$501+ Cheap flights from Dublin (DUB) to O'Hare Intl (ORD)
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 11/2. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — ORD
Sep 13 — Sep 201
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 67 days in advance, depart on a Sunday or Thursday 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 August 14, 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 August 14, 2026.
This Expedia deal was found by Cheapflights users on 8/10. 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 12/211:00 pm -
1 stop11h 45m
Mon 12/285:10 pm -
1 stop11h 05m
Deal found 8/10![British Airways logo]()
$609
This Mytrip deal was found by Cheapflights users on 8/10. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/2511:35 am -
Nonstop8h 25m
Fri 10/29:15 pm -
1 stop13h 20m
Deal found 8/10![Aer Lingus logo]()
$611
This Justfly.com deal was found by Cheapflights users on 8/10. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/192:15 pm -
1 stop10h 00m
Sat 10/247:30 pm -
1 stop9h 45m
Deal found 8/10![Icelandair logo]()
$612
This TravelUp deal was found by Cheapflights users on 8/12. 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 9/174:45 pm -
Nonstop8h 30m
Tue 9/2910:25 pm -
1 stop12h 35m
Deal found 8/12![Multiple Airlines logo]()
$613
This TravelUp deal was found by Cheapflights users on 8/10. 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.
Wed 9/94:45 pm -
Nonstop8h 30m
Wed 9/238:50 pm -
1 stop11h 45m
Deal found 8/10![Multiple Airlines logo]()
$614
This Scandinavian Airlines deal was found by Cheapflights users on 8/12. 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.
Mon 11/212:35 pm -
2 stops34h 10m
Sat 11/77:15 pm -
2 stops33h 30m
Deal found 8/12![Scandinavian Airlines logo]()
$615
This Mytrip deal was found by Cheapflights users on 8/9. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1711:35 am -
Nonstop8h 25m
Mon 1/255:10 pm -
1 stop10h 40m
Deal found 8/9![Aer Lingus logo]()
$616
This Finnair deal was found by Cheapflights users on 8/10. 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 8/279:30 am -
Nonstop8h 00m
Tue 9/110:30 pm -
1 stop12h 30m
Deal found 8/10![Multiple Airlines logo]()
$617
This Booking.com deal was found by Cheapflights users on 8/11. 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 9/234:45 pm -
Nonstop8h 30m
Thu 10/19:15 pm -
1 stop11h 35m
Deal found 8/11![Aer Lingus logo]()
$618
This Gotogate deal was found by Cheapflights users on 8/10. 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 9/2411:35 am -
Nonstop8h 25m
Thu 10/19:15 pm -
1 stop12h 30m
Deal found 8/10![Aer Lingus logo]()
$620
This Gotogate deal was found by Cheapflights users on 8/10. 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 9/1711:35 am -
Nonstop8h 25m
Tue 9/225:00 pm -
1 stop11h 15m
Deal found 8/10![Aer Lingus logo]()
$621
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 August 14, 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 August 14, 2026.
This Scandinavian Airlines deal was found by Cheapflights users on 8/10. 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 9/2311:40 am -
2 stops34h 30m
Sun 9/277:15 pm -
2 stops32h 55m
Deal found 8/10![Scandinavian Airlines logo]()
$621
This Delta deal was found by Cheapflights users on 8/11. 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 12/278:55 am -
1 stop11h 30m
Mon 1/116:10 pm -
2 stops18h 15m
Deal found 8/11![Delta logo]()
$664
This Scandinavian Airlines deal was found by Cheapflights users on 8/13. 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.
Mon 9/287:05 pm -
2 stops33h 27m
Thu 10/17:15 pm -
1 stop17h 05m
Deal found 8/13![Scandinavian Airlines logo]()
$671
This Delta deal was found by Cheapflights users on 8/12. 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.
Sat 9/265:55 am -
2 stops17h 08m
Sat 10/36:00 pm -
2 stops15h 25m
Deal found 8/12![Delta logo]()
$673
This Delta deal was found by Cheapflights users on 8/13. 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.
