HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
O'Hare Intl

$437+ Cheap flights from Dublin (DUB) 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 2/7. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — ORD
ene. 11 — ene. 181
dom. 1/11
dom. 1/18
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Dublin to O'Hare Intl with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheapflights Tip: The best prices from Dublin to Chicago O'Hare Intl are usually found in November or September, booked 31 days in advance, depart on a Sunday or Saturday and return on a Tuesday

Cheap flight deals from Dublin to O'Hare Intl

Cheapest flights from Dublin to O'Hare Intl
Explore the most affordable flight options available from Dublin to O'Hare Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on diciembre 12, 2025.

This Booking.com deal was found by Cheapflights users on 12/11. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 12/2611:30 amDUB - ORD
Nonstop8h 30mAer Lingus
jue. 1/17:40 pmORD - DUB
Nonstop7h 20mAer Lingus
Deal found 12/11$610
This American Airlines deal was found by Cheapflights users on 12/10. 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.
vie. 12/261:40 pmDUB - ORD
1 stop31h 45mAmerican Airlines
jue. 1/15:21 amORD - DUB
1 stop19h 49mAmerican Airlines
Deal found 12/10$618
This British Airways deal was found by Cheapflights users on 12/10. 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.
lun. 12/227:35 amDUB - ORD
1 stop13h 50mBritish Airways
mié. 12/318:40 pmORD - DUB
1 stop10h 55mBritish Airways
Deal found 12/10$628
This Finnair deal was found by Cheapflights users on 12/10. 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.
vie. 12/2611:30 amDUB - ORD
1 stop12h 00mMultiple Airlines
jue. 1/11:15 pmORD - DUB
1 stop11h 55mMultiple Airlines
Deal found 12/10$634
This deal was found by Cheapflights users on 12/11. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 12/2312:05 pmDUB - ORD
1 stop12h 47mUnited Airlines
dom. 1/116:35 pmORD - DUB
Nonstop7h 35mUnited Airlines
Deal found 12/11$639
This Mytrip deal was found by Cheapflights users on 12/10. 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.
dom. 12/287:05 pmDUB - ORD
1 stop27h 40mScandinavian Airlines
lun. 1/197:20 pmORD - DUB
1 stop34h 25mScandinavian Airlines
Deal found 12/10$640
This Finnair deal was found by Cheapflights users on 12/10. 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.
mar. 12/2311:30 amDUB - ORD
1 stop12h 00mMultiple Airlines
mié. 12/312:50 pmORD - DUB
1 stop11h 50mMultiple Airlines
Deal found 12/10$653
This Delta deal was found by Cheapflights users on 12/10. 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.
vie. 12/195:55 amDUB - ORD
1 stop14h 25mDelta
lun. 12/295:30 amORD - DUB
1 stop20h 15mDelta
Deal found 12/10$670
This Delta deal was found by Cheapflights users on 12/10. 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.
mar. 12/239:45 amDUB - ORD
1 stop14h 02mDelta
mié. 12/316:02 pmORD - DUB
2 stops15h 43mDelta
Deal found 12/10$682
This KLM deal was found by Cheapflights users on 12/10. 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.
sáb. 12/138:50 amDUB - ORD
1 stop11h 30mKLM
dom. 12/143:50 pmORD - DUB
1 stop11h 30mKLM
Deal found 12/10$692

Find flight deals from Dublin to O'Hare Intl

Discover tips and strategies to find the most affordable flight options for your journey from Dublin (DUB) to O'Hare Intl (ORD). 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 diciembre 12, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$468
(Mytrip)

One-way from

$437
(Kiwi.com)

Popular in

July

Cheapest in

November

Average price

$625

Good round-trip deal

$645 or less

Good one-way deal

$492 or less
Provider with most accurate pricing for Dublin-Chicago O'Hare Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Dublin-Chicago O'Hare Intl flights.
Search Deals
From Dublin to Chicago O'Hare Intl
Search Deals
One-way flight from Dublin to Chicago O'Hare Intl
Search Deals
Highest demand for flights based on searches. 14% potential increase in price ($100 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($15 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals
Price to beat on a round-trip flight from Dublin to Chicago O'Hare Intl.
Search Deals
Price to beat on a one-way flight from Dublin to Chicago O'Hare Intl.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Dublin 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 diciembre 12, 2025.
Use the filters below to find and compare flights from Dublin to Chicago O'Hare Intl Airport that are best for you.

