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Cheap flights from Chicago to Ireland from $230

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 11/18. 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 round-trip flights

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American Airlines Logo
6:30 pm - 4:45 pmORD-SNN
16h 15m1 stop
American Airlines Logo
7:50 am - 3:25 pmSNN-ORD
13h 35m1 stop
$470American Airlines
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Sun, Nov 9 - Tue, Nov 18
Air Canada Logo
9:20 pm - 7:10 amORD-DUB
27h 50m1 stop
Air Canada Logo
9:00 am - 6:39 pmDUB-ORD
15h 39m1 stop
$470Air Canada
Find Deal
Sat, Nov 8 - Fri, Nov 21
Scandinavian Airlines Logo
7:20 pm - 11:45 amORD-DUB
34h 25m1 stop
Scandinavian Airlines Logo
7:05 pm - 4:45 pmDUB-ORD
27h 40m1 stop
$471Scandinavian Airlines
Find Deal
Wed, Nov 26 - Tue, Dec 2
Aer Lingus Logo
7:40 pm - 9:00 amORD-DUB
7h 20mnonstop
Aer Lingus Logo
3:20 pm - 5:55 pmDUB-ORD
8h 35mnonstop
$472Aer Lingus
Find Deal
Sun, Nov 16 - Sat, Nov 22
American Airlines Logo
5:10 pm - 11:10 amORD-ORK
12h 00m1 stop
American Airlines Logo
7:40 am - 5:00 pmORK-ORD
15h 20m1 stop
$472American Airlines
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Sun, Nov 9 - Tue, Nov 25
United Airlines Logo
2:39 pm - 10:20 amORD-DUB
13h 41m1 stop
United Airlines Logo
10:40 am - 1:30 pmDUB-ORD
8h 50mnonstop
$473United Airlines
Find Deal
Wed, Dec 10 - Tue, Dec 16
United Airlines Logo
6:28 pm - 7:10 amORD-DUB
30h 42m1 stop
United Airlines Logo
10:40 am - 1:30 pmDUB-ORD
8h 50mnonstop
$475United Airlines
Find Deal
Sat, Dec 6 - Tue, Dec 16
Scandinavian Airlines Logo
7:20 pm - 10:45 amORD-DUB
33h 25m2 stops
Scandinavian Airlines Logo
10:10 am - 4:45 pmDUB-ORD
12h 35m1 stop
$479Scandinavian Airlines
Find Deal
Sat, Feb 28 - Sat, Mar 7
Icelandair Logo
6:30 pm - 10:15 amORD-DUB
9h 45m1 stop
Icelandair Logo
11:30 am - 5:20 pmDUB-ORD
11h 50m1 stop
$497Icelandair
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Fri, Dec 5 - Tue, Dec 16
Aer Lingus Logo
9:00 pm - 10:20 amORD-DUB
7h 20mnonstop
Aer Lingus Logo
4:40 pm - 7:15 pmDUB-ORD
8h 35mnonstop
$512Aer Lingus
Find Deal
Fri, Feb 6 - Sat, Feb 14

Air Canada flights from Chicago to Ireland

Our best Air Canada deals on Chicago to Ireland flight tickets
Air Canada
Nov 8
ORD9:20 pmChicago O'Hare Intl
27h 50m
1 stop
DUB7:10 amDublin
Nov 21
DUB9:00 amDublin
15h 39m
1 stop
ORD6:39 pmChicago O'Hare Intl
$470
Find similar
Air Canada
Nov 14
ORD3:55 pmChicago O'Hare Intl
9h 15m
1 stop
DUB7:10 amDublin
Nov 28
DUB9:00 amDublin
12h 10m
1 stop
ORD3:10 pmChicago O'Hare Intl
$511
Find similar
Air Canada
Dec 6
ORD5:55 pmChicago O'Hare Intl
31h 15m
2 stops
DUB7:10 amDublin
Dec 15
DUB9:00 amDublin
12h 10m
1 stop
ORD3:10 pmChicago O'Hare Intl
$520
Find similar

Scandinavian Airlines flights from Chicago to Ireland

Our best Scandinavian Airlines deals on Chicago to Ireland flight tickets
Scandinavian Airlines
Nov 26
ORD7:20 pmChicago O'Hare Intl
34h 25m
1 stop
DUB11:45 amDublin
Dec 2
DUB7:05 pmDublin
27h 40m
1 stop
ORD4:45 pmChicago O'Hare Intl
$471
Find similar
Scandinavian Airlines
Feb 28
ORD7:20 pmChicago O'Hare Intl
33h 25m
2 stops
DUB10:45 amDublin
Mar 7
DUB10:10 amDublin
12h 35m
1 stop
ORD4:45 pmChicago O'Hare Intl
$479
Find similar
Scandinavian Airlines
Nov 29
ORD7:20 pmChicago O'Hare Intl
34h 25m
1 stop
DUB11:45 amDublin
Dec 5
DUB6:55 pmDublin
27h 50m
2 stops
ORD4:45 pmChicago O'Hare Intl
$492
Find similar

momondo Fare Finder

 
Customize 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 832,500 searches. Data last updated October 27, 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 11/9

