Cheap flights from Chicago O'Hare Intl Airport to Ireland from $210

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 O'Hare Intl Airport to Ireland departing on 11/2. 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 O'Hare Intl Airport to Ireland

Cheap round-trip flights

TAP AIR PORTUGAL Logo
8:15 pm - 11:20 pmORD-DUB
21h 05m1 stop
TAP AIR PORTUGAL Logo
4:25 am - 3:15 pmDUB-ORD
16h 50m1 stop
$402TAP AIR PORTUGAL
Find Deal
Fri, Nov 7 - Thu, Nov 13
TAP AIR PORTUGAL Logo
6:00 pm - 12:05 amORD-DUB
24h 05m1 stop
TAP AIR PORTUGAL Logo
4:55 pm - 4:00 pmDUB-ORD
28h 05m1 stop
$403TAP AIR PORTUGAL
Find Deal
Thu, Oct 23 - Tue, Oct 28
American Airlines Logo
6:45 pm - 11:30 amORD-SNN
10h 45m1 stop
American Airlines Logo
7:50 am - 6:00 pmSNN-ORD
15h 10m1 stop
$535American Airlines
Find Deal
Tue, Jan 6 - Thu, Mar 12
American Airlines Logo
2:50 pm - 11:30 amORD-SNN
14h 40m2 stops
American Airlines Logo
7:50 am - 2:50 pmSNN-ORD
12h 00m1 stop
$539American Airlines
Find Deal
Tue, Jan 6 - Thu, Mar 12
United Airlines Logo
6:00 pm - 7:30 amORD-SNN
7h 30mnonstop
United Airlines Logo
9:45 am - 12:00 pmSNN-ORD
8h 15mnonstop
$590United Airlines
Find Deal
Mon, Sep 1 - Tue, Sep 9
United Airlines Logo
6:00 pm - 7:30 amORD-SNN
7h 30mnonstop
United Airlines Logo
9:45 am - 12:00 pmSNN-ORD
8h 15mnonstop
$592United Airlines
Find Deal
Mon, Sep 1 - Tue, Sep 9
British Airways Logo
8:45 pm - 11:10 amORD-ORK
32h 25m1 stop
British Airways Logo
11:55 am - 7:45 pmORK-ORD
12h 50m1 stop
$786British Airways
Find Deal
Sun, Jan 4 - Wed, Mar 11
British Airways Logo
6:45 pm - 12:25 pmORD-NOC
11h 40m1 stop
British Airways Logo
1:00 pm - 1:50 pmNOC-ORD
30h 50m1 stop
$907British Airways
Find Deal
Sun, Nov 9 - Sun, Nov 16
Aer Lingus Logo
3:45 pm - 12:35 pmORD-NOC
14h 50m2 stops
Aer Lingus Logo
1:05 pm - 7:00 pmNOC-ORD
35h 55m2 stops
$970Aer Lingus
Find Deal
Fri, Sep 19 - Sat, Oct 4
Aer Lingus Logo
3:45 pm - 2:00 pmORD-CFN
16h 15m1 stop
Aer Lingus Logo
2:30 pm - 2:00 pmCFN-ORD
29h 30m1 stop
$1,132Aer Lingus
Find Deal
Wed, Aug 13 - Sat, Aug 16

Icelandair flights from Chicago O'Hare Intl Airport to Ireland

Our best Icelandair deals on Chicago O'Hare Intl Airport to Ireland flight tickets
Icelandair
Aug 9
ORD7:25 pmChicago O'Hare Intl
9h 40m
1 stop
DUB11:05 amDublin
Aug 19
DUB2:15 pmDublin
13h 00m
1 stop
ORD9:15 pmChicago O'Hare Intl
Icelandair
Aug 9
ORD7:25 pmChicago O'Hare Intl
9h 40m
1 stop
DUB11:05 amDublin
Aug 20
DUB12:15 pmDublin
15h 00m
1 stop
ORD9:15 pmChicago O'Hare Intl
Icelandair
Aug 8
ORD10:15 pmChicago O'Hare Intl
30h 50m
1 stop
DUB11:05 amDublin
Aug 20
DUB12:15 pmDublin
12h 00m
1 stop
ORD6:15 pmChicago O'Hare Intl

