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Cheap flights from Chicago O'Hare Intl Airport to Dublin from £229

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 30/4. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — DUB
19 Apr — 26 Apr1
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 85 days in advance, depart on a Wednesday or Monday and return on a Tuesday

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 20 March 2026.

Fri 16/1019:15
ORD
-
DUB
1 stop17h 05m
Scandinavian Airlines
Sun 8/1110:10
DUB
-
ORD
1 stop12h 35m
Scandinavian Airlines
Deal found 17/3£357
Thu 8/1019:15
ORD
-
DUB
2 stops17h 50m
Scandinavian Airlines
Mon 19/1019:50
DUB
-
ORD
2 stops26h 20m
Scandinavian Airlines
Deal found 17/3£362
Wed 23/920:10
ORD
-
DUB
1 stop31h 25m
Turkish Airlines
Sun 27/910:40
DUB
-
ORD
1 stop29h 00m
Turkish Airlines
Deal found 17/3£368
Wed 28/1020:20
ORD
-
DUB
1 stop17h 00m
Scandinavian Airlines
Wed 4/1111:30
DUB
-
ORD
2 stops35h 15m
Scandinavian Airlines
Deal found 15/3£377
Wed 21/1019:15
ORD
-
DUB
1 stop17h 05m
Scandinavian Airlines
Sat 7/1110:10
DUB
-
ORD
1 stop12h 35m
Scandinavian Airlines
Deal found 17/3£380
Fri 23/1019:15
ORD
-
DUB
2 stops18h 00m
Scandinavian Airlines
Tue 27/1011:30
DUB
-
ORD
2 stops35h 15m
Scandinavian Airlines
Deal found 18/3£381
Wed 7/1019:15
ORD
-
DUB
2 stops33h 10m
Scandinavian Airlines
Mon 19/1019:50
DUB
-
ORD
2 stops26h 20m
Scandinavian Airlines
Deal found 17/3£382
Sat 19/920:10
ORD
-
DUB
1 stop20h 55m
Turkish Airlines
Sat 26/905:35
DUB
-
ORD
1 stop18h 40m
Turkish Airlines
Deal found 17/3£398
Thu 30/419:25
ORD
-
DUB
1 stop9h 40m
Icelandair
Thu 7/514:15
DUB
-
ORD
1 stop10h 00m
Icelandair
Deal found 16/3£401
Sun 8/1119:20
ORD
-
DUB
2 stops33h 25m
Scandinavian Airlines
Sat 14/1110:10
DUB
-
ORD
1 stop12h 35m
Scandinavian Airlines
Deal found 19/3£401
Sun 8/1120:15
ORD
-
DUB
1 stop13h 55m
TAP AIR PORTUGAL
Sat 14/1116:55
DUB
-
ORD
1 stop28h 05m
TAP AIR PORTUGAL
Deal found 16/3£402

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 20 March 2026.

Round-trip from

£401

One-way from

£229

Popular in

June

Cheapest in

January

Average price

£486

Good round-trip deal

£583 or less

Good one-way deal

£208 or less
Icelandair
  • Icelandair
  • 30/4-7/5
  • 2 total stops
  • 19h 40m total
  • Chicago to Dublin
Search Deals
30/4
  • 30/4
  • 2 total stops
  • 21h 45m total
  • Chicago to Dublin
Search Deals
Highest demand for flights based on searches. 14% potential increase in price (£64 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£11 potential savings vs. average return price).
Search Deals
Average for round-trip flights in March 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 20 March 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

Tue 11/8

18:18-10:40

1 stop10h 22m

Dublin

Mon 24/8

09:50-14:55

1 stop11h 05m

£444

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Mon 24/8

19:15-10:10

2 stops32h 55m

Dublin

Thu 10/9

19:50-16:10

2 stops26h 20m

£447

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Tue 1/9

18:21-08:15

2 stops31h 54m

Dublin

Tue 8/9

09:20-14:52

1 stop11h 32m

£447

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Mon 4/5

10:15-08:20

2 stops16h 05m

Dublin

Wed 13/5

05:55-18:05

2 stops18h 10m

£459

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Sat 2/5

17:04-16:40

2 stops17h 36m

Dublin

Sat 9/5

05:55-16:29

2 stops16h 34m

£462

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Mon 13/4

21:35-07:20

1 stop27h 45m

Dublin

Tue 21/4

09:50-12:17

2 stops32h 27m

£477

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Mon 4/5

17:00-09:40

1 stop10h 40m

Dublin

Mon 11/5

09:30-11:30

Nonstop8h 00m

£479

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Sat 2/5

11:45-10:45

1 stop17h 00m

Dublin

Sat 9/5

08:55-14:15

1 stop11h 20m

£484

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Tue 12/5

10:30-08:15

2 stops15h 45m

Dublin

Mon 25/5

10:00-16:29

1 stop12h 29m

£484

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Wed 15/7

06:30-10:40

1 stop22h 10m

Dublin

Wed 29/7

09:20-09:00

1 stop29h 40m

£484

Flights are sorted by cheapest return flights first.

Deals found on 15/3

Showing 1-10 of 21 resultsSorted by cheapest first
1
2
3

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 13 March 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 85 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 £258). Flying from Chicago O'Hare Intl Airport to Dublin in June is currently the most expensive (average of £492). 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 20 March 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?

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 20 March 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
1,480 reviews
Check prices

Food

6.6

Comfort

7.2

Entertainment

7.0

Boarding

7.4

Crew

8.1

Overall

7.2

Reviews

1 / 20
2.0
Mediocre

Wendy,Mar 2026

YYZ - DUB

I didn’t happen, my seat was given away because even though my bag was checked through to Dublin apparently the previous airline didn’t check me in. Even when I asked specifically at check in they said I and my luggage we both checked all the way through.
Aer Lingus
7.2
Good
1,480 reviews
Aer Lingus
7.2
Good
1,480 reviews
Check prices

Food

6.6

Comfort

7.2

Entertainment

7.0

Boarding

7.4

Crew

8.1

Overall

7.2

Reviews

1 / 20
2.0
Mediocre

Wendy,Mar 2026

YYZ - DUB

I didn’t happen, my seat was given away because even though my bag was checked through to Dublin apparently the previous airline didn’t check me in. Even when I asked specifically at check in they said I and my luggage we both checked all the way through.

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.

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

    For as low as £444, United Airlines can have you in Dublin from Chicago O'Hare Intl Airport in 10h 22m. 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 £361, 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 28% 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 Air Canada (68%), Austrian Airlines (68%) or Brussels Airlines (68%) 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 £500, our data indicates the cheapest price to be £139. The most popular route (Chicago O'Hare Intl - Dublin), is priced around £587.

  • 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 £258). Flying from Chicago O'Hare Intl Airport to Dublin in June is currently the most expensive (average of £492). 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
Arklow
Tullamore
Cavan
Portmarnock
Dundalk
Wicklow
Enniscorthy
Bray
Mullingar
Drogheda
Kildare
Malahide
Maynooth
Swords
Carlingford

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 20 March 2026.
AirlineCheapestAverageFlexibilityOn-time
Aer LingusCheapest£361Average£488FlexibilityNo 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?

Cheapflights makes it easy to find O'Hare Intl to Dublin flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from O'Hare Intl to Dublin?

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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