O'Hare Intl

$433+ 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 6/24. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — ORD
Apr 30 — May 71
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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 April 25, 2025.

Round-trip from

$518
(SmartFares)

One-way from

$433
(Kiwi.com)

Popular in

July

Cheapest in

November

Average price

$555

Good round-trip deal

$703 or less

Good one-way deal

$547 or less
From Ireland to Chicago O'Hare Intl
One-way flight from Ireland to Chicago O'Hare Intl
Highest demand for flights based on searches. 15% potential increase in price ($108 potential increase over avg. RT price).
Cheapest flight prices on average. 2% potential price decrease ($15 potential savings vs. average RT price).
Average for round-trip flights in April 2025
Price to beat on a round-trip flight from Ireland to Chicago O'Hare Intl.
Price to beat on a one-way flight from Ireland to Chicago O'Hare Intl.

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 April 25, 2025.

This Bravofly deal was found by Cheapflights users on 4/25. 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.
Fri 5/211:35 amDUB - ORD
Nonstop8h 25mAer Lingus
Sat 5/109:15 pmORD - DUB
Nonstop7h 25mAer Lingus
Deal found 4/25$516
This SmartFares deal was found by Cheapflights users on 4/25. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/2112:15 pmDUB - ORD
1 stop12h 00mIcelandair
Thu 5/297:25 pmORD - DUB
1 stop9h 40mIcelandair
Deal found 4/25$518
This FlightHub deal was found by Cheapflights users on 4/23. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/111:45 amDUB - ORD
2 stops34h 25mScandinavian Airlines
Wed 10/227:30 amORD - DUB
2 stops28h 45mScandinavian Airlines
Deal found 4/23$521
This British Airways deal was found by Cheapflights users on 4/24. 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.
Sat 5/38:35 amDUB - ORD
1 stop13h 20mBritish Airways
Mon 5/127:15 pmORD - DUB
1 stop10h 35mBritish Airways
Deal found 4/24$523
This Delta deal was found by Cheapflights users on 4/25. 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 5/38:55 amDUB - ORD
1 stop11h 15mDelta
Sat 5/243:30 pmORD - DUB
1 stop13h 15mDelta
Deal found 4/25$527
This Iberia deal was found by Cheapflights users on 4/24. 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.
Sun 6/151:45 pmDUB - ORD
Nonstop8h 00mMultiple Airlines
Thu 7/317:10 pmORD - DUB
1 stop13h 25mMultiple Airlines
Deal found 4/24$528
This United Airlines deal was found by Cheapflights users on 4/23. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/309:50 amDUB - ORD
1 stop12h 01mUnited Airlines
Wed 5/78:15 pmORD - DUB
Nonstop7h 30mUnited Airlines
Deal found 4/23$531
This Air Canada deal was found by Cheapflights users on 4/25. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/309:20 amDUB - ORD
2 stops14h 07mAir Canada
Wed 9/310:50 amORD - DUB
2 stops14h 55mAir Canada
Deal found 4/25$536
This Delta deal was found by Cheapflights users on 4/24. 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 5/16:00 amORK - ORD
1 stop14h 10mDelta
Mon 5/53:30 pmORD - ORK
2 stops17h 10mDelta
Deal found 4/24$539
This Finnair deal was found by Cheapflights users on 4/25. 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.
Tue 9/161:45 pmDUB - ORD
Nonstop8h 00mFinnair
Mon 9/2910:20 pmORD - DUB
Nonstop7h 20mFinnair
Deal found 4/25$542
This Iberia deal was found by Cheapflights users on 4/24. 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.
Sun 6/151:45 pmDUB - ORD
Nonstop8h 00mIberia
Thu 7/3110:25 pmORD - DUB
Nonstop7h 15mIberia
Deal found 4/24$545
This KLM deal was found by Cheapflights users on 4/25. 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.
Thu 5/225:10 pmORK - ORD
1 stop27h 00mKLM
Wed 5/284:20 pmORD - ORK
1 stop25h 10mKLM
Deal found 4/25$545

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 April 25, 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

