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O'Hare Intl

$367+ Cheap flights from Ireland to O'Hare Intl (ORD)

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 10/14. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — ORD
oct. 15 — oct. 221
mer. 10/15
mer. 10/22
1 adult, Economy
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Cheap flight deals from Ireland to O'Hare Intl

Keep the following information in mind while searching for Ireland to O'Hare Intl flight deals. Data was last updated septembre 15, 2025.

Round-trip from

$447
(Scandinavian Airlines)

One-way from

$367
(Kiwi.com)

Popular in

July

Cheapest in

January

Average price

$509

Good round-trip deal

$531 or less

Good one-way deal

$572 or less
From Ireland to Chicago O'Hare Intl
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One-way flight from Ireland to Chicago O'Hare Intl
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Highest demand for flights based on searches. 14% potential increase in price ($102 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($12 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Price to beat on a round-trip flight from Ireland to Chicago O'Hare Intl.
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Price to beat on a one-way flight from Ireland to Chicago O'Hare Intl.
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Find flight deals from Ireland to O'Hare Intl

Cheapest flights from Ireland to O'Hare Intl
Explore the most affordable flight options available from Ireland to O'Hare Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on septembre 15, 2025.

This Scandinavian Airlines deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer. 10/2911:30 amDUB - ORD
2 stops36h 15mScandinavian Airlines
dim. 11/27:20 pmORD - DUB
2 stops18h 15mScandinavian Airlines
Deal found 9/14$447
This Kiwi.com deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jeu. 10/235:55 amDUB - ORD
1 stop13h 00mLufthansa
lun. 11/39:50 pmORD - DUB
1 stop13h 20mLufthansa
Deal found 9/14$448
This TravelUp deal was found by Cheapflights users on 9/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure TravelUp is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 11/312:55 pmDUB - ORD
1 stop14h 26mMultiple Airlines
lun. 11/106:30 pmORD - DUB
1 stop12h 05mMultiple Airlines
Deal found 9/12$450
This Kiwi.com deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer. 10/2911:45 amDUB - ORD
1 stop14h 20mLufthansa
dim. 11/29:50 pmORD - DUB
1 stop13h 20mLufthansa
Deal found 9/14$451
This American Airlines deal was found by Cheapflights users on 9/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sam. 11/110:55 amDUB - ORD
1 stop11h 50mAmerican Airlines
ven. 11/75:10 pmORD - DUB
1 stop10h 50mAmerican Airlines
Deal found 9/12$452
This Mytrip deal was found by Cheapflights users on 9/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jeu. 10/3011:15 amDUB - ORD
2 stops35h 30mScandinavian Airlines
lun. 11/37:20 pmORD - DUB
2 stops33h 25mScandinavian Airlines
Deal found 9/12$453
This lastminute.com deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 10/1311:35 amDUB - ORD
Nonstop8h 25mAer Lingus
lun. 10/203:45 pmORD - DUB
Nonstop7h 25mAer Lingus
Deal found 9/13$454
This Lufthansa deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dim. 11/25:10 amDUB - ORD
1 stop20h 55mLufthansa
dim. 11/96:35 pmORD - DUB
Nonstop7h 35mLufthansa
Deal found 9/14$455
This American Airlines deal was found by Cheapflights users on 9/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 10/138:45 amDUB - ORD
1 stop14h 15mAmerican Airlines
mar. 10/2110:35 pmORD - DUB
1 stop12h 30mAmerican Airlines
Deal found 9/12$456
This Lufthansa deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dim. 11/25:10 amDUB - ORD
1 stop20h 55mMultiple Airlines
dim. 11/96:50 pmORD - DUB
1 stop16h 55mMultiple Airlines
Deal found 9/14$457
This Lufthansa deal was found by Cheapflights users on 9/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 10/135:55 amDUB - ORD
1 stop15h 00mLufthansa
mar. 10/218:20 pmORD - DUB
Nonstop7h 25mLufthansa
Deal found 9/12$458
This Lufthansa deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 10/135:55 amDUB - ORD
1 stop13h 00mLufthansa
lun. 10/208:20 pmORD - DUB
Nonstop7h 25mLufthansa
Deal found 9/13$459

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ireland to O'Hare Intl 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, Cheapflights users made 2,558,603 searches. Data last updated septembre 15, 2025.
Use the filters below to find and compare flights from Ireland to Chicago O'Hare Intl Airport that are best for you.

