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O'Hare Intl

$280+ 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 5/3. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — ORD
Apr 5 — Apr 121
Sa 4/5
Sa 4/12
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 März 31, 2025.

Round-trip from

$507
(Finnair)

One-way from

$280
(Kiwi.com)

Popular in

July

Cheapest in

November

Average price

$545

Good round-trip deal

$694 or less

Good one-way deal

$540 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. 16% potential increase in price ($113 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($16 potential savings vs. average RT price).
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Average for round-trip flights in March 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 März 31, 2025.

This Finnair deal was found by Cheapflights users on 3/31. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mi 9/101:45 pmDUB - ORD
Nonstop8h 00mFinnair
Mi 10/110:20 pmORD - DUB
Nonstop7h 20mFinnair
Deal found 3/31$507
This Finnair deal was found by Cheapflights users on 3/31. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mi 9/108:30 amDUB - ORD
1 stop12h 20mMultiple Airlines
Mi 10/110:20 pmORD - DUB
Nonstop7h 20mMultiple Airlines
Deal found 3/31$508
This Expedia deal was found by Cheapflights users on 3/31. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Di 4/84:40 pmDUB - ORD
Nonstop8h 20mAer Lingus
Do 4/179:15 pmORD - DUB
Nonstop7h 25mAer Lingus
Deal found 3/31$509
This Delta deal was found by Cheapflights users on 3/31. 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.
Mo 4/75:55 amDUB - ORD
1 stop14h 15mDelta
Mo 4/146:15 pmORD - DUB
2 stops14h 45mDelta
Deal found 3/31$510
This KLM deal was found by Cheapflights users on 3/30. 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.
Mo 4/145:20 pmDUB - ORD
1 stop27h 20mKLM
So 4/2011:15 amORD - DUB
1 stop15h 30mKLM
Deal found 3/30$511
This Bravofly deal was found by Cheapflights users on 3/30. 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 Bravofly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Do 8/287:05 pmDUB - ORD
1 stop27h 05mScandinavian Airlines
Mi 9/310:10 amORD - DUB
2 stops26h 05mScandinavian Airlines
Deal found 3/30$517
This American Airlines deal was found by Cheapflights users on 3/31. 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.
Mo 4/79:30 amDUB - ORD
1 stop14h 06mAmerican Airlines
Di 4/152:55 pmORD - DUB
1 stop9h 35mAmerican Airlines
Deal found 3/31$525
This KLM deal was found by Cheapflights users on 3/30. 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.
Mo 4/216:00 amORK - ORD
1 stop14h 10mKLM
Mo 4/284:20 pmORD - ORK
1 stop25h 10mKLM
Deal found 3/30$526
This Icelandair deal was found by Cheapflights users on 3/30. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mi 5/2812:15 pmDUB - ORD
1 stop12h 00mIcelandair
Di 6/37:25 pmORD - DUB
1 stop9h 40mIcelandair
Deal found 3/30$533
This British Airways deal was found by Cheapflights users on 3/30. 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.
Di 5/2710:30 amDUB - ORD
1 stop13h 45mBritish Airways
Mo 6/211:45 amORD - DUB
2 stops15h 55mBritish Airways
Deal found 3/30$537
This KLM deal was found by Cheapflights users on 3/30. 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.
Sa 5/241:05 pmSNN - ORD
2 stops31h 42mKLM
Sa 5/313:59 pmORD - SNN
1 stop13h 11mKLM
Deal found 3/30$539
This Iberia deal was found by Cheapflights users on 3/30. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sa 9/201:45 pmDUB - ORD
Nonstop8h 00mIberia
Sa 10/410:20 pmORD - DUB
Nonstop7h 20mIberia
Deal found 3/30$550

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 März 31, 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

