$203+ 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 10/15. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — DUB
Sep 21 — Sep 281
Round-trip
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 February or January, booked 29 days in advance, depart on a Wednesday or Monday and return on a Sunday
Cheap flight deals from O'Hare Intl to Dublin
Cheapest
Best
Last-minute
One-way
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 August 22, 2026.
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 August 22, 2026.
This Kiwi.com deal was found by Cheapflights users on 8/21. 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 10/209:00 am -
2 stops26h 00m
Sun 10/2511:30 am -
Nonstop8h 30m
Deal found 8/21![Multiple Airlines logo]()
$421
This Kiwi.com deal was found by Cheapflights users on 8/21. 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.
Sat 10/33:50 pm -
2 stops41h 55m
Thu 10/154:45 pm -
Nonstop8h 30m
Deal found 8/21![Multiple Airlines logo]()
$434
This KAYAK deal was found by Cheapflights users on 8/17. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/118:50 pm -
1 stop26h 20m
Wed 11/181:00 pm -
1 stop12h 58m
Deal found 8/17![Aer Lingus logo]()
$436
This KAYAK deal was found by Cheapflights users on 8/17. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/1910:15 am -
1 stop12h 55m
Mon 11/231:00 pm -
1 stop12h 41m
Deal found 8/17![Aer Lingus logo]()
$440
This Kiwi.com deal was found by Cheapflights users on 8/21. 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 10/207:44 pm -
3 stops41h 11m
Mon 10/263:50 pm -
Nonstop8h 35m
Deal found 8/21![Multiple Airlines logo]()
$443
This Kiwi.com deal was found by Cheapflights users on 8/21. 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.
Mon 10/57:25 pm -
2 stops23h 10m
Mon 10/124:45 pm -
Nonstop8h 30m
Deal found 8/21![Multiple Airlines logo]()
$448
This Kiwi.com deal was found by Cheapflights users on 8/21. 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 10/207:25 pm -
2 stops15h 40m
Sun 11/13:50 pm -
Nonstop8h 35m
Deal found 8/21![Multiple Airlines logo]()
$449
This Kiwi.com deal was found by Cheapflights users on 8/21. 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.
Mon 10/197:25 pm -
3 stops21h 55m
Thu 10/293:50 pm -
Nonstop8h 35m
Deal found 8/21![Multiple Airlines logo]()
$450
This Kiwi.com deal was found by Cheapflights users on 8/21. 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.
Thu 11/56:30 pm -
2 stops31h 00m
Thu 11/1211:30 am -
Nonstop8h 30m
Deal found 8/21![Multiple Airlines logo]()
$452
This Kiwi.com deal was found by Cheapflights users on 8/21. 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.
Wed 11/186:30 pm -
2 stops19h 05m
Mon 11/2311:30 am -
Nonstop8h 30m
Deal found 8/21![Multiple Airlines logo]()
$453
This Kiwi.com deal was found by Cheapflights users on 8/21. 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.
Mon 10/57:25 pm -
2 stops15h 00m
Wed 10/1411:35 am -
Nonstop8h 25m
Deal found 8/21![Multiple Airlines logo]()
$456
Best flights from O'Hare Intl to DublinDiscover carefully curated flight deals from O'Hare Intl to Dublin that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 22, 2026.
Discover carefully curated flight deals from O'Hare Intl to Dublin that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 22, 2026.
This United deal was found by Cheapflights users on 8/17. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/16:30 pm -
Nonstop7h 40m
Fri 12/115:10 am -
1 stop20h 55m
Deal found 8/17![Multiple Airlines logo]()
$687
This Scandinavian Airlines deal was found by Cheapflights users on 8/21. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/137:15 pm -
1 stop17h 05m
Wed 10/287:05 pm -
1 stop27h 40m
Deal found 8/21![Scandinavian Airlines logo]()
$705
This United Airlines deal was found by Cheapflights users on 8/17. 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 11/86:30 pm -
Nonstop7h 40m
Thu 11/199:00 am -
1 stop12h 38m
Deal found 8/17![United Airlines logo]()
$708
This Delta deal was found by Cheapflights users on 8/18. 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 11/412:00 pm -
2 stops15h 00m
Wed 11/118:50 am -
1 stop11h 35m
Deal found 8/18![Delta logo]()
$718
This Finnair deal was found by Cheapflights users on 8/19. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 1/116:50 pm -
1 stop14h 35m
Tue 1/198:50 am -
1 stop12h 40m
Deal found 8/19![Multiple Airlines logo]()
$693
This United Airlines deal was found by Cheapflights users on 8/21. 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.
