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O'Hare Intl

$416+ 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 9/14. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — ORD
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
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Cheapflights Tip: The best prices from Dublin to Chicago O'Hare Intl are usually found in February or November, booked 72 days in advance, depart on a Wednesday or Friday and return on a Tuesday

Cheap 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 June 12, 2025.

Round-trip from

$530
(Billigflug)

One-way from

$416
(Kiwi.com)

Popular in

July

Cheapest in

February

Average price

$662

Good round-trip deal

$702 or less

Good one-way deal

$531 or less
From Dublin to Chicago O'Hare Intl
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One-way flight from Dublin to Chicago O'Hare Intl
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Highest demand for flights based on searches. 14% potential increase in price ($103 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($17 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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Price to beat on a round-trip flight from Dublin to Chicago O'Hare Intl.
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Price to beat on a one-way flight from Dublin to Chicago O'Hare Intl.
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Find 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 June 12, 2025.

This Billigflug deal was found by Cheapflights users on 6/9. 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 Billigflug is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/159:30 amDUB - ORD
1 stop29h 15mMultiple Airlines
Tue 7/2210:30 pmORD - DUB
1 stop12h 35mMultiple Airlines
Deal found 6/9$530
This Scandinavian Airlines deal was found by Cheapflights users on 6/10. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/2911:30 amDUB - ORD
2 stops35h 15mScandinavian Airlines
Tue 11/411:00 amORD - DUB
2 stops18h 45mScandinavian Airlines
Deal found 6/10$531
This Delta deal was found by Cheapflights users on 6/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/305:55 amDUB - ORD
2 stops15h 09mDelta
Wed 9/36:20 pmORD - DUB
2 stops14h 40mDelta
Deal found 6/11$532
This Austrian Airlines deal was found by Cheapflights users on 6/10. 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 Austrian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/135:55 amDUB - ORD
2 stops37h 25mAustrian Airlines
Mon 9/294:20 pmORD - DUB
2 stops23h 55mAustrian Airlines
Deal found 6/10$533
This American Airlines deal was found by Cheapflights users on 6/11. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/188:40 amDUB - ORD
1 stop12h 45mAmerican Airlines
Thu 1/14:45 pmORD - DUB
2 stops13h 35mAmerican Airlines
Deal found 6/11$534
This British Airways deal was found by Cheapflights users on 6/11. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/216:30 pmDUB - ORD
1 stop25h 25mBritish Airways
Tue 12/305:00 pmORD - DUB
1 stop13h 05mBritish Airways
Deal found 6/11$536
This United Airlines deal was found by Cheapflights users on 6/12. 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 8/129:20 amDUB - ORD
1 stop11h 35mUnited Airlines
Sat 9/278:20 pmORD - DUB
Nonstop7h 25mUnited Airlines
Deal found 6/12$537
This Bravofly deal was found by Cheapflights users on 6/11. 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 Bravofly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/137:30 amDUB - ORD
1 stop12h 20mAer Lingus
Sun 10/199:15 pmORD - DUB
Nonstop7h 25mAer Lingus
Deal found 6/11$546
This KLM deal was found by Cheapflights users on 6/12. 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.
Mon 8/118:55 amDUB - ORD
1 stop11h 15mKLM
Tue 9/304:20 pmORD - DUB
1 stop12h 05mKLM
Deal found 6/12$552
This Air Canada deal was found by Cheapflights users on 6/12. 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.
Tue 8/129:20 amDUB - ORD
2 stops28h 39mAir Canada
Fri 9/2610:40 amORD - DUB
1 stop15h 05mAir Canada
Deal found 6/12$555
This Icelandair deal was found by Cheapflights users on 6/11. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/1911:30 amDUB - ORD
1 stop11h 50mIcelandair
Tue 12/306:30 pmORD - DUB
1 stop9h 45mIcelandair
Deal found 6/11$570
This Orbitz deal was found by Cheapflights users on 6/12. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/149:30 amDUB - ORD
1 stop19h 21mIberia
Mon 7/214:30 pmORD - DUB
1 stop19h 10mIberia
Deal found 6/12$583

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 June 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

