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Cheap flights from Chicago to Ireland from €174

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 to Ireland departing on 8/12. 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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0 bags

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Cheap return flights

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Scandinavian Airlines Logo
19:20 - 09:25ORD-DUB
32h 05m1 stop
Scandinavian Airlines Logo
12:30 - 16:45DUB-ORD
34h 15m1 stop
€392Scandinavian Airlines
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Fri, 16 Jan - Wed, 21 Jan
Multiple Airlines Logo
08:00 - 06:10ORD-DUB
17h 10m1 stop
Multiple Airlines Logo
09:10 - 21:05DUB-ORD
16h 55m1 stop
€393Multiple Airlines
Find Deal
Sun, 15 Mar - Wed, 25 Mar
Delta Logo
10:53 - 08:45MDW-DUB
15h 52m2 stops
Delta Logo
08:45 - 22:26DUB-MDW
19h 41m2 stops
€394Delta
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Tue, 20 Jan - Tue, 27 Jan
TAP AIR PORTUGAL Logo
20:15 - 23:20ORD-DUB
21h 05m1 stop
TAP AIR PORTUGAL Logo
04:15 - 14:45DUB-ORD
16h 30m1 stop
€394TAP AIR PORTUGAL
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Fri, 9 Jan - Sat, 17 Jan
Scandinavian Airlines Logo
20:20 - 18:20ORD-DUB
17h 00m1 stop
Scandinavian Airlines Logo
10:55 - 17:45DUB-ORD
35h 50m2 stops
€395Scandinavian Airlines
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Mon, 9 Mar - Sun, 15 Mar
Delta Logo
13:00 - 08:45MDW-DUB
14h 45m2 stops
Delta Logo
05:55 - 18:34DUB-MDW
17h 39m2 stops
€398Delta
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Mon, 9 Mar - Wed, 18 Mar
British Airways Logo
19:05 - 17:30ORD-DUB
16h 25m1 stop
British Airways Logo
10:55 - 18:15DUB-ORD
13h 20m1 stop
€398British Airways
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Wed, 8 Apr - Wed, 15 Apr
American Airlines Logo
17:40 - 16:10ORD-SNN
16h 30m1 stop
American Airlines Logo
21:15 - 15:55SNN-ORD
24h 40m1 stop
€405American Airlines
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Tue, 21 Apr - Tue, 5 May
American Airlines Logo
20:30 - 16:10ORD-SNN
13h 40m1 stop
American Airlines Logo
07:40 - 17:00SNN-ORD
15h 20m1 stop
€406American Airlines
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Mon, 27 Apr - Wed, 6 May
British Airways Logo
18:35 - 12:25ORD-NOC
11h 50m1 stop
British Airways Logo
13:00 - 17:00NOC-ORD
34h 00m1 stop
€568British Airways
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Tue, 9 Dec - Wed, 17 Dec

KLM flights from Chicago to Ireland

Our best KLM deals on Chicago to Ireland flight tickets
KLM
26 Nov
ORD16:25Chicago O'Hare Intl
25h 00m
1 stop
ORK23:25Cork
2 Dec
ORK17:15Cork
27h 05m
1 stop
ORD14:20Chicago O'Hare Intl
€409
Find similar
KLM
18 Nov
ORD11:03Chicago O'Hare Intl
14h 42m
1 stop
DUB07:45Dublin
23 Nov
DUB10:45Dublin
13h 08m
1 stop
ORD17:53Chicago O'Hare Intl
€410
Find similar
KLM
6 Dec
MDW09:59Chicago Midway
15h 46m
1 stop
DUB07:45Dublin
17 Dec
DUB09:45Dublin
12h 49m
1 stop
MDW16:34Chicago Midway
€417
Find similar

Delta flights from Chicago to Ireland

Our best Delta deals on Chicago to Ireland flight tickets
Delta
20 Jan
MDW10:53Chicago Midway
15h 52m
2 stops
DUB08:45Dublin
27 Jan
DUB08:45Dublin
19h 41m
2 stops
MDW22:26Chicago Midway
€394
Find similar
Delta
19 Nov
ORD16:25Chicago O'Hare Intl
17h 55m
1 stop
DUB16:20Dublin
3 Dec
DUB11:30Dublin
12h 32m
1 stop
ORD18:02Chicago O'Hare Intl
€397
Find similar
Delta
9 Mar
MDW13:00Chicago Midway
14h 45m
2 stops
DUB08:45Dublin
18 Mar
DUB05:55Dublin
17h 39m
2 stops
MDW18:34Chicago Midway
€398
Find similar

momondo Fare Finder

 
Customise your flight search to find flights from Chicago 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 13 November 2025.
Use the filters below to find and compare flights from Chicago to Ireland that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Fri 16/1

