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Cheap flights from Chicago O'Hare Intl Airport to Dublin from £299

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 5/5. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — DUB
20 Apr — 27 Apr1
1 adult

Cheapflights Tip: The best prices from Chicago O'Hare Intl to Dublin are usually found in November or January, booked 64 days in advance, depart on a Monday or Saturday and return on a Tuesday

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 15 April 2025.

Round-trip from

£403

One-way from

£299

Popular in

June

Cheapest in

November

Average price

£555

Good round-trip deal

£481 or less

Good one-way deal

£411 or less
United Airlines
  • United Airlines
  • 15/8-22/8
  • 3 total stops
  • 35h 12m total
  • Chicago to Dublin
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United Airlines
  • United Airlines
  • 5/5
  • 1 total stop
  • 30h 09m total
  • Chicago to Dublin
Search Deals
Highest demand for flights based on searches. 20% potential increase in price (£105 potential increase over avg. return price).
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Cheapest flight prices on average. 3% potential price decrease (£15 potential savings vs. average return price).
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Average for round-trip flights in April 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 15 April 2025.

Tue 14/1019:15ORD - DUB
2 stops34h 15mScandinavian Airlines
Wed 22/1011:45DUB - ORD
2 stops34h 25mScandinavian Airlines
Deal found 15/4£376
Wed 15/1020:20ORD - DUB
Nonstop7h 25mUnited Airlines
Wed 22/1009:20DUB - ORD
1 stop16h 44mUnited Airlines
Deal found 15/4£388
Sun 20/720:15ORD - DUB
Nonstop7h 30mMultiple Airlines
Thu 31/709:20DUB - ORD
1 stop11h 31mMultiple Airlines
Deal found 14/4£444
Wed 20/819:05ORD - DUB
1 stop16h 45mSWISS
Sun 31/819:50DUB - ORD
2 stops50h 05mSWISS
Deal found 14/4£449
Tue 27/514:15ORD - DUB
1 stop14h 30mKLM
Tue 10/610:00DUB - ORD
1 stop12h 18mKLM
Deal found 14/4£454
Mon 28/415:20ORD - DUB
1 stop13h 25mDelta
Mon 26/511:10DUB - ORD
1 stop33h 00mDelta
Deal found 15/4£455
Thu 16/1021:40ORD - DUB
1 stop13h 15mLufthansa
Mon 27/1018:00DUB - ORD
1 stop30h 25mLufthansa
Deal found 13/4£464
Mon 16/613:28ORD - DUB
1 stop14h 17mFinnair
Thu 25/913:45DUB - ORD
Nonstop8h 00mFinnair
Deal found 14/4£465
Fri 26/913:35ORD - DUB
1 stop12h 45mJetBlue
Fri 3/1011:30DUB - ORD
1 stop15h 24mJetBlue
Deal found 13/4£476
Fri 8/819:25ORD - DUB
1 stop11h 50mIcelandair
Sun 17/812:15DUB - ORD
1 stop12h 00mIcelandair
Deal found 14/4£479
Wed 30/411:15ORD - DUB
2 stops17h 30mAir France
Thu 15/510:00DUB - ORD
2 stops19h 58mAir France
Deal found 14/4£496
Tue 9/916:20ORD - DUB
2 stops23h 55mAustrian Airlines
Sat 20/917:40DUB - ORD
2 stops25h 40mAustrian Airlines
Deal found 15/4£518

Cheapflights Fare Finder

Customise 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 858,174 searches. Data last updated 15 April 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 15/8

10:50-07:10

1 stop14h 20m

Dublin

Fri 22/8

08:50-23:42

2 stops20h 52m

£403

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Tue 19/8

19:15-19:25

2 stops18h 10m

Dublin

Mon 1/9

19:05-16:10

1 stop27h 05m

£436

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Wed 30/4

13:13-09:00

1 stop13h 47m

Dublin

Mon 5/5

11:30-22:22

1 stop16h 52m

£438

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Sun 20/7

20:15-09:45

Nonstop7h 30m

Dublin

Thu 31/7

09:20-14:51

1 stop11h 31m

£444

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Wed 20/8

19:05-17:50

1 stop16h 45m

Dublin

Sun 31/8

19:50-15:55

2 stops50h 05m

£449

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Tue 27/5

14:15-10:45

1 stop14h 30m

Dublin

Tue 10/6

10:00-16:18

1 stop12h 18m

£454

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Mon 28/4

15:20-10:45

1 stop13h 25m

Dublin

Mon 26/5

11:10-14:10

1 stop33h 00m

£455

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Mon 16/6

13:28-09:45

1 stop14h 17m

Dublin

Thu 25/9

13:45-15:45

Nonstop8h 00m

£465

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Thu 11/9

22:30-16:55

1 stop12h 25m

Dublin

Thu 25/9

05:55-12:55

1 stop13h 00m

£466

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Fri 8/8

19:25-13:15

1 stop11h 50m

Dublin

Sun 17/8

12:15-18:15

1 stop12h 00m

£479

Flights are sorted by cheapest return flights first.

