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O'Hare Intl

$321+ 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 9/8. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — ORD
Aug 4 — Aug 111
Mon 8/4
Mon 8/11
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 July 30, 2025.

Round-trip from

$482
(Delta)

One-way from

$321
(Kiwi.com)

Popular in

July

Cheapest in

November

Average price

$750

Good round-trip deal

$740 or less

Good one-way deal

$641 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. 15% potential increase in price ($104 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($15 potential savings vs. average RT price).
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Average for round-trip flights in July 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 July 30, 2025.

This Delta deal was found by Cheapflights users on 7/29. 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.
Mon 9/16:00 amDUB - ORD
2 stops19h 09mDelta
Sun 9/711:05 amORD - DUB
1 stop16h 55mDelta
Deal found 7/29$482
This Air Canada deal was found by Cheapflights users on 7/29. 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.
Sun 9/149:20 amDUB - ORD
1 stop35h 40mAir Canada
Sat 9/276:20 pmORD - DUB
1 stop31h 55mAir Canada
Deal found 7/29$484
This Lufthansa deal was found by Cheapflights users on 7/29. 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.
Tue 9/1611:35 amDUB - ORD
Nonstop8h 00mLufthansa
Wed 10/18:20 pmORD - DUB
Nonstop7h 25mLufthansa
Deal found 7/29$486
This United Airlines deal was found by Cheapflights users on 7/29. 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.
Sun 8/319:30 amSNN - ORD
Nonstop8h 15mUnited Airlines
Sat 9/67:00 amORD - SNN
2 stops21h 15mUnited Airlines
Deal found 7/29$486
This Finnair deal was found by Cheapflights users on 7/28. 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 9/2910:15 pmORD - DUB
Nonstop7h 25mFinnair
Deal found 7/28$487
This American Airlines deal was found by Cheapflights users on 7/28. 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.
Mon 9/112:45 pmDUB - ORD
1 stop11h 30mAmerican Airlines
Mon 9/88:35 amORD - DUB
1 stop15h 55mAmerican Airlines
Deal found 7/28$488
This United Airlines deal was found by Cheapflights users on 7/28. 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.
Thu 9/411:35 amDUB - ORD
Nonstop8h 00mUnited Airlines
Fri 9/1211:40 amORD - DUB
1 stop13h 30mUnited Airlines
Deal found 7/28$490
This Scandinavian Airlines deal was found by Cheapflights users on 7/30. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/2911:30 amDUB - ORD
2 stops36h 15mScandinavian Airlines
Sun 11/27:20 pmORD - DUB
2 stops18h 15mScandinavian Airlines
Deal found 7/30$494
This TravelUp deal was found by Cheapflights users on 7/29. 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.
Sun 9/79:30 amDUB - ORD
1 stop15h 20mIberia
Sat 9/1310:15 pmORD - DUB
Nonstop7h 25mIberia
Deal found 7/29$498
This Finnair deal was found by Cheapflights users on 7/29. 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.
Mon 12/2212:55 pmDUB - ORD
1 stop14h 24mMultiple Airlines
Fri 1/21:15 pmORD - DUB
1 stop11h 55mMultiple Airlines
Deal found 7/29$499
This Gurufare deal was found by Cheapflights users on 7/29. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/1711:35 amDUB - ORD
Nonstop8h 00mBrussels Airlines
Tue 9/308:20 pmORD - DUB
Nonstop7h 25mBrussels Airlines
Deal found 7/29$523
This SmartFares deal was found by Cheapflights users on 7/30. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/282:15 pmDUB - ORD
1 stop13h 00mIcelandair
Tue 9/97:25 pmORD - DUB
1 stop9h 40mIcelandair
Deal found 7/30$524

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 July 30, 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 9/1

