$372+ Cheap flights from Dublin (DUB) to O'Hare Intl (ORD)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/17. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — ORD
Oct 10 — Oct 171
Round-trip
1 adult, Economy
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Find cheap flights from Dublin to O'Hare Intl 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 Dublin to Chicago O'Hare Intl are usually found in November or February, booked 55 days in advance, depart on a Sunday or Friday and return on a Wednesday
Cheap flight deals from Dublin to O'Hare Intl
Cheapest
Best
Last-minute
One-way
Cheapest flights from Dublin to O'Hare IntlExplore the most affordable flight options available from Dublin to O'Hare Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 10, 2026.
Explore the most affordable flight options available from Dublin to O'Hare Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 10, 2026.
This deal was found by Cheapflights users on 9/7. 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.
Tue 11/1711:30 am -
1 stop11h 50m
Sat 11/286:30 pm -
1 stop9h 45m
Deal found 9/7![Icelandair logo]()
$372
This deal was found by Cheapflights users on 9/7. 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.
Thu 11/1911:30 am -
1 stop11h 50m
Fri 11/276:30 pm -
1 stop9h 45m
Deal found 9/7![Icelandair logo]()
$392
This deal was found by Cheapflights users on 9/7. 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.
Thu 11/1911:30 am -
1 stop11h 50m
Thu 12/36:30 pm -
1 stop9h 45m
Deal found 9/7![Icelandair logo]()
$411
This TravelUp deal was found by Cheapflights users on 9/5. 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 TravelUp is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/2611:30 am -
1 stop11h 50m
Sun 11/296:30 pm -
1 stop9h 45m
Deal found 9/5![Icelandair logo]()
$418
This Booking.com deal was found by Cheapflights users on 9/5. 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 Booking.com is selected, and click “Compare selected ” under the list of providers to see comparable flight deals.
Wed 11/2511:30 am -
1 stop11h 50m
Sat 11/286:30 pm -
1 stop9h 45m
Deal found 9/5![Icelandair logo]()
$446
This deal was found by Cheapflights users on 9/7. 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.
Tue 12/1511:00 am -
1 stop13h 45m
Mon 1/49:50 pm -
1 stop13h 15m
Deal found 9/7![British Airways logo]()
$455
This deal was found by Cheapflights users on 9/7. 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.
Tue 12/1511:00 am -
1 stop13h 45m
Thu 12/315:10 pm -
1 stop13h 15m
Deal found 9/7![British Airways logo]()
$456
This Kiwi.com deal was found by Cheapflights users on 9/5. 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 11/2411:30 am -
1 stop11h 50m
Sat 11/286:30 pm -
1 stop9h 45m
Deal found 9/5![Icelandair logo]()
$458
This Icelandair deal was found by Cheapflights users on 9/6. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/211:30 am -
1 stop11h 50m
Sun 12/66:30 pm -
1 stop9h 45m
Deal found 9/6![Icelandair logo]()
$460
This deal was found by Cheapflights users on 9/7. 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.
Tue 12/158:50 am -
1 stop15h 55m
Tue 1/55:10 pm -
1 stop13h 00m
Deal found 9/7![British Airways logo]()
$470
Best flights from Dublin to O'Hare IntlDiscover carefully curated flight deals from Dublin to O'Hare Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 10, 2026.
Discover carefully curated flight deals from Dublin to O'Hare Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 10, 2026.
This Icelandair deal was found by Cheapflights users on 9/6. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/211:30 am -
1 stop11h 50m
Sun 12/66:30 pm -
1 stop9h 45m
Deal found 9/6![Icelandair logo]()
$460
This British Airways deal was found by Cheapflights users on 9/6. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/218:40 pm -
1 stop24h 50m
Tue 2/25:10 pm -
1 stop10h 30m
Deal found 9/6![British Airways logo]()
$545
This KLM deal was found by Cheapflights users on 9/7. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/278:55 am -
1 stop11h 30m
Mon 1/116:25 pm -
1 stop18h 00m
Deal found 9/7![Multiple Airlines logo]()
$561
This Delta deal was found by Cheapflights users on 9/7. 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.
Mon 12/289:55 am -
1 stop14h 40m
Mon 1/1110:40 am -
2 stops16h 20m
Deal found 9/7![Delta logo]()
$576
This American Airlines deal was found by Cheapflights users on 9/4. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/2911:30 am -
1 stop16h 00m
Wed 11/44:50 pm -
1 stop9h 50m
Deal found 9/4![American Airlines logo]()
$589
This United Airlines deal was found by Cheapflights users on 9/4. 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.
