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Cheap flights from Chicago O'Hare Intl Airport to Dublin from €177

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 9/9. 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

Icelandair Logo
19:30 - 10:15ORD-DUB
9h 45m1 stop
Icelandair Logo
11:30 - 17:20DUB-ORD
11h 50m1 stop
€412Icelandair
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Mon, 27 Oct - Mon, 17 Nov
Scandinavian Airlines Logo
19:15 - 19:15ORD-DUB
42h 00m2 stops
Scandinavian Airlines Logo
20:05 - 16:10DUB-ORD
26h 05m2 stops
€413Scandinavian Airlines
Find Deal
Thu, 2 Oct - Sat, 11 Oct
TAP AIR PORTUGAL Logo
18:00 - 00:05ORD-DUB
24h 05m1 stop
TAP AIR PORTUGAL Logo
10:45 - 12:35DUB-ORD
31h 50m1 stop
€414TAP AIR PORTUGAL
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Wed, 8 Oct - Wed, 15 Oct
Aer Lingus Logo
15:45 - 05:10ORD-DUB
7h 25mdirect
Aer Lingus Logo
16:40 - 19:00DUB-ORD
8h 20mdirect
€415Aer Lingus
Find Deal
Tue, 16 Sep - Tue, 23 Sep
Aer Lingus Logo
21:15 - 10:40ORD-DUB
7h 25mdirect
Aer Lingus Logo
11:35 - 14:00DUB-ORD
8h 25mdirect
€416Aer Lingus
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Mon, 1 Sep - Tue, 9 Sep
TAP AIR PORTUGAL Logo
18:00 - 00:05ORD-DUB
24h 05m1 stop
TAP AIR PORTUGAL Logo
18:50 - 16:30DUB-ORD
27h 40m1 stop
€429TAP AIR PORTUGAL
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Thu, 25 Sep - Thu, 2 Oct
United Airlines Logo
19:35 - 08:10ORD-DUB
7h 35mdirect
United Airlines Logo
09:00 - 18:39DUB-ORD
15h 39m1 stop
€438United Airlines
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Wed, 29 Oct - Wed, 19 Nov
United Airlines Logo
19:35 - 08:10ORD-DUB
7h 35mdirect
United Airlines Logo
09:00 - 15:10DUB-ORD
12h 10m1 stop
€440United Airlines
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Mon, 27 Oct - Fri, 21 Nov
Logo
19:35 - 08:10ORD-DUB
7h 35mdirect
Logo
05:00 - 13:10DUB-ORD
14h 10m1 stop
€445
Find Deal
Tue, 28 Oct - Tue, 18 Nov
Logo
18:35 - 08:10ORD-DUB
7h 35mdirect
Logo
05:00 - 13:10DUB-ORD
14h 10m1 stop
€446
Find Deal
Tue, 3 Feb - Tue, 10 Feb

Scandinavian Airlines flights from Chicago O'Hare Intl Airport to Dublin

Our best Scandinavian Airlines deals on Chicago O'Hare Intl Airport to Dublin flight tickets
Scandinavian Airlines
2 Oct
ORD19:15Chicago O'Hare Intl
42h 00m
2 stops
DUB19:15Dublin
11 Oct
DUB20:05Dublin
26h 05m
2 stops
ORD16:10Chicago O'Hare Intl
€413
Find similar
Scandinavian Airlines
20 Nov
ORD19:20Chicago O'Hare Intl
17h 00m
1 stop
DUB18:20Dublin
30 Nov
DUB19:05Dublin
27h 40m
1 stop
ORD16:45Chicago O'Hare Intl
€418
Find similar
Scandinavian Airlines
18 Nov
ORD10:40Chicago O'Hare Intl
19h 05m
2 stops
DUB11:45Dublin
23 Nov
DUB10:10Dublin
12h 35m
1 stop
ORD16:45Chicago O'Hare Intl
€419
Find similar

