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$211+ Cheap flights from O'Hare Intl (ORD) to Dublin (DUB)

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 10/23. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — DUB
oct. 17 — oct. 241
vie. 10/17
vie. 10/24
1 adult, Economy
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Cheapflights Tip: The best prices from Chicago O'Hare Intl to Dublin are usually found in January or February, booked 33 days in advance, depart on a Tuesday or Monday and return on a Wednesday

Cheap flight deals from O'Hare Intl to Dublin

Discover tips and strategies to find the most affordable flight options for your journey from O'Hare Intl (ORD) to Dublin (DUB). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated septiembre 17, 2025.

Round-trip from

$484
(Ovago)

One-way from

$211
(oojo)

Popular in

June

Cheapest in

January

Average price

$714

Good round-trip deal

$594 or less

Good one-way deal

$504 or less
From Chicago O'Hare Intl to Dublin
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One-way flight from Chicago O'Hare Intl to Dublin
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Highest demand for flights based on searches. 16% potential increase in price ($137 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($20 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 Chicago O'Hare Intl to Dublin.
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Price to beat on a one-way flight from Chicago O'Hare Intl to Dublin.
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Find flight deals from O'Hare Intl to Dublin

Cheapest flights from O'Hare Intl to Dublin
Explore the most affordable flight options available from O'Hare Intl to Dublin. Find the lowest fares from popular airlines and budget airlines, with prices last updated on septiembre 17, 2025.

This Ovago deal was found by Cheapflights users on 9/15. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 11/59:50 pmORD - DUB
1 stop13h 20mLufthansa
jue. 11/1310:40 amDUB - ORD
Nonstop8h 50mLufthansa
Deal found 9/15$484
This United Airlines deal was found by Cheapflights users on 9/15. 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.
mar. 10/78:20 pmORD - DUB
Nonstop7h 25mUnited Airlines
mié. 10/159:20 amDUB - ORD
1 stop16h 44mUnited Airlines
Deal found 9/15$485
This Air Canada deal was found by Cheapflights users on 9/15. 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.
mar. 10/78:51 amORD - DUB
1 stop16h 54mAir Canada
mié. 10/159:20 amDUB - ORD
1 stop35h 40mAir Canada
Deal found 9/15$486
This SmartFares deal was found by Cheapflights users on 9/15. 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.
jue. 10/308:50 pmORD - DUB
1 stop16h 30mScandinavian Airlines
jue. 11/67:05 pmDUB - ORD
1 stop27h 40mScandinavian Airlines
Deal found 9/15$488
This Scandinavian Airlines deal was found by Cheapflights users on 9/15. 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.
lun. 11/37:20 pmORD - DUB
2 stops33h 25mScandinavian Airlines
dom. 11/1610:10 amDUB - ORD
1 stop12h 35mScandinavian Airlines
Deal found 9/15$489
This United Airlines deal was found by Cheapflights users on 9/15. 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.
mié. 10/812:55 pmORD - DUB
1 stop15h 25mUnited Airlines
mié. 10/159:20 amDUB - ORD
1 stop16h 44mUnited Airlines
Deal found 9/15$490
This Icelandair 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 12/136:30 pmORD - DUB
1 stop9h 45mIcelandair
jue. 1/811:30 amDUB - ORD
1 stop11h 50mIcelandair
Deal found 9/14$491
This United Airlines deal was found by Cheapflights users on 9/16. 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.
mar. 10/78:20 pmORD - DUB
Nonstop7h 25mUnited Airlines
mar. 10/219:50 amDUB - ORD
1 stop29h 19mUnited Airlines
Deal found 9/16$492
This United Airlines deal was found by Cheapflights users on 9/15. 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.
vie. 11/72:30 pmORD - DUB
1 stop11h 00mUnited Airlines
mié. 11/129:00 amDUB - ORD
1 stop12h 10mUnited Airlines
Deal found 9/15$493
This Scandinavian Airlines deal was found by Cheapflights users on 9/17. 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.
jue. 10/308:50 pmORD - DUB
1 stop16h 30mScandinavian Airlines
mar. 11/1812:30 pmDUB - ORD
1 stop34h 15mScandinavian Airlines
Deal found 9/17$494
This United Airlines deal was found by Cheapflights users on 9/15. 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.
dom. 10/128:50 amORD - DUB
1 stop16h 20mUnited Airlines
mar. 10/219:50 amDUB - ORD
1 stop15h 34mUnited Airlines
Deal found 9/15$495
This Air Canada deal was found by Cheapflights users on 9/17. 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.
sáb. 12/278:15 pmORD - DUB
1 stop28h 55mAir Canada
mié. 1/79:00 amDUB - ORD
1 stop12h 10mAir Canada
Deal found 9/17$496

Cheapflights Fare Finder

 
Customize your flight search to find flights from O'Hare Intl to Dublin 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 septiembre 17, 2025.
Use the filters below to find and compare flights from Chicago O'Hare Intl Airport to Dublin that are best for you.