Fri 10/29:50 am -
1 stop16h 16m
Fri 10/95:07 pm -
1 stop12h 03m
Deal found 9/4![United Airlines logo]()
$602
This Scandinavian Airlines deal was found by Cheapflights users on 9/6. 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.
Wed 12/2312:35 pm -
2 stops34h 10m
Fri 1/17:15 pm -
2 stops32h 55m
Deal found 9/6![Scandinavian Airlines logo]()
$618
This Finnair deal was found by Cheapflights users on 9/6. 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.
Thu 10/299:45 am -
1 stop14h 00m
Wed 11/48:30 pm -
1 stop14h 30m
Deal found 9/6![Multiple Airlines logo]()
$566
This United Airlines deal was found by Cheapflights users on 9/6. 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 10/49:20 am -
1 stop16h 28m
Sun 10/113:25 pm -
2 stops13h 45m
Deal found 9/6![United Airlines logo]()
$610
This United Airlines deal was found by Cheapflights users on 9/7. 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.
Mon 12/289:30 am -
1 stop18h 45m
Mon 1/116:30 pm -
Nonstop7h 40m
Deal found 9/7![United Airlines logo]()
$615
Last-minute flights from Dublin to O'Hare IntlDiscover last-minute flight deals from Dublin to O'Hare Intl. Data last updated September 10, 2026 and is based on user searches.
Discover last-minute flight deals from Dublin to O'Hare Intl. Data last updated September 10, 2026 and is based on user searches.
This Expedia deal was found by Cheapflights users on 9/9. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/218:55 am -
1 stop11h 35m
Wed 10/281:23 pm -
1 stop13h 22m
Deal found 9/9![KLM logo]()
$559
This Expedia deal was found by Cheapflights users on 9/6. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/235:55 am -
1 stop14h 20m
Thu 10/291:23 pm -
1 stop13h 22m
Deal found 9/6![KLM logo]()
$560
This Delta deal was found by Cheapflights users on 9/6. 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 10/255:45 am -
1 stop14h 40m
Sun 11/19:59 am -
1 stop15h 56m
Deal found 9/6![Delta logo]()
$563
This Gotogate deal was found by Cheapflights users on 9/9. 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 10/265:10 am -
1 stop14h 00m
Tue 11/34:20 pm -
1 stop18h 10m
Deal found 9/9![Lufthansa logo]()
$534
This Gotogate deal was found by Cheapflights users on 9/5. 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 10/265:10 am -
1 stop14h 00m
Mon 11/24:20 pm -
1 stop12h 40m
Deal found 9/5![Lufthansa logo]()
$541
This lol.travel deal was found by Cheapflights users on 9/5. 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/269:45 am -
1 stop14h 00m
Sun 11/112:02 pm -
1 stop13h 08m
Deal found 9/5![Finnair logo]()
$554
This Gotogate deal was found by Cheapflights users on 9/5. 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.
Thu 10/295:10 am -
1 stop14h 00m
Sat 11/74:20 pm -
1 stop18h 10m
Deal found 9/5![Lufthansa logo]()
$539
This Expedia deal was found by Cheapflights users on 9/8. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/299:45 am -
1 stop14h 00m
Mon 11/28:30 pm -
1 stop12h 55m
Deal found 9/8![Multiple Airlines logo]()
$557
This KLM deal was found by Cheapflights users on 9/8. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/298:50 am -
1 stop11h 35m
Sun 11/13:30 pm -
1 stop10h 25m
Deal found 9/8![KLM logo]()
$564
One-way flights from Dublin to O'Hare IntlSearch for one-way flight options from Dublin to O'Hare Intl. Find affordable one-way fares based on user searches. Data last updated September 10, 2026.
Search for one-way flight options from Dublin to O'Hare Intl. Find affordable one-way fares based on user searches. Data last updated September 10, 2026.
This Kiwi.com deal was found by Cheapflights users on 9/7. 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 9/1511:30 am -
3 stops55h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![Multiple Airlines logo]()
$467
This Thrive Travel deal was found by Cheapflights users on 9/5. 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 Thrive Travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/293:50 pm -
Nonstop8h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![Iberia logo]()
$469
This Kiwi.com deal was found by Cheapflights users on 9/6. 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.
