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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 24/8. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — DUB
1 Sep — 8 Sep1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Chicago O'Hare Intl to Dublin are usually found in February or January, booked 83 days in advance, depart on a Tuesday or Friday and return on a Wednesday

Cheap 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 2 August 2026.

Wed 23/919:25
ORD
-
DUB
1 stop11h 50m
Icelandair
Wed 30/912:15
DUB
-
ORD
1 stop12h 00m
Icelandair
Deal found 30/7£452
Tue 20/1019:25
ORD
-
DUB
1 stop9h 40m
Icelandair
Thu 29/1011:30
DUB
-
ORD
1 stop11h 50m
Icelandair
Deal found 31/7£469
Sat 3/1019:25
ORD
-
DUB
1 stop9h 40m
Icelandair
Wed 14/1012:15
DUB
-
ORD
1 stop12h 00m
Icelandair
Deal found 30/7£472
Fri 16/1019:25
ORD
-
DUB
1 stop11h 50m
Icelandair
Thu 29/1011:30
DUB
-
ORD
1 stop11h 50m
Icelandair
Deal found 29/7£472
Fri 2/1022:25
ORD
-
DUB
1 stop30h 40m
Icelandair
Wed 14/1012:15
DUB
-
ORD
1 stop12h 00m
Icelandair
Deal found 30/7£473
Sun 18/1019:25
ORD
-
DUB
1 stop11h 50m
Icelandair
Thu 5/1111:30
DUB
-
ORD
1 stop11h 50m
Icelandair
Deal found 29/7£483
Mon 23/1118:30
ORD
-
DUB
1 stop9h 45m
Icelandair
Wed 2/1211:30
DUB
-
ORD
1 stop11h 50m
Icelandair
Deal found 28/7£487
Fri 13/1118:30
ORD
-
DUB
1 stop9h 45m
Icelandair
Mon 16/1111:30
DUB
-
ORD
1 stop11h 50m
Icelandair
Deal found 29/7£498
Wed 21/1019:25
ORD
-
DUB
1 stop11h 50m
Icelandair
Mon 2/1111:30
DUB
-
ORD
1 stop11h 50m
Icelandair
Deal found 31/7£502
Sat 5/1221:30
ORD
-
DUB
1 stop30h 50m
United Airlines
Fri 11/1209:00
DUB
-
ORD
1 stop30h 44m
United Airlines
Deal found 30/7£504
Mon 16/1107:00
ORD
-
DUB
1 stop20h 55m
United Airlines
Thu 26/1109:00
DUB
-
ORD
1 stop28h 54m
United Airlines
Deal found 1/8£505
Wed 12/818:00
ORD
-
DUB
1 stop34h 00m
TAP AIR PORTUGAL
Wed 26/810:45
DUB
-
ORD
1 stop31h 55m
TAP AIR PORTUGAL
Deal found 28/7£506

Find 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 2 August 2026.

Round-trip from

£452

One-way from

£223

Popular in

June

Cheapest in

February

Average price

£558

Good round-trip deal

£530 or less

Good one-way deal

£373 or less
Icelandair
  • Icelandair
  • 23/9-30/9
  • 2 total stops
  • 23h 50m total
  • Chicago to Dublin
Search Deals
25/8
  • 25/8
  • 2 total stops
  • 15h 15m total
  • Chicago to Dublin
Search Deals
Highest demand for flights based on searches. 18% potential increase in price (£87 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£14 potential savings vs. average return price).
Search Deals
Average for round-trip flights in August 2026
Search Deals
Price to beat on a round-trip flight from Chicago O'Hare Intl to Dublin.
Search Deals
Price to beat on a one-way flight from Chicago O'Hare Intl to Dublin.
Search Deals

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 2 August 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

Fly to

Route

Depart

Return

Price

Cheapest return flight

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Mon 2/11

18:30-08:10

Nonstop7h 40m

Dublin

Wed 11/11

11:45-20:05

1 stop14h 20m

£509
Fastest return journey

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Tue 19/1

18:30-08:10

Nonstop7h 40m

Dublin

Tue 26/1

10:40-13:20

Nonstop8h 40m

£513

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Tue 1/12

10:35-09:00

2 stops16h 25m

Dublin

Tue 15/12

08:50-18:44

2 stops15h 54m

£525

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Mon 14/12

18:04-10:20

1 stop10h 16m

Dublin

Fri 25/12

10:40-13:20

Nonstop8h 40m

£541

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Wed 23/9

05:00-11:10

1 stop24h 10m

Dublin

Wed 7/10

09:20-09:00

1 stop29h 40m

£544

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Mon 2/11

19:15-11:50

2 stops34h 35m

Dublin

Fri 13/11

18:55-16:45

2 stops27h 50m

£549

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Sun 25/10

20:15-19:35

2 stops18h 20m

Dublin

Mon 2/11

12:35-16:45

2 stops34h 10m

£549

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Tue 13/10

07:30-07:30

1 stop18h 00m

Dublin

Wed 28/10

10:40-14:20

Nonstop8h 40m

£550

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Mon 14/12

11:29-08:45

2 stops15h 16m

Dublin

Fri 25/12

08:50-08:43

2 stops29h 53m

£554

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Wed 23/9

12:16-07:30

1 stop13h 14m

Dublin

Wed 30/9

11:35-13:40

Nonstop8h 05m

£554

Flights are sorted by cheapest return flights first.

Deals found on 28/7

Showing 1-10 of 22 resultsSorted by cheapest first
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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?

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 82 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, February is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Dublin (average of £384). Flying from Chicago O'Hare Intl Airport to Dublin in June is currently the most expensive (average of £710). 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 2 August 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.

How much does it cost for a return flight from Chicago O'Hare Intl Airport to Dublin?

Airfare is typical for this route at the moment.

Chicago O'Hare Intl Airport to Dublin flights typically cost between £441 and £656 in September.
The cheapest return price found within the last 5 days was £452 on Icelandair (23 Sept–30 Sept).

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. 0 airlines 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 18 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 £514, United Airlines can have you in Dublin from Chicago O'Hare Intl Airport in 7h 40m. Airlines will cover a distance of 3661 mi. Both multi-stop and direct flights can be found to your destination and back.

  • 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 Air France (71%), Alaska Airlines (65%) or Finnair (65%) 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 £590, our data indicates the cheapest price to be £292. The most popular route (Chicago O'Hare Intl - Dublin), is priced around £467.

  • 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, February is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Dublin (average of £384). Flying from Chicago O'Hare Intl Airport to Dublin in June is currently the most expensive (average of £710). 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?

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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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