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$288+ 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 9/7. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — DUB
Aug 2 — Aug 91
Sat 8/2
Sat 8/9
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 November, booked 41 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 July 28, 2025.

Round-trip from

$492
(oojo)

One-way from

$288
(Kiwi.com)

Popular in

June

Cheapest in

January

Average price

$809

Good round-trip deal

$593 or less

Good one-way deal

$443 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. 17% potential increase in price ($150 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($21 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 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 July 28, 2025.

This Scandinavian Airlines deal was found by Cheapflights users on 7/27. 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.
Fri 12/267:20 pmORD - DUB
1 stop32h 05mScandinavian Airlines
Sun 1/1110:55 amDUB - ORD
2 stops35h 50mScandinavian Airlines
Deal found 7/27$501
This Cheapflightsfares deal was found by Cheapflights users on 7/27. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/64:38 pmORD - DUB
1 stop9h 52mAer Lingus
Sat 10/1811:35 amDUB - ORD
Nonstop8h 25mAer Lingus
Deal found 7/27$502
This United Airlines deal was found by Cheapflights users on 7/27. 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.
Tue 12/309:15 pmORD - DUB
1 stop31h 05mUnited Airlines
Fri 1/99:00 amDUB - ORD
1 stop32h 59mUnited Airlines
Deal found 7/27$506
This oojo deal was found by Cheapflights users on 7/27. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/127:25 pmORD - DUB
1 stop9h 40mIcelandair
Fri 8/2212:15 pmDUB - ORD
1 stop15h 00mIcelandair
Deal found 7/27$510
This Mytrip deal was found by Cheapflights users on 7/26. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/811:13 amORD - DUB
2 stops14h 32mMultiple Airlines
Mon 9/159:20 amDUB - ORD
3 stops29h 58mMultiple Airlines
Deal found 7/26$512
This FlightHub deal was found by Cheapflights users on 7/26. 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.
Sat 8/236:15 pmORD - DUB
1 stop17h 50mTAP AIR PORTUGAL
Fri 8/295:30 amDUB - ORD
1 stop16h 40mTAP AIR PORTUGAL
Deal found 7/26$521
This Kiwi.com deal was found by Cheapflights users on 7/26. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/287:50 pmORD - DUB
1 stop16h 55mSWISS
Tue 11/1812:55 pmDUB - ORD
1 stop33h 25mSWISS
Deal found 7/26$529
This Ticket deal was found by Cheapflights users on 7/26. 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 Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/2410:40 amORD - DUB
1 stop15h 05mAir Canada
Tue 9/29:20 amDUB - ORD
1 stop16h 51mAir Canada
Deal found 7/26$532
This Delta deal was found by Cheapflights users on 7/27. 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.
Tue 11/43:45 pmORD - DUB
1 stop11h 35mDelta
Thu 11/139:45 amDUB - ORD
1 stop11h 11mDelta
Deal found 7/27$534

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 July 28, 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

Fri 12/26

7:20 pm-9:25 am

1 stop32h 05m

Dublin

Sun 1/11

10:55 am-4:45 pm

2 stops35h 50m

$501

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Mon 10/6

4:38 pm-8:30 am

1 stop9h 52m

Dublin

Sat 10/18

11:35 am-2:00 pm

Nonstop8h 25m

$502

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Tue 12/30

9:15 pm-10:20 am

1 stop31h 05m

Dublin

Fri 1/9

9:00 am-11:59 am

1 stop32h 59m

$506

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Tue 8/12

7:25 pm-11:05 am

1 stop9h 40m

Dublin

Fri 8/22

12:15 pm-9:15 pm

1 stop15h 00m

$510

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Mon 9/8

11:13 am-7:45 am

2 stops14h 32m

Dublin

Mon 9/15

9:20 am-9:18 am

3 stops29h 58m

$512

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Sat 8/23

6:15 pm-6:05 pm

1 stop17h 50m

Dublin

Fri 8/29

5:30 am-4:10 pm

1 stop16h 40m

$521

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Tue 10/28

7:50 pm-5:45 pm

1 stop16h 55m

Dublin

Tue 11/18

12:55 pm-4:20 pm

1 stop33h 25m

$529

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Sun 8/24

10:40 am-7:45 am

1 stop15h 05m

Dublin

Tue 9/2

9:20 am-8:11 pm

1 stop16h 51m

$532

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Tue 11/4

3:45 pm-9:20 am

1 stop11h 35m

Dublin

Thu 11/13

9:45 am-2:56 pm

1 stop11h 11m

$534

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Sun 9/7

6:00 pm-12:45 pm

2 stops36h 45m

$288

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/26

Showing 1-10 of 13 results
1
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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 July 25, 2025.

Booking 41 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 $924). 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 July 28, 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 9% 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.

