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O'Hare Intl

$480+ 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 11/3. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — ORD
Aug 26 — Sep 21
Wed 8/26
Wed 9/2
1 adult, Economy
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Cheapflights Tip: The best prices from Dublin to Chicago O'Hare Intl are usually found in November or September, booked 67 days in advance, depart on a Sunday or Thursday and return on a Wednesday

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 July 27, 2026.

This KLM deal was found by Cheapflights users on 7/22. 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.
Fri 9/258:55 am
DUB
-
ORD
1 stop11h 20m
KLM
Tue 9/291:29 pm
ORD
-
DUB
1 stop13h 46m
KLM
Deal found 7/22$614
This Delta deal was found by Cheapflights users on 7/25. 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.
Tue 9/811:10 am
DUB
-
ORD
2 stops17h 22m
Delta
Tue 9/1510:30 am
ORD
-
DUB
2 stops15h 45m
Delta
Deal found 7/25$615
This Delta deal was found by Cheapflights users on 7/24. 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.
Wed 9/25:55 am
DUB
-
ORD
2 stops18h 25m
Delta
Tue 9/810:30 am
ORD
-
DUB
2 stops15h 45m
Delta
Deal found 7/24$616
This British Airways deal was found by Cheapflights users on 7/23. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/279:30 am
DUB
-
ORD
Nonstop8h 00m
British Airways
Mon 8/3110:30 pm
ORD
-
DUB
1 stop14h 10m
British Airways
Deal found 7/23$617
This British Airways deal was found by Cheapflights users on 7/24. 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.
Mon 8/248:30 pm
DUB
-
ORD
1 stop25h 25m
British Airways
Tue 9/16:15 pm
ORD
-
DUB
1 stop16h 45m
British Airways
Deal found 7/24$618
This Finnair deal was found by Cheapflights users on 7/24. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/279:40 am
DUB
-
ORD
1 stop14h 10m
Finnair
Sat 9/510:20 pm
ORD
-
DUB
Nonstop7h 30m
Finnair
Deal found 7/24$620
This TravelUp deal was found by Cheapflights users on 7/21. 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.
Fri 8/289:30 am
DUB
-
ORD
Nonstop8h 00m
Multiple Airlines
Sat 9/510:20 pm
ORD
-
DUB
Nonstop7h 30m
Multiple Airlines
Deal found 7/21$621
This Gotogate deal was found by Cheapflights users on 7/24. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/24:45 pm
DUB
-
ORD
Nonstop8h 30m
Aer Lingus
Tue 9/83:45 pm
ORD
-
DUB
Nonstop7h 25m
Aer Lingus
Deal found 7/24$622
This JetBlue 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/2811:30 am
DUB
-
ORD
1 stop16h 28m
JetBlue
Sun 9/68:20 pm
ORD
-
DUB
1 stop30h 00m
JetBlue
Deal found 7/26$623
This Expedia deal was found by Cheapflights users on 7/24. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/83:00 pm
DUB
-
ORD
1 stop12h 28m
KLM
Mon 10/1212:33 pm
ORD
-
DUB
1 stop13h 22m
KLM
Deal found 7/24$624
This TravelUp deal was found by Cheapflights users on 7/24. 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 TravelUp is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2711:45 am
DUB
-
ORD
1 stop11h 57m
Multiple Airlines
Sat 9/51:31 pm
ORD
-
DUB
1 stop10h 59m
Multiple Airlines
Deal found 7/24$625

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 July 27, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$614
(KLM)

One-way from

$480
(Cheapflightsfares)

Popular in

August

Cheapest in

November

Average price

$847

Good round-trip deal

$778 or less

Good one-way deal

$713 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. 10% potential increase in price ($79 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($16 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2026
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 July 27, 2026.
Use the filters below to find and compare flights from Dublin to Chicago O'Hare Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

