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O'Hare Intl

$320+ 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 4/29. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — ORD
Apr 10 — Apr 171
Fri 4/10
Fri 4/17
1 adult, Economy
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1. Tell us where you want to go

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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 Wednesday and return on a Monday

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 March 11, 2026.

This Trip.com deal was found by Cheapflights users on 3/6. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/217:05 pm
DUB
-
ORD
1 stop27h 05m
Scandinavian Airlines
Mon 4/277:15 pm
ORD
-
DUB
1 stop17h 05m
Scandinavian Airlines
Deal found 3/6$437
This Mytrip deal was found by Cheapflights users on 3/6. 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.
Thu 10/2911:15 am
DUB
-
ORD
2 stops35h 30m
Scandinavian Airlines
Fri 11/67:20 pm
ORD
-
DUB
2 stops34h 00m
Scandinavian Airlines
Deal found 3/6$444
This Mytrip deal was found by Cheapflights users on 3/8. 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.
Fri 10/3010:45 am
DUB
-
ORD
2 stops36h 00m
Scandinavian Airlines
Wed 11/47:20 pm
ORD
-
DUB
1 stop34h 25m
Scandinavian Airlines
Deal found 3/8$445
This Gotogate deal was found by Cheapflights users on 3/9. 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.
Thu 10/2911:15 am
DUB
-
ORD
2 stops35h 30m
Scandinavian Airlines
Thu 11/57:20 pm
ORD
-
DUB
2 stops58h 00m
Scandinavian Airlines
Deal found 3/9$450
This Mytrip deal was found by Cheapflights users on 3/6. 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 4/207:50 pm
DUB
-
ORD
2 stops50h 20m
Scandinavian Airlines
Mon 4/277:15 pm
ORD
-
DUB
1 stop17h 05m
Scandinavian Airlines
Deal found 3/6$461
This SmartFares deal was found by Cheapflights users on 3/7. 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.
Tue 5/510:40 am
DUB
-
ORD
1 stop16h 56m
JetBlue
Sat 5/98:31 am
ORD
-
DUB
1 stop18h 29m
JetBlue
Deal found 3/7$465
This Mytrip deal was found by Cheapflights users on 3/9. 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.
Fri 10/2311:10 am
DUB
-
ORD
2 stops35h 00m
Scandinavian Airlines
Tue 10/278:20 pm
ORD
-
DUB
1 stop34h 25m
Scandinavian Airlines
Deal found 3/9$468
This JetBlue deal was found by Cheapflights users on 3/8. 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.
Thu 4/2310:40 am
DUB
-
ORD
1 stop16h 59m
JetBlue
Wed 4/298:31 am
ORD
-
DUB
1 stop18h 29m
JetBlue
Deal found 3/8$472

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 March 11, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$461
(Mytrip)

One-way from

$320
(Kiwi.com)

Popular in

July

Cheapest in

November

Average price

$655

Good round-trip deal

$690 or less

Good one-way deal

$523 or less
Provider with most accurate pricing for Dublin-Chicago O'Hare Intl flight deals.
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Provider most trusted by Cheapflights users for Dublin-Chicago O'Hare Intl flights.
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From Dublin to Chicago O'Hare Intl
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One-way flight from Dublin to Chicago O'Hare Intl
Search Deals
Highest demand for flights based on searches. 14% potential increase in price ($108 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 March 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 March 11, 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

