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Cheap flights from Chicago to Ireland from $205

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 10/24. 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 round-trip flights

Icelandair Logo
10:15 pm - 11:05 amORD-DUB
30h 50m1 stop
Icelandair Logo
11:30 am - 6:20 pmDUB-ORD
11h 50m1 stop
$480Icelandair
Find Deal
Fri, Oct 17 - Sat, Nov 1
Icelandair Logo
6:30 pm - 10:15 amORD-DUB
9h 45m1 stop
Icelandair Logo
11:30 am - 5:20 pmDUB-ORD
11h 50m1 stop
$481Icelandair
Find Deal
Fri, Nov 7 - Mon, Nov 10
Scandinavian Airlines Logo
8:20 pm - 7:35 pmORD-DUB
18h 15m2 stops
Scandinavian Airlines Logo
6:55 pm - 5:45 pmDUB-ORD
27h 50m2 stops
$486Scandinavian Airlines
Find Deal
Sun, Oct 26 - Fri, Oct 31
Scandinavian Airlines Logo
7:20 pm - 6:20 pmORD-DUB
17h 00m1 stop
Scandinavian Airlines Logo
11:30 am - 4:45 pmDUB-ORD
59h 15m2 stops
$487Scandinavian Airlines
Find Deal
Wed, Nov 5 - Mon, Nov 10
United Airlines Logo
7:00 am - 10:20 amORD-DUB
22h 20m1 stop
United Airlines Logo
9:00 am - 9:13 amDUB-ORD
30h 13m1 stop
$506United Airlines
Find Deal
Tue, Oct 28 - Fri, Nov 7
Aer Lingus Logo
4:50 pm - 5:10 amORD-DUB
7h 20mnonstop
Aer Lingus Logo
11:30 am - 2:00 pmDUB-ORD
8h 30mnonstop
$509Aer Lingus
Find Deal
Tue, Oct 28 - Tue, Nov 18
United Airlines Logo
2:39 pm - 10:20 amORD-DUB
13h 41m1 stop
United Airlines Logo
9:00 am - 3:10 pmDUB-ORD
12h 10m1 stop
$518United Airlines
Find Deal
Wed, Nov 5 - Wed, Nov 12
American Airlines Logo
9:45 pm - 4:45 pmORD-SNN
13h 00m1 stop
American Airlines Logo
7:50 am - 5:00 pmSNN-ORD
15h 10m1 stop
$534American Airlines
Find Deal
Tue, Nov 4 - Tue, Nov 11
American Airlines Logo
9:45 pm - 4:45 pmORD-SNN
13h 00m1 stop
American Airlines Logo
7:50 am - 7:04 pmSNN-ORD
17h 14m2 stops
$544American Airlines
Find Deal
Tue, Nov 4 - Tue, Nov 11
Aer Lingus Logo
3:45 pm - 12:35 pmORD-NOC
14h 50m2 stops
Aer Lingus Logo
1:05 pm - 1:55 pmNOC-ORD
30h 50m1 stop
$888Aer Lingus
Find Deal
Wed, Oct 8 - Wed, Oct 15

Scandinavian Airlines flights from Chicago to Ireland

Our best Scandinavian Airlines deals on Chicago to Ireland flight tickets
Scandinavian Airlines
Oct 26
ORD8:20 pmChicago O'Hare Intl
18h 15m
2 stops
DUB7:35 pmDublin
Oct 31
DUB6:55 pmDublin
27h 50m
2 stops
ORD5:45 pmChicago O'Hare Intl
$486
Find similar
Scandinavian Airlines
Nov 5
ORD7:20 pmChicago O'Hare Intl
17h 00m
1 stop
DUB6:20 pmDublin
Nov 10
DUB11:30 amDublin
59h 15m
2 stops
ORD4:45 pmChicago O'Hare Intl
$487
Find similar
Scandinavian Airlines
Oct 7
ORD7:15 pmChicago O'Hare Intl
17h 00m
1 stop
DUB6:15 pmDublin
Oct 17
DUB12:20 pmDublin
33h 50m
2 stops
ORD4:10 pmChicago O'Hare Intl
$490
Find similar

