morning flights. If price is the most important factor, UA typically offers the lowest fares. AA offers the most daily flights from Chicago, IL (ORD-O'Hare Intl.) (ORD) to Dublin (DUB) (DUB), which is great if flexibility is what you value most. The best carrier for this journey could also be the one you have a loyalty membership with, as flying with that airline or another airline within the same alliance could help you collect points or enjoy lounge access.
What is the best time to fly from Chicago, IL (ORD-O'Hare Intl.) to Dublin (DUB)?
When looking for the best time to fly from Chicago, IL (ORD-O'Hare Intl.) to Dublin (DUB), you'll find that February and November are typically the cheapest months, with average return flight prices around £467. However, if you're looking for a balance of good prices and plenty of flight options, you might consider May or October, which are the most popular months for travel. While these months might not be the absolute cheapest, they offer a high volume of flights, giving you more flexibility in choosing your travel times and airlines. This information is based on booking data from the past year.
How many flights per day from Chicago, IL (ORD-O'Hare Intl.) to Dublin (DUB)?
There are approximately 4 nonstop flights per day from Chicago, IL (ORD-O'Hare Intl.) to Dublin (DUB). For even more choice, look at flights that include layovers, as there are around 197 connecting flights per day. Some common connection points include John F. Kennedy Intl. (JFK), Heathrow (LHR), and Logan Intl. (BOS).
What is the earliest flight from Chicago, IL (ORD-O'Hare Intl.) to Dublin (DUB)?
Sort flights by "Departure (earliest)" on Expedia to find the earliest flight from ORD to DUB. To compare more early flights, use the "Early Morning" and "Morning" filters in your search.
What day of the week has the most flights from Chicago, IL (ORD-O'Hare Intl.) to Dublin (DUB)?
You'll typically find the most flights from Chicago, IL (ORD-O'Hare Intl.) (ORD) to Dublin (DUB) (DUB) on a Friday, with around 109 flights available. This gives you plenty of options for your travel plans. Major airlines on this route include American Airlines, United Airlines, and Delta Air Lines. Fridays offer notably more flight options compared to other days of the week.
What are the most popular departure times for flights from Chicago, IL (ORD-O'Hare Intl.) to Dublin (DUB)?
The most popular departure times for flights from Chicago, IL (ORD-O'Hare Intl.) to Dublin (DUB) are in the evening, from 6pm to 9pm. Approximately 26% of passengers prefer this time window. Many major carriers, including United Airlines, Aer Lingus and American Airlines, offer flights during this window. These times work well because you can maximise your day in Chicago before your evening flight, and you'll arrive in Dublin in the morning, ready to start your day.
How long does it take to fly from Chicago, IL (ORD-O'Hare Intl.) to Dublin (DUB)?
Direct flights from ORD to DUB usually take about 7 hours 30 minutes, traveling roughly 3,664 miles. If you opt for a connecting flight, expect to add around 5 hours 50 minutes to your journey. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Chicago, IL (ORD-O'Hare Intl.) to Dublin (DUB)?
Select the "Business class" and "First class" filters when looking for ORD to DUB flights on Expedia. This is the easiest way to compare prices, routes and flight times for your trip.
How do I earn miles on a Chicago, IL (ORD-O'Hare Intl.) to Dublin (DUB) flight with Expedia?
It's easy to earn miles on a Chicago, IL (ORD-O'Hare Intl.) to Dublin (DUB) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia. *Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
Is it cheaper to buy a plane ticket from Chicago, IL (ORD-O'Hare Intl.) to Dublin (DUB) at the last minute?
Typically, booking a last minute flight from Chicago, IL (ORD-O'Hare Intl.) to Dublin (DUB) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Chicago, IL (ORD-O'Hare Intl.) to Dublin (DUB) flight and hotel package?
Securing a Chicago, IL (ORD-O'Hare Intl.) to Dublin (DUB) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Chicago, IL (ORD-O'Hare Intl.) to Dublin (DUB)?
If you booked your Chicago, IL (ORD-O'Hare Intl.) to Dublin (DUB) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
O'Hare Intl.
Destination airport
Dublin
Airlines serving
Aer Lingus, Air Canada, Air France, American Airlines, British Airways, Brussels Airlines, Delta, Finnair, Iberia, Icelandair, JetBlue Airways, KLM, Lufthansa, Scandinavian Airlines, Swiss International Air Lines, TAP Portugal, Turkish Airlines, United
Return price
£479
Distance
5862 km
Average flight time
13 hours 28 mins

Book with confidence

Compare flights from Chicago to Dublin easily and book with confidence

For travelling on business or for pleasure, Expedia makes it easy to book your flights from Chicago to Dublin. Operating between them flights per day, 20 airlines cover the route. And fly direct, getting you to Dublin in just hours. If you have a preferred carrier, use our advanced search tool to find the right flight from O'Hare Intl. to Dublin.  

To make things even better, in the advanced search, you can also choose to fly economy, premium economy, business or first class, select your maximum number of stops, and pick your preferred departure and arrival time. You can also opt for refundable and direct flights. 

Grab a great deal on your flight from O'Hare Intl. (ORD) to Dublin (DUB)

The easiest way to view the best deals on flights from Chicago to Dublin today is to enter your travel dates and hit search. From here, you can sort your results by price to see the cheapest flights first. Right now, return flights from O'Hare Intl. to Dublin start at just £479 and range up to £515.  

To find an even better deal, try  

  • being flexible on your dates – midweek flights can be cheaper
  • looking for other airports near Chicago and Dublin
  • booking your flight during October, the cheapest month on this route
  • varying your flight times – early morning and late at night are sometimes cheaper 

Why you should book your Chicago to Dublin flight with Expedia!

We cater for all flight types, cabin classes and airlines. So whether you’re booking flights from O'Hare Intl. to Dublin for a budget break or a business trip with a bit of pleasure thrown in, we make it easy to secure the seat that’s right for you.  

Thanks to our supersized inventory that offers great choice all in one place, you know you’ll get a great deal with Expedia. Especially if you bundle your flight together with your hotel, you will unlock amazing savings. For added peace of mind, you can choose flexible bookings or filter to find refundable options, so you won’t pay a fee to change your flight.  

Compare flights from Chicago to Dublin easily and book with confidence

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