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Cheap flights from Chicago to Ireland from €176

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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Cheap return flights

Icelandair Logo
22:15 - 11:05ORD-DUB
30h 50m1 stop
Icelandair Logo
11:30 - 18:20DUB-ORD
11h 50m1 stop
€411Icelandair
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Fri, 17 Oct - Sat, 1 Nov
Icelandair Logo
18:30 - 10:15ORD-DUB
9h 45m1 stop
Icelandair Logo
11:30 - 17:20DUB-ORD
11h 50m1 stop
€412Icelandair
Find Deal
Fri, 7 Nov - Mon, 10 Nov
TAP AIR PORTUGAL Logo
20:15 - 10:20ORD-DUB
32h 05m1 stop
TAP AIR PORTUGAL Logo
04:25 - 15:15DUB-ORD
16h 50m1 stop
€413TAP AIR PORTUGAL
Find Deal
Fri, 7 Nov - Thu, 13 Nov
Scandinavian Airlines Logo
19:20 - 18:20ORD-DUB
17h 00m1 stop
Scandinavian Airlines Logo
11:30 - 16:45DUB-ORD
59h 15m2 stops
€417Scandinavian Airlines
Find Deal
Wed, 5 Nov - Mon, 10 Nov
Scandinavian Airlines Logo
19:15 - 18:15ORD-DUB
17h 00m1 stop
Scandinavian Airlines Logo
12:20 - 16:10DUB-ORD
33h 50m2 stops
€420Scandinavian Airlines
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Tue, 7 Oct - Fri, 17 Oct
Aer Lingus Logo
15:50 - 05:10ORD-DUB
7h 20mdirect
Aer Lingus Logo
11:30 - 14:00DUB-ORD
8h 30mdirect
€429Aer Lingus
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Tue, 2 Dec - Tue, 9 Dec
United Airlines Logo
07:00 - 10:20ORD-DUB
22h 20m1 stop
United Airlines Logo
09:00 - 09:13DUB-ORD
30h 13m1 stop
€433United Airlines
Find Deal
Tue, 28 Oct - Fri, 7 Nov
Aer Lingus Logo
16:50 - 05:10ORD-DUB
7h 20mdirect
Aer Lingus Logo
11:30 - 14:00DUB-ORD
8h 30mdirect
€436Aer Lingus
Find Deal
Tue, 28 Oct - Tue, 18 Nov
United Airlines Logo
14:39 - 10:20ORD-DUB
13h 41m1 stop
United Airlines Logo
09:00 - 15:10DUB-ORD
12h 10m1 stop
€444United Airlines
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Wed, 5 Nov - Wed, 12 Nov
TAP AIR PORTUGAL Logo
19:10 - 10:20ORD-DUB
33h 10m1 stop
TAP AIR PORTUGAL Logo
16:55 - 15:00DUB-ORD
28h 05m1 stop
€446TAP AIR PORTUGAL
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Wed, 5 Nov - Tue, 11 Nov

Icelandair flights from Chicago to Ireland

Our best Icelandair deals on Chicago to Ireland flight tickets
Icelandair
17 Oct
ORD22:15Chicago O'Hare Intl
30h 50m
1 stop
DUB11:05Dublin
1 Nov
DUB11:30Dublin
11h 50m
1 stop
ORD18:20Chicago O'Hare Intl
€411
Find similar
Icelandair
7 Nov
ORD18:30Chicago O'Hare Intl
9h 45m
1 stop
DUB10:15Dublin
10 Nov
DUB11:30Dublin
11h 50m
1 stop
ORD17:20Chicago O'Hare Intl
€412
Find similar
Icelandair
22 Oct
ORD19:25Chicago O'Hare Intl
11h 50m
1 stop
DUB13:15Dublin
1 Nov
DUB11:30Dublin
11h 50m
1 stop
ORD18:20Chicago O'Hare Intl
€421
Find similar

Scandinavian Airlines flights from Chicago to Ireland

Our best Scandinavian Airlines deals on Chicago to Ireland flight tickets
Scandinavian Airlines
5 Nov
ORD19:20Chicago O'Hare Intl
17h 00m
1 stop
DUB18:20Dublin
10 Nov
DUB11:30Dublin
59h 15m
2 stops
ORD16:45Chicago O'Hare Intl
€417
Find similar
Scandinavian Airlines
7 Oct
ORD19:15Chicago O'Hare Intl
17h 00m
1 stop
DUB18:15Dublin
17 Oct
DUB12:20Dublin
33h 50m
2 stops
ORD16:10Chicago O'Hare Intl
€420
Find similar
Scandinavian Airlines
11 Oct
ORD19:15Chicago O'Hare Intl
14h 55m
1 stop
DUB16:10Dublin
18 Oct
DUB20:05Dublin
26h 05m
2 stops
ORD16:10Chicago O'Hare Intl
€423
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 26 August 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 17/10

22:15-11:05

1 stop30h 50m

Dublin

Sat 1/11

11:30-18:20

1 stop11h 50m

€411

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Fri 7/11

18:30-10:15

1 stop9h 45m

Dublin

Mon 10/11

11:30-17:20

1 stop11h 50m

€412

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Fri 7/11

20:15-10:20

1 stop32h 05m

Dublin

Thu 13/11

04:25-15:15

1 stop16h 50m

€413

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Wed 5/11

19:20-18:20

1 stop17h 00m

Dublin

Mon 10/11

11:30-16:45

2 stops59h 15m

€417

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Tue 7/10

19:15-18:15

1 stop17h 00m

Dublin

Fri 17/10

12:20-16:10

2 stops33h 50m

€420

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Tue 2/12

15:50-05:10

Nonstop7h 20m

Dublin

Tue 9/12

11:30-14:00

Nonstop8h 30m

€429

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Tue 28/10

07:00-10:20

1 stop22h 20m

Dublin

Fri 7/11

09:00-09:13

1 stop30h 13m

€433

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Tue 28/10

16:50-05:10

Nonstop7h 20m

Dublin

Tue 18/11

11:30-14:00

Nonstop8h 30m

€436

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Wed 5/11

14:39-10:20

1 stop13h 41m

Dublin

Wed 12/11

09:00-15:10

1 stop12h 10m

€444

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Wed 5/11

19:10-10:20

1 stop33h 10m

Dublin

Tue 11/11

16:55-15:00

1 stop28h 05m

€446

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 €474.

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 €589. 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 €734. 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 €625. 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 €779.

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 €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 €549 on momondo.

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

There are 1 cabin classes 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?

You could potentially save up to 19% on your flight if you consider stops on a Chicago to Ireland flight.

Cheap Chicago to Ireland flight deals and tips

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

Fastest flight time

7h 20m

Direct flights

Every day

Airports in Ireland

1 airport
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 €454Free CancellationRating
7.2
1,237 reviews
Search Aer Lingus flights
United AirlinesPriceFrom €555Free CancellationRating
7.4
8,943 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

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