Tue 11/106:30 pm -
Nonstop7h 40m
Thu 11/1910:40 am -
Nonstop8h 40m
Deal found 8/21![United Airlines logo]()
$711
This United Airlines deal was found by Cheapflights users on 8/17. 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.
Wed 10/2812:59 pm -
1 stop13h 31m
Wed 11/410:40 am -
Nonstop8h 40m
Deal found 8/17![United Airlines logo]()
$716
This United Airlines deal was found by Cheapflights users on 8/18. 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.
Tue 10/137:30 am -
1 stop18h 00m
Wed 10/2810:40 am -
Nonstop8h 40m
Deal found 8/18![United Airlines logo]()
$741
This United Airlines deal was found by Cheapflights users on 8/17. 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.
Tue 1/129:30 pm -
2 stops28h 00m
Mon 1/189:00 am -
2 stops29h 03m
Deal found 8/17![United Airlines logo]()
$741
This United Airlines deal was found by Cheapflights users on 8/21. 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 10/188:20 pm -
Nonstop7h 25m
Thu 10/2910:40 am -
Nonstop8h 40m
Deal found 8/21![United Airlines logo]()
$741
This United Airlines deal was found by Cheapflights users on 8/19. 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 11/224:40 pm -
1 stop11h 15m
Tue 11/2410:40 am -
Nonstop8h 40m
Deal found 8/19![United Airlines logo]()
$741
Last-minute flights from O'Hare Intl to DublinDiscover last-minute flight deals from O'Hare Intl to Dublin. Data last updated August 22, 2026 and is based on user searches.
Discover last-minute flight deals from O'Hare Intl to Dublin. Data last updated August 22, 2026 and is based on user searches.
This KAYAK deal was found by Cheapflights users on 8/17. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/109:55 am -
1 stop13h 15m
Sat 9/191:20 pm -
1 stop12h 28m
Deal found 8/17![Aer Lingus logo]()
$474
This KAYAK deal was found by Cheapflights users on 8/17. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/169:55 am -
1 stop13h 15m
Wed 9/2311:35 am -
Nonstop8h 25m
Deal found 8/17![Aer Lingus logo]()
$681
This KAYAK deal was found by Cheapflights users on 8/17. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/208:40 pm -
1 stop26h 30m
Wed 9/301:20 pm -
1 stop12h 28m
Deal found 8/17![Aer Lingus logo]()
$678
This Gurufare deal was found by Cheapflights users on 8/17. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/208:40 pm -
1 stop26h 30m
Tue 9/291:20 pm -
1 stop12h 28m
Deal found 8/17![Aer Lingus logo]()
$679
This Ticket deal was found by Cheapflights users on 8/21. 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 Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/213:40 pm -
1 stop10h 05m
Tue 9/299:20 am -
1 stop11h 32m
Deal found 8/21![Air Canada logo]()
$666
This Gotogate deal was found by Cheapflights users on 8/19. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/217:25 pm -
1 stop11h 50m
Wed 9/3012:15 pm -
1 stop12h 00m
Deal found 8/19![Icelandair logo]()
$671
This KAYAK deal was found by Cheapflights users on 8/17. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/219:30 am -
1 stop13h 40m
Tue 9/291:20 pm -
1 stop12h 28m
Deal found 8/17![Aer Lingus logo]()
$674
This KAYAK deal was found by Cheapflights users on 8/17. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/219:30 am -
1 stop13h 40m
Wed 9/3011:35 am -
Nonstop8h 25m
Deal found 8/17![Aer Lingus logo]()
$677
This deal was found by Cheapflights users on 8/22. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/277:25 pm -
1 stop11h 50m
Tue 10/132:15 pm -
1 stop10h 00m
Deal found 8/22![Icelandair logo]()
$618
This deal was found by Cheapflights users on 8/22. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/287:25 pm -
1 stop11h 50m
Tue 10/132:15 pm -
1 stop10h 00m
Deal found 8/22![Icelandair logo]()
$619
This Kiwi.com deal was found by Cheapflights users on 8/21. 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.