Fly from

Dublin

Fly to

O'Hare Intl

Route

Depart

Return

Price

DublinChicago

DUB - ORD

DUBORD

Dublin

jue. 1/22

11:30 am-4:45 pm

2 stops35h 15m

Chicago O'Hare Intl

lun. 1/26

7:20 pm-10:45 am

2 stops33h 25m

$474

DublinChicago

DUB - ORD

DUBORD

Dublin

mar. 2/3

11:30 am-5:20 pm

1 stop11h 50m

Chicago O'Hare Intl

mar. 2/10

6:30 pm-10:15 am

1 stop9h 45m

$537

DublinChicago

DUB - ORD

DUBORD

Dublin

sáb. 1/24

10:10 am-4:45 pm

1 stop12h 35m

Chicago O'Hare Intl

lun. 1/26

7:01 am-11:45 am

2 stops22h 44m

$549

DublinChicago

DUB - ORD

DUBORD

Dublin

mar. 2/3

11:30 am-4:45 pm

2 stops35h 15m

Chicago O'Hare Intl

mar. 2/10

7:05 am-6:20 pm

2 stops29h 15m

$554

DublinChicago

DUB - ORD

DUBORD

Dublin

dom. 3/1

5:55 am-4:41 pm

2 stops16h 46m

Chicago O'Hare Intl

mié. 3/11

5:50 pm-12:40 pm

2 stops13h 50m

$585

DublinChicago

DUB - ORD

DUBORD

Dublin

mié. 5/6

10:40 am-7:26 pm

1 stop14h 46m

Chicago O'Hare Intl

jue. 5/14

10:35 am-9:00 am

1 stop16h 25m

$587

DublinChicago

DUB - ORD

DUBORD

Dublin

vie. 5/1

12:15 pm-6:15 pm

1 stop12h 00m

Chicago O'Hare Intl

jue. 5/14

7:25 pm-11:05 am

1 stop9h 40m

$590

DublinChicago

DUB - ORD

DUBORD

Dublin

vie. 5/1

12:15 pm-9:40 pm

1 stop15h 25m

Chicago O'Hare Intl

sáb. 5/9

7:25 pm-11:05 am

1 stop9h 40m

$590

DublinChicago

DUB - ORD

DUBORD

Dublin

mié. 5/6

12:15 pm-6:15 pm

1 stop12h 00m

Chicago O'Hare Intl

mié. 5/13

10:40 pm-11:05 am

1 stop30h 25m

$592

DublinChicago

DUB - ORD

DUBORD

Dublin

lun. 1/26

7:00 pm-3:00 pm

3 stops50h 00m

$438

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/12

Showing 1-10 of 20 results
1
2

Compare providers for flights from Dublin to O'Hare Intl

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Dublin to O'Hare Intl in December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Dublin-Chicago O'Hare Intl Airport flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Dublin-Chicago O'Hare Intl Airport flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Dublin-Chicago O'Hare Intl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Dublin-Chicago O'Hare Intl Airport flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Dublin-Chicago O'Hare Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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

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

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

Use this chart to determine the optimal time to book a round-trip flight from Dublin to O'Hare Intl. Price data was last updated on December 5, 2025.

To ensure you get the cheapest price possible for a flight from Dublin to Chicago O'Hare Intl Airport, you should look to book at least 31 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, February is the cheapest month in which you can book a flight from Dublin to Chicago O'Hare Intl Airport (average of $383). Flying from Dublin to Chicago O'Hare Intl Airport in July is currently the most expensive (average of $636). 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 DUB to ORD?

Find hourly flight availability from Dublin 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 diciembre 12, 2025.

When flying from Dublin to Chicago O'Hare Intl Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

The best insider tips for Dublin to Chicago O'Hare Intl Airport flights

AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your Dublin to Chicago O'Hare Intl Airport trip
Airports
DUB

For US travelers, preclearance at DUB can be time-consuming. Allow 30-45 minutes after security for this process.

Read more about DUBBy James March
ORD

At ORD, all international flights arrive at Terminal 5. Prepare for long walks to immigration and other terminals.