Sun 3/76:00 pm -
3 stops28h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/6![Multiple Airlines logo]()
$470
This TAP AIR PORTUGAL deal was found by Cheapflights users on 9/6. 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 TAP AIR PORTUGAL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/74:55 pm -
1 stop28h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/6![TAP AIR PORTUGAL logo]()
$471
This Kiwi.com deal was found by Cheapflights users on 9/6. 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 12/3012:30 pm -
3 stops34h 50m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/6![Multiple Airlines logo]()
$472
This Kiwi.com deal was found by Cheapflights users on 9/6. 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 12/26:35 am -
3 stops38h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/6![Multiple Airlines logo]()
$473
This Thrive Travel deal was found by Cheapflights users on 9/5. 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 Thrive Travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/284:45 pm -
Nonstop8h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![British Airways logo]()
$476
This SmartFares deal was found by Cheapflights users on 9/6. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/111:30 am -
1 stop11h 50m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/6![Icelandair logo]()
$477
This Expedia deal was found by Cheapflights users on 9/7. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/1411:30 am -
1 stop28h 28m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![JetBlue logo]()
$478
This Expedia deal was found by Cheapflights users on 9/7. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/211:30 am -
1 stop16h 29m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![JetBlue logo]()
$479
Find flight deals from Dublin to O'Hare Intl
Discover tips and strategies to find the most affordable flight options for your journey from Dublin (DUB) to O'Hare Intl (ORD). 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 September 10, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $372 |
Popular in | July |
Cheapest in | November |
Average price | $619 |
Good round-trip deal | $545 or less |
Good one-way deal | $624 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Dublin to O'Hare Intl 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 September 10, 2026.
Use the filters below to find and compare flights from Dublin to Chicago O'Hare Intl Airport that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
DublinChicago
DUB Dublin - ORD Chicago O'Hare Intl
DUBORD
Dublin
Wed 12/2
11:30 am-5:20 pm
1 stop11h 50m
Chicago O'Hare Intl
Sun 12/6
6:30 pm-10:15 am
1 stop9h 45m
$460
DublinChicago
DUB Dublin - ORD Chicago O'Hare Intl
DUBORD
Dublin
Sat 11/7
4:15 am-3:30 pm
1 stop17h 15m
Chicago O'Hare Intl
Wed 12/31
12:00 am-7:00 am
Nonstop0h 00m
$471
DublinChicago
DUB Dublin - ORD Chicago O'Hare Intl
DUBORD
Dublin
Sun 3/7
6:00 pm-4:45 pm
3 stops28h 45m
Chicago O'Hare Intl
Wed 12/31
12:00 am-7:00 am
Nonstop0h 00m
$471
DublinChicago
DUB Dublin - ORD Chicago O'Hare Intl
DUBORD
Dublin
Sat 11/7
4:55 pm-3:30 pm
1 stop28h 35m
Chicago O'Hare Intl
Wed 12/31
12:00 am-7:00 am
Nonstop0h 00m
$471
Quickest round-trip
DublinChicago
DUB Dublin - ORD Chicago O'Hare Intl
DUBORD
Dublin
Fri 10/2
11:35 am-2:00 pm
Nonstop8h 25m
Chicago O'Hare Intl
Wed 12/31
12:00 am-7:00 am
Nonstop0h 00m
$476
DublinChicago
DUB Dublin - ORD Chicago O'Hare Intl
DUBORD
Dublin
Sun 10/11
5:55 am-2:15 pm
1 stop14h 20m
Chicago O'Hare Intl
Wed 12/31
12:00 am-7:00 am
Nonstop0h 00m
$486
DublinChicago
DUB Dublin - ORD Chicago O'Hare Intl
DUBORD
Dublin
Mon 9/28
5:55 am-2:30 pm
1 stop14h 35m
Chicago O'Hare Intl
Wed 12/31
12:00 am-7:00 am
Nonstop0h 00m
$486
DublinChicago
DUB Dublin - ORD Chicago O'Hare Intl
DUBORD
Dublin
Sat 9/19
5:55 am-2:15 pm
1 stop14h 20m
Chicago O'Hare Intl
Wed 12/31
12:00 am-7:00 am
Nonstop0h 00m
$486
DublinChicago
DUB Dublin - ORD Chicago O'Hare Intl
DUBORD
Dublin
Tue 9/29
11:10 am-9:37 pm
2 stops16h 27m
Chicago O'Hare Intl
Wed 12/31
12:00 am-7:00 am
Nonstop0h 00m
$491
DublinChicago
DUB Dublin - ORD Chicago O'Hare Intl
DUBORD
Dublin
Sat 12/26
4:15 am-3:30 pm
1 stop17h 15m
Chicago O'Hare Intl
Wed 12/31
12:00 am-7:00 am
Nonstop0h 00m
$520
Showing 1-10 of 20 resultsSorted by cheapest first
Compare providers for flights from Dublin to O'Hare Intl
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 Dublin to O'Hare Intl in September.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*2 stars |
- Most accurate provider: When it comes to deals on Dublin-Chicago O'Hare Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Dublin-Chicago O'Hare Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Dublin-Chicago O'Hare Intl Airport flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Dublin-Chicago O'Hare Intl Airport 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 Dublin-Chicago O'Hare Intl Airport 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 Dublin to O'Hare Intl
Have a flexible travel schedule? Discover the best time to fly to O'Hare Intl from Dublin with our price prediction graph.