19:20-09:25

1 stop32h 05m

Dublin

Wed 21/1

12:30-16:45

1 stop34h 15m

€392

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Sun 15/3

08:00-06:10

1 stop17h 10m

Dublin

Wed 25/3

09:10-21:05

1 stop16h 55m

€393

ChicagoDublin

MDW - DUB

MDWDUB

Chicago Midway

Tue 20/1

10:53-08:45

2 stops15h 52m

Dublin

Tue 27/1

08:45-22:26

2 stops19h 41m

€394

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Fri 9/1

20:15-23:20

1 stop21h 05m

Dublin

Sat 17/1

04:15-14:45

1 stop16h 30m

€394

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Mon 9/3

20:20-18:20

1 stop17h 00m

Dublin

Sun 15/3

10:55-17:45

2 stops35h 50m

€395

ChicagoDublin

MDW - DUB

MDWDUB

Chicago Midway

Mon 9/3

13:00-08:45

2 stops14h 45m

Dublin

Wed 18/3

05:55-18:34

2 stops17h 39m

€398

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Wed 8/4

19:05-17:30

1 stop16h 25m

Dublin

Wed 15/4

10:55-18:15

1 stop13h 20m

€398

ChicagoShannon

ORD - SNN

ORDSNN

Chicago O'Hare Intl

Tue 21/4

17:40-16:10

1 stop16h 30m

Shannon

Tue 5/5

21:15-15:55

1 stop24h 40m

€405

ChicagoShannon

ORD - SNN

ORDSNN

Chicago O'Hare Intl

Mon 27/4

20:30-16:10

1 stop13h 40m

Shannon

Wed 6/5

07:40-17:00

1 stop15h 20m

€406

ChicagoKnock

ORD - NOC

ORDNOC

Chicago O'Hare Intl

Tue 9/12

18:35-12:25

1 stop11h 50m

Knock Intl

Wed 17/12

13:00-17:00

1 stop34h 00m

€568

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 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 January is another great option to travel to Ireland, with average flight prices from Chicago averaging around €487.

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 €551. 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 Saturday because tickets tend to average around €749. 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 to Ireland when you can find flight prices for as low as €631. 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 €786.

What is the cheapest Chicago to Ireland flight route?

Fly from Chicago O'Hare Intl to Dublin for the best Chicago - 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 when booking weeks ahead of your departure date. In general, you can expect to find flights to Ireland for around €607 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 for as low as €566 on momondo.

What cabin class options are available on Chicago to Ireland flights?

There is only 1 cabin class available to choose from on Chicago 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 to Ireland flights?

No. A direct flight is the cheapest option for a flight between Chicago to Ireland.

Cheap Chicago to Ireland flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Chicago to Ireland

Best price found

€494

Fastest flight time

7h 20m

Direct flights

Every day

Airports in Ireland

1 airport
The best flight deal from Chicago to Ireland found on momondo in the last 72 hours is €494
The fastest flight from Chicago to Ireland takes 7h 20m
Direct flights go from Chicago to Ireland every day.
There is 1 airport near Ireland: Dublin (DUB)
Search flight deals

  • When did momondo last update prices for flights from Chicago to Ireland?

    Prices for flights from Chicago to Ireland are refreshed on a daily basis.

  • How many operators does momondo search for flights from Chicago to Ireland?

  • How old do you have to be to fly from Chicago to Ireland?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Chicago to Ireland.

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

    The travel and health documents required for your trip to Ireland 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 Ireland. 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 to Ireland?

Best airlines flying from Chicago to Ireland

Compare and see reviews for airlines that fly from Chicago to Ireland with momondo
Airline
Rating
Free Cancellation
Price
Aer LingusPriceFrom €309Free CancellationRating
7.2
1,370 reviews
Search Aer Lingus flights
United AirlinesPriceFrom €494Free CancellationRating
7.4
9,015 reviews
Search United Airlines flights

Why use momondo?

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

It is quick and easy to find Chicago to Ireland flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Ireland that suits you.

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

Yes. momondo allows you to filter the results for Chicago to Ireland flights to just show those with flexible booking policies.

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

Once you have performed a search for Chicago to Ireland flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

Price alerts on flights to Ireland from Chicago are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

An easier way to manage your Ireland trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.
Start using Trips
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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 €38
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Flights to Donegalfrom €283
Flights to Milltown (Kerry)from €38