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Cheap flights from Chicago O'Hare Intl Airport to Ireland from €185

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 Ireland departing on 27/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Chicago O'Hare Intl Airport to Ireland

Cheap return flights

TAP AIR PORTUGAL Logo
20:15 - 23:20ORD-DUB
21h 05m1 stop
TAP AIR PORTUGAL Logo
04:25 - 15:15DUB-ORD
16h 50m1 stop
€350TAP AIR PORTUGAL
Find Deal
Fri, 7 Nov - Thu, 13 Nov
TAP AIR PORTUGAL Logo
18:00 - 00:05ORD-DUB
24h 05m1 stop
TAP AIR PORTUGAL Logo
16:55 - 16:00DUB-ORD
28h 05m1 stop
€351TAP AIR PORTUGAL
Find Deal
Thu, 23 Oct - Tue, 28 Oct
Scandinavian Airlines Logo
19:20 - 18:20ORD-DUB
17h 00m1 stop
Scandinavian Airlines Logo
10:10 - 16:45DUB-ORD
12h 35m1 stop
€355Scandinavian Airlines
Find Deal
Thu, 13 Nov - Sun, 16 Nov
Scandinavian Airlines Logo
19:20 - 09:25ORD-DUB
32h 05m1 stop
Scandinavian Airlines Logo
10:10 - 16:45DUB-ORD
12h 35m1 stop
€356Scandinavian Airlines
Find Deal
Fri, 7 Nov - Sat, 15 Nov
Logo
15:45 - 10:00ORD-KIR
12h 15m1 stop
Logo
11:25 - 19:00KIR-ORD
13h 35m1 stop
€503
Find Deal
Tue, 16 Sep - Tue, 23 Sep
United Airlines Logo
08:46 - 10:15ORD-SNN
19h 29m1 stop
United Airlines Logo
09:45 - 12:00SNN-ORD
8h 15mdirect
€518United Airlines
Find Deal
Mon, 1 Sep - Tue, 9 Sep
United Airlines Logo
18:00 - 07:30ORD-SNN
7h 30mdirect
United Airlines Logo
09:45 - 12:00SNN-ORD
8h 15mdirect
€519United Airlines
Find Deal
Mon, 1 Sep - Tue, 9 Sep
Logo
19:05 - 13:05ORD-ORK
12h 00m1 stop
Logo
17:10 - 12:55ORK-ORD
25h 45m1 stop
€540
Find Deal
Mon, 8 Sep - Wed, 24 Sep
Aer Lingus Logo
21:15 - 23:45ORD-ORK
20h 30m2 stops
Aer Lingus Logo
20:30 - 14:00ORK-ORD
23h 30m2 stops
€811Aer Lingus
Find Deal
Mon, 25 Aug - Sat, 30 Aug
Aer Lingus Logo
15:45 - 14:00ORD-CFN
16h 15m1 stop
Aer Lingus Logo
14:30 - 14:00CFN-ORD
29h 30m1 stop
€985Aer Lingus
Find Deal
Wed, 13 Aug - Sat, 16 Aug

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

Our best Scandinavian Airlines deals on Chicago O'Hare Intl Airport to Ireland flight tickets
Scandinavian Airlines
13 Nov
ORD19:20Chicago O'Hare Intl
17h 00m
1 stop
DUB18:20Dublin
16 Nov
DUB10:10Dublin
12h 35m
1 stop
ORD16:45Chicago O'Hare Intl
€355
Find similar
Scandinavian Airlines
7 Nov
ORD19:20Chicago O'Hare Intl
32h 05m
1 stop
DUB09:25Dublin
15 Nov
DUB10:10Dublin
12h 35m
1 stop
ORD16:45Chicago O'Hare Intl
€356
Find similar
Scandinavian Airlines
5 Dec
ORD19:20Chicago O'Hare Intl
32h 05m
1 stop
DUB09:25Dublin
12 Dec
DUB10:45Dublin
36h 00m
2 stops
ORD16:45Chicago O'Hare Intl
€360
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Air Canada flights from Chicago O'Hare Intl Airport to Ireland

Our best Air Canada deals on Chicago O'Hare Intl Airport to Ireland flight tickets
Air Canada
13 Aug
ORD10:56Chicago O'Hare Intl
14h 49m
2 stops
DUB07:45Dublin
21 Aug
DUB09:20Dublin
15h 34m
2 stops
ORD18:54Chicago O'Hare Intl
€532
Find similar
Air Canada
13 Aug
ORD14:07Chicago O'Hare Intl
11h 38m
1 stop
DUB07:45Dublin
19 Aug
DUB09:50Dublin
11h 14m
1 stop
ORD15:04Chicago O'Hare Intl
€538
Find similar
Air Canada
16 Aug
ORD18:20Chicago O'Hare Intl
31h 55m
1 stop
DUB08:15Dublin
26 Aug
DUB09:50Dublin
29h 19m
1 stop
ORD09:09Chicago O'Hare Intl
€543
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momondo Fare Finder

 
Customise your flight search to find flights from Chicago O'Hare Intl Airport to Ireland 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 2 August 2025.
Use the filters below to find and compare flights from Chicago O'Hare Intl Airport to Ireland that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Fri 7/11

