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Cheap flights from Chicago O'Hare Intl Airport to Dublin from £223

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 2/4. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — DUB
18 Feb — 25 Feb1
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 29 days in advance, depart on a Monday or Wednesday 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 19 January 2026.

Round-trip from

£315

One-way from

£223

Popular in

June

Cheapest in

January

Average price

£389

Good round-trip deal

£597 or less

Good one-way deal

£243 or less
United Airlines
  • United Airlines
  • 4/3-11/3
  • 3 total stops
  • 25h 32m total
  • Chicago to Dublin
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Aer Lingus
  • Aer Lingus
  • 2/4
  • Nonstop
  • 7h 25m total
  • Chicago to Dublin
Search Deals
Highest demand for flights based on searches. 15% potential increase in price (£69 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£11 potential savings vs. average return price).
Search Deals
Average for round-trip flights in January 2026
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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 19 January 2026.

Sun 23/820:20
ORD
-
DUB
Nonstop7h 25m
United Airlines
Wed 2/909:20
DUB
-
ORD
1 stop13h 37m
United Airlines
Deal found 19/1£315
Mon 2/318:30
ORD
-
DUB
1 stop9h 45m
Icelandair
Tue 31/314:15
DUB
-
ORD
1 stop10h 00m
Icelandair
Deal found 16/1£315
Sun 1/321:45
ORD
-
DUB
1 stop11h 20m
British Airways
Wed 1/411:10
DUB
-
ORD
1 stop12h 25m
British Airways
Deal found 16/1£317
Mon 19/108:00
ORD
-
DUB
2 stops17h 30m
United Airlines
Tue 27/109:30
DUB
-
ORD
1 stop12h 36m
United Airlines
Deal found 18/1£318
Sun 18/112:38
ORD
-
DUB
2 stops12h 52m
United Airlines
Tue 27/109:30
DUB
-
ORD
1 stop12h 36m
United Airlines
Deal found 17/1£318
Wed 2/908:45
ORD
-
DUB
1 stop17h 00m
United Airlines
Wed 9/911:35
DUB
-
ORD
Nonstop8h 05m
United Airlines
Deal found 19/1£319
Sun 22/308:00
ORD
-
DUB
1 stop17h 10m
United Airlines
Tue 31/309:50
DUB
-
ORD
2 stops32h 27m
United Airlines
Deal found 18/1£321
Thu 5/218:30
ORD
-
DUB
1 stop9h 45m
Icelandair
Mon 9/211:30
DUB
-
ORD
1 stop11h 50m
Icelandair
Deal found 19/1£321
Mon 16/311:40
ORD
-
DUB
2 stops16h 30m
British Airways
Tue 24/308:45
DUB
-
ORD
2 stops17h 45m
British Airways
Deal found 18/1£324
Tue 3/307:25
ORD
-
DUB
2 stops17h 45m
United Airlines
Tue 10/313:35
DUB
-
ORD
1 stop11h 40m
United Airlines
Deal found 17/1£327
Wed 21/111:15
ORD
-
DUB
2 stops14h 15m
United Airlines
Fri 30/109:30
DUB
-
ORD
2 stops13h 19m
United Airlines
Deal found 19/1£328
Sat 15/820:40
ORD
-
DUB
1 stop29h 35m
United Airlines
Fri 28/808:50
DUB
-
ORD
1 stop13h 47m
United Airlines
Deal found 18/1£330

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 19 January 2026.
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 4/3

15:50-07:30

1 stop9h 40m

Dublin

Wed 11/3

08:00-18:52

2 stops15h 52m

£315

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Wed 1/4

14:25-07:20

1 stop10h 55m

Dublin

Wed 8/4

09:50-22:03

1 stop18h 13m

£318

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Fri 6/2

18:30-10:15

1 stop9h 45m

Dublin

Mon 9/2

11:30-17:20

1 stop11h 50m

£321

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Tue 3/3

07:25-07:10

2 stops17h 45m

Dublin

Tue 10/3

13:35-20:15

1 stop11h 40m

£327

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Tue 3/3

18:35-08:10

Nonstop7h 35m

Dublin

Thu 2/4

09:50-15:10

1 stop11h 20m

£352

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Fri 6/3

14:35-07:30

1 stop10h 55m

Dublin

Wed 11/3

08:00-18:40

1 stop15h 40m

£352

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Fri 10/4

22:35-19:35

1 stop15h 00m

Dublin

Fri 8/5

06:30-12:30

1 stop12h 00m

£354

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Thu 16/4

20:15-09:45

Nonstop7h 30m

Dublin

Tue 21/4

11:35-13:40

Nonstop8h 05m

£354

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Sun 12/4

08:55-10:45

2 stops19h 50m

Dublin

Fri 24/4

08:55-14:15

1 stop11h 20m

£359

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Thu 29/1

19:10-19:35

2 stops18h 25m

Dublin

Sat 7/2

10:10-16:45

1 stop12h 35m

£366

Flights are sorted by cheapest return flights first.

Deals found on 19/1

Showing 1-10 of 19 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 16 January 2026.

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 29 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 £264). Flying from Chicago O'Hare Intl Airport to Dublin in June is currently the most expensive (average of £501). 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 19 January 2026.

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.

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 19 January 2026.
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
1,435 reviews
Check prices

Entertainment

6.9

Boarding

7.4

Overall

7.2

Comfort

7.1

Crew

8.0

Food

6.6

Reviews

1 / 20
4.0
Okay

Catherine,Dec 2025

AGP - DUB

Flight out to Malaga was terrific on A330 but flight back on A320 no where as good. Seat was uncomfortable, sweet wrappers & toilet paper on the floor at my seat. Rubbish in holder of seat in front. All unpleasant. Flight itself was fine & crew otherwise very good.
Aer Lingus
7.2
Good
1,435 reviews
Aer Lingus
7.2
Good
1,435 reviews
Check prices

Entertainment

6.9

Boarding

7.4

Overall

7.2

Comfort

7.1

Crew

8.0

Food

6.6

Reviews

1 / 20
4.0
Okay

Catherine,Dec 2025

AGP - DUB

Flight out to Malaga was terrific on A330 but flight back on A320 no where as good. Seat was uncomfortable, sweet wrappers & toilet paper on the floor at my seat. Rubbish in holder of seat in front. All unpleasant. Flight itself was fine & crew otherwise very good.

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 8 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 £315, United Airlines can have you in Dublin from Chicago O'Hare Intl Airport in 9h 40m. 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 £359, 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 29% 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 American Airlines (75%), Aer Lingus (75%) or Iberia (75%) 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 £434, our data indicates the cheapest price to be £204. The most popular route (Chicago O'Hare Intl - Dublin), is priced around £280.

  • 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 £264). Flying from Chicago O'Hare Intl Airport to Dublin in June is currently the most expensive (average of £501). 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
Tullamore
Arklow
Cavan
Malahide
Portmarnock
Dundalk
Wicklow
Enniscorthy
Bray
Mullingar
Drogheda
Kildare
Maynooth
Carlingford
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 19 January 2026.
AirlineCheapestAverageFlexibilityOn-time
Aer LingusCheapest£359Average£512FlexibilityNo 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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