DublinChicago

DUB - ORD

DUBORD

Dublin

Tue 9/8

11:10 am-10:32 pm

2 stops17h 22m

Chicago O'Hare Intl

Tue 9/15

10:29 am-8:15 am

2 stops15h 46m

$615

DublinChicago

DUB - ORD

DUBORD

Dublin

Tue 9/15

8:55 am-9:37 pm

2 stops18h 42m

Chicago O'Hare Intl

Tue 9/29

6:00 pm-3:25 pm

2 stops15h 25m

$617

DublinChicago

DUB - ORD

DUBORD

Dublin

Fri 10/16

5:55 am-6:29 pm

2 stops18h 34m

Chicago O'Hare Intl

Fri 10/30

1:23 pm-7:45 am

1 stop13h 22m

$617
Quickest round-trip

DublinChicago

DUB - ORD

DUBORD

Dublin

Thu 8/27

9:30 am-11:30 am

Nonstop8h 00m

Chicago O'Hare Intl

Sat 9/5

10:20 pm-11:50 am

Nonstop7h 30m

$619

DublinChicago

DUB - ORD

DUBORD

Dublin

Sat 9/12

3:00 pm-9:24 am

1 stop24h 24m

Chicago O'Hare Intl

Sat 9/26

5:10 pm-6:25 pm

1 stop19h 15m

$627

DublinChicago

DUB - ORD

DUBORD

Dublin

Wed 8/19

11:30 am-5:35 pm

1 stop12h 05m

Chicago O'Hare Intl

Fri 8/28

11:01 am-8:20 am

1 stop15h 19m

$700

DublinChicago

DUB - ORD

DUBORD

Dublin

Wed 8/12

9:30 am-11:30 am

Nonstop8h 00m

Chicago O'Hare Intl

Mon 8/31

10:30 pm-6:40 pm

1 stop14h 10m

$726

DublinChicago

DUB - ORD

DUBORD

Dublin

Wed 8/19

9:30 am-11:30 am

Nonstop8h 00m

Chicago O'Hare Intl

Fri 8/28

10:30 pm-7:25 pm

1 stop14h 55m

$728

DublinChicago

DUB - ORD

DUBORD

Dublin

Tue 8/18

9:30 am-11:30 am

Nonstop8h 00m

Chicago O'Hare Intl

Tue 8/25

10:20 pm-11:50 am

Nonstop7h 30m

$737

DublinChicago

DUB - ORD

DUBORD

Dublin

Thu 10/29

3:50 pm-7:25 pm

Nonstop8h 35m

Chicago O'Hare Intl

Fri 11/6

3:55 pm-5:15 am

Nonstop7h 20m

$750

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/22

Showing 1-10 of 20 resultsSorted by cheapest first
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 July.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy2 starsTrust Score*3 stars
Thrive TravelPrice Accuracy3 starsTrust Score*2 stars

*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 FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Dublin-Chicago O'Hare Intl Airport flight deals on Cheapflights vs. FlightHub >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 FlightHub the most. FlightHub 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?

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 66 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, November is the cheapest month in which you can book a flight from Dublin to Chicago O'Hare Intl Airport (average of $476). Flying from Dublin to Chicago O'Hare Intl Airport in August is currently the most expensive (average of $852). 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 July 27, 2026.

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.

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

Airfare is below average for this route at the moment.

Dublin to Chicago O'Hare Intl Airport flights typically cost between $665 and $972 in September.
The cheapest round-trip price found within the last 5 days was $614 on KLM (Sep 25-Sep 29).

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
Our travel experts
Ramsey Qubein

Ramsey Qubein

Expert on ORD

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

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 July 27, 2026.
Get a feel of what it's like to fly with United Airlines and Aer Lingus 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
10,043 reviews

Food

6.6

Entertainment

7.1

Boarding

7.7

Comfort

7.3

Crew

8.1

Overall

7.4

Reviews

1 / 20
8.0
Excellent

Anonymous,Oct 2025

YUL - ORD

Crew and customer service are 5 stars. I had a lot of luggage for a very long trip and they were nothing but helpful and found solutions to every problem. It was my first time flying with United, and they really are the friendly skies. Leg room however, on 2/3 flights was terrible. Same for entertainment: There was only a seat-mounted screen on 1/3 flights. It would have been nice to have on the longest leg of the journey.
United Airlines
7.4
Good
10,043 reviews
United Airlines
7.4
Good
10,043 reviews

Food

6.6

Entertainment

7.1

Boarding

7.7

Comfort

7.3

Crew

8.1

Overall

7.4

Reviews

1 / 20
8.0
Excellent

Anonymous,Oct 2025

YUL - ORD

Crew and customer service are 5 stars. I had a lot of luggage for a very long trip and they were nothing but helpful and found solutions to every problem. It was my first time flying with United, and they really are the friendly skies. Leg room however, on 2/3 flights was terrible. Same for entertainment: There was only a seat-mounted screen on 1/3 flights. It would have been nice to have on the longest leg of the journey.
Aer Lingus
7.3
Good
1,682 reviews
United Airlines
7.4
Good
10,043 reviews

Food

6.6

Entertainment

7.1

Boarding

7.7

Comfort

7.3

Crew

8.1

Overall

7.4

Reviews

1 / 20
8.0
Excellent

Anonymous,Oct 2025

YUL - ORD

Crew and customer service are 5 stars. I had a lot of luggage for a very long trip and they were nothing but helpful and found solutions to every problem. It was my first time flying with United, and they really are the friendly skies. Leg room however, on 2/3 flights was terrible. Same for entertainment: There was only a seat-mounted screen on 1/3 flights. It would have been nice to have on the longest leg of the journey.

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 19 outbound flights to Chicago O'Hare Intl per day from 2 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 17h 22m. The distance from Dublin to Chicago O'Hare Intl Airport is about 3661 mi.

  • 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 Aer Lingus. Our recent data shows that you can find tickets from as low as $463 on this airline. An additional option worth looking into is United Airlines, starting at $473. Aer Lingus is 31% 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 $290. JetBlue flights start at $317 while deals on Finnair start at $419 one-way.

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

    Consider Alaska Airlines (89%), Finnair (89%) or Iberia (82%) 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 $2,164 for a flight from Dublin to Chicago O'Hare Intl Airport. The cheapest flight overall is $634 while the most popular route, (Dublin - Chicago O'Hare Intl) is currently priced at $436.

  • 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, November is the cheapest month in which you can book a flight from Dublin to Chicago O'Hare Intl Airport (average of $476). Flying from Dublin to Chicago O'Hare Intl Airport in August is currently the most expensive (average of $852). 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
Benton Harbor
Rosemont
Schaumburg
Lake Geneva
Naperville
Oak Brook
Delavan
Oakbrook Terrace
Gurnee
South Holland
Libertyville
Orland Park
Hoffman Estates
Beloit
Downers Grove
Rockford
Racine
Great Lakes
Janesville
Joliet

Browse thousands of different options on Cheapflights for your next trip

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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

Top 2 airlines flying from Dublin to O'Hare Intl

Discover the top 2 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 July 27, 2026.
AirlineCheapestAverageFlexibilityOn-time
Aer LingusCheapest$463Average$678FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$473Average$680FlexibilityNo cancel feeOn-time69%

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