TAP AIR PORTUGAL flights from Chicago O'Hare Intl Airport to Ireland

Our best TAP AIR PORTUGAL deals on Chicago O'Hare Intl Airport to Ireland flight tickets
TAP AIR PORTUGAL
Nov 7
ORD8:15 pmChicago O'Hare Intl
21h 05m
1 stop
DUB11:20 pmDublin
Nov 13
DUB4:25 amDublin
16h 50m
1 stop
ORD3:15 pmChicago O'Hare Intl
TAP AIR PORTUGAL
Oct 23
ORD6:00 pmChicago O'Hare Intl
24h 05m
1 stop
DUB12:05 amDublin
Oct 28
DUB4:55 pmDublin
28h 05m
1 stop
ORD4:00 pmChicago O'Hare Intl
TAP AIR PORTUGAL
Oct 23
ORD6:00 pmChicago O'Hare Intl
24h 05m
1 stop
DUB12:05 amDublin
Oct 28
DUB4:55 pmDublin
28h 05m
1 stop
ORD4:00 pmChicago O'Hare Intl

momondo Fare Finder

 
Customize your flight search to find flights from Chicago O'Hare Intl Airport 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 July 31, 2025.
Use the filters below to find and compare flights from Chicago O'Hare Intl Airport to Ireland that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Fri 11/7

8:15 pm-11:20 pm

1 stop21h 05m

Dublin

Thu 11/13

4:25 am-3:15 pm

1 stop16h 50m

$402

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Thu 10/23

6:00 pm-12:05 am

1 stop24h 05m

Dublin

Tue 10/28

4:55 pm-4:00 pm

1 stop28h 05m

$403

ChicagoShannon

ORD - SNN

ORDSNN

Chicago O'Hare Intl

Tue 1/6

6:45 pm-11:30 am

1 stop10h 45m

Shannon

Thu 3/12

7:50 am-6:00 pm

1 stop15h 10m

$535

ChicagoShannon

ORD - SNN

ORDSNN

Chicago O'Hare Intl

Tue 1/6

2:50 pm-11:30 am

2 stops14h 40m

Shannon

Thu 3/12

7:50 am-2:50 pm

1 stop12h 00m

$539

ChicagoShannon

ORD - SNN

ORDSNN

Chicago O'Hare Intl

Mon 9/1

6:00 pm-7:30 am

Nonstop7h 30m

Shannon

Tue 9/9

9:45 am-12:00 pm

Nonstop8h 15m

$590

ChicagoShannon

ORD - SNN

ORDSNN

Chicago O'Hare Intl

Mon 9/1

6:00 pm-7:30 am

Nonstop7h 30m

Shannon

Tue 9/9

9:45 am-12:00 pm

Nonstop8h 15m

$592

ChicagoCork

ORD - ORK

ORDORK

Chicago O'Hare Intl

Sun 1/4

8:45 pm-11:10 am

1 stop32h 25m

Cork

Wed 3/11

11:55 am-7:45 pm

1 stop12h 50m

$786

ChicagoKnock

ORD - NOC

ORDNOC

Chicago O'Hare Intl

Sun 11/9

6:45 pm-12:25 pm

1 stop11h 40m

Knock Intl

Sun 11/16

1:00 pm-1:50 pm

1 stop30h 50m

$907

ChicagoKnock

ORD - NOC

ORDNOC

Chicago O'Hare Intl

Fri 9/19

3:45 pm-12:35 pm

2 stops14h 50m

Knock Intl

Sat 10/4

1:05 pm-7:00 pm

2 stops35h 55m

$970

ChicagoDonegal

ORD - CFN

ORDCFN

Chicago O'Hare Intl

Wed 8/13

3:45 pm-2:00 pm

1 stop16h 15m

Donegal

Sat 8/16

2:30 pm-2:00 pm

1 stop29h 30m

$1,132

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 O'Hare Intl Airport 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, January is the cheapest month to fly from Chicago O'Hare Intl Airport to Ireland. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $524. If you aren’t able to travel to Ireland during the month of January, then flying in November is also cheap. Prices for this month can be found on momondo for an average of $542.

