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Cheap flights from Chicago O'Hare Intl Airport to Dublin from £202

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 23/11. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — DUB
4 Dec — 11 Dec1
1 adult
1 adult, Economy, 0 bags

Cheapflights Tip: The best prices from Chicago O'Hare Intl to Dublin are usually found in January or February, booked 20 days in advance, depart on a Monday or Tuesday and return on a Wednesday

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 4 November 2025.

Round-trip from

£355

One-way from

£202

Popular in

June

Cheapest in

January

Average price

£470

Good round-trip deal

£568 or less

Good one-way deal

£314 or less
SWISS
  • SWISS
  • 18/11-2/12
  • 1 total stop
  • 41h 00m total
  • Chicago to Dublin
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23/11
  • 23/11
  • 2 total stops
  • 22h 00m total
  • Chicago to Dublin
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Highest demand for flights based on searches. 15% potential increase in price (£75 potential increase over avg. return price).
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Cheapest flight prices on average. 2% potential price decrease (£12 potential savings vs. average return price).
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Average for round-trip flights in November 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

Enter your travel dates to find the best prices.

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 4 November 2025.

Mon 10/1118:35ORD - DUB
Nonstop7h 35mMultiple Airlines
Mon 17/1113:20DUB - ORD
1 stop33h 00mMultiple Airlines
Deal found 3/11£355
Sun 9/1118:35ORD - DUB
Nonstop7h 35mUnited Airlines
Tue 18/1110:40DUB - ORD
Nonstop8h 50mUnited Airlines
Deal found 3/11£355
Tue 9/1218:35ORD - DUB
Nonstop7h 35mUnited Airlines
Thu 18/1210:40DUB - ORD
Nonstop8h 50mUnited Airlines
Deal found 3/11£357
Sat 15/1121:20ORD - DUB
1 stop27h 50mUnited Airlines
Wed 3/1209:00DUB - ORD
1 stop12h 10mUnited Airlines
Deal found 3/11£358
Wed 12/1107:15ORD - DUB
1 stop18h 15mMultiple Airlines
Mon 24/1118:35DUB - ORD
1 stop27h 45mMultiple Airlines
Deal found 3/11£359
Mon 8/1213:36ORD - DUB
1 stop11h 54mUnited Airlines
Tue 23/1210:40DUB - ORD
Nonstop8h 50mUnited Airlines
Deal found 2/11£360
Sat 6/1220:15ORD - DUB
1 stop28h 55mUnited Airlines
Tue 16/1210:40DUB - ORD
Nonstop8h 50mUnited Airlines
Deal found 3/11£362
Wed 5/1118:35ORD - DUB
Nonstop7h 35mUnited Airlines
Thu 13/1109:30DUB - ORD
1 stop12h 54mUnited Airlines
Deal found 3/11£365
Thu 4/1216:55ORD - DUB
1 stop9h 45mMultiple Airlines
Thu 12/208:50DUB - ORD
1 stop14h 10mMultiple Airlines
Deal found 1/11£366
Thu 11/1210:35ORD - DUB
1 stop16h 45mDelta
Fri 19/1211:30DUB - ORD
1 stop16h 20mDelta
Deal found 2/11£368

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 4 November 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

Wed 3/12

18:35-08:10

Nonstop7h 35m

Dublin

Wed 10/12

10:40-13:30

Nonstop8h 50m

£357

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Thu 4/12

07:10-11:45

2 stops22h 35m

Dublin

Thu 12/2

11:30-16:45

2 stops35h 15m

£357

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Tue 9/12

18:35-08:10

Nonstop7h 35m

Dublin

Thu 18/12

10:40-13:30

Nonstop8h 50m

£357

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Mon 30/3

16:00-10:20

1 stop12h 20m

Dublin

Wed 8/4

09:50-15:10

1 stop11h 20m

£359

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Sat 6/12

20:15-07:10

1 stop28h 55m

Dublin

Tue 16/12

10:40-13:30

Nonstop8h 50m

£362

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Wed 22/4

18:04-10:20

1 stop10h 16m

Dublin

Thu 30/4

11:35-13:40

Nonstop8h 05m

£364

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Fri 14/11

19:20-11:20

2 stops34h 00m

Dublin

Fri 21/11

18:55-16:45

2 stops27h 50m

£368

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Fri 20/2

19:20-10:10

2 stops32h 50m

Dublin

Tue 24/2

11:30-16:45

2 stops35h 15m

£370

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Tue 2/12

13:20-08:45

2 stops13h 25m

Dublin

Sun 7/12

10:45-17:46

1 stop13h 01m

£371

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Sun 28/12

06:00-09:55

1 stop21h 55m

Dublin

Sat 10/1

09:00-08:05

2 stops29h 05m

£385

Flights are sorted by cheapest return flights first.

