How long is the flight from Chicago O'Hare Intl Airport to Ireland?

Departing from Chicago O'Hare Intl Airport to Ireland will take you 11h 06m. The distance between Chicago O'Hare Intl Airport and Ireland is about 3661 mi. Both multi-stop and nonstop flights can be found to your destination and back.

In terms of precipitation, rainfall in Ireland ranges from 1.9 - 3.1 inches per month. October is typically the wettest month, when rainfall can reach 3.1 in. February is typically the driest time to visit Ireland when rainfall is around 1.9 in.

If weather is an important factor for your trip to Ireland, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 60.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 41.0 F).

What are the most popular routes from Chicago O'Hare Intl Airport to Ireland?

When deciding which route to take from Chicago O'Hare Intl Airport to Ireland consider Chicago O'Hare Intl - Dublin, Chicago O'Hare Intl - Shannon or Chicago O'Hare Intl - Cork as they are the most popular.

What are the cheapest flights from Chicago O'Hare Intl Airport to Ireland?

The cheapest flight price from Chicago O'Hare Intl Airport to Ireland is $394. On average you can expect to pay $2,923. The most popular route, (Chicago O'Hare Intl - Dublin), can usually be booked for $348.

What are the most reliable airlines from Chicago O'Hare Intl Airport to Ireland?

No one likes to see their flight delayed. When booking a flight from Chicago O'Hare Intl Airport to Ireland consider choosing American Airlines (76%), Aer Lingus (76%) or Iberia (76%) as they are the most reliable in getting you off to your destination on time.

What are the most popular airlines that fly from Chicago O'Hare Intl Airport to Ireland?

The most popular airlines flying from Chicago O'Hare Intl Airport to Ireland are Aer Lingus, United Airlines and American Airlines. Something to consider prior to booking your flight.

Can I find deals for flights from O'Hare Intl to Ireland that include hotel bookings?

Yes. In addition to deals on O'Hare Intl to Ireland flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from O'Hare Intl to Ireland?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from O'Hare Intl to Ireland.

Can I find deals for business class flights from O'Hare Intl to Ireland?

Yes. Cheapflights offers flight deals from O'Hare Intl to Ireland by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$226+ Cheap Flights from Chicago O'Hare Intl Airport to Ireland

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Find flight deals from O'Hare Intl to Ireland

Cheapest flights from O'Hare Intl to Ireland
Explore the most affordable flight options available from O'Hare Intl to Ireland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 28, 2025.