DUB-ORD
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 Dublin to Chicago O'Hare Intl Airport
Prices
Airlines
Delays
How far ahead should I book a flight from Dublin to Chicago O'Hare Intl Airport?
To ensure you get the cheapest price possible for a flight from Dublin to Chicago O'Hare Intl Airport, you should look to book at least 54 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 Dublin to Chicago O'Hare Intl Airport?
Currently, November is the cheapest month in which you can book a flight from Dublin to Chicago O'Hare Intl Airport (average of $497). Flying from Dublin to Chicago O'Hare Intl Airport in July is currently the most expensive (average of $847). 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 DUB to ORD?
Find hourly flight availability from Dublin to O'Hare Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 10, 2026.
When flying from Dublin to Chicago O'Hare Intl Airport, 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 Dublin to Chicago delayed?
About 11% of weekly flights between Dublin and Chicago have experienced delays in the past year, with the average delay time being 154 minutes.
What is the most punctual flight time for Dublin to Chicago flights?
Historically, flights departing in the early afternoon are less likely to be delayed, whereas flights leaving in the morning tend to experience delays more often.
What day of the week experiences the fewest flight delays on this route?
Thursday tends to have the lowest number of delays on this route, whereas Tuesday has historically faced a higher average of delays compared to other days of the week.
Which airline has the best punctuality record on Dublin to Chicago flights?
Over the last year, Aer Lingus have had the lowest number of delays on this route, with just 7% of flights being delayed.
The best insider tips for Dublin to Chicago O'Hare Intl Airport 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 Dublin to Chicago O'Hare Intl Airport trip
Our travel experts
Reviews of airlines servicing O'Hare Intl
Get insights into the airlines that provide service to O'Hare Intl. 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 O'Hare Intl. Reviews last updated September 10, 2026.
Get a feel of what it's like to fly with United Airlines and Aer Lingus from Dublin to Chicago O'Hare Intl Airport by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Comfort
7.3
Overall
7.4
Food
6.6
Boarding
7.7
Entertainment
7.1
Crew
8.1
Reviews
1 / 20
4.0
OkayChris,Aug 2026
MIA - ORD
Comfort
7.3
Overall
7.4
Food
6.6
Boarding
7.7
Entertainment
7.1
Crew
8.1
Reviews
1 / 20
4.0
OkayChris,Aug 2026
MIA - ORD
Comfort
7.3
Overall
7.4
Food
6.6
Boarding
7.7
Entertainment
7.1
Crew
8.1
Reviews
1 / 20
4.0
OkayChris,Aug 2026
MIA - ORD
Related info for your journey
Find useful and relevant information for your journey from Dublin to O'Hare Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Chicago O'Hare Intl Airport?
Book flights to Chicago O'Hare Intl Airport if you plan to visit one of these locationsBenton Harbor
Rosemont
Lake Geneva
Naperville
Des Plaines
Glenview
Schaumburg
Oakbrook Terrace
Delavan
Oak Brook
Libertyville
Orland Park
Hoffman Estates
Aurora
Beloit
Rockford
South Holland
Elgin
Racine
Janesville
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Top 2 airlines flying from Dublin to O'Hare Intl
Discover the top 2 airlines that operate flights from Dublin to O'Hare Intl. 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 September 10, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$453 | Average$650 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$479 | Average$680 | FlexibilityNo cancel fee | On-time69% |