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Cheap flights from Chicago O'Hare Intl Airport to Dublin from €180

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Chicago O'Hare Intl Airport to Dublin departing on 5/11. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Chicago O'Hare Intl Airport to Dublin

Cheap return flights

Delta Logo
14:35 - 09:20ORD-DUB
12h 45m2 stops
Delta Logo
10:45 - 21:27DUB-ORD
16h 42m1 stop
€413Delta
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Tue, 4 Nov - Wed, 12 Nov
SWISS Logo
18:50 - 17:45ORD-DUB
16h 55m1 stop
SWISS Logo
13:20 - 16:20DUB-ORD
33h 00m1 stop
€414SWISS
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Wed, 5 Nov - Mon, 10 Nov
United Airlines Logo
20:20 - 09:45ORD-DUB
7h 25mdirect
United Airlines Logo
09:20 - 20:04DUB-ORD
16h 44m1 stop
€415United Airlines
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Sun, 12 Oct - Fri, 24 Oct
Aer Lingus Logo
16:50 - 05:10ORD-DUB
7h 20mdirect
Aer Lingus Logo
11:30 - 14:00DUB-ORD
8h 30mdirect
€416Aer Lingus
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Wed, 29 Oct - Tue, 4 Nov
United Airlines Logo
15:55 - 07:10ORD-DUB
9h 15m1 stop
United Airlines Logo
10:40 - 13:30DUB-ORD
8h 50mdirect
€417United Airlines
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Tue, 4 Nov - Tue, 11 Nov
Scandinavian Airlines Logo
19:20 - 09:25ORD-DUB
32h 05m1 stop
Scandinavian Airlines Logo
12:30 - 16:45DUB-ORD
34h 15m1 stop
€418Scandinavian Airlines
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Fri, 7 Nov - Fri, 14 Nov
Scandinavian Airlines Logo
19:20 - 18:20ORD-DUB
17h 00m1 stop
Scandinavian Airlines Logo
19:05 - 16:45DUB-ORD
27h 40m1 stop
€421Scandinavian Airlines
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Thu, 6 Nov - Thu, 13 Nov
Logo
15:45 - 07:45ORD-DUB
34h 00m1 stop
Logo
13:00 - 15:55DUB-ORD
32h 55m1 stop
€422
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Mon, 6 Oct - Mon, 13 Oct
Logo
20:20 - 09:45ORD-DUB
7h 25mdirect
Logo
13:00 - 15:55DUB-ORD
32h 55m1 stop
€430
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Wed, 8 Oct - Mon, 13 Oct
Aer Lingus Logo
15:45 - 05:10ORD-DUB
7h 25mdirect
Aer Lingus Logo
16:40 - 19:00DUB-ORD
8h 20mdirect
€431Aer Lingus
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Sun, 12 Oct - Wed, 15 Oct

Aer Lingus flights from Chicago O'Hare Intl Airport to Dublin

Our best Aer Lingus deals on Chicago O'Hare Intl Airport to Dublin flight tickets
Aer Lingus
29 Oct
ORD16:50Chicago O'Hare Intl
7h 20m
DUB05:10Dublin
4 Nov
DUB11:30Dublin
8h 30m
ORD14:00Chicago O'Hare Intl
€416
Find similar
Aer Lingus
12 Oct
ORD15:45Chicago O'Hare Intl
7h 25m
DUB05:10Dublin
15 Oct
DUB16:40Dublin
8h 20m
ORD19:00Chicago O'Hare Intl
€431
Find similar
Aer Lingus
19 Oct
ORD21:15Chicago O'Hare Intl
7h 25m
DUB10:40Dublin
1 Nov
DUB15:20Dublin
8h 35m
ORD18:55Chicago O'Hare Intl
€435
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Air Canada flights from Chicago O'Hare Intl Airport to Dublin

