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Cheap flights from Chicago O'Hare Intl Airport to Dublin from £185

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 15/2. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — DUB
28 Feb — 7 Mar1
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

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 29 January 2026.

Tue 10/322:50
ORD
-
DUB
1 stop13h 20m
Lufthansa
Tue 17/305:00
DUB
-
ORD
1 stop14h 25m
Lufthansa
Deal found 29/1£312
Wed 25/221:50
ORD
-
DUB
1 stop13h 20m
Lufthansa
Wed 4/305:10
DUB
-
ORD
1 stop14h 15m
Lufthansa
Deal found 28/1£313
Tue 24/322:50
ORD
-
DUB
1 stop13h 20m
Lufthansa
Tue 31/312:25
DUB
-
ORD
1 stop13h 30m
Lufthansa
Deal found 28/1£316
Wed 25/219:20
ORD
-
DUB
1 stop17h 00m
Scandinavian Airlines
Wed 4/311:30
DUB
-
ORD
2 stops35h 15m
Scandinavian Airlines
Deal found 28/1£327
Sun 6/921:13
ORD
-
DUB
1 stop28h 07m
United Airlines
Wed 16/909:20
DUB
-
ORD
1 stop37h 18m
United Airlines
Deal found 27/1£331
Sun 1/1119:20
ORD
-
DUB
2 stops33h 25m
Scandinavian Airlines
Fri 6/1111:30
DUB
-
ORD
2 stops35h 15m
Scandinavian Airlines
Deal found 26/1£332
Mon 2/319:20
ORD
-
DUB
2 stops33h 25m
Scandinavian Airlines
Tue 10/311:30
DUB
-
ORD
2 stops35h 15m
Scandinavian Airlines
Deal found 28/1£333
Wed 25/207:00
ORD
-
DUB
1 stop21h 20m
United Airlines
Fri 6/309:00
DUB
-
ORD
1 stop30h 13m
United Airlines
Deal found 28/1£333
Sun 22/320:20
ORD
-
DUB
1 stop17h 00m
Scandinavian Airlines
Thu 26/311:30
DUB
-
ORD
2 stops35h 15m
Scandinavian Airlines
Deal found 27/1£334
Wed 1/416:20
ORD
-
DUB
1 stop12h 20m
United Airlines
Tue 5/509:50
DUB
-
ORD
2 stops34h 26m
United Airlines
Deal found 28/1£336

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 29 January 2026.

Round-trip from

£312

One-way from

£185

Popular in

June

Cheapest in

January

Average price

£377

Good round-trip deal

£580 or less

Good one-way deal

£236 or less
Lufthansa
  • Lufthansa
  • 10/3-17/3
  • 2 total stops
  • 27h 45m total
  • Chicago to Dublin
Search Deals
15/2
  • 15/2
  • 2 total stops
  • 33h 20m total
  • Chicago to Dublin
Search Deals
Highest demand for flights based on searches. 15% potential increase in price (£64 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
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 29 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 25/2

19:20-18:20

1 stop17h 00m

Dublin

Wed 4/3

11:30-16:45

2 stops35h 15m

£327

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Wed 8/4

08:45-10:40

1 stop19h 55m

Dublin

Tue 5/5

09:50-13:01

2 stops33h 11m

£336

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Mon 4/5

21:20-07:20

1 stop28h 00m

Dublin

Wed 13/5

09:20-07:58

2 stops28h 38m

£336

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Wed 29/4

20:15-09:45

Nonstop7h 30m

Dublin

Wed 6/5

09:50-14:45

1 stop34h 55m

£336

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Tue 10/3

14:30-10:20

1 stop14h 50m

Dublin

Tue 17/3

10:40-14:30

Nonstop8h 50m

£343

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Tue 24/3

14:30-10:20

1 stop14h 50m

Dublin

Tue 31/3

11:35-13:40

Nonstop8h 05m

£348

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Mon 23/3

15:40-07:30

1 stop10h 50m

Dublin

Wed 1/4

11:35-13:40

Nonstop8h 05m

£348

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Tue 10/3

14:10-09:20

1 stop14h 10m

Dublin

Tue 17/3

08:50-20:17

2 stops16h 27m

£352

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Thu 26/2

19:20-18:20

1 stop17h 00m

Dublin

Thu 5/3

11:30-16:55

2 stops35h 25m

£356

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Wed 8/4

16:50-12:40

1 stop13h 50m

Dublin

Tue 5/5

05:55-16:18

2 stops16h 23m

£357

Flights are sorted by cheapest return flights first.

Deals found on 27/1

Showing 1-10 of 20 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 23 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 £258). Flying from Chicago O'Hare Intl Airport to Dublin in June is currently the most expensive (average of £486). 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 29 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 29 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
1,443 reviews
Check prices

Overall

7.2

Boarding

7.4

Comfort

7.1

Food

6.6

Crew

8.0

Entertainment

6.9

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
1,443 reviews
Aer Lingus
7.2
Good
1,443 reviews
Check prices

Overall

7.2

Boarding

7.4

Comfort

7.1

Food

6.6

Crew

8.0

Entertainment

6.9

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 £336, Scandinavian Airlines can have you in Dublin from Chicago O'Hare Intl Airport in 7h 30m. 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 £349, 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 £432, our data indicates the cheapest price to be £197. The most popular route (Chicago O'Hare Intl - Dublin), is priced around £418.

  • 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 £486). 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
Portmarnock
Dundalk
Wicklow
Enniscorthy
Bray
Mullingar
Drogheda
Kildare
Malahide
Maynooth
Swords
Carlingford
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 29 January 2026.
AirlineCheapestAverageFlexibilityOn-time
Aer LingusCheapest£349Average£497FlexibilityNo 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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