Prepare for long walks between terminals at ORD. Know your airline's terminal to avoid unnecessary delays.
$220+ Cheap flights from O'Hare Intl (ORD) to Dublin (DUB)
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 1/12. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — DUB
Dec 26 — Jan 21
1 adult, Economy
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Find cheap flights from O'Hare Intl to Dublin with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.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 Tuesday or Monday and return on a Sunday
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 November 26, 2025.
Most accurate provider | CheapOair 3 stars |
|---|---|
Most trusted provider | CheapOair 3 stars |
Round-trip from | $435 (oojo) |
One-way from | $220 (Kiwi.com) |
Popular in | June |
Cheapest in | January |
Average price | $638 |
Good round-trip deal | $591 or less |
Good one-way deal | $421 or less |
Find flight deals from O'Hare Intl to Dublin
Cheapest flights from O'Hare Intl to DublinExplore 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 November 26, 2025.
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 November 26, 2025.
This Delta deal was found by Cheapflights users on 11/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/22:30 pmORD - DUB
2 stops12h 50mDelta
Tue 12/910:45 amDUB - ORD
2 stops17h 58mDelta
Deal found 11/25![Delta logo]()
$438
This Kiwi.com deal was found by Cheapflights users on 11/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/26:30 pmORD - DUB
1 stop9h 45mIcelandair
Tue 12/911:30 amDUB - ORD
1 stop11h 50mIcelandair
Deal found 11/25![Icelandair logo]()
$442
This oojo deal was found by Cheapflights users on 11/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/58:15 pmORD - DUB
1 stop21h 05mTAP AIR PORTUGAL
Tue 12/94:55 pmDUB - ORD
1 stop28h 05mTAP AIR PORTUGAL
Deal found 11/24![TAP AIR PORTUGAL logo]()
$445
This oojo deal was found by Cheapflights users on 11/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/288:15 pmORD - DUB
1 stop21h 05mTAP AIR PORTUGAL
Thu 12/44:25 amDUB - ORD
1 stop17h 00mTAP AIR PORTUGAL
Deal found 11/24![TAP AIR PORTUGAL logo]()
$448
This United Airlines deal was found by Cheapflights users on 11/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/286:35 pmORD - DUB
Nonstop7h 35mUnited Airlines
Wed 1/149:00 amDUB - ORD
2 stops35h 49mUnited Airlines
Deal found 11/24![United Airlines logo]()
$451
This Delta deal was found by Cheapflights users on 11/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/73:50 pmORD - DUB
1 stop11h 30mDelta
Tue 12/168:45 amDUB - ORD
2 stops19h 02mDelta
Deal found 11/26![Delta logo]()
$452
This Delta deal was found by Cheapflights users on 11/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/310:36 amORD - DUB
2 stops15h 14mDelta
Wed 12/109:45 amDUB - ORD
1 stop13h 03mDelta
Deal found 11/25![Delta logo]()
$453
This oojo deal was found by Cheapflights users on 11/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/287:20 pmORD - DUB
1 stop32h 05mScandinavian Airlines
Wed 12/37:05 pmDUB - ORD
1 stop27h 40mScandinavian Airlines
Deal found 11/24![Scandinavian Airlines logo]()
$455
This Delta deal was found by Cheapflights users on 11/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/34:25 pmORD - DUB
1 stop17h 55mDelta
Fri 12/1211:30 amDUB - ORD
2 stops17h 00mDelta
Deal found 11/25![Delta logo]()
$456
This Delta deal was found by Cheapflights users on 11/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/34:25 pmORD - DUB
1 stop14h 15mDelta
Tue 12/910:45 amDUB - ORD
1 stop16h 54mDelta
Deal found 11/25![Delta logo]()
$459
Cheapflights Fare Finder
Customize 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 2,558,603 searches. Data last updated November 26, 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
Sat 1/24
7:20 pm-11:45 am
1 stop34h 25m
Dublin
Fri 1/30
7:05 pm-4:45 pm
1 stop27h 40m
$443
ChicagoDublin
ORD - DUB
ORDDUB
Chicago O'Hare Intl
Mon 1/19