Thu 4/16

2:15 pm-6:15 pm

1 stop10h 00m

Chicago O'Hare Intl

Sun 4/19

7:25 pm-1:15 pm

1 stop11h 50m

$567

DublinChicago

DUB - ORD

DUBORD

Dublin

Wed 4/1

7:45 pm-3:00 pm

1 stop25h 15m

Chicago O'Hare Intl

Tue 4/7

6:41 pm-6:50 pm

2 stops18h 09m

$577
Quickest round-trip

DublinChicago

DUB - ORD

DUBORD

Dublin

Fri 5/22

9:30 am-11:30 am

Nonstop8h 00m

Chicago O'Hare Intl

Tue 6/2

10:20 pm-11:50 am

Nonstop7h 30m

$578

DublinChicago

DUB - ORD

DUBORD

Dublin

Wed 5/27

9:30 am-11:30 am

Nonstop8h 00m

Chicago O'Hare Intl

Sun 6/7

10:20 pm-11:50 am

Nonstop7h 30m

$600

DublinChicago

DUB - ORD

DUBORD

Dublin

Fri 5/15

9:30 am-11:30 am

Nonstop8h 00m

Chicago O'Hare Intl

Mon 5/25

10:20 pm-11:50 am

Nonstop7h 30m

$601

DublinChicago

DUB - ORD

DUBORD

Dublin

Mon 3/30

8:30 am-3:00 pm

1 stop12h 30m

Chicago O'Hare Intl

Fri 5/1

9:15 pm-2:30 pm

1 stop11h 15m

$624

DublinChicago

DUB - ORD

DUBORD

Dublin

Wed 5/27

8:30 pm-3:55 pm

1 stop25h 25m

Chicago O'Hare Intl

Sun 6/7

10:20 pm-11:50 am

Nonstop7h 30m

$625

DublinChicago

DUB - ORD

DUBORD

Dublin

Thu 6/11

8:55 am-2:15 pm

1 stop11h 20m

Chicago O'Hare Intl

Thu 6/25

5:45 pm-9:15 am

1 stop9h 30m

$640

DublinChicago

DUB - ORD

DUBORD

Dublin

Wed 4/1

8:55 am-2:30 pm

1 stop11h 35m

Chicago O'Hare Intl

Sun 4/5

10:40 am-8:20 am

2 stops15h 40m

$642
Cheapest one-way

DublinChicago

DUB - ORD

DUBORD

Dublin

Tue 5/12

2:15 pm-6:15 pm

1 stop10h 00m

$347

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/11

Showing 1-10 of 16 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 March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 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?

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 March 6, 2026.

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 67 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, March is the cheapest month in which you can book a flight from Dublin to Chicago O'Hare Intl Airport (average of $413). Flying from Dublin to Chicago O'Hare Intl Airport in July is currently the most expensive (average of $638). 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 March 11, 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?

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 March 11, 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
9,415 reviews

Boarding

7.7

Entertainment

7.1

Overall

7.4

Crew

8.1

Comfort

7.3

Food

6.6

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
9,415 reviews
United Airlines
7.4
Good
9,415 reviews

Boarding

7.7

Entertainment

7.1

Overall

7.4

Crew

8.1

Comfort

7.3

Food

6.6

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
7.2
Good
1,474 reviews
United Airlines
7.4
Good
9,415 reviews

Boarding

7.7

Entertainment

7.1

Overall

7.4

Crew

8.1

Comfort

7.3

Food

6.6

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 11 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 8h. 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 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 $479. Aer Lingus is 27% 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 $321. Finnair flights start at $419 while deals on Aer Lingus start at $437 one-way.

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

    Consider American Airlines (93%), Aer Lingus (93%) or Iberia (93%) 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 $1,137 for a flight from Dublin to Chicago O'Hare Intl Airport. The cheapest flight overall is $463 while the most popular route, (Dublin - Chicago O'Hare Intl) is currently priced at $487.

  • 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, March is the cheapest month in which you can book a flight from Dublin to Chicago O'Hare Intl Airport (average of $413). Flying from Dublin to Chicago O'Hare Intl Airport in July is currently the most expensive (average of $638). 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
Naperville
Lake Geneva
Hoffman Estates
Delavan
Downers Grove
Des Plaines
Elgin
Elk Grove Village
Skokie
Oak Brook
South Holland
Beloit
Libertyville
Waukegan
Warrenville
Bridgeview
Oakbrook Terrace

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 March 11, 2026.
AirlineCheapestAverageFlexibilityOn-time
Aer LingusCheapest$463Average$654FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$479Average$680FlexibilityNo cancel feeOn-time69%

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