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Cheap flights from Chicago to Ireland from €175

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 12/11. 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

Enter your travel dates to find the best prices.
American Airlines Logo
17:10 - 11:30ORD-SNN
12h 20m1 stop
American Airlines Logo
07:50 - 15:25SNN-ORD
13h 35m1 stop
€404American Airlines
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Sun, 9 Nov - Tue, 18 Nov
American Airlines Logo
18:30 - 11:30ORD-SNN
11h 00m1 stop
American Airlines Logo
07:50 - 15:25SNN-ORD
13h 35m1 stop
€405American Airlines
Find Deal
Sun, 9 Nov - Tue, 18 Nov
Lufthansa Logo
21:05 - 11:00ORD-DUB
31h 55m2 stops
Lufthansa Logo
05:00 - 20:05DUB-ORD
21h 05m1 stop
€423Lufthansa
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Sat, 6 Dec - Thu, 18 Dec
Scandinavian Airlines Logo
19:20 - 11:20ORD-DUB
34h 00m2 stops
Scandinavian Airlines Logo
18:55 - 16:45DUB-ORD
27h 50m2 stops
€424Scandinavian Airlines
Find Deal
Fri, 7 Nov - Fri, 14 Nov
Scandinavian Airlines Logo
19:20 - 18:20ORD-DUB
17h 00m1 stop
Scandinavian Airlines Logo
12:30 - 16:45DUB-ORD
34h 15m1 stop
€425Scandinavian Airlines
Find Deal
Sun, 16 Nov - Wed, 19 Nov
Lufthansa Logo
21:50 - 17:10ORD-DUB
13h 20m1 stop
Lufthansa Logo
17:55 - 13:10DUB-ORD
25h 15m2 stops
€428Lufthansa
Find Deal
Tue, 25 Nov - Tue, 2 Dec
Delta Logo
06:00 - 07:45MDW-DUB
19h 45m1 stop
Delta Logo
06:00 - 18:08DUB-MDW
18h 08m2 stops
€432Delta
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Fri, 7 Nov - Tue, 11 Nov
Delta Logo
13:29 - 07:45ORD-DUB
12h 16m1 stop
Delta Logo
06:00 - 16:24DUB-ORD
16h 24m2 stops
€432Delta
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Wed, 19 Nov - Mon, 24 Nov
Aer Lingus Logo
16:50 - 05:10ORD-DUB
7h 20mdirect
Aer Lingus Logo
11:30 - 14:00DUB-ORD
8h 30mdirect
€445Aer Lingus
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Thu, 30 Oct - Mon, 10 Nov
Aer Lingus Logo
09:15 - 05:15ORD-DUB
15h 00m1 stop
Aer Lingus Logo
15:20 - 17:55DUB-ORD
8h 35mdirect
€453Aer Lingus
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Tue, 28 Oct - Tue, 11 Nov

Lufthansa flights from Chicago to Ireland

Our best Lufthansa deals on Chicago to Ireland flight tickets
Lufthansa
6 Dec
ORD21:05Chicago O'Hare Intl
31h 55m
2 stops
DUB11:00Dublin
18 Dec
DUB05:00Dublin
21h 05m
1 stop
ORD20:05Chicago O'Hare Intl
€423
Find similar
Lufthansa
25 Nov
ORD21:50Chicago O'Hare Intl
13h 20m
1 stop
DUB17:10Dublin
2 Dec
DUB17:55Dublin
25h 15m
2 stops
ORD13:10Chicago O'Hare Intl
€428
Find similar
Lufthansa
10 Dec
ORD21:50Chicago O'Hare Intl
18h 55m
2 stops
DUB22:45Dublin
16 Dec
DUB05:00Dublin
14h 10m
1 stop
ORD13:10Chicago O'Hare Intl
€430
Find similar

Scandinavian Airlines flights from Chicago to Ireland

Our best Scandinavian Airlines deals on Chicago to Ireland flight tickets
Scandinavian Airlines
7 Nov
ORD19:20Chicago O'Hare Intl
34h 00m
2 stops
DUB11:20Dublin
14 Nov
DUB18:55Dublin
27h 50m
2 stops
ORD16:45Chicago O'Hare Intl
€424
Find similar
Scandinavian Airlines
16 Nov
ORD19:20Chicago O'Hare Intl
17h 00m
1 stop
DUB18:20Dublin
19 Nov
DUB12:30Dublin
34h 15m
1 stop
ORD16:45Chicago O'Hare Intl
€425
Find similar
Scandinavian Airlines
20 Mar
ORD20:20Chicago O'Hare Intl
32h 05m
1 stop
DUB09:25Dublin
29 Mar
DUB19:15Dublin
26h 55m
2 stops
ORD16:10Chicago O'Hare Intl
€427
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 October 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

ChicagoShannon

ORD - SNN

ORDSNN

Chicago O'Hare Intl

Sun 9/11

17:10-11:30

1 stop12h 20m

Shannon

Tue 18/11

07:50-15:25

1 stop13h 35m

€404

ChicagoShannon

ORD - SNN

ORDSNN

Chicago O'Hare Intl

Sun 9/11

18:30-11:30

1 stop11h 00m

Shannon

Tue 18/11

07:50-15:25

1 stop13h 35m

€405

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Sat 6/12

21:05-11:00

2 stops31h 55m

Dublin

Thu 18/12

05:00-20:05

1 stop21h 05m

€423

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Fri 7/11

19:20-11:20

2 stops34h 00m

Dublin

Fri 14/11

18:55-16:45

2 stops27h 50m

€424

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Sun 16/11

19:20-18:20

1 stop17h 00m

Dublin

Wed 19/11

12:30-16:45

1 stop34h 15m

€425

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Tue 25/11

21:50-17:10

1 stop13h 20m

Dublin

Tue 2/12

17:55-13:10

2 stops25h 15m

€428

ChicagoDublin

MDW - DUB

MDWDUB

Chicago Midway

Fri 7/11

06:00-07:45

1 stop19h 45m

Dublin

Tue 11/11

06:00-18:08

2 stops18h 08m

€432

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Wed 19/11

13:29-07:45

1 stop12h 16m

Dublin

Mon 24/11

06:00-16:24

2 stops16h 24m

€432

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Thu 30/10

16:50-05:10

Nonstop7h 20m

Dublin

Mon 10/11

11:30-14:00

Nonstop8h 30m

€445

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Tue 28/10

09:15-05:15

1 stop15h 00m

Dublin

Tue 11/11

15:20-17:55

Nonstop8h 35m

€453

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 €490.

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 €549. 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 €897. 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 €628. 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 €783.

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 €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.

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

€637

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 €637
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 €308Free CancellationRating
7.2
1,333 reviews
Search Aer Lingus flights
United AirlinesPriceFrom €558Free CancellationRating
7.4
8,973 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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