Mon 9/287:25 pm -
1 stop11h 50m
Sun 10/47:45 pm -
2 stops28h 38m
Deal found 8/21![Multiple Airlines logo]()
$667
This Kiwi.com deal was found by Cheapflights users on 8/21. 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.
Mon 9/287:25 pm -
1 stop11h 50m
Sat 10/31:15 pm -
2 stops26h 05m
Deal found 8/21![Multiple Airlines logo]()
$668
One-way flights from O'Hare Intl to DublinSearch for one-way flight options from O'Hare Intl to Dublin. Find affordable one-way fares based on user searches. Data last updated August 22, 2026.
Search for one-way flight options from O'Hare Intl to Dublin. Find affordable one-way fares based on user searches. Data last updated August 22, 2026.
This KAYAK deal was found by Cheapflights users on 8/18. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/159:55 am -
1 stop13h 15m
Deal found 8/18![Aer Lingus logo]()
$203
This Kiwi.com deal was found by Cheapflights users on 8/18. 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.
Mon 10/198:11 pm -
2 stops41h 09m
Deal found 8/18![Multiple Airlines logo]()
$281
This Kiwi.com deal was found by Cheapflights users on 8/18. 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 10/209:00 am -
2 stops22h 10m
Deal found 8/18![Multiple Airlines logo]()
$284
This Kiwi.com deal was found by Cheapflights users on 8/20. 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.
Fri 10/27:25 pm -
2 stops29h 45m
Deal found 8/20![Multiple Airlines logo]()
$297
This Kiwi.com deal was found by Cheapflights users on 8/17. 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.
Wed 9/303:50 pm -
2 stops49h 00m
Deal found 8/17![Multiple Airlines logo]()
$300
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 August 22, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $389 (KAYAK) |
One-way from | $203 (KAYAK) |
Popular in | June |
Cheapest in | February |
Average price | $776 |
Good round-trip deal | $792 or less |
Good one-way deal | $440 or less |
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 7,457,451 searches. Data last updated August 22, 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
Cheapest round-trip
ChicagoDublin
ORD Chicago O'Hare Intl - DUB Dublin
ORDDUB
Chicago O'Hare Intl
Tue 12/1
6:30 pm-8:10 am
Nonstop7h 40m
Dublin
Fri 12/11
5:10 am-8:05 pm
1 stop20h 55m
$687
ChicagoDublin
ORD Chicago O'Hare Intl - DUB Dublin
ORDDUB
Chicago O'Hare Intl
Mon 1/11
6:50 pm-3:25 pm
1 stop14h 35m
Dublin
Tue 1/19
8:50 am-3:30 pm
1 stop12h 40m
$693
ChicagoDublin
ORD Chicago O'Hare Intl - DUB Dublin
ORDDUB
Chicago O'Hare Intl
Tue 10/13
7:15 pm-6:20 pm
1 stop17h 05m
Dublin
Wed 10/28
7:05 pm-5:45 pm
1 stop27h 40m
$705
ChicagoDublin
ORD Chicago O'Hare Intl - DUB Dublin
ORDDUB
Chicago O'Hare Intl
Sun 11/8
6:30 pm-8:10 am
Nonstop7h 40m
Dublin
Thu 11/19
9:00 am-3:38 pm
1 stop12h 38m
$708
ChicagoDublin
ORD Chicago O'Hare Intl - DUB Dublin
ORDDUB
Chicago O'Hare Intl
Tue 11/10
6:30 pm-8:10 am
Nonstop7h 40m
Dublin
Thu 11/19
10:40 am-1:20 pm
Nonstop8h 40m
$711
ChicagoDublin
ORD Chicago O'Hare Intl - DUB Dublin
ORDDUB
Chicago O'Hare Intl
Wed 10/28
12:59 pm-7:30 am
1 stop13h 31m
Dublin
Wed 11/4
10:40 am-1:20 pm
Nonstop8h 40m
$716
ChicagoDublin
ORD Chicago O'Hare Intl - DUB Dublin
ORDDUB
Chicago O'Hare Intl
Wed 11/4
12:00 pm-9:00 am
2 stops15h 00m
Dublin
Wed 11/11
8:50 am-2:25 pm
1 stop11h 35m
$718
ChicagoDublin
ORD Chicago O'Hare Intl - DUB Dublin
ORDDUB
Chicago O'Hare Intl
Tue 10/13
7:30 am-7:30 am
1 stop18h 00m
Dublin
Wed 10/28
10:40 am-2:20 pm
Nonstop8h 40m
$741
ChicagoDublin
ORD Chicago O'Hare Intl - DUB Dublin
ORDDUB
Chicago O'Hare Intl
Tue 1/12
9:30 pm-7:30 am
2 stops28h 00m
Dublin
Mon 1/18
9:00 am-8:03 am
2 stops29h 03m
$741
Quickest round-trip
ChicagoDublin
ORD Chicago O'Hare Intl - DUB Dublin
ORDDUB
Chicago O'Hare Intl
Sun 10/18
8:20 pm-9:45 am
Nonstop7h 25m
Dublin
Thu 10/29
10:40 am-2:20 pm
Nonstop8h 40m
$741
Showing 1-10 of 23 resultsSorted by cheapest first
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 August.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*1 star |