Deals found on 2/11

Showing 1-10 of 22 results
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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 31 October 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 20 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 £288). Flying from Chicago O'Hare Intl Airport to Dublin in June is currently the most expensive (average of £516). 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 4 November 2025.

When flying from Chicago O'Hare Intl Airport to Dublin, 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 for a return flight from Chicago O'Hare Intl Airport to Dublin?

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 4 November 2025.
Check out reviews from past customers who have flown with Aer Lingus from Chicago O'Hare Intl Airport to Dublin to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Aer Lingus
7.2
Good
1,365 reviews
Check prices

Boarding

7.4

Overall

7.2

Food

6.6

Comfort

7.1

Entertainment

6.9

Crew

8.0

Reviews

1 / 20
6.0
Good

David,Oct 2025

LIS - DUB

Two issues... 1. The Aer Lingus check-in counter in Lisbon did not open until 90 minutes prior to the flight. Huge line of customers waiting to check-in and very time consuming. Plus, having to clear security, passport control, and take the shuttle bus to the plane takes a long time. Consequently, the flight was delayed due to passengers not being able to get to the gate on time. I showed up four hours early but had to wait for over two hours just for the check-in counter to open. Many passengers complaining about the same issue. VERY STRESSFUL! 2. During the flight one of the flight attendants (Glen) was quite rude to a parent of a non-verbal autistic child. At one point I heard him say in a nasty tone, "You have three seconds to put your bag under the seat or I will take it and check it. 3, 2, 1!" I did not speak to the flight attendant because I was afraid he would kick me off the flight. Very unpleasant to everyone before take off also while instructing them to put the seats up and bags under. A little interpersonal communication training could help this man. Other than those two issues, the flight was fine.
Aer Lingus
7.2
Good
1,365 reviews
Aer Lingus
7.2
Good
1,365 reviews
Check prices

Boarding

7.4

Overall

7.2

Food

6.6

Comfort

7.1

Entertainment

6.9

Crew

8.0

Reviews

1 / 20
6.0
Good

David,Oct 2025

LIS - DUB

Two issues... 1. The Aer Lingus check-in counter in Lisbon did not open until 90 minutes prior to the flight. Huge line of customers waiting to check-in and very time consuming. Plus, having to clear security, passport control, and take the shuttle bus to the plane takes a long time. Consequently, the flight was delayed due to passengers not being able to get to the gate on time. I showed up four hours early but had to wait for over two hours just for the check-in counter to open. Many passengers complaining about the same issue. VERY STRESSFUL! 2. During the flight one of the flight attendants (Glen) was quite rude to a parent of a non-verbal autistic child. At one point I heard him say in a nasty tone, "You have three seconds to put your bag under the seat or I will take it and check it. 3, 2, 1!" I did not speak to the flight attendant because I was afraid he would kick me off the flight. Very unpleasant to everyone before take off also while instructing them to put the seats up and bags under. A little interpersonal communication training could help this man. Other than those two issues, the flight was fine.

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 14 inbound flights from Chicago O'Hare Intl per day.

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

    For as low as £357, United Airlines can have you in Dublin from Chicago O'Hare Intl Airport in 7h 35m. Airlines will cover a distance of 3661 mi. Both multi-stop and direct flights can be found to your destination and back.

  • What is the cheapest airline to fly from Chicago O'Hare Intl Airport to Dublin round-trip?

    Currently priced at £366, Aer Lingus will fly you from Chicago O'Hare Intl Airport to Dublin and back. In addition to Aer Lingus, many other airlines offer competitively priced options for your trip. You may be able to fly from Chicago O'Hare Intl Airport to Dublin for 31% less than the average price by searching for this airline.

  • 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 Alaska Airlines (79%), Finnair (79%) 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 £473, our data indicates the cheapest price to be £308. The most popular route (Chicago O'Hare Intl - Dublin), is priced around £402.

  • 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 £288). Flying from Chicago O'Hare Intl Airport to Dublin in June is currently the most expensive (average of £516). 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 Dublin?

Book flights to Dublin if you plan to visit one of these locations
Athlone
Wicklow
Tullamore
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Drogheda
Malahide
Portmarnock
Dundalk
Enniscorthy
Mullingar
Bray
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Kildare
Carlingford
Maynooth
Swords
Naas

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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 4 November 2025.
AirlineCheapestAverageFlexibilityOn-time
Aer LingusCheapest£366Average£510FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights

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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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