JetBlue flights from Chicago to Ireland

Our best JetBlue deals on Chicago to Ireland flight tickets
JetBlue
Oct 12
ORD6:45 amChicago O'Hare Intl
19h 35m
1 stop
DUB8:20 amDublin
Oct 21
DUB10:40 amDublin
13h 38m
1 stop
ORD6:18 pmChicago O'Hare Intl
$525
Find similar
JetBlue
Oct 12
ORD6:45 amChicago O'Hare Intl
19h 35m
1 stop
DUB8:20 amDublin
Oct 21
DUB10:40 amDublin
28h 42m
1 stop
ORD9:22 amChicago O'Hare Intl
$527
Find similar
JetBlue
Sep 5
ORD9:42 amChicago O'Hare Intl
17h 18m
1 stop
DUB9:00 amDublin
Sep 19
DUB10:40 amDublin
28h 16m
1 stop
ORD8:56 amChicago O'Hare Intl
$563
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 August 26, 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 10/17

10:15 pm-11:05 am

1 stop30h 50m

Dublin

Sat 11/1

11:30 am-6:20 pm

1 stop11h 50m

$480

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Fri 11/7

6:30 pm-10:15 am

1 stop9h 45m

Dublin

Mon 11/10

11:30 am-5:20 pm

1 stop11h 50m

$481

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Sun 10/26

8:20 pm-7:35 pm

2 stops18h 15m

Dublin

Fri 10/31

6:55 pm-5:45 pm

2 stops27h 50m

$486

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Wed 11/5

7:20 pm-6:20 pm

1 stop17h 00m

Dublin

Mon 11/10

11:30 am-4:45 pm

2 stops59h 15m

$487

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Tue 10/28

7:00 am-10:20 am

1 stop22h 20m

Dublin

Fri 11/7

9:00 am-9:13 am

1 stop30h 13m

$506

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Tue 10/28

4:50 pm-5:10 am

Nonstop7h 20m

Dublin

Tue 11/18

11:30 am-2:00 pm

Nonstop8h 30m

$509

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Wed 11/5

2:39 pm-10:20 am

1 stop13h 41m

Dublin

Wed 11/12

9:00 am-3:10 pm

1 stop12h 10m

$518

ChicagoShannon

ORD - SNN

ORDSNN

Chicago O'Hare Intl

Tue 11/4

9:45 pm-4:45 pm

1 stop13h 00m

Shannon

Tue 11/11

7:50 am-5:00 pm

1 stop15h 10m

$534

ChicagoShannon

ORD - SNN

ORDSNN

Chicago O'Hare Intl

Tue 11/4

9:45 pm-4:45 pm

1 stop13h 00m

Shannon

Tue 11/11

7:50 am-7:04 pm

2 stops17h 14m

$544

ChicagoKnock

ORD - NOC

ORDNOC

Chicago O'Hare Intl

Wed 10/8

3:45 pm-12:35 pm

2 stops14h 50m

Knock Intl

Wed 10/15

1:05 pm-1:55 pm

1 stop30h 50m

$888

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 $542. 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 $554.

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 Monday when prices can be found for as low as $752. 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 $824. 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 $791.

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 $699 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 $641 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 11% 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

$467

Fastest flight time

7h 20m

Direct flights

Every day

Airports in Ireland

2 airports
The best one-way flight to Ireland from Chicago in the past 72 hours is $467. The best round-trip flight deal from Chicago to Ireland found on momondo in the last 72 hours is $602.
The fastest flight from Chicago to Ireland takes 7h 20m
Direct flights go from Chicago to Ireland every day.
There are 2 airports near Ireland: Dublin (DUB), Shannon (SNN)
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
2,918 reviews
Search JetBlue flights
IcelandairPriceFrom $355Free CancellationRating
7.0
533 reviews
Search Icelandair flights
TAP AIR PORTUGALPriceFrom $394Free CancellationRating
7.1
1,962 reviews
Search TAP AIR PORTUGAL flights
Scandinavian AirlinesPriceFrom $411Free CancellationRating
7.4
1,477 reviews
Search Scandinavian Airlines flights
Aer LingusPriceFrom $462Free CancellationRating
7.2
1,237 reviews
Search Aer Lingus flights
SWISSPriceFrom $473Free CancellationRating
7.6
1,711 reviews
Search SWISS flights
IberiaPriceFrom $522Free CancellationRating
7.0
2,891 reviews
Search Iberia flights
British AirwaysPriceFrom $525Free CancellationRating
6.7
7,309 reviews
Search British Airways flights
FinnairPriceFrom $526Free CancellationRating
7.6
1,320 reviews
Search Finnair flights
Turkish AirlinesPriceFrom $528Free CancellationRating
7.3
3,955 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

Popular cities in Ireland

Popular flights according to clicks in the last 7 days on momondo
Flights to Dublinfrom $301
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Flights to Corkfrom $379
Flights to Knockfrom $608
Flights to Milltown (Kerry)from $418
Flights to Donegalfrom $448