Fly from

O'Hare Intl

Fly to

Dublin

Route

Depart

Return

Price

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

mar. 11/11

9:10 pm-10:20 am

1 stop31h 10m

Dublin

dom. 11/16

9:00 am-9:13 am

1 stop30h 13m

$486

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

lun. 11/17

6:35 pm-8:10 am

Nonstop7h 35m

Dublin

vie. 11/28

10:40 am-1:30 pm

Nonstop8h 50m

$493

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

mar. 11/11

6:35 pm-8:10 am

Nonstop7h 35m

Dublin

vie. 11/28

10:40 am-1:30 pm

Nonstop8h 50m

$493

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

sáb. 11/1

8:20 pm-11:45 am

1 stop34h 25m

Dublin

vie. 11/14

12:30 pm-4:45 pm

1 stop34h 15m

$494

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

mié. 10/15

8:20 pm-9:45 am

Nonstop7h 25m

Dublin

mié. 10/22

11:35 am-1:35 pm

Nonstop8h 00m

$497

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

mar. 1/20

6:35 pm-8:10 am

Nonstop7h 35m

Dublin

sáb. 2/14

10:40 am-1:30 pm

Nonstop8h 50m

$498

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

jue. 11/6

2:00 pm-7:10 am

1 stop11h 10m

Dublin

jue. 11/13

10:40 am-1:30 pm

Nonstop8h 50m

$504

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

mar. 10/28

7:35 pm-8:10 am

Nonstop7h 35m

Dublin

lun. 11/17

10:40 am-1:30 pm

Nonstop8h 50m

$508

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

mié. 10/22

8:20 pm-9:45 am

Nonstop7h 25m

Dublin

sáb. 11/1

10:40 am-2:30 pm

Nonstop8h 50m

$508

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

mié. 10/8

11:02 am-7:55 am

1 stop14h 53m

Dublin

mié. 10/15

12:00 pm-6:10 pm

1 stop12h 10m

$512

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/17

Showing 1-10 of 23 results
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The best insider tips for Chicago O'Hare Intl Airport to Dublin flights

Snippets provided in this section are AI-generated based on a summarization of Cheapflights-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
Cheapflights partnered with top experts to bring you the best recommendations for your Chicago O'Hare Intl Airport to Dublin trip
Airports
ORD

Prepare for long walks between terminals at ORD. Know your airline's terminal to avoid unnecessary delays.

Read more about ORDby Ramsey Qubein
DUB

For a quick ride into Dublin, take the non-stop Aircoach or Dublin Express buses from DUB, departing every 15-30 minutes.

Read more about DUBby James March
Our travel experts
Ramsey Qubein

Ramsey Qubein

Expert on ORD

Ramsey Qubein

Ramsey Qubein

An avid traveler and aviation expert who has visited 173 countries, all 50 states and seven continents, Ramsey Qubein flies nearly 400,000 miles a year. As a North Carolina-based freelance journalist for publications including Conde Nast Traveler, Forbes, USA Today and Bloomberg among others, he explores the latest trends in aviation, hospitality, cruises and business.

Read more
James March

James March

Expert on DUB

James March

James March

For UK-based James March, nothing beats the thrill and chaos of arriving in a new city for the first time, and he tries to put that feeling into his writing and inspire others to travel too. From Birmingham to Blackpool and Leicester to Liverpool, James has reviewed hotels, written narratives and created guides for those who love to travel.

Read more

Best time to book a flight from O'Hare Intl to Dublin

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

How far ahead should I book a flight from Chicago O'Hare Intl Airport to Dublin?

Use this chart to determine the optimal time to book a round-trip flight from O'Hare Intl to Dublin. Price data was last updated on September 12, 2025.

Booking 33 days in advance of your planned departure date is, on average, the best time to get cheap flights from Chicago O'Hare Intl Airport to Dublin. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, November is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Dublin (average of $509). Flying from Chicago O'Hare Intl Airport to Dublin in June is currently the most expensive (average of $923). 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 ORD to DUB?

Find hourly flight availability from O'Hare Intl to Dublin. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated septiembre 17, 2025.

It’s optimal to fly from Chicago O'Hare Intl Airport to Dublin in the morning. By choosing this option you can save up to 11% on the cost of your flight, compared to a flight in the afternoon.

What is the cheapest day to fly from Chicago O'Hare Intl Airport to Dublin?

