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O'Hare Intl

$438+ 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 12/3. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — ORD
Dec 5 — Dec 121
Fri 12/5
Fri 12/12
1 adult, Economy
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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 November 5, 2025.

This American Airlines deal was found by Cheapflights users on 11/5. 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.
Thu 11/1311:30 amDUB - ORD
1 stop17h 25mAmerican Airlines
Sun 11/166:30 pmORD - DUB
1 stop16h 20mAmerican Airlines
Deal found 11/5$464
This American Airlines deal was found by Cheapflights users on 11/4. 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.
Fri 11/1411:30 amDUB - ORD
1 stop15h 01mAmerican Airlines
Sun 11/236:25 pmORD - DUB
1 stop11h 50mAmerican Airlines
Deal found 11/4$465
This Delta deal was found by Cheapflights users on 11/4. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/155:55 amDUB - ORD
1 stop14h 25mDelta
Mon 11/247:00 amORD - DUB
2 stops18h 50mDelta
Deal found 11/4$467
This KLM deal was found by Cheapflights users on 11/5. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/235:55 amDUB - ORD
1 stop14h 25mKLM
Sat 11/297:00 amORD - DUB
1 stop19h 45mKLM
Deal found 11/5$469
This Delta deal was found by Cheapflights users on 11/4. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/228:50 amDUB - ORD
1 stop11h 30mDelta
Sat 11/298:50 amORD - DUB
1 stop16h 55mDelta
Deal found 11/4$470
This Delta deal was found by Cheapflights users on 11/5. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/38:50 amDUB - ORD
1 stop11h 30mDelta
Wed 12/106:45 amORD - DUB
2 stops19h 20mDelta
Deal found 11/5$471
This KLM deal was found by Cheapflights users on 11/5. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/185:15 pmDUB - ORD
1 stop27h 05mMultiple Airlines
Tue 11/2510:35 amORD - DUB
1 stop16h 45mMultiple Airlines
Deal found 11/5$474
This American Airlines deal was found by Cheapflights users on 11/5. 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.
Thu 11/1310:30 amDUB - ORD
1 stop12h 30mAmerican Airlines
Wed 11/196:50 amORD - DUB
1 stop19h 50mAmerican Airlines
Deal found 11/5$475
This Delta deal was found by Cheapflights users on 11/5. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/135:55 amDUB - ORD
2 stops20h 34mDelta
Wed 11/196:45 amORD - DUB
2 stops19h 20mDelta
Deal found 11/5$480
This British Airways deal was found by Cheapflights users on 11/5. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/238:05 pmSNN - ORD
1 stop25h 20mBritish Airways
Sun 11/306:25 pmORD - SNN
1 stop19h 00mBritish Airways
Deal found 11/5$567
This KLM deal was found by Cheapflights users on 11/5. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/2211:15 amORK - ORD
1 stop33h 05mKLM
Sat 11/295:20 pmORD - ORK
1 stop15h 40mKLM
Deal found 11/5$595
This American Airlines deal was found by Cheapflights users on 11/5. 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.
Sun 11/237:50 amSNN - ORD
1 stop15h 10mAmerican Airlines
Sun 11/308:40 pmORD - SNN
1 stop14h 05mAmerican Airlines
Deal found 11/5$614

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 November 5, 2025.

Round-trip from

$455
(Flighttix)

One-way from

$438
(Gurufare)

Popular in

July

Cheapest in

September

Average price

$511

Good round-trip deal

$600 or less

Good one-way deal

$504 or less
From Ireland to Chicago O'Hare Intl
Search Deals
One-way flight from Ireland to Chicago O'Hare Intl
Search Deals
Highest demand for flights based on searches. 15% potential increase in price ($103 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($11 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
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Price to beat on a round-trip flight from Ireland to Chicago O'Hare Intl.
Search Deals
Price to beat on a one-way flight from Ireland to Chicago O'Hare Intl.
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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 November 5, 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