6:00 am-7:09 pm

2 stops19h 09m

Chicago O'Hare Intl

Sun 9/7

11:05 am-10:00 am

1 stop16h 55m

$482

DublinChicago

DUB - ORD

DUBORD

Dublin

Sun 9/14

9:20 am-3:00 pm

1 stop35h 40m

Chicago O'Hare Intl

Tue 9/30

2:00 pm-8:15 am

1 stop12h 15m

$484

DublinChicago

DUB - ORD

DUBORD

Dublin

Tue 9/16

11:35 am-1:35 pm

Nonstop8h 00m

Chicago O'Hare Intl

Sat 9/27

8:20 pm-9:45 am

Nonstop7h 25m

$486

ShannonChicago

SNN - ORD

SNNORD

Shannon

Sun 8/31

9:30 am-11:45 am

Nonstop8h 15m

Chicago O'Hare Intl

Sat 9/6

7:00 am-10:15 am

2 stops21h 15m

$486

DublinChicago

DUB - ORD

DUBORD

Dublin

Tue 9/16

1:45 pm-3:45 pm

Nonstop8h 00m

Chicago O'Hare Intl

Mon 9/29

10:15 pm-11:40 am

Nonstop7h 25m

$487

DublinChicago

DUB - ORD

DUBORD

Dublin

Mon 9/1

12:45 pm-1:50 pm

1 stop31h 05m

Chicago O'Hare Intl

Mon 9/8

10:15 pm-11:40 am

Nonstop7h 25m

$488

DublinChicago

DUB - ORD

DUBORD

Dublin

Thu 9/4

11:35 am-1:35 pm

Nonstop8h 00m

Chicago O'Hare Intl

Fri 9/12

11:40 am-7:10 am

1 stop13h 30m

$490

DublinChicago

DUB - ORD

DUBORD

Dublin

Wed 10/29

11:30 am-6:45 pm

2 stops36h 15m

Chicago O'Hare Intl

Sun 11/2

7:20 pm-7:35 pm

2 stops18h 15m

$494

DublinChicago

DUB - ORD

DUBORD

Dublin

Sun 9/7

9:30 am-6:50 pm

1 stop15h 20m

Chicago O'Hare Intl

Sat 9/13

10:15 pm-11:40 am

Nonstop7h 25m

$498

DublinChicago

DUB - ORD

DUBORD

Dublin

Mon 12/22

12:55 pm-9:19 pm

1 stop14h 24m

Chicago O'Hare Intl

Fri 1/2

1:15 pm-7:10 am

1 stop11h 55m

$499

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/30

Showing 1-10 of 41 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 July 30, 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 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 July 30, 2025.

The most flights from IE0 to ORD are scheduled on a Monday (18 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (17 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 July 30, 2025.
See what other customers who have flown with Delta, Alaska Airlines, and KLM 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.
Delta
8.0
Very good
7,980 reviews

Crew

8.5

Boarding

8.2

Comfort

7.9

Overall

8.0

Entertainment

7.9

Food

7.3

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
Delta
8.0
Very good
7,980 reviews
Delta
8.0
Very good
7,980 reviews

Crew

8.5

Boarding

8.2

Comfort

7.9

Overall

8.0

Entertainment

7.9

Food

7.3

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
Alaska Airlines
8.0
Very good
10,000 reviews
Delta
8.0
Very good
7,980 reviews

Crew

8.5

Boarding

8.2

Comfort

7.9

Overall

8.0

Entertainment

7.9

Food

7.3

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
KLM
7.8
Good
1,383 reviews
Delta
8.0
Very good
7,980 reviews

Crew

8.5

Boarding

8.2

Comfort

7.9

Overall

8.0

Entertainment

7.9

Food

7.3

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
Finnair
7.6
Good
1,316 reviews
Delta
8.0
Very good
7,980 reviews

Crew

8.5

Boarding

8.2

Comfort

7.9

Overall

8.0

Entertainment

7.9

Food

7.3

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
United Airlines
7.4
Good
8,896 reviews
Delta
8.0
Very good
7,980 reviews

Crew

8.5

Boarding

8.2

Comfort

7.9

Overall

8.0

Entertainment

7.9

Food

7.3

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.

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?

    $444 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 Icelandair and TAP AIR PORTUGAL, with prices starting from $567 and $570, 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 (56%), American Airlines (56%), British Airways (56%).

  • 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 $507. On average you can expect to pay $1,515. The most popular route, (Dublin - Chicago O'Hare Intl), can usually be booked for $381.

  • 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
Beloit
Hoffman Estates
Skokie
Naperville
Des Plaines
Elgin
Arlington Heights
Elk Grove Village
Racine
Rockford
Tinley Park
Orland Park
Merrillville
Downers Grove
Evanston
Lake Geneva
Gurnee
Joliet

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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
Charles de Gaulle to O'Hare Intl flights
Frederic Chopin to O'Hare Intl flights
Frederic Chopin to Midway flights
Madrid to O'Hare Intl flights
Orly to O'Hare Intl flights
Krakow to O'Hare Intl flights
Barcelona-El Prat to O'Hare Intl flights
Istanbul to O'Hare Intl flights
Charles de Gaulle to Midway flights
Gatwick to O'Hare Intl flights
Munich to O'Hare Intl flights
London City to O'Hare Intl flights
Leonardo da Vinci/Fiumicino to O'Hare Intl flights
Malpensa to O'Hare Intl flights
Athens to O'Hare Intl flights
Vienna to O'Hare Intl flights
Zurich to O'Hare Intl flights
Bruxelles-National to O'Hare Intl flights
Heathrow to Midway flights
Dublin to O'Hare Intl flights
Amsterdam to O'Hare Intl flights
Frankfurt-Hahn to O'Hare Intl flights
Madrid to Midway flights
Modlin to O'Hare Intl flights
Beauvais-Tille to O'Hare Intl flights
Barcelona-El Prat to Midway flights
Duesseldorf Intl to O'Hare Intl flights
Stansted to O'Hare Intl flights
Vilnius to O'Hare Intl flights
Linate to O'Hare Intl flights
Bergamo to O'Hare Intl flights
Luton to O'Hare Intl flights
Duesseldorf Intl to Midway flights
Istanbul to Midway flights
Vicenza to O'Hare Intl flights
Sofia to O'Hare Intl flights
Berlin to O'Hare Intl flights
Shannon to O'Hare Intl flights
Sabiha Gokcen to O'Hare Intl flights
Bruxelles-National to Midway flights
Rzeszow to O'Hare Intl flights
Manchester to O'Hare Intl flights
Copenhagen to O'Hare Intl flights
Amsterdam to Midway flights

Top 2 airlines flying from Ireland to O'Hare Intl

Discover the top 2 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 July 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
Aer LingusCheapest$447Average$582FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$667Average$757FlexibilityNo cancel feeOn-time69%

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