Sun 11/98:40 pmORD - SNN

1 stop14h 05mAmerican Airlines

Tue 11/187:50 amSNN - ORD

1 stop16h 55mAmerican Airlines

Deal found 10/28

$470

Sun 11/96:35 pmORD - DUB

Nonstop7h 35mUnited Airlines

Tue 11/1810:40 amDUB - ORD

Nonstop8h 50mUnited Airlines

Deal found 10/28

$470

Wed 11/267:20 pmORD - DUB

1 stop34h 25mScandinavian Airlines

Tue 12/212:30 pmDUB - ORD

1 stop34h 15mScandinavian Airlines

Deal found 10/27

$471

Sat 12/276:00 pmORD - DUB

2 stops31h 10mMultiple Airlines

Mon 1/125:55 pmDUB - ORD

1 stop30h 30mMultiple Airlines

Deal found 10/26

$472

Wed 12/103:38 pmORD - DUB

1 stop12h 17mUnited Airlines

Wed 12/1710:40 amDUB - ORD

Nonstop8h 50mUnited Airlines

Deal found 10/27

$473

Tue 11/181:25 pmORD - DUB

2 stops13h 55mMultiple Airlines

Sun 11/239:45 amDUB - ORD

1 stop15h 07mMultiple Airlines

Deal found 10/27

$474

Sat 12/68:15 pmORD - DUB

1 stop28h 55mUnited Airlines

Tue 12/1610:40 amDUB - ORD

Nonstop8h 50mUnited Airlines

Deal found 10/27

$475

Wed 11/124:25 pmORD - ORK

1 stop25h 00mKLM

Tue 11/185:15 pmORK - ORD

1 stop27h 05mKLM

Deal found 10/28

$475

Wed 12/38:55 amORD - DUB

2 stops17h 50mDelta

Fri 12/128:50 amDUB - ORD

1 stop11h 30mDelta

Deal found 10/27

$476

Tue 12/99:50 pmORD - DUB

1 stop13h 20mLufthansa

Sun 12/145:10 amDUB - ORD

1 stop14h 00mLufthansa

Deal found 10/27

$477

Wed 11/1910:35 pmORD - DUB

1 stop12h 00mLufthansa

Wed 11/2610:50 amDUB - ORD

1 stop13h 35mLufthansa

Deal found 10/26

$478

Wed 11/59:50 pmORD - DUB

1 stop13h 20mLufthansa

Tue 11/185:00 amDUB - ORD

2 stops19h 19mLufthansa

Deal found 10/26

$479

Best flights from O'Hare Intl to Ireland
Discover carefully curated flight deals from O'Hare Intl to Ireland that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 28, 2025.