Wed 5/21

12:15 pm-6:15 pm

1 stop12h 00m

Chicago O'Hare Intl

Thu 5/29

7:25 pm-11:05 am

1 stop9h 40m

$518

DublinChicago

DUB - ORD

DUBORD

Dublin

Wed 10/1

11:45 am-4:10 pm

2 stops34h 25m

Chicago O'Hare Intl

Wed 10/22

7:30 am-6:15 pm

2 stops28h 45m

$521

DublinChicago

DUB - ORD

DUBORD

Dublin

Sat 8/30

8:35 am-3:55 pm

1 stop13h 20m

Chicago O'Hare Intl

Tue 9/2

4:55 pm-9:50 am

1 stop10h 55m

$523

DublinChicago

DUB - ORD

DUBORD

Dublin

Fri 9/5

1:45 pm-3:45 pm

Nonstop8h 00m

Chicago O'Hare Intl

Mon 9/15

7:15 pm-2:40 pm

1 stop13h 25m

$524

DublinChicago

DUB - ORD

DUBORD

Dublin

Fri 5/9

8:55 am-2:10 pm

1 stop11h 15m

Chicago O'Hare Intl

Mon 5/12

7:25 pm-4:40 pm

2 stops15h 15m

$529

DublinChicago

DUB - ORD

DUBORD

Dublin

Sat 8/30

9:20 am-5:27 pm

2 stops14h 07m

Chicago O'Hare Intl

Wed 9/3

10:50 am-7:45 am

2 stops14h 55m

$536

DublinChicago

DUB - ORD

DUBORD

Dublin

Tue 9/16

1:45 pm-3:45 pm

Nonstop8h 00m

Chicago O'Hare Intl

Mon 9/29

10:20 pm-11:40 am

Nonstop7h 20m

$542

DublinChicago

DUB - ORD

DUBORD

Dublin

Sun 6/15

1:45 pm-3:45 pm

Nonstop8h 00m

Chicago O'Hare Intl

Thu 7/31

10:25 pm-11:40 am

Nonstop7h 15m

$545

CorkChicago

ORK - ORD

ORKORD

Cork

Thu 5/22

5:10 pm-2:10 pm

1 stop27h 00m

Chicago O'Hare Intl

Wed 5/28

4:20 pm-11:30 pm

1 stop25h 10m

$545

ShannonChicago

SNN - ORD

SNNORD

Shannon

Fri 9/5

1:05 pm-9:34 pm

1 stop14h 29m

Chicago O'Hare Intl

Mon 9/15

2:00 pm-11:10 am

1 stop15h 10m

$546

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/24

Showing 1-10 of 49 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 April 25, 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 April 25, 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 April 25, 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.
8.0
Very good

Overall

8.0

Boarding

8.2

Entertainment

7.9

Crew

8.5

Comfort

7.9

Food

7.3

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
8.0
Very good
8.0
Very good

Overall

8.0

Boarding

8.2

Entertainment

7.9

Crew

8.5

Comfort

7.9

Food

7.3

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
8.0
Very good

Overall

8.0

Boarding

8.2

Entertainment

7.9

Crew

8.5

Comfort

7.9

Food

7.3

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
8.0
Very good

Overall

8.0

Boarding

8.2

Entertainment

7.9

Crew

8.5

Comfort

7.9

Food

7.3

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
8.0
Very good

Overall

8.0

Boarding

8.2

Entertainment

7.9

Crew

8.5

Comfort

7.9

Food

7.3

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
8.0
Very good

Overall

8.0

Boarding

8.2

Entertainment

7.9

Crew

8.5

Comfort

7.9

Food

7.3

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?

    $434 is the cheapest one-way deal found within the past few days, from WestJet. You may also be able to find cheap deals on TAP AIR PORTUGAL and Aer Lingus, with prices starting from $448 and $453, respectively.

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

  • 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 (88%), American Airlines (82%), British Airways (82%).

  • 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 $452. On average you can expect to pay $1,528. The most popular route, (Dublin - Chicago O'Hare Intl), can usually be booked for $397.

  • 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 Ireland?

Book flights to Ireland if you plan to visit one of these locations
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Glenview

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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 April 25, 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$368Average$795FlexibilityNo cancel feeOn-time70%
Aer LingusCheapest$401Average$572FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$648Average$730FlexibilityNo cancel feeOn-time69%

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