- Most accurate provider: When it comes to deals on Chicago O'Hare Intl Airport-Dublin flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Chicago O'Hare Intl Airport-Dublin flight deals on Cheapflights vs. FlightHub >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 FlightHub the most. FlightHub 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.
ORD-DUB
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?
Booking 28 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, February is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Dublin (average of $516). Flying from Chicago O'Hare Intl Airport to Dublin in June is currently the most expensive (average of $957). 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 August 22, 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 often are flights from Chicago to Dublin delayed?
About 23% of weekly flights between Chicago and Dublin have experienced delays in the past year, with the average delay time being 154 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?
Sunday tends to have the lowest number of delays on this route, whereas Thursday 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, American Airlines have had the lowest number of delays on this route, with just 20% 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.
Reykjavik (KEF) – chosen by Cheapflights users on 43% 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.
Lisbon (LIS) is the most affordable 1-stop option, with an average round-trip price of $492.
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 Reykjavik (KEF) have the shortest average one-way travel time for 1-stop routes: 11h 50m.
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 Reykjavik (KEF) offer the fastest connection on this route, with an average layover time of 2h 48m.
The best insider tips for Chicago O'Hare Intl Airport to Dublin flights
AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your Chicago O'Hare Intl Airport to Dublin trip
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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 August 22, 2026.
Read through reviews of airlines operating flights from Chicago O'Hare Intl Airport to Dublin, such as United Airlines,Aer Lingus, andAmerican Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Comfort
7.3
Food
6.7
Entertainment
7.1
Overall
7.4
Boarding
7.7
Crew
8.1
Reviews
1 / 20
2.0
MediocreDawn,Aug 2026
ORD - DEN
Comfort
7.3
Food
6.7
Entertainment
7.1
Overall
7.4
Boarding
7.7
Crew
8.1
Reviews
1 / 20
2.0
MediocreDawn,Aug 2026
ORD - DEN
Comfort
7.3
Food
6.7
Entertainment
7.1
Overall
7.4
Boarding
7.7
Crew
8.1
Reviews
1 / 20
2.0
MediocreDawn,Aug 2026
ORD - DEN
Comfort
7.3
Food
6.7
Entertainment
7.1
Overall
7.4
Boarding
7.7
Crew
8.1
Reviews
1 / 20
2.0
MediocreDawn,Aug 2026
ORD - DEN
Comfort
7.3
Food
6.7
Entertainment
7.1
Overall
7.4
Boarding
7.7
Crew
8.1
Reviews
1 / 20
2.0
MediocreDawn,Aug 2026
ORD - DEN
Comfort
7.3
Food
6.7
Entertainment
7.1
Overall
7.4
Boarding
7.7
Crew
8.1
Reviews
1 / 20
2.0
MediocreDawn,Aug 2026
ORD - DEN
Related info for your journey
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O'Hare Intl and Dublin flights
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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 7,457,451 searches. Data last updated August 22, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$346 | Average$575 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$359 | Average$689 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$386 | Average$500 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$424 | Average$771 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$425 | Average$849 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$469 | Average$603 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$473 | Average$800 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$476 | Average$703 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$479 | Average$822 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$484 | Average$876 | FlexibilityNo cancel fee | On-time71% |