Our best Air Canada deals on Chicago O'Hare Intl Airport to Dublin flight tickets
Air Canada
14 Oct
ORD15:50Chicago O'Hare Intl
10h 25m
1 stop
DUB08:15Dublin
22 Oct
DUB09:50Dublin
16h 27m
2 stops
ORD20:17Chicago O'Hare Intl
€424
Find similar
Air Canada
12 Oct
ORD15:50Chicago O'Hare Intl
10h 25m
1 stop
DUB08:15Dublin
21 Oct
DUB09:50Dublin
15h 04m
2 stops
ORD18:54Chicago O'Hare Intl
€426
Find similar
Air Canada
12 Oct
ORD12:52Chicago O'Hare Intl
13h 23m
1 stop
DUB08:15Dublin
23 Oct
DUB09:50Dublin
11h 14m
1 stop
ORD15:04Chicago O'Hare Intl
€427
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momondo Fare Finder

 
Customise your flight search to find flights from Chicago O'Hare Intl Airport to Dublin that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 13,528 searches. Data last updated 9 September 2025.
Use the filters below to find and compare flights from Chicago O'Hare Intl Airport to Dublin that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Tue 4/11

14:35-09:20

2 stops12h 45m

Dublin

Wed 12/11

10:45-21:27

1 stop16h 42m

€413

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Wed 5/11

18:50-17:45

1 stop16h 55m

Dublin

Mon 10/11

13:20-16:20

1 stop33h 00m

€414

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Sun 12/10

20:20-09:45

Nonstop7h 25m

Dublin

Fri 24/10

09:20-20:04

1 stop16h 44m

€415

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Wed 29/10

16:50-05:10

Nonstop7h 20m

Dublin

Tue 4/11

11:30-14:00

Nonstop8h 30m

€416

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Tue 4/11

15:55-07:10

1 stop9h 15m

Dublin

Tue 11/11

10:40-13:30

Nonstop8h 50m

€417

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Fri 7/11

19:20-09:25

1 stop32h 05m

Dublin

Fri 14/11

12:30-16:45

1 stop34h 15m

€418

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Thu 6/11

19:20-18:20

1 stop17h 00m

Dublin

Thu 13/11

19:05-16:45

1 stop27h 40m

€421

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Mon 6/10

15:45-07:45

1 stop34h 00m

Dublin

Mon 13/10

13:00-15:55

1 stop32h 55m

€422

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Wed 8/10

20:20-09:45

Nonstop7h 25m

Dublin

Mon 13/10

13:00-15:55

1 stop32h 55m

€430

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Sun 12/10

15:45-05:10

Nonstop7h 25m

Dublin

Wed 15/10

16:40-19:00

Nonstop8h 20m

€431

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Dublin from

How to get the cheapest flight ticket from Chicago O'Hare Intl Airport to Dublin

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Dublin?

If you aren’t able to travel during the month of January, then book flights to Dublin from Chicago O'Hare Intl Airport during February instead. Flights to Dublin in February, while not as cheap as those in January, still average around €468.

What is the cheapest day to depart on your flight to Dublin?

Our data shows that Thursday is the least expensive day to fly to Dublin. Tickets to fly out on this day can be as low as €552. If your travel schedule is flexible, try to avoid departing on a Tuesday because tickets tend to average around €708. These prices are subject to change though, so be sure to set up a Price Alert for flights to Dublin.

What is the cheapest time of day to depart on your flight to Dublin?

Our data shows that the cheapest Chicago O'Hare Intl Airport to Dublin flights are usually those with departure times in the evening. Our users have found flights to Dublin in the evening for as low as €622. If you have a flexible travel schedule, then try to avoid flying at midday when prices are €775 on average. Flights to Dublin from Chicago O'Hare Intl Airport at midday are generally more expensive because this time of day is more convenient for travellers’ schedules.

What is the cheapest Chicago O'Hare Intl to Dublin flight route?

Fly from Chicago O'Hare Intl to Dublin for the best Chicago O'Hare Intl - Dublin flight prices

How far in advance should I book a flight to Dublin?

You are more likely to see cheaper flights to Dublin from Chicago O'Hare Intl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Dublin for around €595 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Dublin from Chicago O'Hare Intl Airport for as low as €546 on momondo.

What cabin class options are available on Chicago O'Hare Intl to Dublin flights?

There is only 1 cabin class available to choose from on Chicago O'Hare Intl to Dublin flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Chicago O'Hare Intl Airport to Dublin flights?

No. A direct flight is the cheapest option for a flight between Chicago O'Hare Intl Airport to Dublin.

How have Chicago O'Hare Intl Airport to Dublin flight prices changed over time?