Sun 11/98:40 pmORD - SNN

1 stop14h 05mAmerican Airlines

Tue 11/187:50 amSNN - ORD

1 stop16h 55mAmerican Airlines

Deal found 10/28

$470

Wed 12/37:00 amORD - DUB

2 stops18h 50mDelta

Tue 12/96:00 amDUB - ORD

2 stops16h 57mDelta

Deal found 10/26

$472

Wed 12/102:24 pmORD - DUB

1 stop11h 06mUnited Airlines

Tue 12/1610:40 amDUB - ORD

Nonstop8h 50mUnited Airlines

Deal found 10/27

$473

Wed 11/124:25 pmORD - ORK

1 stop25h 00mKLM

Tue 11/185:15 pmORK - ORD

1 stop27h 05mKLM

Deal found 10/28

$475

Wed 3/45:10 pmORD - NOC

1 stop13h 15mBritish Airways

Sun 3/81:00 pmNOC - ORD

2 stops55h 30mBritish Airways

Deal found 10/25

$740

Sun 12/74:35 pmORD - DUB

1 stop11h 20mUnited Airlines

Thu 12/1810:40 amDUB - ORD

Nonstop8h 50mUnited Airlines

Deal found 10/27

$473

Tue 3/33:20 pmORD - SNN

2 stops14h 10mAmerican Airlines

Wed 3/117:50 amSNN - ORD

1 stop13h 35mAmerican Airlines

Deal found 10/28

$475

Tue 11/182:30 pmORD - DUB

1 stop11h 00mUnited Airlines

Tue 11/2510:40 amDUB - ORD

Nonstop8h 50mUnited Airlines

Deal found 10/26

$473

Sun 1/116:08 pmORD - ORK

2 stops14h 52mDelta

Tue 1/271:25 pmORK - ORD

1 stop30h 55mDelta

Deal found 10/28

$539

Thu 4/235:40 pmORD - SNN

1 stop16h 30mAmerican Airlines

Fri 5/87:40 amSNN - ORD

1 stop15h 20mAmerican Airlines

Deal found 10/28

$520

Mon 3/308:15 pmORD - DUB

Nonstop7h 30mUnited Airlines

Wed 4/811:35 amDUB - ORD

Nonstop8h 05mUnited Airlines

Deal found 10/27

$473

Wed 12/34:25 pmORD - ORK

1 stop25h 00mKLM

Sun 12/76:00 amORK - ORD

1 stop14h 20mKLM

Deal found 10/27

$576

Wed 4/15:40 pmORD - SNN

1 stop11h 40mAmerican Airlines

Sat 4/187:40 amSNN - ORD

1 stop15h 20mAmerican Airlines

Deal found 10/25

$520

Mon 4/68:15 pmORD - DUB

Nonstop7h 30mUnited Airlines

Thu 4/1611:35 amDUB - ORD

Nonstop8h 05mUnited Airlines

Deal found 10/25

$473

Mon 12/84:25 pmORD - DUB

1 stop11h 30mUnited Airlines

Tue 12/1610:40 amDUB - ORD

Nonstop8h 50mUnited Airlines

Deal found 10/27

$473

Thu 12/45:10 pmORD - SNN

1 stop12h 20mAmerican Airlines

Thu 12/117:50 amSNN - ORD

2 stops16h 36mAmerican Airlines

Deal found 10/26

$530

Sun 12/75:25 pmORD - DUB

1 stop10h 30mUnited Airlines

Tue 12/1610:40 amDUB - ORD

Nonstop8h 50mUnited Airlines

Deal found 10/27

$473

Mon 11/106:30 pmORD - SNN

1 stop11h 00mAmerican Airlines

Mon 11/177:50 amSNN - ORD

2 stops17h 49mAmerican Airlines

Deal found 10/27

$530

Wed 12/38:35 pmORD - CFN

2 stops35h 25mBritish Airways

Sun 12/710:00 amCFN - ORD

2 stops35h 25mBritish Airways

Deal found 10/25

$791

Tue 12/93:35 pmORD - DUB

1 stop9h 55mUnited Airlines

Tue 12/1610:40 amDUB - ORD

Nonstop8h 50mUnited Airlines

Deal found 10/27

$473

Tue 1/206:25 pmORD - SNN

1 stop16h 20mAmerican Airlines

Tue 5/197:40 amSNN - ORD

1 stop14h 15mAmerican Airlines

Deal found 10/27

$537

Tue 3/318:15 pmORD - DUB

Nonstop7h 30mUnited Airlines

Thu 4/911:35 amDUB - ORD

Nonstop8h 05mUnited Airlines

Deal found 10/27

$473

Sun 11/96:30 pmORD - NOC

1 stop11h 55mBritish Airways

Sun 11/161:00 pmNOC - ORD

1 stop30h 50mBritish Airways

Deal found 10/27

$854

Thu 12/118:35 pmORD - ORK

1 stop18h 25mAmerican Airlines

Thu 12/187:40 amORK - ORD

2 stops18h 04mAmerican Airlines

Deal found 10/27

$556

Wed 4/224:15 pmORD - DUB

1 stop12h 05mUnited Airlines

Thu 4/3011:35 amDUB - ORD

Nonstop8h 05mUnited Airlines

Deal found 10/26

$478

Sat 3/288:15 pmORD - DUB

1 stop30h 00mUnited Airlines

Thu 4/911:35 amDUB - ORD

Nonstop8h 05mUnited Airlines

Deal found 10/27

$479

Mon 11/176:30 pmORD - NOC

1 stop11h 55mBritish Airways

Thu 11/201:00 pmNOC - ORD

2 stops31h 30mBritish Airways

Deal found 10/28

$1,899

Last-minute flights from O'Hare Intl to Ireland
Discover last-minute flight deals from O'Hare Intl to Ireland. Data last updated October 28, 2025 and is based on user searches.

Mon 10/2712:00 pmORD - DUB

1 stop14h 30mUnited Airlines

Tue 11/49:30 amDUB - ORD

1 stop11h 10mUnited Airlines

Deal found 10/27

$476

Mon 10/274:52 pmORD - DUB

1 stop10h 48mAmerican Airlines

Mon 11/310:45 amDUB - ORD

1 stop12h 15mAmerican Airlines

Deal found 10/26

$481

Tue 10/289:42 amORD - DUB

2 stops17h 18mDelta

Tue 11/116:00 amDUB - ORD

2 stops22h 30mDelta

Deal found 10/26

$472

Wed 11/59:50 pmORD - DUB

1 stop13h 20mLufthansa

Tue 11/185:00 amDUB - ORD

2 stops19h 19mLufthansa

Deal found 10/26

$479

Sun 11/98:40 pmORD - SNN

1 stop14h 05mAmerican Airlines

Tue 11/187:50 amSNN - ORD

1 stop16h 55mAmerican Airlines

Deal found 10/28

$470

Sun 11/96:35 pmORD - DUB

Nonstop7h 35mUnited Airlines

Tue 11/1810:40 amDUB - ORD

Nonstop8h 50mUnited Airlines

Deal found 10/28

$470

Wed 11/124:25 pmORD - ORK

1 stop25h 00mKLM

Tue 11/185:15 pmORK - ORD

1 stop27h 05mKLM

Deal found 10/28

$475

Tue 11/183:07 pmORD - DUB

1 stop10h 23mUnited Airlines

Tue 11/2510:40 amDUB - ORD

Nonstop8h 50mUnited Airlines

Deal found 10/28

$473

Tue 11/181:25 pmORD - DUB

2 stops13h 55mMultiple Airlines

Sun 11/239:45 amDUB - ORD

1 stop15h 07mMultiple Airlines

Deal found 10/27

$474

Wed 11/1910:35 pmORD - DUB

1 stop12h 00mLufthansa

Wed 11/2610:50 amDUB - ORD

1 stop13h 35mLufthansa

Deal found 10/26

$478

Wed 11/267:20 pmORD - DUB

1 stop34h 25mScandinavian Airlines

Tue 12/212:30 pmDUB - ORD

1 stop34h 15mScandinavian Airlines

Deal found 10/27

$471

Sun 11/303:55 pmORD - DUB

1 stop9h 15mUnited Airlines

Tue 12/910:40 amDUB - ORD

Nonstop8h 50mUnited Airlines

Deal found 10/27

$475

One-way flights from O'Hare Intl to Ireland
Search for one-way flight options from O'Hare Intl to Ireland. Find affordable one-way fares based on user searches. Data last updated October 28, 2025.