Use this chart to determine the cheapest time to fly round-trip from O'Hare Intl to Dublin. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Chicago O'Hare Intl Airport to Dublin flight should consider departing on Wednesday mornings when fares are most often at their lowest. Monday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing Dublin

Get insights into the airlines that provide service to Dublin. 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 Dublin. Reviews last updated septiembre 17, 2025.
Read through reviews of airlines operating flights from Chicago O'Hare Intl Airport to Dublin, such as United Airlines, American Airlines, and Aer Lingus. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,926 reviews

Comfort

7.3

Crew

8.1

Food

6.6

Overall

7.4

Entertainment

7.1

Boarding

7.7

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
United Airlines
7.4
Good
8,926 reviews
United Airlines
7.4
Good
8,926 reviews

Comfort

7.3

Crew

8.1

Food

6.6

Overall

7.4

Entertainment

7.1

Boarding

7.7

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
American Airlines
7.2
Good
10,000 reviews
United Airlines
7.4
Good
8,926 reviews

Comfort

7.3

Crew

8.1

Food

6.6

Overall

7.4

Entertainment

7.1

Boarding

7.7

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
Aer Lingus
7.2
Good
1,277 reviews
United Airlines
7.4
Good
8,926 reviews

Comfort

7.3

Crew

8.1

Food

6.6

Overall

7.4

Entertainment

7.1

Boarding

7.7

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
Icelandair
7.0
Good
545 reviews
United Airlines
7.4
Good
8,926 reviews

Comfort

7.3

Crew

8.1

Food

6.6

Overall

7.4

Entertainment

7.1

Boarding

7.7

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
Iberia
7.0
Good
2,925 reviews
United Airlines
7.4
Good
8,926 reviews

Comfort

7.3

Crew

8.1

Food

6.6

Overall

7.4

Entertainment

7.1

Boarding

7.7

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

Related info for your journey

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

  • What airport do you fly into for flights to Dublin from Chicago O'Hare Intl?

    For a flight from Chicago O'Hare Intl to Dublin, you will be flying into Dublin. Dublin (DUB) is just 5.7 mi from the center of the city. Dublin is the only Dublin airport and it handles 19 inbound flights from Chicago O'Hare Intl per day. 15 airlines have flights to Dublin from Chicago O'Hare Intl on a regular basis.

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

    Departing from Chicago O'Hare Intl Airport to Dublin will take you 31h 10m. The distance between Chicago O'Hare Intl Airport and Dublin is about 3661 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines flying from Chicago O'Hare Intl Airport to Dublin round-trip?

    JetBlue, at $51, was found to be the cheapest airline from Chicago O'Hare Intl Airport to Dublin.Alternate airlines to your destination round-trip include Icelandair and TAP AIR PORTUGAL. JetBlue is priced at 92% lower than the current average price of a flight leaving 3 months from now.

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

    Consider Air France (100%), Iberia (78%) or American Airlines (75%) when booking your flight. These represent the most reliable airlines when flying from Chicago O'Hare Intl Airport to Dublin.

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

    While on average a flight from Chicago O'Hare Intl Airport to Dublin is generally $3,323, our data shows the cheapest flight currently is $404. When looking at the most popular route, (Chicago O'Hare Intl - Dublin), you can expect to pay $350 for that flight.

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

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

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

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

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

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

    Currently, November is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Dublin (average of $509). Flying from Chicago O'Hare Intl Airport to Dublin in June is currently the most expensive (average of $923). 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 Dublin?

Book flights to Dublin if you plan to visit one of these locations
Maynooth
Castleknock
Swords
Wicklow
Leixlip

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Top 10 airlines flying from O'Hare Intl to Dublin

Discover the top 10 airlines that operate flights from O'Hare Intl to Dublin. 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 septiembre 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$51Average$569FlexibilityNo cancel feeOn-time62%
IcelandairCheapest$355Average$543FlexibilityNo cancel feeOn-time76%
TAP AIR PORTUGALCheapest$393Average$498FlexibilityNo cancel feeOn-timeN/A
Scandinavian AirlinesCheapest$400Average$478FlexibilityNo cancel feeOn-time77%
SWISSCheapest$473Average$818FlexibilityNo cancel feeOn-time79%
Aer LingusCheapest$478Average$717FlexibilityNo cancel feeOn-timeN/A
British AirwaysCheapest$498Average$694FlexibilityNo cancel feeOn-time70%
IberiaCheapest$523Average$803FlexibilityNo cancel feeOn-time77%
Turkish AirlinesCheapest$528Average$596FlexibilityNo cancel feeOn-time77%
Air CanadaCheapest$535Average$676FlexibilityNo cancel feeOn-time67%

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