As of September 2025, prices for Chicago O'Hare Intl Airport to Dublin flights are approximately 22% more expensive when compared to flights at the same time last year.

When to book flights from Chicago O'Hare Intl Airport to Dublin

Are you open to changing your travel dates? Check out the ideal times to fly from Chicago O'Hare Intl Airport to Dublin according to our flight data. Find out which month and days have the cheapest flights.
Estimated return price

Cheap Chicago O'Hare Intl Airport to Dublin (ORD to DUB) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Chicago O'Hare Intl Airport to Dublin

Best price found

€578

Fastest flight time

7h 20m

Direct flights

Every day

Airports in Dublin

1 airport
The best one-way flight to Dublin from Chicago O'Hare Intl Airport in the past 72 hours is €578. The best return flight deal from Chicago O'Hare Intl Airport to Dublin found on momondo in the last 72 hours is €548.
The fastest flight from Chicago O'Hare Intl Airport to Dublin takes 7h 20m
Direct flights go from Chicago O'Hare Intl Airport to Dublin every day.
There is 1 airport near Dublin: Dublin (DUB)
Search flight deals

  • How far is Chicago O'Hare Intl to Dublin by plane?

    There are 5895.0 km between Chicago O'Hare Intl and Dublin. A reasonable flight in good conditions will take 7h 20m.

  • When did momondo last update prices for flights from Chicago O'Hare Intl Airport to Dublin Airport?

    Prices for flights from Chicago O'Hare Intl Airport to Dublin Airport are updated daily.

  • How many operators does momondo search for flights from Chicago O'Hare Intl Airport to Dublin Airport?

  • How old do you have to be to fly from Chicago O'Hare Intl Airport to Dublin Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and stopovers. It is recommended that you verify with the airline you are booking with for travel from Chicago O'Hare Intl Airport to Dublin Airport.

  • What documentation or ID do you need to fly to Dublin Airport?

    The travel and health documents required for your trip to Dublin Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s licence, and a passport valid for six-months after you plan to arrive at Dublin Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular plane model from Chicago O'Hare Intl Airport to Dublin?

  • What is the most popular airline from Chicago O'Hare Intl Airport to Dublin?

Best airlines flying from Chicago O'Hare Intl Airport to Dublin

Compare and see reviews for airlines that fly from Chicago O'Hare Intl Airport to Dublin with momondo
Airline
Rating
Free Cancellation
Price
Aer LingusPriceFrom €452Free CancellationRating
7.2
1,266 reviews
Search Aer Lingus flights
United AirlinesPriceFrom €552Free CancellationRating
7.4
8,943 reviews
Search United Airlines flights

  • United Airlines Flights From Chicago O'Hare Intl Airport to Dublin

    United Airlines is one of the most popular airlines flying from Chicago O'Hare Intl Airport to Dublin, operating 7 flights/week on average for this route. A good United Airlines flight deal for Chicago O'Hare Intl Airport to Dublin starts from €648 round-trip, up to an average price of €731. Our users have rated United Airlines at 7.4/10.

  • Aer Lingus Flights From Chicago O'Hare Intl Airport to Dublin

    Across 1,266 Aer Lingus reviews on momondo, the average score is 7.2/10. Aer Lingus flies from Chicago O'Hare Intl Airport to Dublin about 21 times each week, with ticket deals ranging from €530 to €756. Price data is based on momondo searches in the last 72 hours.

Travelling to a place near Dublin?

Book flights to Dublin if you plan to visit one of these locations
Kilkenny
Athlone
Wicklow
Cavan
Swords
Dundalk
Tullamore
Enniscorthy
Kildare
Naas
Mullingar
Bray
Maynooth
Arklow
Drogheda
Malahide
Carlingford
Portmarnock
Castleknock
Leixlip

Why use momondo?

Why should I use momondo to find a flight deal from Chicago to Dublin?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Dublin from Chicago.

Can I find flights from Chicago to Dublin with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Dublin from Chicago with this policy.

How can momondo help me find flights from Chicago to Dublin?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Chicago to Dublin.

I’m not ready to book a flight from Chicago to Dublin right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Dublin, momondo offers a useful price alert feature which will track prices for flights to Dublin from Chicago and alert you when they change.

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