6:30 pm-4:45 pm

1 stop16h 15m

Shannon

Tue 11/18

7:50 am-3:25 pm

1 stop13h 35m

$470

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Sat 11/8

9:20 pm-7:10 am

1 stop27h 50m

Dublin

Fri 11/21

9:00 am-6:39 pm

1 stop15h 39m

$470

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Wed 11/26

7:20 pm-11:45 am

1 stop34h 25m

Dublin

Tue 12/2

7:05 pm-4:45 pm

1 stop27h 40m

$471

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Sun 11/16

7:40 pm-9:00 am

Nonstop7h 20m

Dublin

Sat 11/22

3:20 pm-5:55 pm

Nonstop8h 35m

$472

ChicagoCork

ORD - ORK

ORDORK

Chicago O'Hare Intl

Sun 11/9

5:10 pm-11:10 am

1 stop12h 00m

Cork

Tue 11/25

7:40 am-5:00 pm

1 stop15h 20m

$472

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Wed 12/10

2:39 pm-10:20 am

1 stop13h 41m

Dublin

Tue 12/16

10:40 am-1:30 pm

Nonstop8h 50m

$473

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Sat 12/6

6:28 pm-7:10 am

1 stop30h 42m

Dublin

Tue 12/16

10:40 am-1:30 pm

Nonstop8h 50m

$475

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Sat 2/28

7:20 pm-10:45 am

2 stops33h 25m

Dublin

Sat 3/7

10:10 am-4:45 pm

1 stop12h 35m

$479

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Fri 12/5

6:30 pm-10:15 am

1 stop9h 45m

Dublin

Tue 12/16

11:30 am-5:20 pm

1 stop11h 50m

$497

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Fri 2/6

9:00 pm-10:20 am

Nonstop7h 20m

Dublin

Sat 2/14

4:40 pm-7:15 pm

Nonstop8h 35m

$512

Flights are sorted by cheapest round-trip 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?

In general, February is the cheapest month to fly from Chicago to Ireland. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $558. If you aren’t able to travel to Ireland during the month of February, then flying in January is also cheap. Prices for this month can be found on momondo for an average of $563.

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 Tuesday when prices can be found for as low as $759. This is often the case because there is less demand to fly during this day of the week. Flights from Chicago to Ireland on a Friday will generally be more expensive and average around $841. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

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

According to our data, the cheapest time of day to fly to Ireland is in the morning. momondo users have found flights departing from Chicago to Ireland in the morning for as low as $714. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. In contrast, the most expensive time of day to depart to Ireland is in the afternoon when prices are around $803.

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 $703 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Ireland from Chicago for as low as $633 on momondo.

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

There are 3 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 49% 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

Best Price Found

$444

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 $444. The best round-trip flight deal from Chicago to Ireland found on momondo in the last 72 hours is $588.
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 refresh daily.

  • 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?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Chicago to Ireland.

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

    The travel and health documents you'll need for your trip to Ireland may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Ireland. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • 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
JetBluePriceFrom $51Free CancellationRating
7.2
2,907 reviews
Search JetBlue flights
IcelandairPriceFrom $349Free CancellationRating
7.1
562 reviews
Search Icelandair flights
TAP AIR PORTUGALPriceFrom $393Free CancellationRating
7.1
2,033 reviews
Search TAP AIR PORTUGAL flights
Scandinavian AirlinesPriceFrom $400Free CancellationRating
7.4
1,543 reviews
Search Scandinavian Airlines flights
SWISSPriceFrom $473Free CancellationRating
7.5
1,774 reviews
Search SWISS flights
LufthansaPriceFrom $476Free CancellationRating
6.8
7,532 reviews
Search Lufthansa flights
Aer LingusPriceFrom $497Free CancellationRating
7.2
1,360 reviews
Search Aer Lingus flights
British AirwaysPriceFrom $512Free CancellationRating
6.7
7,479 reviews
Search British Airways flights
Air CanadaPriceFrom $523Free CancellationRating
7.1
10,370 reviews
Search Air Canada flights
Turkish AirlinesPriceFrom $528Free CancellationRating
7.3
4,029 reviews
Search Turkish Airlines flights

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Chicago to Ireland for you.

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?

momondo helps you find the best flight between Chicago and Ireland by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

Yes momondo offers price alerts on flights to Ireland from Chicago. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

An easier way to manage your Ireland trip

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Find better results for your trip to Ireland

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