Mi 9/10

1:45 pm-3:45 pm

Nonstop8h 00m

Chicago O'Hare Intl

Mi 10/1

10:20 pm-11:40 am

Nonstop7h 20m

$507

DublinChicago

DUB - ORD

DUBORD

Dublin

Mi 9/10

8:30 am-2:50 pm

1 stop12h 20m

Chicago O'Hare Intl

Mi 10/1

10:20 pm-11:40 am

Nonstop7h 20m

$508

DublinChicago

DUB - ORD

DUBORD

Dublin

Mi 4/30

5:55 am-2:40 pm

1 stop14h 45m

Chicago O'Hare Intl

Di 5/6

6:15 pm-3:00 pm

2 stops14h 45m

$510

DublinChicago

DUB - ORD

DUBORD

Dublin

Mo 4/14

5:20 pm-2:40 pm

1 stop27h 20m

Chicago O'Hare Intl

So 4/20

11:15 am-8:45 am

1 stop15h 30m

$511

DublinChicago

DUB - ORD

DUBORD

Dublin

Do 4/10

11:35 am-2:00 pm

Nonstop8h 25m

Chicago O'Hare Intl

Mi 4/16

3:45 pm-5:10 am

Nonstop7h 25m

$514

DublinChicago

DUB - ORD

DUBORD

Dublin

Do 8/28

7:05 pm-4:10 pm

1 stop27h 05m

Chicago O'Hare Intl

Mi 9/3

10:10 am-6:15 pm

2 stops26h 05m

$517

DublinChicago

DUB - ORD

DUBORD

Dublin

Do 4/10

9:30 am-3:03 pm

1 stop11h 33m

Chicago O'Hare Intl

Mi 4/16

10:28 am-5:30 am

1 stop13h 02m

$525

CorkChicago

ORK - ORD

ORKORD

Cork

Mo 4/21

6:00 am-2:10 pm

1 stop14h 10m

Chicago O'Hare Intl

Mo 4/28

4:20 pm-11:30 pm

1 stop25h 10m

$526

DublinChicago

DUB - ORD

DUBORD

Dublin

Mi 5/28

12:15 pm-6:15 pm

1 stop12h 00m

Chicago O'Hare Intl

Di 6/3

7:25 pm-11:05 am

1 stop9h 40m

$533

DublinChicago

DUB - ORD

DUBORD

Dublin

Di 5/27

10:30 am-6:15 pm

1 stop13h 45m

Chicago O'Hare Intl

Mo 6/2

11:45 am-9:40 am

2 stops15h 55m

$537

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/30

Showing 1-10 of 55 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 $323). 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 März 31, 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 morning. If you’re flexible enough to do this you can expect to save up to 6% 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 März 31, 2025.

The most flights from IE0 to ORD are scheduled on a Thursday (12 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (11 on average).

Rainfall in O'Hare Intl by month

Plan your trip to O'Hare Intl by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Chicago O'Hare Intl Airport ranges from 1.7 - 4.9 inches per month. August is typically the wettest month, when rainfall can reach 4.9 in. January is typically the driest time to visit Chicago O'Hare Intl Airport when rainfall is around 1.7 in.

Temperature in O'Hare Intl by month

Plan your trip to O'Hare Intl by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Chicago O'Hare Intl Airport, 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 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 23.0 F).

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 März 31, 2025.
Read reviews from past customers who have flown Delta, KLM and Finnair from Ireland to Chicago. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,899 reviews

Boarding

8.2

Crew

8.5

Comfort

8.0

Food

7.3

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Delta
8.0
Very good
7,899 reviews
Delta
8.0
Very good
7,899 reviews

Boarding

8.2

Crew

8.5

Comfort

8.0

Food

7.3

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
KLM
7.8
Good
1,321 reviews
Delta
8.0
Very good
7,899 reviews

Boarding

8.2

Crew

8.5

Comfort

8.0

Food

7.3

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Finnair
7.6
Good
1,267 reviews
Delta
8.0
Very good
7,899 reviews

Boarding

8.2

Crew

8.5

Comfort

8.0

Food

7.3

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Air France
7.4
Good
1,425 reviews
Delta
8.0
Very good
7,899 reviews

Boarding

8.2

Crew

8.5

Comfort

8.0

Food

7.3

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
United Airlines
7.4
Good
8,614 reviews
Delta
8.0
Very good
7,899 reviews

Boarding

8.2

Crew

8.5

Comfort

8.0

Food

7.3

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

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.

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

    $280 is the cheapest one-way deal found within the past few days, from WestJet. You may also be able to find cheap deals on Icelandair and Scandinavian Airlines, with prices starting from $336 and $403, 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: Aer Lingus (94%), American Airlines (91%), British Airways (91%).

  • 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 $434. On average you can expect to pay $1,526. The most popular route, (Dublin - Chicago O'Hare Intl), can usually be booked for $364.

  • 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 $323). 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 Ireland?

Book flights to Ireland if you plan to visit one of these locations
Schaumburg
Rosemont
Beloit
Racine
Hoffman Estates
Naperville
Rockford
Tinley Park
Skokie
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Arlington Heights
Joliet
Orland Park
Merrillville
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Waukegan
Elgin
Glenview

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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.
Charles de Gaulle to O'Hare Intl flights
Heathrow to O'Hare Intl flights
Frederic Chopin to O'Hare Intl flights
Madrid to O'Hare Intl flights
Frankfurt to O'Hare Intl flights
Frederic Chopin to Midway flights
Orly to O'Hare Intl flights
Istanbul to O'Hare Intl flights
Malpensa to O'Hare Intl flights
Barcelona-El Prat to O'Hare Intl flights
Gatwick to O'Hare Intl flights
London City to O'Hare Intl flights
Heathrow to Midway flights
Zurich to O'Hare Intl flights
Charles de Gaulle to Midway flights
Dublin to O'Hare Intl flights
Vienna to O'Hare Intl flights
Krakow to O'Hare Intl flights
Athens to O'Hare Intl flights
Munich to O'Hare Intl flights
Bruxelles-National to O'Hare Intl flights
Amsterdam to O'Hare Intl flights
Beauvais-Tille to O'Hare Intl flights
Leonardo da Vinci/Fiumicino to O'Hare Intl flights
Linate to O'Hare Intl flights
Duesseldorf Intl to O'Hare Intl flights
Barcelona-El Prat to Midway flights
Stansted to O'Hare Intl flights
Madrid to Midway flights
Istanbul to Midway flights
Lisbon to O'Hare Intl flights
Modlin to O'Hare Intl flights
Duesseldorf Intl to Midway flights
Copenhagen to O'Hare Intl flights
Bergamo to O'Hare Intl flights
Belgrade to O'Hare Intl flights
Sabiha Gokcen to O'Hare Intl flights
Vicenza to O'Hare Intl flights
Manchester to O'Hare Intl flights
Berlin to O'Hare Intl flights
Bruxelles-National to Midway flights
Luton to O'Hare Intl flights
Otopeni Intl to O'Hare Intl flights
Amsterdam to Midway 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 März 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$368Average$795FlexibilityNo cancel feeOn-time70%
Aer LingusCheapest$401Average$570FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$648Average$745FlexibilityNo cancel feeOn-time69%
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