Sun 1/256:40 amORD - DUB

2 stops29h 05mMultiple Airlines

Deal found 10/28

$226

Thu 1/226:40 amORD - DUB

2 stops48h 00mMultiple Airlines

Deal found 10/26

$237

Mon 1/266:40 amORD - DUB

2 stops34h 20mMultiple Airlines

Deal found 10/28

$245

Wed 11/196:40 amORD - ORK

2 stops22h 25mMultiple Airlines

Deal found 10/28

$253

Tue 11/253:53 pmORD - SNN

2 stops58h 17mMultiple Airlines

Deal found 10/26

$256

Sat 1/2410:18 amORD - DUB

2 stops30h 42mMultiple Airlines

Deal found 10/28

$262

Wed 11/126:45 amORD - DUB

1 stop15h 35mJetBlue

Deal found 10/27

$264

Wed 1/218:45 amORD - DUB

1 stop13h 35mJetBlue

Deal found 10/26

$265

Tue 12/97:00 amORD - DUB

1 stop19h 40mJetBlue

Deal found 10/27

$270

Wed 12/108:36 amORD - DUB

1 stop14h 39mMultiple Airlines

Deal found 10/26

$273

Wed 11/126:40 amORD - SNN

2 stops26h 00mMultiple Airlines

Deal found 10/28

$275

Wed 11/126:40 amORD - DUB

3 stops32h 25mMultiple Airlines

Deal found 10/27

$277

Cheap flight deals from O'Hare Intl to Ireland

Most accurate provider	Gotogate 3 stars
Most trusted provider	Gotogate 3 stars
Round-trip from	$469 (United Airlines)
One-way from	$226 (Kiwi.com)
Popular in	June
Cheapest in	February
Average price	$643
Good round-trip deal	$588 or less
Good one-way deal	$444 or less

Provider with most accurate pricing for Chicago (CHI)-Dublin flight deals.

Search Deals

Provider most trusted by Cheapflights users for Chicago (CHI)-Dublin flights.

Search Deals

From Chicago O'Hare Intl to Ireland

Search Deals

One-way flight from Chicago O'Hare Intl to Ireland

Search Deals

Highest demand for flights based on searches. 15% potential increase in price ($123 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease ($18 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in October 2025

Search Deals

Price to beat on a round-trip flight from Chicago O'Hare Intl to Ireland.

Search Deals

Price to beat on a one-way flight from Chicago O'Hare Intl to Ireland.

Search Deals

Cheapflights Fare Finder

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

ChicagoShannon

ORD - SNN

ORDSNN

Chicago O'Hare Intl

Sun 11/9

8:40 pm-4:45 pm

1 stop14h 05m

Shannon

Tue 11/18

7:50 am-6:45 pm

1 stop16h 55m

$470

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Wed 12/3

7:00 am-7:50 am

2 stops18h 50m

Dublin

Tue 12/9

6:00 am-4:57 pm

2 stops16h 57m

$472

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Wed 12/10

2:24 pm-7:30 am

1 stop11h 06m

Dublin

Tue 12/16

10:40 am-1:30 pm

Nonstop8h 50m

$473

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Sun 12/7

4:35 pm-9:55 am

1 stop11h 20m

Dublin

Thu 12/18

10:40 am-1:30 pm

Nonstop8h 50m

$473

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Tue 11/18

2:30 pm-7:30 am

1 stop11h 00m

Dublin

Tue 11/25

10:40 am-1:30 pm

Nonstop8h 50m

$473

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Mon 3/30

8:15 pm-9:45 am

Nonstop7h 30m

Dublin

Wed 4/8

11:35 am-1:40 pm

Nonstop8h 05m

$473

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Mon 4/6

8:15 pm-9:45 am

Nonstop7h 30m

Dublin

Thu 4/16

11:35 am-1:40 pm

Nonstop8h 05m

$473

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Mon 12/8

4:25 pm-9:55 am

1 stop11h 30m

Dublin

Tue 12/16

10:40 am-1:30 pm

Nonstop8h 50m

$473

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Sun 12/7

5:25 pm-9:55 am

1 stop10h 30m

Dublin

Tue 12/16

10:40 am-1:30 pm

Nonstop8h 50m

$473

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Tue 12/9

3:35 pm-7:30 am

1 stop9h 55m

Dublin

Tue 12/16

10:40 am-1:30 pm

Nonstop8h 50m

$473

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/28

Showing 1-10 of 46 results

...