Mon 2/9

8:50 am-6:45 pm

1 stop15h 55m

Chicago O'Hare Intl

Sun 2/15

6:45 pm-7:40 pm

1 stop18h 55m

$460

DublinChicago

DUB - ORD

DUBORD

Dublin

Thu 2/5

8:50 am-3:25 pm

1 stop12h 35m

Chicago O'Hare Intl

Fri 2/13

3:28 pm-3:05 pm

2 stops17h 37m

$460

DublinChicago

DUB - ORD

DUBORD

Dublin

Sat 2/7

4:05 pm-1:50 pm

1 stop27h 45m

Chicago O'Hare Intl

Sun 2/15

4:25 pm-2:20 pm

2 stops15h 55m

$460

DublinChicago

DUB - ORD

DUBORD

Dublin

Thu 2/5

8:50 am-11:27 pm

2 stops20h 37m

Chicago O'Hare Intl

Sun 2/15

4:25 pm-2:20 pm

2 stops15h 55m

$465

DublinChicago

DUB - ORD

DUBORD

Dublin

Fri 3/27

11:30 am-8:07 pm

1 stop13h 37m

Chicago O'Hare Intl

Tue 3/31

9:15 pm-2:45 pm

1 stop11h 30m

$466

DublinChicago

DUB - ORD

DUBORD

Dublin

Thu 2/12

11:30 am-4:45 pm

2 stops35h 15m

Chicago O'Hare Intl

Thu 2/26

7:20 pm-6:10 pm

2 stops16h 50m

$467

DublinChicago

DUB - ORD

DUBORD

Dublin

Mon 12/8

5:55 am-2:20 pm

1 stop14h 25m

Chicago O'Hare Intl

Tue 12/16

8:50 am-7:45 am

1 stop16h 55m

$469

DublinChicago

DUB - ORD

DUBORD

Dublin

Sat 2/7

5:55 am-2:20 pm

1 stop14h 25m

Chicago O'Hare Intl

Sat 2/14

12:32 pm-12:40 pm

2 stops18h 08m

$470

DublinChicago

DUB - ORD

DUBORD

Dublin

Sat 2/7

10:55 am-11:44 pm

2 stops18h 49m

Chicago O'Hare Intl

Fri 2/13

8:45 pm-5:00 pm

1 stop14h 15m

$470

DublinChicago

DUB - ORD

DUBORD

Dublin

Sun 11/23

5:55 am-2:20 pm

1 stop14h 25m

Chicago O'Hare Intl

Sat 11/29

6:45 am-8:05 am

2 stops19h 20m

$471

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/4

Showing 1-10 of 30 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, February is the cheapest month in which you can book a flight from Ireland to Chicago O'Hare Intl Airport (average of $392). Flying from Ireland to Chicago O'Hare Intl Airport in July is currently the most expensive (average of $623). 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 November 5, 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 evening. If you’re flexible enough to do this you can expect to save up to 17% 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 November 5, 2025.

The most flights from IE0 to ORD are scheduled on a Monday (16 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (9 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 November 5, 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
9,004 reviews

Entertainment

7.1

Comfort

7.3

Boarding

7.7

Food

6.6

Overall

7.4

Crew

8.1

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
9,004 reviews
United Airlines
7.4
Good
9,004 reviews

Entertainment

7.1

Comfort

7.3

Boarding

7.7

Food

6.6

Overall

7.4

Crew

8.1

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
1,365 reviews
United Airlines
7.4
Good
9,004 reviews

Entertainment

7.1

Comfort

7.3

Boarding

7.7

Food

6.6

Overall

7.4

Crew

8.1

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
Lufthansa
6.8
Okay
7,555 reviews
United Airlines
7.4
Good
9,004 reviews

Entertainment

7.1

Comfort

7.3

Boarding

7.7

Food

6.6

Overall

7.4

Crew

8.1

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

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?

    British Airways, KLM, and American Airlines can get you from Ireland to Chicago O'Hare Intl Airport in just under 15h 10m. Your travel time can differ by up to 17h 55m. Ireland and Chicago O'Hare Intl Airport are separated by a distance of 3578 mi. This flight may include one or multiple stops.

  • 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: Air Canada (86%), Austrian Airlines (75%), Brussels Airlines (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 $461. On average you can expect to pay $1,148. The most popular route, (Dublin - Chicago O'Hare Intl), can usually be booked for $414.

  • 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, February is the cheapest month in which you can book a flight from Ireland to Chicago O'Hare Intl Airport (average of $392). Flying from Ireland to Chicago O'Hare Intl Airport in July is currently the most expensive (average of $623). 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
Des Plaines
Gurnee
Hoffman Estates
Beloit
Delavan
Elgin
Oak Brook
Elk Grove Village
Downers Grove
Rockford
Naperville
Orland Park
Bridgeview
Warrenville
Waukegan
Aurora
Racine

Browse thousands of different options on Cheapflights for your next trip

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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.
Frankfurt to O'Hare Intl flights
Heathrow to O'Hare Intl flights
Frederic Chopin to O'Hare Intl flights
Charles de Gaulle to O'Hare Intl flights
Madrid to O'Hare Intl flights
Frederic Chopin to Midway flights
Zurich to O'Hare Intl flights
Vienna to O'Hare Intl flights
Munich to O'Hare Intl flights
Orly to O'Hare Intl flights
Gatwick to O'Hare Intl flights
Heathrow to Midway flights
Charles de Gaulle to Midway flights
London City to O'Hare Intl flights
Bruxelles-National to O'Hare Intl flights
Krakow to O'Hare Intl flights
Athens to O'Hare Intl flights
Frankfurt-Hahn to O'Hare Intl flights
Stansted to O'Hare Intl flights
Luton to O'Hare Intl flights
Leonardo da Vinci/Fiumicino to O'Hare Intl flights
Barcelona-El Prat to O'Hare Intl flights
Amsterdam to O'Hare Intl flights
Madrid to Midway flights
Beauvais-Tille to O'Hare Intl flights
Istanbul to O'Hare Intl flights
Malpensa to O'Hare Intl flights
Modlin to O'Hare Intl flights
Dublin to O'Hare Intl flights
Berlin to O'Hare Intl flights
Barcelona-El Prat to Midway flights
Bruxelles-National to Midway flights
Leonardo da Vinci/Fiumicino to Midway flights
Linate to O'Hare Intl flights
Basel to O'Hare Intl flights
Skopje to O'Hare Intl flights
Lisbon to O'Hare Intl flights
Ciampino to O'Hare Intl flights
Munich to Midway flights
Duesseldorf Intl to O'Hare Intl flights
Prague to O'Hare Intl flights
Vilnius to O'Hare Intl flights
Vicenza 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 November 5, 2025.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest$393Average$517FlexibilityNo cancel feeOn-time76%
Aer LingusCheapest$453Average$633FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$479Average$696FlexibilityNo cancel feeOn-time69%

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