$388 Cheap Flights from Chicago (ORD) to Dublin (DUB)

View $388 flight on Sun, May 3, 2026Opens in a new window

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

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Cheap Flights from Chicago to Dublin (ORD-DUB)

Prices were available within the past 7 days and start at $388 for one-way flights and $457 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Scandinavian Airlines
Mon, Apr 20 - Thu, Apr 30
ORD
Chicago
DUB
Dublin
$457 Roundtrip, found 6 hours ago
$457
Roundtrip
found 6 hours ago
Select Scandinavian Airlines flight, departing Mon, Apr 20 from Chicago to Dublin, returning Thu, Apr 30, priced at $457 found 6 hours ago
Scandinavian Airlines
Wed, Nov 18 - Sun, Nov 29
ORD
Chicago
DUB
Dublin
$480 Roundtrip, found 5 days ago
$480
Roundtrip
found 5 days ago
Select Scandinavian Airlines flight, departing Wed, Nov 18 from Chicago to Dublin, returning Sun, Nov 29, priced at $480 found 5 days ago
Scandinavian Airlines
Sat, Jan 16 - Sat, Jan 23
ORD
Chicago
DUB
Dublin
$484 Roundtrip, just found
$484
Roundtrip
just found
Select Scandinavian Airlines flight, departing Sat, Jan 16 from Chicago to Dublin, returning Sat, Jan 23, priced at $484 just found
Icelandair
Tue, Nov 3 - Tue, Nov 10
ORD
Chicago
DUB
Dublin
$503 Roundtrip, found 3 days ago
$503
Roundtrip
found 3 days ago
Select Icelandair flight, departing Tue, Nov 3 from Chicago to Dublin, returning Tue, Nov 10, priced at $503 found 3 days ago
TAP Portugal
Wed, Oct 28 - Tue, Nov 3
ORD
Chicago
DUB
Dublin
$516 Roundtrip, found 1 day ago
$516
Roundtrip
found 1 day ago
Select TAP Portugal flight, departing Wed, Oct 28 from Chicago to Dublin, returning Tue, Nov 3, priced at $516 found 1 day ago
United
Tue, Aug 18 - Sat, Aug 29
ORD
Chicago
DUB
Dublin
$538 Roundtrip, found 4 days ago
$538
Roundtrip
found 4 days ago
Select United flight, departing Tue, Aug 18 from Chicago to Dublin, returning Sat, Aug 29, priced at $538 found 4 days ago
Aer Lingus
Fri, Sep 18 - Tue, Nov 10
ORD
Chicago
DUB
Dublin
$542 Roundtrip, found 2 days ago
$542
Roundtrip
found 2 days ago
Select Aer Lingus flight, departing Fri, Sep 18 from Chicago to Dublin, returning Tue, Nov 10, priced at $542 found 2 days ago
British Airways
Wed, Dec 2 - Wed, Dec 9
ORD
Chicago
DUB
Dublin
$542 Roundtrip, found 4 days ago
$542
Roundtrip
found 4 days ago
Select British Airways flight, departing Wed, Dec 2 from Chicago to Dublin, returning Wed, Dec 9, priced at $542 found 4 days ago
Delta
Sun, Nov 1 - Fri, Dec 11
ORD
Chicago
DUB
Dublin
$544 Roundtrip, found 4 days ago
$544
Roundtrip
found 4 days ago
Select Delta flight, departing Sun, Nov 1 from Chicago to Dublin, returning Fri, Dec 11, priced at $544 found 4 days ago
American Airlines
Sun, May 3 - Sun, May 10
ORD
Chicago
DUB
Dublin
$587 Roundtrip, just found
$587
Roundtrip
just found
Select American Airlines flight, departing Sun, May 3 from Chicago to Dublin, returning Sun, May 10, priced at $587 just found

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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 center is 14 minutes. Flights from $850
DUB
Dublin Airport
CheapestClosest
Average driving time to city center14 min
Flights from $850

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

November is typically the cheapest month to fly

From $358 - $875 per traveler.