Fly from

Ireland

Fly to

O'Hare Intl

Route

Depart

Return

Price

DublinChicago

DUB - ORD

DUBORD

Dublin

mer. 10/29

11:30 am-6:45 pm

2 stops36h 15m

Chicago O'Hare Intl

dim. 11/2

7:20 pm-7:35 pm

2 stops18h 15m

$447

DublinChicago

DUB - ORD

DUBORD

Dublin

lun. 11/3

5:10 am-1:10 pm

1 stop14h 00m

Chicago O'Hare Intl

dim. 11/9

6:35 pm-8:10 am

Nonstop7h 35m

$455

DublinChicago

DUB - ORD

DUBORD

Dublin

lun. 10/27

5:55 am-3:20 pm

1 stop14h 25m

Chicago O'Hare Intl

sam. 11/8

5:20 pm-3:45 pm

1 stop16h 25m

$460

DublinChicago

DUB - ORD

DUBORD

Dublin

mer. 10/29

5:55 am-3:20 pm

1 stop14h 25m

Chicago O'Hare Intl

mar. 11/4

5:20 pm-3:45 pm

1 stop16h 25m

$460

DublinChicago

DUB - ORD

DUBORD

Dublin

dim. 10/26

5:55 am-3:20 pm

1 stop14h 25m

Chicago O'Hare Intl

dim. 11/16

5:20 pm-3:45 pm

1 stop16h 25m

$460

DublinChicago

DUB - ORD

DUBORD

Dublin

lun. 10/27

8:50 am-3:20 pm

1 stop11h 30m

Chicago O'Hare Intl

lun. 11/3

4:56 pm-3:45 pm

2 stops16h 49m

$460

DublinChicago

DUB - ORD

DUBORD

Dublin

mer. 11/12

8:50 am-8:50 pm

2 stops18h 00m

Chicago O'Hare Intl

dim. 11/16

8:40 pm-3:05 pm

1 stop12h 25m

$461

DublinChicago

DUB - ORD

DUBORD

Dublin

mar. 11/11

10:55 am-8:50 pm

2 stops15h 55m

Chicago O'Hare Intl

mer. 11/19

4:34 pm-2:25 pm

2 stops15h 51m

$461

DublinChicago

DUB - ORD

DUBORD

Dublin

lun. 11/3

11:30 am-5:44 pm

1 stop12h 14m

Chicago O'Hare Intl

dim. 11/9

8:40 pm-2:20 pm

1 stop11h 40m

$461

DublinChicago

DUB - ORD

DUBORD

Dublin

mar. 11/11

10:55 am-8:50 pm

2 stops15h 55m

Chicago O'Hare Intl

lun. 11/17

11:48 am-9:50 am

2 stops16h 02m

$461

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/13

Showing 1-10 of 35 results
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Best time to book a flight from Ireland to O'Hare Intl

Have a flexible travel schedule? Discover the best time to fly to O'Hare Intl from Ireland 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 Ireland to Chicago O'Hare Intl Airport

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

Currently, August is the cheapest month in which you can book a flight from Ireland to Chicago O'Hare Intl Airport (average of $245). Flying from Ireland to Chicago O'Hare Intl Airport in March is currently the most expensive (average of $321). 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 IE to ORD?

Find hourly flight availability from Ireland to O'Hare Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated septembre 15, 2025.

A simple way to save on the total cost of your ticket is to fly from Ireland to Chicago O'Hare Intl Airport in the afternoon. If you’re flexible enough to do this you can expect to save up to 12% on your trip compared to booking a flight at noon.