Tue 7/15

9:30 am-8:45 am

1 stop29h 15m

Chicago O'Hare Intl

Tue 7/22

10:30 pm-5:05 pm

1 stop12h 35m

$530

DublinChicago

DUB - ORD

DUBORD

Dublin

Wed 10/29

11:30 am-5:45 pm

2 stops35h 15m

Chicago O'Hare Intl

Tue 11/4

11:00 am-11:45 am

2 stops18h 45m

$531

DublinChicago

DUB - ORD

DUBORD

Dublin

Sat 8/30

5:55 am-3:04 pm

2 stops15h 09m

Chicago O'Hare Intl

Wed 9/3

6:20 pm-3:00 pm

2 stops14h 40m

$532

DublinChicago

DUB - ORD

DUBORD

Dublin

Sat 9/13

5:55 am-1:20 pm

2 stops37h 25m

Chicago O'Hare Intl

Sat 9/27

4:20 pm-4:55 pm

2 stops42h 35m

$533

DublinChicago

DUB - ORD

DUBORD

Dublin

Tue 8/12

9:20 am-2:55 pm

1 stop11h 35m

Chicago O'Hare Intl

Sat 9/27

8:20 pm-9:45 am

Nonstop7h 25m

$537

DublinChicago

DUB - ORD

DUBORD

Dublin

Wed 10/29

8:30 pm-9:25 pm

2 stops29h 55m

Chicago O'Hare Intl

Mon 11/3

6:54 pm-7:35 pm

2 stops18h 41m

$540

DublinChicago

DUB - ORD

DUBORD

Dublin

Mon 10/13

7:30 am-1:50 pm

1 stop12h 20m

Chicago O'Hare Intl

Sun 10/19

9:15 pm-10:40 am

Nonstop7h 25m

$546

DublinChicago

DUB - ORD

DUBORD

Dublin

Thu 7/24

9:30 am-9:29 pm

2 stops17h 59m

Chicago O'Hare Intl

Tue 8/19

7:10 pm-5:05 pm

1 stop15h 55m

$547

DublinChicago

DUB - ORD

DUBORD

Dublin

Mon 8/11

8:55 am-2:10 pm

1 stop11h 15m

Chicago O'Hare Intl

Tue 9/30

4:20 pm-10:25 am

1 stop12h 05m

$552

DublinChicago

DUB - ORD

DUBORD

Dublin

Tue 8/12

9:20 am-7:59 am

2 stops28h 39m

Chicago O'Hare Intl

Fri 9/26

10:40 am-7:45 am

1 stop15h 05m

$555

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

Showing 1-10 of 28 results
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The best insider tips for Dublin to Chicago O'Hare Intl Airport 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 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

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 June 9, 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 72 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, August is the cheapest month in which you can book a flight from Dublin to Chicago O'Hare Intl Airport (average of $245). Flying from Dublin to Chicago O'Hare Intl Airport in March is currently the most expensive (average of $321). 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 June 12, 2025.

Unlike at noon, when flights are generally more expensive, you can save up to 10% on flights from Dublin to Chicago O'Hare Intl Airport by exploring options for tickets in the morning.

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

Explore weekly flight availability from Dublin to O'Hare Intl. 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 June 12, 2025.

The most flights from DUB to ORD are scheduled on a Monday (17 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (16 on average).

Rainfall in O'Hare Intl by month

Plan your trip to O'Hare Intl by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Chicago O'Hare Intl Airport ranges from 1.7 - 4.9 inches per month. August is typically the wettest month, when rainfall can reach 4.9 in. January is typically the driest time to visit Chicago O'Hare Intl Airport when rainfall is around 1.7 in.

Temperature in O'Hare Intl by month

Plan your trip to O'Hare Intl by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Chicago O'Hare Intl Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 23.0 F).

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 June 12, 2025.
Read through reviews of airlines operating flights from Dublin to Chicago, such as Delta, KLM and Austrian Airlines. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,950 reviews

Food

7.3

Entertainment

7.9

Overall

8.0

Boarding

8.2

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,950 reviews
Delta
8.0
Very good
7,950 reviews

Food

7.3

Entertainment

7.9

Overall

8.0

Boarding

8.2

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
KLM
7.8
Good
1,358 reviews
Delta
8.0
Very good
7,950 reviews

Food

7.3

Entertainment

7.9

Overall

8.0

Boarding

8.2

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Austrian Airlines
7.6
Good
802 reviews
Delta
8.0
Very good
7,950 reviews

Food

7.3

Entertainment

7.9

Overall

8.0

Boarding

8.2

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Finnair
7.6
Good
1,290 reviews
Delta
8.0
Very good
7,950 reviews

Food

7.3

Entertainment

7.9

Overall

8.0

Boarding

8.2

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,790 reviews
Delta
8.0
Very good
7,950 reviews

Food

7.3

Entertainment

7.9

Overall

8.0

Boarding

8.2

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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 16 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.

  • 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 Scandinavian Airlines. Our recent data shows that you can find tickets from as low as $531 on this airline. Additional options worth looking into are Delta and Austrian Airlines, starting at $532 and $533 round-trip. Scandinavian Airlines is 11% 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 $420. TAP AIR PORTUGAL flights start at $429 while deals on WestJet start at $439 one-way.

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

    Consider American Airlines (82%), Aer Lingus (82%) or British Airways (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 $1,290 for a flight from Dublin to Chicago O'Hare Intl Airport. The cheapest flight overall is $444 while the most popular route, (Dublin - Chicago O'Hare Intl) is currently priced at $357.

  • 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, August is the cheapest month in which you can book a flight from Dublin to Chicago O'Hare Intl Airport (average of $245). Flying from Dublin to Chicago O'Hare Intl Airport in March is currently the most expensive (average of $321). 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
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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
Cork to O'Hare Intl flights
Milltown (Kerry) 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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
Aer LingusCheapest$408Average$579FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$667Average$775FlexibilityNo cancel feeOn-time69%

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