Frequently asked questions

How much does a flight from Chicago, IL (ORD-O'Hare Intl.) to Dublin (DUB) cost?
You can find cheap one-way flights from $388 and cheap return flights from $457 Chicago, IL (ORD-O'Hare Intl.) to Dublin (DUB) with Expedia. One-way flights typically cost between $474 and $3896, and return flights often range between $668 and $8499. 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 Chicago, IL (ORD-O'Hare Intl.) to Dublin (DUB) ticket fares go up or down.*Typical price ranges based on flights available on Expedia in the last year. Prices include multi-airline options.
What is the cheapest month to fly from Chicago, IL (ORD-O'Hare Intl.) to Dublin (DUB)?
February is the cheapest month to fly from Chicago to Dublin, with average return fares around $625. This price is about 18% lower than the average throughout the year, as demand tends to decrease after the holiday season. Other budget-friendly months include January and November.*Averages based on flights available on Expedia in the last year.
Which airlines fly direct from Chicago, IL (ORD-O'Hare Intl.) to Dublin (DUB)?
3 airlines operate nonstop service from ORD to DUB:

  • Aer Lingus operates around 13 direct flights from ORD to DUB every week
  • United operates around 7 direct flights from ORD to DUB every week
  • American Airlines operates around 7 direct flights from ORD to DUB every week

What is the cheapest airline that flies from Chicago, IL (ORD-O'Hare Intl.) to Dublin (DUB)?
United is one of the cheapest airlines offering nonstop flights from Chicago, IL (ORD) to Dublin (DUB), with return tickets starting from around $1,237. Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget.*Prices based on flights available on Expedia in the last year.
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) to Dublin (DUB) will differ from traveler to traveler. If you like to fly early, Aer Lingus offers early morning flights. If price is the most important factor, United typically offers the lowest fares. American Airlines offers the most daily flights from ORD to 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)?
For flights from Chicago O'Hare International Airport (ORD) to Dublin (DUB), February and November are the best months to consider. Return flights during these months average around $625, making them a cost-effective choice. February typically has fewer crowds, while November offers a mild climate, enhancing your travel experience. This information is based on booking data from the past year.*Prices based on flights available on Expedia in the last year.
How many flights per day from Chicago, IL (ORD-O'Hare Intl.) to Dublin (DUB)?
There are approximately 3 nonstop flights per day from O'Hare Intl. (ORD) to (DUB). For more options, look at flights that include layovers.
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 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 (ORD-O'Hare Intl.) to Dublin (DUB) are in the evening, from 6pm to 9pm. About 31% of passengers prefer this time window. Many major carriers, including United, Aer Lingus and American Airlines, offer flights during this window. This timing is popular because it allows you to spend the day in Chicago before heading off to Dublin.
How long does it take to fly from Chicago, IL (ORD-O'Hare Intl.) to Dublin (DUB)?
Flying nonstop from ORD to DUB takes around 7 hours 30 minutes, with the route covering approximately 3,664 miles. Flights with a layover typically take 5 hours 50 minutes longer than direct options. 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)?
You can fly business class between ORD and DUB. Airlines that offer business class service on this route include:

  • Icelandair
  • SAS
  • Air Canada
  • Finnair
  • Swiss International Air Lines
  • KLM
  • Aer Lingus
  • United Airlines
  • TAP Portugal
  • Turkish Airlines

First class cabins are available on:

  • United Airlines
  • Lufthansa
  • Swiss International Air Lines

How much is a business class flight from Chicago, IL (ORD-O'Hare Intl.) to Dublin (DUB)?
A direct, return business class ticket from Chicago, IL (ORD) to Dublin (DUB) typically costs between $5,942 - $7,842. A non-stop, one-way business class flight is usually around $3,674 - $8,263. Prices often fluctuate based on seasonality and how early you book. You may also be able to find a cheaper business class journey between Chicago, IL (ORD-O'Hare Intl.) to Dublin (DUB) if you opt for a connecting flight.*Prices based on flights available on Expedia in the last year.
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) Dublin Vacation Packages 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
Roundtrip price
$456
Distance
3664 mi
Average flight time
12 hours 25 mins

Book with confidence

Chicago to Dublin Flights

The cheapest times to fly from Chicago to Dublin

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Chicago to Dublin are during the month of April. You can find some of the cheapest flights from Chicago to Dublin with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Chicago to Dublin

Sunday is one of the best days to book for cheap flights from Chicago to Dublin: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Chicago to Dublin

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Chicago to Dublin in 2026. You can also book with separate airlines for your outbound and return journeys, from $388 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Chicago to Dublin flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Chicago to Dublin airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Chicago to Dublin Flights

*Flight schedules are subject to change.

*Available to One Key members.