20:15-23:20

1 stop21h 05m

Dublin

Thu 13/11

04:25-15:15

1 stop16h 50m

€350

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Thu 23/10

18:00-00:05

1 stop24h 05m

Dublin

Tue 28/10

16:55-16:00

1 stop28h 05m

€351

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Thu 13/11

19:20-18:20

1 stop17h 00m

Dublin

Sun 16/11

10:10-16:45

1 stop12h 35m

€355

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Fri 7/11

19:20-09:25

1 stop32h 05m

Dublin

Sat 15/11

10:10-16:45

1 stop12h 35m

€356

ChicagoMilltown (Kerry)

ORD - KIR

ORDKIR

Chicago O'Hare Intl

Tue 16/9

15:45-10:00

1 stop12h 15m

Milltown (Kerry) Kerry

Tue 23/9

11:25-19:00

1 stop13h 35m

€503

ChicagoShannon

ORD - SNN

ORDSNN

Chicago O'Hare Intl

Mon 1/9

08:46-10:15

1 stop19h 29m

Shannon

Tue 9/9

09:45-12:00

Nonstop8h 15m

€518

ChicagoShannon

ORD - SNN

ORDSNN

Chicago O'Hare Intl

Mon 1/9

18:00-07:30

Nonstop7h 30m

Shannon

Tue 9/9

09:45-12:00

Nonstop8h 15m

€519

ChicagoCork

ORD - ORK

ORDORK

Chicago O'Hare Intl

Mon 8/9

19:05-13:05

1 stop12h 00m

Cork

Wed 24/9

17:10-12:55

1 stop25h 45m

€540

ChicagoCork

ORD - ORK

ORDORK

Chicago O'Hare Intl

Mon 25/8

21:15-23:45

2 stops20h 30m

Cork

Sat 30/8

20:30-14:00

2 stops23h 30m

€810

ChicagoDonegal

ORD - CFN

ORDCFN

Chicago O'Hare Intl

Wed 13/8

15:45-14:00

1 stop16h 15m

Donegal

Sat 16/8

14:30-14:00

1 stop29h 30m

€985

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 Ireland from

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

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 Ireland?

The month of November is another great option to travel to Ireland, with average flight prices from Chicago O'Hare Intl Airport averaging around €472.

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

The cheapest day to depart on your flight to Ireland is on a Thursday when prices can be found for as low as €599. This is often the case because there is less demand to fly during this day of the week. If your travel schedule is flexible, try to avoid departing on a Tuesday because tickets tend to average around €746. These prices are subject to change though, so be sure to set up a Price Alert for flights to Ireland.

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

In the evening is the cheapest time of day to fly from Chicago O'Hare Intl Airport to Ireland when you can find flight prices for as low as €636. Flying to Ireland in the evening is an ideal time because this is during off-peak travel hours. In contrast, the most expensive time of day to depart to Ireland is at midday when prices are around €792.

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

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

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

You are more likely to see cheaper flights to Ireland from Chicago O'Hare Intl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Ireland for around €601 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Ireland from Chicago O'Hare Intl Airport for as low as €548 on momondo.

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

There are 1 cabin classes available to choose from on Chicago O'Hare Intl to Ireland 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 Ireland flights?

You could potentially save up to 34% on your flight if you consider stops on a Chicago O'Hare Intl Airport to Ireland flight.

Cheap Chicago O'Hare Intl Airport to Ireland flight deals and tips

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

Best price found

€185

Fastest flight time

7h 25m

Direct flights

Every day

Airports in Ireland

5 airports
The best one-way flight to Ireland from Chicago O'Hare Intl Airport in the past 72 hours is €185. The best return flight deal from Chicago O'Hare Intl Airport to Ireland found on momondo in the last 72 hours is €350.
The fastest flight from Chicago O'Hare Intl Airport to Ireland takes 7h 25m
Direct flights go from Chicago O'Hare Intl Airport to Ireland every day.
There are 5 airports near Ireland: Dublin (DUB), Shannon (SNN), Knock Intl (NOC), Milltown (Kerry) Kerry (KIR), Cork (ORK)
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  • When did momondo last update prices for flights from Chicago O'Hare Intl Airport to Ireland?

    Prices for flights from Chicago O'Hare Intl Airport to Ireland refresh daily.

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

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

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and stopovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Chicago O'Hare Intl Airport to Ireland.

  • What documentation or ID do you need to fly to Ireland?

    The necessary travel and health documents for your Ireland trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's licence and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

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

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

Compare and see reviews for airlines that fly from Chicago O'Hare Intl Airport to Ireland with momondo
Airline
Rating
Free Cancellation
Price
Aer LingusPriceFrom €462Free CancellationRating
7.1
1,193 reviews
Search Aer Lingus flights
United AirlinesPriceFrom €564Free CancellationRating
7.4
8,905 reviews
Search United Airlines flights

Why use momondo?

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

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 Ireland from Chicago.

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

Yes. All flights to Ireland from Chicago on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

Once all potential Chicago to Ireland flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

If you are not ready to book a flight from Chicago to Ireland now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Ireland and let you know when they change.

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Find better results for your trip to Ireland

Popular Cities in Ireland

Popular flights according to clicks in the last 7 days on momondo
Flights to Dublinfrom €40
Flights to Corkfrom €116
Flights to Shannon, Clarefrom €106
Flights to Donegalfrom €66
Flights to Milltown (Kerry)from €40