Read more about ORDBy Ramsey Qubein
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

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 diciembre 12, 2025.
Get a feel of what it's like to fly with United Airlines, Aer Lingus, and Lufthansa from Dublin to Chicago O'Hare Intl Airport by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,093 reviews

Entertainment

7.1

Overall

7.4

Comfort

7.3

Boarding

7.7

Crew

8.1

Food

6.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

AMS - EWR

It was good! The first 3/4 of the trip was uncomfortably cold. Only one option for lunch that I didn’t enjoy (vegetarian).
United Airlines
7.4
Good
9,093 reviews
United Airlines
7.4
Good
9,093 reviews

Entertainment

7.1

Overall

7.4

Comfort

7.3

Boarding

7.7

Crew

8.1

Food

6.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

AMS - EWR

It was good! The first 3/4 of the trip was uncomfortably cold. Only one option for lunch that I didn’t enjoy (vegetarian).
Aer Lingus
7.2
Good
1,394 reviews
United Airlines
7.4
Good
9,093 reviews

Entertainment

7.1

Overall

7.4

Comfort

7.3

Boarding

7.7

Crew

8.1

Food

6.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

AMS - EWR

It was good! The first 3/4 of the trip was uncomfortably cold. Only one option for lunch that I didn’t enjoy (vegetarian).
Lufthansa
6.8
Okay
7,626 reviews
United Airlines
7.4
Good
9,093 reviews

Entertainment

7.1

Overall

7.4

Comfort

7.3

Boarding

7.7

Crew

8.1

Food

6.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

AMS - EWR

It was good! The first 3/4 of the trip was uncomfortably cold. Only one option for lunch that I didn’t enjoy (vegetarian).

Related info for your journey

Find useful and relevant information for your journey from Dublin 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 airport do you fly from for flights from Dublin to Chicago O'Hare Intl?

    Most people fly from Dublin (DUB) if they book a flight from Dublin to Chicago O'Hare Intl. On average, Dublin has 11 outbound flights to Chicago O'Hare Intl per day from 3 airlines. Dublin is conveniently located just 5.7 mi from Dublin’s city center.

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

    Departing from Dublin to Chicago O'Hare Intl Airport will take you 11h 50m. The distance from Dublin to Chicago O'Hare Intl Airport is about 3661 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

    Our cheapest airline available from Dublin to Chicago O'Hare Intl Airport is Lufthansa. Our recent data shows that you can find tickets from as low as $411 on this airline. Additional options worth looking into are Aer Lingus and United Airlines, starting at $455 and $479 round-trip. Lufthansa is 32% cheaper than the average price of flights available within the next 90 days to this destination.

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

    To fly one-way, consider booking your trip with Icelandair, which is currently one of the cheapest options available, starting at $351. Aer Lingus flights start at $416 while deals on Brussels Airlines start at $426 one-way.

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

    Consider Alaska Airlines (80%), Finnair (80%) or Iberia (79%) when booking your flight. These represent the most reliable airlines when flying from Dublin to Chicago O'Hare Intl Airport.

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

    On average you can expect to pay $1,156 for a flight from Dublin to Chicago O'Hare Intl Airport. The cheapest flight overall is $467 while the most popular route, (Dublin - Chicago O'Hare Intl) is currently priced at $416.

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

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

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

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

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

    Currently, February is the cheapest month in which you can book a flight from Dublin to Chicago O'Hare Intl Airport (average of $383). Flying from Dublin to Chicago O'Hare Intl Airport in July is currently the most expensive (average of $636). 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
Gurnee
Elgin
Naperville
Hoffman Estates
Beloit
Delavan
Oak Brook
Downers Grove
Des Plaines
Elk Grove Village
Skokie
Lake Geneva
Bridgeview
Warrenville
Waukegan
Aurora
Kenosha
Evanston

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Dublin to O'Hare Intl

See prices for flight routes from nearby airports that may be better suited for you.
Shannon to O'Hare Intl flights
Cork to O'Hare Intl flights
Milltown (Kerry) to O'Hare Intl flights

Top 3 airlines flying from Dublin to O'Hare Intl

Discover the top 3 airlines that operate flights from Dublin 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 diciembre 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest$411Average$543FlexibilityNo cancel feeOn-time76%
Aer LingusCheapest$455Average$636FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$479Average$680FlexibilityNo cancel feeOn-time69%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.