Deals found on 13/4

Showing 1-10 of 18 results
1
2

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 return 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 return flight from O'Hare Intl to Dublin. Price data was last updated on 11 April 2025.

To ensure you get the cheapest price possible for a flight from Chicago O'Hare Intl Airport to Dublin, you should look to book at least 64 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 Chicago O'Hare Intl Airport to Dublin?

Currently, January is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Dublin (average of £71). Flying from Chicago O'Hare Intl Airport to Dublin in May is currently the most expensive (average of £99). 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 15 April 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 3% on the cost of your flight, compared to a flight at midday.

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 15 April 2025.

The most flights from ORD to DUB are scheduled on a Monday (11 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (11 on average).

Rainfall in Dublin by month

Plan your trip to Dublin by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Dublin ranges from 49.0 - 79.0 inches per month. October is typically the wettest month, when rainfall can reach 79.0 mm. February is typically the driest time to visit Dublin when rainfall is around 49.0 mm.

Temperature in Dublin by month

Plan your trip to Dublin by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Dublin, 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 16.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 5.0 C).

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 15 April 2025.
To help decide which airline to fly from Chicago to Dublin, see what other customers have to say about Delta, KLM and Finnair. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very Good
7,916 reviews
Check prices

Entertainment

7.9

Food

7.3

Boarding

8.2

Overall

8.0

Crew

8.5

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
8.0
Very Good
7,916 reviews
Delta
8.0
Very Good
7,916 reviews
Check prices

Entertainment

7.9

Food

7.3

Boarding

8.2

Overall

8.0

Crew

8.5

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
KLM
7.8
Good
1,323 reviews
Delta
8.0
Very Good
7,916 reviews
Check prices

Entertainment

7.9

Food

7.3

Boarding

8.2

Overall

8.0

Crew

8.5

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Finnair
7.6
Good
1,269 reviews
Delta
8.0
Very Good
7,916 reviews
Check prices

Entertainment

7.9

Food

7.3

Boarding

8.2

Overall

8.0

Crew

8.5

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Austrian Airlines
7.6
Good
775 reviews
Delta
8.0
Very Good
7,916 reviews
Check prices

Entertainment

7.9

Food

7.3

Boarding

8.2

Overall

8.0

Crew

8.5

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Air France
7.5
Good
1,435 reviews
Delta
8.0
Very Good
7,916 reviews
Check prices

Entertainment

7.9

Food

7.3

Boarding

8.2

Overall

8.0

Crew

8.5

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

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?

    Dublin (DUB), located 5.7 mi from the city center, is the airport you fly into when you book flights from Chicago O'Hare Intl to Dublin. 1 airline have flights to Dublin from Chicago O'Hare Intl on a regular basis. Booking flights from Chicago O'Hare Intl to Dublin should not be difficult; the airport handles an average of 11 inbound flights from Chicago O'Hare Intl per day.

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

    Currently priced at £403, United Airlines will fly you from Chicago O'Hare Intl Airport to Dublin and back. In addition to United Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Scandinavian Airlines and JetBlue - these airlines can fly you to your destination from £436 and £438, respectively. You may be able to fly from Chicago O'Hare Intl Airport to Dublin for 24% less than the average price by searching for these airlines.

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

    To fly one-way, consider booking your trip with United Airlines, which is currently one of the cheapest options available, starting at £299. WestJet flights start at £316 while deals on JetBlue start at £356 one-way.

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

    No one likes to see their flight delayed. When booking a flight from Chicago O'Hare Intl Airport to Dublin consider choosing Aer Lingus (77%), American Airlines (77%) or British Airways (77%) as they are the most reliable in getting you off to your destination on time.

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

    Looking for the cheapest flight from Chicago O'Hare Intl Airport to Dublin? While on average our users pay £1,850, our data indicates the cheapest price to be £366. The most popular route (Chicago O'Hare Intl - Dublin), is priced around £395.

  • 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 holiday 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, January is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Dublin (average of £71). Flying from Chicago O'Hare Intl Airport to Dublin in May is currently the most expensive (average of £99). 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

Travelling 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
Wicklow
Bray
Drogheda
Tullamore
Malahide
Portmarnock
Athlone
Carlingford
Cavan
Kildare
Mullingar
Enniscorthy
Dundalk
Arklow
Maynooth
Swords
Castleknock
Naas

Browse thousands of different options on Cheapflights for your next trip

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Top airline flying from O'Hare Intl to Dublin

Discover the top airline 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 858,174 searches. Data last updated 15 April 2025.
AirlineCheapestAverageFlexibilityOn-time
Aer LingusCheapest£365Average£555FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights

Fly with Cheapflights

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How does Cheapflights help users find flights from O'Hare Intl to Dublin?

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It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from O'Hare Intl to Dublin.

Can Cheapflights find flights from O'Hare Intl to Dublin with no change fees?

Yes! Cheapflights helps users easily find flights from O'Hare Intl to Dublin with no change fees.

Can Cheapflights notify me if prices for flights from O'Hare Intl to Dublin become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Dublin from O'Hare Intl today and book when prices fit your budget.

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