Weekly flight availability from Chicago O'Hare Intl Airport to Dublin

Explore weekly flight availability from O'Hare Intl to Dublin. 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 28, 2025.

The most flights from ORD to DUB are scheduled on a Monday (17 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (15 on average).

How much does it cost to fly round-trip from Chicago O'Hare Intl Airport to Dublin?

What’s the top layover airport for flights from Chicago O'Hare Intl Airport to Dublin?

Share of 1-stop round-trip flights from Chicago O'Hare Intl Airport to Dublin chosen by Cheapflights users in the past 12 months, using the same layover each way.

London (LHR) – chosen by Cheapflights users on 75% of 1-stop itineraries from Chicago O'Hare Intl Airport to Dublin on Cheapflights.

What’s the cheapest layover airport for flights from Chicago O'Hare Intl Airport to Dublin?

Average round-trip fare for 1-stop flights from Chicago O'Hare Intl Airport to Dublin, chosen by Cheapflights users in the past 12 months, with the same layover each way.

Reykjavik (KEF) is the most affordable 1-stop option, with an average round-trip price of $399.

What’s the fastest layover option from Chicago O'Hare Intl Airport to Dublin?

Shortest average travel time for 1-stop one-way flights from Chicago O'Hare Intl Airport to Dublin, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.

Flights via London (LHR) have the shortest average one-way travel time for 1-stop routes: 2h 40m.

Which airport typically offers the quickest layover for flights from Chicago O'Hare Intl Airport to Dublin?

Average layover duration for 1-stop one-way flights from Chicago O'Hare Intl Airport to Dublin, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Reykjavik (KEF) offer the fastest connection on this route, with an average layover time of 1h 48m.

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 July 28, 2025.
Read through reviews of airlines operating flights from Chicago O'Hare Intl Airport to Dublin, such as United Airlines, Scandinavian Airlines, and JetBlue. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,892 reviews

Food

6.6

Overall

7.4

Crew

8.1

Entertainment

7.1

Comfort

7.3

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
8,892 reviews
United Airlines
7.4
Good
8,892 reviews

Food

6.6

Overall

7.4

Crew

8.1

Entertainment

7.1

Comfort

7.3

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??
Scandinavian Airlines
7.3
Good
1,447 reviews
United Airlines
7.4
Good
8,892 reviews

Food

6.6

Overall

7.4

Crew

8.1

Entertainment

7.1

Comfort

7.3

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??
JetBlue
7.3
Good
2,914 reviews
United Airlines
7.4
Good
8,892 reviews

Food

6.6

Overall

7.4

Crew

8.1

Entertainment

7.1

Comfort

7.3

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??
WestJet
7.2
Good
2,968 reviews
United Airlines
7.4
Good
8,892 reviews

Food

6.6

Overall

7.4

Crew

8.1

Entertainment

7.1

Comfort

7.3

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??
Air Canada
7.1
Good
9,813 reviews
United Airlines
7.4
Good
8,892 reviews

Food

6.6

Overall

7.4

Crew

8.1

Entertainment

7.1

Comfort

7.3

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 16 inbound flights from Chicago O'Hare Intl per day. 15 airlines have flights to Dublin from Chicago O'Hare Intl on a regular basis.

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

    Icelandair, at $492, was found to be the cheapest airline from Chicago O'Hare Intl Airport to Dublin.Alternate airlines to your destination round-trip include Aer Lingus and Scandinavian Airlines. Icelandair is priced at 28% lower than the current average price of a flight leaving 3 months from now.

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

    The cheapest airlines for a one-way flight from Chicago O'Hare Intl Airport to Dublin are TAP AIR PORTUGAL ($291), Aer Lingus ($338), and WestJet ($350).

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

    Consider Air France (75%), American Airlines (58%) or Aer Lingus (58%) 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 $3,750, our data shows the cheapest flight currently is $355. When looking at the most popular route, (Chicago O'Hare Intl - Dublin), you can expect to pay $404 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 $924). 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 July 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$51Average$275FlexibilityNo cancel feeOn-time62%
IcelandairCheapest$353Average$539FlexibilityNo cancel feeOn-time76%
TAP AIR PORTUGALCheapest$393Average$483FlexibilityNo cancel feeOn-timeN/A
Scandinavian AirlinesCheapest$400Average$484FlexibilityNo cancel feeOn-time77%
Aer LingusCheapest$452Average$710FlexibilityNo cancel feeOn-timeN/A
SWISSCheapest$473Average$818FlexibilityNo cancel feeOn-time79%
IberiaCheapest$512Average$738FlexibilityNo cancel feeOn-time77%
British AirwaysCheapest$523Average$679FlexibilityNo cancel feeOn-time70%
FinnairCheapest$526Average$835FlexibilityNo cancel feeOn-time76%
American AirlinesCheapest$526Average$826FlexibilityNo cancel feeOn-time71%

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