Best time to book a flight from O'Hare Intl to Ireland

Have a flexible travel schedule? Discover the best time to fly to Ireland from O'Hare Intl with our price prediction graph.

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Chicago O'Hare Intl Airport to Ireland

What is the cheapest month to book a flight from Chicago O'Hare Intl Airport to Ireland?

Currently, January is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Ireland (average of $378). Flying from Chicago O'Hare Intl Airport to Ireland in June is currently the most expensive (average of $679). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from ORD to IE?

When flying from Chicago O'Hare Intl Airport to Ireland, the time of day you fly usually plays a role in the price. Save by searching for a flight at noon, which can drop the price by up to 29% versus a flight in the afternoon.

What is the cheapest day to fly from Chicago O'Hare Intl Airport to Ireland?

Travelers seeking maximum savings on their Chicago O'Hare Intl Airport to Ireland flight should consider departing on Wednesday mornings when fares are most often at their lowest. Friday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing Ireland

Read reviews from past customers who have flown United Airlines, American Airlines, and Aer Lingus from Chicago O'Hare Intl Airport to Ireland. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

United Airlines

7.4

Good

9,001 reviews

Reviews

1 / 20

2.0

Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000

United Airlines

7.4

Good

9,001 reviews

United Airlines

7.4

Good

9,001 reviews

Reviews

1 / 20

2.0

Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000

American Airlines

7.2

Good

11,032 reviews

United Airlines

7.4

Good

9,001 reviews

Reviews

1 / 20

2.0

Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000

Aer Lingus

7.2

Good

1,361 reviews

United Airlines

7.4

Good

9,001 reviews

Reviews

1 / 20

2.0

Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000

Icelandair

7.1

Good

562 reviews

United Airlines

7.4

Good

9,001 reviews

Reviews

1 / 20

2.0

Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000

Iberia

7.0

Good

3,001 reviews

United Airlines

7.4

Good

9,001 reviews

Reviews

1 / 20

2.0

Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000

Related info for your journey

How long is the flight from Chicago O'Hare Intl Airport to Ireland?
Departing from Chicago O'Hare Intl Airport to Ireland will take you 11h 06m. The distance between Chicago O'Hare Intl Airport and Ireland is about 3661 mi. Both multi-stop and nonstop flights can be found to your destination and back.
What are the most popular routes from Chicago O'Hare Intl Airport to Ireland?
When deciding which route to take from Chicago O'Hare Intl Airport to Ireland consider Chicago O'Hare Intl - Dublin, Chicago O'Hare Intl - Shannon or Chicago O'Hare Intl - Cork as they are the most popular.
What are the most reliable airlines from Chicago O'Hare Intl Airport to Ireland?
No one likes to see their flight delayed. When booking a flight from Chicago O'Hare Intl Airport to Ireland consider choosing American Airlines (76%), Aer Lingus (76%) or Iberia (76%) as they are the most reliable in getting you off to your destination on time.
What are the cheapest flights from Chicago O'Hare Intl Airport to Ireland?
The cheapest flight price from Chicago O'Hare Intl Airport to Ireland is $394. On average you can expect to pay $2,923. The most popular route, (Chicago O'Hare Intl - Dublin), can usually be booked for $348.
Can I find deals for flights from O'Hare Intl to Ireland that include hotel bookings?
Yes. In addition to deals on O'Hare Intl to Ireland flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from O'Hare Intl to Ireland?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from O'Hare Intl to Ireland.
Can I find deals for business class flights from O'Hare Intl to Ireland?
Yes. Cheapflights offers flight deals from O'Hare Intl to Ireland by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Chicago O'Hare Intl Airport to Ireland?
Currently, January is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Ireland (average of $378). Flying from Chicago O'Hare Intl Airport to Ireland in June is currently the most expensive (average of $679). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for O'Hare Intl to Ireland