Weekly flight availability from Ireland to Chicago O'Hare Intl Airport

Explore weekly flight availability from Ireland to O'Hare Intl. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated septembre 15, 2025.

The most flights from IE0 to ORD are scheduled on a Saturday (20 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (15 on average).

Reviews of airlines servicing O'Hare Intl

Get insights into the airlines that provide service to O'Hare Intl. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to O'Hare Intl. Reviews last updated septembre 15, 2025.
See what other customers who have flown with United Airlines, Aer Lingus, and Lufthansa from Ireland to Chicago O'Hare Intl Airport have to say. 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
8,931 reviews

Entertainment

7.1

Food

6.6

Boarding

7.7

Comfort

7.3

Overall

7.4

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.
United Airlines
7.4
Good
8,931 reviews
United Airlines
7.4
Good
8,931 reviews

Entertainment

7.1

Food

6.6

Boarding

7.7

Comfort

7.3

Overall

7.4

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.
Aer Lingus
7.2
Good
1,271 reviews
United Airlines
7.4
Good
8,931 reviews

Entertainment

7.1

Food

6.6

Boarding

7.7

Comfort

7.3

Overall

7.4

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.
Lufthansa
6.8
Okay
7,409 reviews
United Airlines
7.4
Good
8,931 reviews

Entertainment

7.1

Food

6.6

Boarding

7.7

Comfort

7.3

Overall

7.4

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.

Related info for your journey

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

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

    Scandinavian Airlines, Lufthansa, and Delta can get you from Ireland to Chicago O'Hare Intl Airport in just under 14h. Your travel time can differ by up to 22h 15m. Ireland and Chicago O'Hare Intl Airport are separated by a distance of 3661 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from Ireland to Chicago O'Hare Intl Airport one-way?

    $420 is the cheapest one-way deal found within the past few days, from Aer Lingus. You may also be able to find cheap deals on Lufthansa and Brussels Airlines, with prices starting from $498 and $498, respectively.

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

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

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

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Ireland to Chicago O'Hare Intl Airport on time: Iberia (83%), American Airlines (75%), Aer Lingus (75%).

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

    The cheapest flight price from Ireland to Chicago O'Hare Intl Airport is $463. On average you can expect to pay $1,167. The most popular route, (Dublin - Chicago O'Hare Intl), can usually be booked for $378.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Ireland to O'Hare Intl 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 Ireland to Chicago O'Hare Intl Airport?

    Currently, August is the cheapest month in which you can book a flight from Ireland to Chicago O'Hare Intl Airport (average of $245). Flying from Ireland to Chicago O'Hare Intl Airport in March is currently the most expensive (average of $321). 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

Traveling to a place near Chicago O'Hare Intl Airport?

Book flights to Chicago O'Hare Intl Airport if you plan to visit one of these locations
Schaumburg
Rosemont
Skokie
Gurnee
Hoffman Estates
Des Plaines
Elgin
Arlington Heights
Orland Park
Beloit
Racine
Rockford
Oak Brook
Elk Grove Village
Downers Grove
Naperville
Evanston
Merrillville
Bridgeview
Warrenville

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Alternative routes for Ireland to O'Hare Intl

See prices for flight routes from nearby airports that may be better suited for you.
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Frederic Chopin to O'Hare Intl flights
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Frederic Chopin to Midway flights
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Heathrow to Midway flights
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Bergamo to O'Hare Intl flights
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Madrid to Midway flights
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Vilnius to O'Hare Intl flights
Oslo Gardermoen to O'Hare Intl flights
Otopeni Intl to O'Hare Intl flights

Top 3 airlines flying from Ireland to O'Hare Intl

Discover the top 3 airlines that operate flights from Ireland to O'Hare Intl. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated septembre 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest$393Average$514FlexibilityNo cancel feeOn-time76%
Aer LingusCheapest$447Average$581FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$473Average$752FlexibilityNo cancel feeOn-time69%

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