12:38 pm-7:30 am
2 stops12h 52m
Dublin
Wed 1/28
9:00 am-3:10 pm
1 stop12h 10m
$463
ChicagoDublin
ORD - DUB
ORDDUB
Chicago O'Hare Intl
Sun 12/28
6:35 pm-8:10 am
Nonstop7h 35m
Dublin
Fri 1/16
9:00 am-6:50 pm
1 stop15h 50m
$464
ChicagoDublin
ORD - DUB
ORDDUB
Chicago O'Hare Intl
Mon 2/23
6:35 pm-8:10 am
Nonstop7h 35m
Dublin
Wed 3/11
8:00 am-3:10 pm
1 stop12h 10m
$464
ChicagoDublin
ORD - DUB
ORDDUB
Chicago O'Hare Intl
Mon 1/19
7:10 am-8:45 am
1 stop19h 35m
Dublin
Fri 1/30
5:55 am-2:20 pm
1 stop14h 25m
$466
ChicagoDublin
ORD - DUB
ORDDUB
Chicago O'Hare Intl
Sat 1/24
7:20 pm-11:45 am
2 stops34h 25m
Dublin
Sun 2/1
10:10 am-4:55 pm
1 stop12h 45m
$467
ChicagoDublin
ORD - DUB
ORDDUB
Chicago O'Hare Intl
Tue 2/24
6:35 pm-8:10 am
Nonstop7h 35m
Dublin
Thu 3/5
10:40 am-1:30 pm
Nonstop8h 50m
$469
ChicagoDublin
ORD - DUB
ORDDUB
Chicago O'Hare Intl
Tue 1/20
6:35 pm-8:10 am
Nonstop7h 35m
Dublin
Tue 1/27
10:40 am-1:30 pm
Nonstop8h 50m
$469
ChicagoDublin
ORD - DUB
ORDDUB
Chicago O'Hare Intl
Sun 2/22
6:35 pm-8:10 am
Nonstop7h 35m
Dublin
Wed 3/11
10:40 am-2:30 pm
Nonstop8h 50m
$469
ChicagoDublin
ORD - DUB
ORDDUB
Chicago O'Hare Intl
Tue 12/30
6:35 pm-8:10 am
Nonstop7h 35m
Dublin
Thu 1/15
10:40 am-1:30 pm
Nonstop8h 50m
$469
Showing 1-10 of 22 results
Compare providers for flights from O'Hare Intl to Dublin
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from O'Hare Intl to Dublin in November.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*2 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Chicago O'Hare Intl Airport-Dublin flights, users find the pricing of CheapOair to be most consistent on Cheapflights vs. CheapOair Users can find the same prices on Chicago O'Hare Intl Airport-Dublin flight deals on Cheapflights vs. CheapOair >95% of the time. Price accuracy is based on data collected from Chicago O'Hare Intl Airport-Dublin flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Chicago O'Hare Intl Airport-Dublin flights, Cheapflights users trust CheapOair the most. CheapOair has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Chicago O'Hare Intl Airport-Dublin flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
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 round-trip 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
Prices
Airlines
Delays
More
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 round-trip flight from O'Hare Intl to Dublin. Price data was last updated on November 21, 2025.
Booking 20 days in advance of your planned departure date is, on average, the best time to get cheap flights from Chicago O'Hare Intl Airport to Dublin. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
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 $377). Flying from Chicago O'Hare Intl Airport to Dublin in June is currently the most expensive (average of $678). 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 November 26, 2025.
It’s optimal to fly from Chicago O'Hare Intl Airport to Dublin in the morning. By choosing this option you can save up to 11% on the cost of your flight, compared to a flight in the afternoon.
What is the cheapest day to fly from Chicago O'Hare Intl Airport to Dublin?
Use this chart to determine the cheapest time to fly round-trip from O'Hare Intl to Dublin. Price data was last updated on December 16, 2024.
Travelers seeking maximum savings on their Chicago O'Hare Intl Airport to Dublin flight should consider departing on Wednesday mornings when fares are most often at their lowest. Friday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.
How often are flights from Chicago to Dublin delayed?
About 20% of weekly flights between Chicago and Dublin have experienced delays in the past year, with the average delay time being 155 minutes.
What is the most punctual flight time for Chicago to Dublin flights?
Historically, flights departing in the early afternoon are less likely to be delayed, whereas flights leaving in the evening tend to experience delays more often.