O'Hare Intl to Heathrow flights

O'Hare Intl to Charles de Gaulle flights

O'Hare Intl to Leonardo da Vinci/Fiumicino flights

O'Hare Intl to Madrid flights

O'Hare Intl to Frankfurt flights

O'Hare Intl to Dublin flights

O'Hare Intl to Istanbul flights

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O'Hare Intl to Gatwick flights

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O'Hare Intl to Barcelona-El Prat flights

O'Hare Intl to Amsterdam flights

O'Hare Intl to Munich flights

O'Hare Intl to Lisbon flights

O'Hare Intl to Zurich flights

O'Hare Intl to Stansted flights

O'Hare Intl to Athens flights

Midway to Heathrow flights

Midway to Charles de Gaulle flights

O'Hare Intl to Luton flights

O'Hare Intl to Malpensa flights

O'Hare Intl to Bruxelles-National flights

Midway to Leonardo da Vinci/Fiumicino flights

O'Hare Intl to Keflavik Intl flights

O'Hare Intl to Copenhagen flights

O'Hare Intl to Krakow flights

O'Hare Intl to Vienna flights

O'Hare Intl to Sabiha Gokcen flights

Midway to Madrid flights

O'Hare Intl to Beauvais-Tille flights

O'Hare Intl to Linate flights

Midway to Dublin flights

Midway to Frederic Chopin flights

O'Hare Intl to Prague flights

O'Hare Intl to Berlin flights

O'Hare Intl to Edinburgh flights

Midway to Lisbon flights

Midway to Barcelona-El Prat flights

Midway to Athens flights

O'Hare Intl to Belgrade flights

Midway to Frankfurt flights

O'Hare Intl to Frankfurt-Hahn flights

Midway to Gatwick flights

O'Hare Intl to Geneva flights

Midway to Amsterdam flights

O'Hare Intl to Glasgow Intl flights

O'Hare Intl to Skopje flights

O'Hare Intl to Porto flights

Midway to Keflavik Intl flights

Top 10 airlines flying from O'Hare Intl to Ireland

Airline	Cheapest	Average	Flexibility	On-time
JetBlue	Cheapest$51	Average$568	FlexibilityNo cancel fee	On-time62%
Icelandair	Cheapest$349	Average$562	FlexibilityNo cancel fee	On-time76%
TAP AIR PORTUGAL	Cheapest$393	Average$502	FlexibilityNo cancel fee	On-timeN/A
Scandinavian Airlines	Cheapest$400	Average$479	FlexibilityNo cancel fee	On-time77%
SWISS	Cheapest$473	Average$818	FlexibilityNo cancel fee	On-time79%
Lufthansa	Cheapest$476	Average$744	FlexibilityNo cancel fee	On-time76%
Aer Lingus	Cheapest$497	Average$720	FlexibilityNo cancel fee	On-timeN/A
British Airways	Cheapest$512	Average$865	FlexibilityNo cancel fee	On-time70%
Air Canada	Cheapest$523	Average$676	FlexibilityNo cancel fee	On-time67%
Turkish Airlines	Cheapest$528	Average$596	FlexibilityNo cancel fee	On-time77%

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$226+ Cheap flights from O'Hare Intl (ORD) to Ireland

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/25. Fares are subject to change and may not be available on all flights or dates of travel.

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Cheapest flights from O'Hare Intl to IrelandExplore the most affordable flight options available from O'Hare Intl to Ireland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 28, 2025.

Explore the most affordable flight options available from O'Hare Intl to Ireland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 28, 2025.

Cheap flight deals from O'Hare Intl to Ireland

Keep the following information in mind while searching for O'Hare Intl to Ireland flight deals. Data was last updated October 28, 2025.

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Find hourly flight availability from O'Hare Intl to Ireland. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 28, 2025.

What is the cheapest day to fly from Chicago O'Hare Intl Airport to Ireland?

Use this chart to determine the cheapest time to fly round-trip from O'Hare Intl to Ireland. Price data was last updated on December 16, 2024.

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Related info for your journey

Find useful and relevant information for your journey from O'Hare Intl to Ireland. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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What is the cheapest month to book a flight from Chicago O'Hare Intl Airport to Ireland?

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Alternative routes for O'Hare Intl to Ireland

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Top 10 airlines flying from O'Hare Intl to Ireland

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Cheapest flights from O'Hare Intl to Ireland
Explore the most affordable flight options available from O'Hare Intl to Ireland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 28, 2025.