TAP AIR PORTUGAL flights from Chicago O'Hare Intl Airport to Dublin

Our best TAP AIR PORTUGAL deals on Chicago O'Hare Intl Airport to Dublin flight tickets
TAP AIR PORTUGAL
8 Oct
ORD18:00Chicago O'Hare Intl
24h 05m
1 stop
DUB00:05Dublin
15 Oct
DUB10:45Dublin
31h 50m
1 stop
ORD12:35Chicago O'Hare Intl
€414
Find similar
TAP AIR PORTUGAL
25 Sept
ORD18:00Chicago O'Hare Intl
24h 05m
1 stop
DUB00:05Dublin
2 Oct
DUB18:50Dublin
27h 40m
1 stop
ORD16:30Chicago O'Hare Intl
€429
Find similar
TAP AIR PORTUGAL
22 Oct
ORD18:00Chicago O'Hare Intl
24h 05m
1 stop
DUB00:05Dublin
1 Nov
DUB16:55Dublin
28h 05m
1 stop
ORD16:00Chicago O'Hare Intl
€437
Find similar

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 19 August 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

Mon 27/10

19:30-10:15

1 stop9h 45m

Dublin

Mon 17/11

11:30-17:20

1 stop11h 50m

€412

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Thu 2/10

19:15-19:15

2 stops42h 00m

Dublin

Sat 11/10

20:05-16:10

2 stops26h 05m

€413

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Wed 8/10

18:00-00:05

1 stop24h 05m

Dublin

Wed 15/10

10:45-12:35

1 stop31h 50m

€414

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Tue 16/9

15:45-05:10

Nonstop7h 25m

Dublin

Tue 23/9

16:40-19:00

Nonstop8h 20m

€415

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Mon 1/9

21:15-10:40

Nonstop7h 25m

Dublin

Tue 9/9

11:35-14:00

Nonstop8h 25m

€416

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Thu 25/9

18:00-00:05

1 stop24h 05m

Dublin

Thu 2/10

18:50-16:30

1 stop27h 40m

€429

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Wed 29/10

19:35-08:10

Nonstop7h 35m

Dublin

Wed 19/11

09:00-18:39

1 stop15h 39m

€438

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Mon 27/10

19:35-08:10

Nonstop7h 35m

Dublin

Fri 21/11

09:00-15:10

1 stop12h 10m

€440

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Tue 28/10

19:35-08:10

Nonstop7h 35m

Dublin

Tue 18/11

05:00-13:10

1 stop14h 10m

€445

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Tue 3/2

18:35-08:10

Nonstop7h 35m

Dublin

Tue 10/2

05:00-13:10

1 stop14h 10m

€446

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
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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 November instead. Flights to Dublin in November, while not as cheap as those in January, still average around €470.

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 €589. If your travel schedule is flexible, try to avoid departing on a Tuesday because tickets tend to average around €734. 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 €625. If you have a flexible travel schedule, then try to avoid flying at midday when prices are €779 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 €596 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 €553 on momondo.

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

There are 1 cabin classes 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?

You could potentially save up to 19% on your flight if you consider stops on a Chicago O'Hare Intl Airport to Dublin flight.

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

As of August 2025, prices for Chicago O'Hare Intl Airport to Dublin flights are approximately 11% 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

€177

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 €177. The best return flight deal from Chicago O'Hare Intl Airport to Dublin found on momondo in the last 72 hours is €412.
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 €454Free CancellationRating
7.2
1,221 reviews
Search Aer Lingus flights
United AirlinesPriceFrom €555Free CancellationRating
7.4
8,922 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 1,221 Aer Lingus reviews on momondo, the average score is 7.2/10. Aer Lingus flies from Chicago O'Hare Intl Airport to Dublin about 20 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
Swords
Cavan
Dundalk
Enniscorthy
Tullamore
Kildare
Naas
Mullingar
Arklow
Maynooth
Bray
Drogheda
Gorey
Malahide
Carlingford
Portmarnock
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.

An easier way to manage your Dublin trip

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