$439 Cheap Aer Lingus flights Chicago (ORD) to Dublin (DUB)

View $439 flight on Wed, Oct 8, 2025Opens in a new window

$439 Cheap Aer Lingus flights Chicago (ORD) to Dublin (DUB)

Prices were available within the past 7 days and start at $439 for one-way flights and $438 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Aer Lingus
Wed, Oct 29 - Wed, Nov 5
ORD
Chicago
DUB
Dublin
$438 Roundtrip, just found
$438
Roundtrip
just found
Select Aer Lingus flight, departing Wed, Oct 29 from Chicago to Dublin, returning Wed, Nov 5, priced at $438 just found
Aer Lingus
Tue, Apr 14 - Tue, Apr 21
ORD
Chicago
DUB
Dublin
$442 Roundtrip, just found
$442
Roundtrip
just found
Select Aer Lingus flight, departing Tue, Apr 14 from Chicago to Dublin, returning Tue, Apr 21, priced at $442 just found
Aer Lingus
Wed, Oct 8 - Tue, Oct 14
ORD
Chicago
DUB
Dublin
$462 Roundtrip, just found
$462
Roundtrip
just found
Select Aer Lingus flight, departing Wed, Oct 8 from Chicago to Dublin, returning Tue, Oct 14, priced at $462 just found
Aer Lingus
Wed, Sep 17 - Wed, Sep 24
ORD
Chicago
DUB
Dublin
$482 Roundtrip, found 1 hour ago
$482
Roundtrip
found 1 hour ago
Select Aer Lingus flight, departing Wed, Sep 17 from Chicago to Dublin, returning Wed, Sep 24, priced at $482 found 1 hour ago
Aer Lingus
Mon, Dec 1 - Mon, Dec 8
ORD
Chicago
DUB
Dublin
$488 Roundtrip, just found
$488
Roundtrip
just found
Select Aer Lingus flight, departing Mon, Dec 1 from Chicago to Dublin, returning Mon, Dec 8, priced at $488 just found
Aer Lingus
Thu, Apr 23 - Thu, Apr 30
ORD
Chicago
DUB
Dublin
$492 Roundtrip, just found
$492
Roundtrip
just found
Select Aer Lingus flight, departing Thu, Apr 23 from Chicago to Dublin, returning Thu, Apr 30, priced at $492 just found
Flights from Chicago (ORD) to Dublin (DUB)
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
Popular airline
Aer Lingus
Distance
3664 mi
Average flight time
13 hours 22 mins

Frequently asked questions

How much is an Aer Lingus flight from O'Hare Intl. Airport (ORD) to Dublin Airport (DUB)?
Landing cheap one-way Aer Lingus flights from ORD to DUB from $439 on Expedia couldn't be easier — just filter by "Price (lowest to highest)." Alternatively, check out our budget-friendly round-trip fares from $438 for your next exciting adventure.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
What is the cheapest month to fly from ORD to DUB with Aer Lingus?
Aer Lingus flights to Dublin are generally cheaper in the off-peak months of January and February. Whether you're after a round-trip or one-way ticket, you could score a better deal then.
What is the cheapest time to book flights from O'Hare Intl. Airport (ORD) to Dublin Airport (DUB) with Aer Lingus?
Search for Aer Lingus flights from ORD to DUB about one month before you want to go. The cheapest time to book an international flight is generally 18 to 29 days ahead of your travel date when you can save 17% versus booking four to five months in advance. Regardless of itinerary or fare class, the best day of the week to book international airfare is usually Sunday. Friday is often the most expensive. Passengers booking on a Sunday can save 17% on average compared to those who book on a Friday.**Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC's global airline sales database.
Does Aer Lingus fly nonstop from O'Hare Intl. Airport (ORD) to Dublin Airport (DUB)?
Aer Lingus offers direct flights from O'Hare Intl. Airport (ORD) to Dublin Airport (DUB), with 6 departures every week. Just apply the "Nonstop" and "Airline" filters while searching on Expedia to see all direct Aer Lingus flights to DUB.
How long does it take to fly from ORD to DUB with Aer Lingus?
From takeoff till landing, a nonstop Aer Lingus flight from O'Hare Intl. Airport (ORD) to Dublin Airport (DUB) takes around 7h 19m.
What is the earliest Aer Lingus flight from ORD to DUB?
The earliest flight from ORD to DUB with Aer Lingus departs at 9:00PM UTC-6. You'll touch down at 10:20AM UTC+0. The last Aer Lingus flight of the day leaves at 9:00PM UTC-6 and arrives at 10:20AM UTC+0. With approximately 20% fewer cancellations for departures before noon, beginning your travel day early is generally the best choice.**Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports does Aer Lingus fly into in Dublin?
Jump on an Aer Lingus flight from O'Hare Intl. Airport (ORD) to Dublin, and you'll probably touch down at Dublin Airport (DUB). This is the airline's primary hub in this destination.
What kind of luggage can I take on an Aer Lingus flight from O'Hare Intl. Airport (ORD) to Dublin Airport (DUB)?
Aer Lingus allows passengers to bring 1 checked-in bag weighing up to 50 lb with dimensions not exceeding 62 inches on standard economy flights from ORD to DUB. You can also bring 1 cabin bag in the cabin. This carry-on luggage must not exceed 21 inches x 15 inches x 9 inches and weigh less than 22 lb. Baggage allowances can differ based on the cabin class and fare type, so check your booking or Aer Lingus's website to avoid paying additional fees at the airport.
Why fly with Aer Lingus from ORD to DUB?
Offering a rewarding loyalty program and a 4-star airline rating, Aer Lingus is a favorite for many travelers flying from ORD to DUB. What's more, if you're an Aer Lingus AerClub and One Key™ member booking with Expedia, you could earn OneKeyCash™* on eligible flights on top of your airline miles, which can be spent on future travel purchases.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.
What type of plane does Aer Lingus fly from O'Hare Intl. Airport (ORD) to Dublin Airport (DUB)?
Chances are you'll board an Airbus A330-300 for your Aer Lingus flight from O'Hare Intl. Airport (ORD) to Dublin Airport (DUB). However, you could end up on an alternative aircraft if there's an operational need.
Can I change or cancel my Aer Lingus flight from O'Hare Intl. Airport (ORD) to Dublin Airport (DUB)?
Depending on the type of fare you purchased, a fee is typically charged if you modify or cancel your booking more than 24 hours after it has been confirmed. To secure plane tickets with more flexibility, select our "Changes included" or "No cancel fee" filter when you search for flights. For more details on changing or canceling your reservation, go to "Trips," select your flight and click on "Manage Booking."

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*Available to One Key members.