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Cheap flights from Chicago to Ireland 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 to Ireland departing on 24/10. 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 to Ireland

Cheap return flights

Logo
19:35 - 08:10ORD-DUB
7h 35mdirect
Logo
09:10 - 20:05DUB-ORD
16h 55m1 stop
€414
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Mon, 27 Oct - Wed, 5 Nov
Delta Logo
09:30 - 07:45MDW-DUB
17h 15m2 stops
Delta Logo
05:55 - 18:34DUB-MDW
17h 39m2 stops
€415Delta
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Tue, 10 Mar - Thu, 19 Mar
Scandinavian Airlines Logo
19:20 - 18:20ORD-DUB
17h 00m1 stop
Scandinavian Airlines Logo
19:05 - 16:45DUB-ORD
27h 40m1 stop
€415Scandinavian Airlines
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Thu, 13 Nov - Fri, 21 Nov
United Airlines Logo
14:39 - 10:20ORD-DUB
13h 41m1 stop
United Airlines Logo
10:40 - 13:30DUB-ORD
8h 50mdirect
€416United Airlines
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Wed, 3 Dec - Thu, 11 Dec
Scandinavian Airlines Logo
20:20 - 18:20ORD-DUB
17h 00m1 stop
Scandinavian Airlines Logo
19:05 - 21:19DUB-ORD
32h 14m2 stops
€417Scandinavian Airlines
Find Deal
Mon, 27 Oct - Mon, 3 Nov
United Airlines Logo
21:20 - 07:10ORD-DUB
27h 50m1 stop
United Airlines Logo
10:40 - 13:30DUB-ORD
8h 50mdirect
€417United Airlines
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Sat, 8 Nov - Tue, 18 Nov
Lufthansa Logo
21:40 - 16:55ORD-DUB
13h 15m1 stop
Lufthansa Logo
12:10 - 19:55DUB-ORD
13h 45m1 stop
€418Lufthansa
Find Deal
Wed, 8 Oct - Tue, 21 Oct
Aer Lingus Logo
15:45 - 05:10ORD-DUB
7h 25mdirect
Aer Lingus Logo
16:40 - 19:00DUB-ORD
8h 20mdirect
€430Aer Lingus
Find Deal
Wed, 8 Oct - Wed, 15 Oct
Lufthansa Logo
15:35 - 09:55ORD-DUB
12h 20m1 stop
Lufthansa Logo
17:40 - 12:55DUB-ORD
25h 15m1 stop
€440Lufthansa
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Wed, 15 Oct - Mon, 20 Oct
Aer Lingus Logo
19:40 - 09:00ORD-DUB
7h 20mdirect
Aer Lingus Logo
16:40 - 19:15DUB-ORD
8h 35mdirect
€445Aer Lingus
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Sat, 27 Dec - Wed, 7 Jan

Delta flights from Chicago to Ireland

Our best Delta deals on Chicago to Ireland flight tickets
Delta
10 Mar
MDW09:30Chicago Midway
17h 15m
2 stops
DUB07:45Dublin
19 Mar
DUB05:55Dublin
17h 39m
2 stops
MDW18:34Chicago Midway
€415
Find similar
Delta
28 Oct
MDW18:23Chicago Midway
16h 22m
2 stops
DUB15:45Dublin
4 Nov
DUB06:00Dublin
18h 25m
2 stops
MDW18:25Chicago Midway
€427
Find similar
Delta
12 Oct
MDW12:48Chicago Midway
13h 57m
1 stop
DUB08:45Dublin
21 Oct
DUB13:15Dublin
14h 59m
2 stops
MDW22:14Chicago Midway
€440
Find similar

Scandinavian Airlines flights from Chicago to Ireland

Our best Scandinavian Airlines deals on Chicago to Ireland flight tickets
Scandinavian Airlines
13 Nov
ORD19:20Chicago O'Hare Intl
17h 00m
1 stop
DUB18:20Dublin
21 Nov
DUB19:05Dublin
27h 40m
1 stop
ORD16:45Chicago O'Hare Intl
€415
Find similar
Scandinavian Airlines
27 Oct
ORD20:20Chicago O'Hare Intl
17h 00m
1 stop
DUB18:20Dublin
3 Nov
DUB19:05Dublin
32h 14m
2 stops
ORD21:19Chicago O'Hare Intl
€417
Find similar
Scandinavian Airlines
13 Mar
ORD20:10Chicago O'Hare Intl
34h 10m
2 stops
DUB11:20Dublin
19 Mar
DUB11:30Dublin
35h 15m
2 stops
ORD17:45Chicago O'Hare Intl
€420
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 14 September 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

Mon 27/10

19:35-08:10

Nonstop7h 35m

Dublin

Wed 5/11

09:10-20:05

1 stop16h 55m

€414

ChicagoDublin

MDW - DUB

MDWDUB

Chicago Midway

Tue 10/3

09:30-07:45

2 stops17h 15m

Dublin

Thu 19/3

05:55-18:34

2 stops17h 39m

€415

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Thu 13/11

19:20-18:20

1 stop17h 00m

Dublin

Fri 21/11

19:05-16:45

1 stop27h 40m

€415

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Wed 3/12

14:39-10:20

1 stop13h 41m

Dublin

Thu 11/12

10:40-13:30

Nonstop8h 50m

€416

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Mon 27/10

20:20-18:20

1 stop17h 00m

Dublin

Mon 3/11

19:05-21:19

2 stops32h 14m

€417

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Sat 8/11

21:20-07:10

1 stop27h 50m

Dublin

Tue 18/11

10:40-13:30

Nonstop8h 50m

€417

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Wed 8/10

21:40-16:55

1 stop13h 15m

Dublin

Tue 21/10

12:10-19:55

1 stop13h 45m

€418

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Wed 8/10

15:45-05:10

Nonstop7h 25m

Dublin

Wed 15/10

16:40-19:00

Nonstop8h 20m

€430

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Wed 15/10

15:35-09:55

1 stop12h 20m

Dublin

Mon 20/10

17:40-12:55

1 stop25h 15m

€440

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Sat 27/12

19:40-09:00

Nonstop7h 20m

Dublin

Wed 7/1

16:40-19:15

Nonstop8h 35m

€445

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 €477.

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 €552. 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 €708. 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 €622. 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 €775.

What is the cheapest Chicago to Ireland flight route?

Fly from Chicago O'Hare Intl to Shannon 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 €598 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 €555 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

€578

Fastest flight time

7h 20m

Direct flights

Every day

Airports in Ireland

1 airport
The best one-way flight to Ireland from Chicago in the past 72 hours is €578. The best return flight deal from Chicago to Ireland found on momondo in the last 72 hours is €548.
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 €452Free CancellationRating
7.2
1,271 reviews
Search Aer Lingus flights
United AirlinesPriceFrom €552Free CancellationRating
7.4
8,931 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 €40
Flights to Corkfrom €114
Flights to Shannon, Clarefrom €115
Flights to Donegalfrom €66
Flights to Milltown (Kerry)from €39