What day of the week experiences the fewest flight delays on this route?
Tuesday tends to have the lowest number of delays on this route, whereas Wednesday has historically faced a higher average of delays compared to other days of the week.
Which airline has the best punctuality record on Chicago to Dublin flights?
Over the last year, Aer Lingus have had the lowest number of delays on this route, with just 18% of flights being delayed.
What’s the top layover airport for flights from Chicago O'Hare Intl Airport to Dublin?
Share of 1-stop round-trip flights from Chicago O'Hare Intl Airport to Dublin chosen by Cheapflights users in the past 12 months, using the same layover each way.
London (LHR) – chosen by Cheapflights users on 60% of 1-stop itineraries from Chicago O'Hare Intl Airport to Dublin on Cheapflights.
What’s the cheapest layover airport for flights from Chicago O'Hare Intl Airport to Dublin?
Average round-trip fare for 1-stop flights from Chicago O'Hare Intl Airport to Dublin, chosen by Cheapflights users in the past 12 months, with the same layover each way.
Copenhagen (CPH) is the most affordable 1-stop option, with an average round-trip price of $506.
What’s the fastest layover option from Chicago O'Hare Intl Airport to Dublin?
Shortest average travel time for 1-stop one-way flights from Chicago O'Hare Intl Airport to Dublin, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.
Flights via London (LHR) have the shortest average one-way travel time for 1-stop routes: 10h 35m.
Which airport typically offers the quickest layover for flights from Chicago O'Hare Intl Airport to Dublin?
Average layover duration for 1-stop one-way flights from Chicago O'Hare Intl Airport to Dublin, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.
Flights via London (LHR) offer the fastest connection on this route, with an average layover time of 7h 03m.
The best insider tips for Chicago O'Hare Intl Airport to Dublin flights
Snippets provided in this section are AI-generated based on a summarization of Cheapflights-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
Cheapflights partnered with top experts to bring you the best recommendations for your Chicago O'Hare Intl Airport to Dublin trip
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 November 26, 2025.
Read through reviews of airlines operating flights from Chicago O'Hare Intl Airport to Dublin, such as United Airlines, American Airlines, and Aer Lingus. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Comfort
7.3
Food
6.6
Overall
7.4
Boarding
7.7
Crew
8.1
Entertainment
7.1
Reviews
1 / 20
2.0
MediocreSebrena,Oct 2025
IAH - RSW
Comfort
7.3
Food
6.6
Overall
7.4
Boarding
7.7
Crew
8.1
Entertainment
7.1
Reviews
1 / 20
2.0
MediocreSebrena,Oct 2025
IAH - RSW
Comfort
7.3
Food
6.6
Overall
7.4
Boarding
7.7
Crew
8.1
Entertainment
7.1
Reviews
1 / 20
2.0
MediocreSebrena,Oct 2025
IAH - RSW
Comfort
7.3
Food
6.6
Overall
7.4
Boarding
7.7
Crew
8.1
Entertainment
7.1
Reviews
1 / 20
2.0
MediocreSebrena,Oct 2025
IAH - RSW
Comfort
7.3
Food
6.6
Overall
7.4
Boarding
7.7
Crew
8.1
Entertainment
7.1
Reviews
1 / 20
2.0
MediocreSebrena,Oct 2025
IAH - RSW
Comfort
7.3
Food
6.6
Overall
7.4
Boarding
7.7
Crew
8.1
Entertainment
7.1
Reviews
1 / 20
2.0
MediocreSebrena,Oct 2025
IAH - RSW
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.
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Book flights to Dublin if you plan to visit one of these locationsMaynooth
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Alternative routes for O'Hare Intl to Dublin
See prices for flight routes from nearby airports that may be better suited for you.
Top 10 airlines flying from O'Hare Intl to Dublin
Discover the top 10 airlines 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 2,558,603 searches. Data last updated November 26, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$51 | Average$557 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$346 | Average$556 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$393 | Average$502 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$400 | Average$479 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$473 | Average$818 | FlexibilityNo cancel fee | On-time79% | |
| Cheapest$476 | Average$744 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$494 | Average$721 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$512 | Average$687 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$522 | Average$781 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$523 | Average$674 | FlexibilityNo cancel fee | On-time67% |