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 $744. This is often the case because there is less demand to fly during this day of the week. Flights from Chicago O'Hare Intl Airport to Ireland on a Friday will generally be more expensive and average around $820. 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 O'Hare Intl Airport 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 $782.

What is the cheapest Chicago O'Hare Intl to Ireland flight route?

Fly from Chicago O'Hare Intl to Dublin for the best Chicago O'Hare Intl - 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 O'Hare Intl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Ireland for around $691 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Ireland from Chicago O'Hare Intl Airport for as low as $630 on momondo.

What cabin class options are available on Chicago O'Hare Intl to Ireland flights?

There are 3 cabin classes available to choose from on Chicago O'Hare Intl 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 O'Hare Intl Airport to Ireland flights?

You could potentially save up to 55% on your flight if you consider stops on a Chicago O'Hare Intl Airport to Ireland flight.

Cheap Chicago O'Hare Intl Airport to Ireland flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Chicago O'Hare Intl Airport to Ireland

Best Price Found

$210

Fastest flight time

7h 25m

Direct flights

Every day

Airports in Ireland

4 airports
The best one-way flight to Ireland from Chicago O'Hare Intl Airport in the past 72 hours is $210. The best round-trip flight deal from Chicago O'Hare Intl Airport to Ireland found on momondo in the last 72 hours is $402.
The fastest flight from Chicago O'Hare Intl Airport to Ireland takes 7h 25m
Direct flights go from Chicago O'Hare Intl Airport to Ireland every day.
There are 4 airports near Ireland: Dublin (DUB), Shannon (SNN), Knock Intl (NOC), Cork (ORK)

  • When did momondo last update prices for flights from Chicago O'Hare Intl Airport to Ireland?

    Prices for flights from Chicago O'Hare Intl Airport to Ireland are updated daily.

  • How many operators does momondo search for flights from Chicago O'Hare Intl Airport to Ireland?

  • How old do you have to be to fly from Chicago O'Hare Intl Airport to Ireland?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Chicago O'Hare Intl Airport 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 O'Hare Intl Airport to Ireland?


Best airlines flying from Chicago O'Hare Intl Airport to Ireland

Compare and see reviews for airlines that fly from Chicago O'Hare Intl Airport to Ireland with momondo
Airline
Rating
Free Cancellation
Price
JetBluePriceFrom $51Free CancellationRating
7.2
2,914 reviews
Search JetBlue flights
IcelandairPriceFrom $353Free CancellationRating
7.0
520 reviews
Search Icelandair flights
TAP AIR PORTUGALPriceFrom $393Free CancellationRating
7.1
1,933 reviews
Search TAP AIR PORTUGAL flights
Scandinavian AirlinesPriceFrom $400Free CancellationRating
7.3
1,457 reviews
Search Scandinavian Airlines flights
Aer LingusPriceFrom $452Free CancellationRating
7.1
1,192 reviews
Search Aer Lingus flights
SWISSPriceFrom $473Free CancellationRating
7.5
1,686 reviews
Search SWISS flights
American AirlinesPriceFrom $511Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
IberiaPriceFrom $512Free CancellationRating
7.0
2,859 reviews
Search Iberia flights
British AirwaysPriceFrom $523Free CancellationRating
6.6
7,222 reviews
Search British Airways flights
FinnairPriceFrom $526Free CancellationRating
7.6
1,316 reviews
Search Finnair flights

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Chicago to Ireland. Millions of users trust and use momondo every year so you are in good hands.

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 provides multiple filters to help you find the best flight to Ireland from Chicago. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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.


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