Fri 10/98:55 am -
2 stops18h 36m
Mon 10/123:05 pm -
1 stop13h 40m
Deal found 8/13![Delta logo]()
$676
This Scandinavian Airlines deal was found by Cheapflights users on 8/10. 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.
Thu 9/37:50 pm -
2 stops26h 20m
Mon 9/77:15 pm -
2 stops32h 55m
Deal found 8/10![Scandinavian Airlines logo]()
$695
This Delta deal was found by Cheapflights users on 8/9. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/245:55 am -
2 stops20h 35m
Tue 12/159:59 am -
2 stops17h 01m
Deal found 8/9![Delta logo]()
$719
This Scandinavian Airlines deal was found by Cheapflights users on 8/9. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/2812:30 pm -
1 stop34h 15m
Sat 1/27:15 pm -
1 stop34h 30m
Deal found 8/9![Scandinavian Airlines logo]()
$763
This Scandinavian Airlines deal was found by Cheapflights users on 8/11. 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.
Thu 8/277:50 pm -
2 stops26h 20m
Mon 8/317:15 pm -
2 stops33h 40m
Deal found 8/11![Scandinavian Airlines logo]()
$767
Last-minute flights from Dublin to O'Hare IntlDiscover last-minute flight deals from Dublin to O'Hare Intl. Data last updated August 14, 2026 and is based on user searches.
Discover last-minute flight deals from Dublin to O'Hare Intl. Data last updated August 14, 2026 and is based on user searches.
This Finnair deal was found by Cheapflights users on 8/10. 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 8/279:30 am -
Nonstop8h 00m
Tue 9/110:30 pm -
1 stop12h 30m
Deal found 8/10![Multiple Airlines logo]()
$617
This TravelUp deal was found by Cheapflights users on 8/10. 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.
Wed 9/94:45 pm -
Nonstop8h 30m
Wed 9/238:50 pm -
1 stop11h 45m
Deal found 8/10![Multiple Airlines logo]()
$614
This Scandinavian Airlines deal was found by Cheapflights users on 8/9. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/911:40 am -
2 stops34h 30m
Sun 9/137:15 pm -
2 stops17h 50m
Deal found 8/9![Scandinavian Airlines logo]()
$625
This TravelUp deal was found by Cheapflights users on 8/12. 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 9/174:45 pm -
Nonstop8h 30m
Tue 9/2910:25 pm -
1 stop12h 35m
Deal found 8/12![Multiple Airlines logo]()
$613
This Mytrip deal was found by Cheapflights users on 8/9. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1711:35 am -
Nonstop8h 25m
Mon 1/255:10 pm -
1 stop10h 40m
Deal found 8/9![Aer Lingus logo]()
$616
This Gotogate deal was found by Cheapflights users on 8/10. 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 9/1711:35 am -
Nonstop8h 25m
Tue 9/225:00 pm -
1 stop11h 15m
Deal found 8/10![Aer Lingus logo]()
$621
This Booking.com deal was found by Cheapflights users on 8/11. 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 9/234:45 pm -
Nonstop8h 30m
Thu 10/19:15 pm -
1 stop11h 35m
Deal found 8/11![Aer Lingus logo]()
$618
This Gotogate deal was found by Cheapflights users on 8/10. 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 9/2411:35 am -
Nonstop8h 25m
Thu 10/19:15 pm -
1 stop12h 30m
Deal found 8/10![Aer Lingus logo]()
$620
This Mytrip deal was found by Cheapflights users on 8/10. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/2511:35 am -
Nonstop8h 25m
Fri 10/29:15 pm -
1 stop13h 20m
Deal found 8/10![Aer Lingus logo]()
$611
This Mytrip deal was found by Cheapflights users on 8/12. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/2611:35 am -
Nonstop8h 25m
Sat 10/35:00 pm -
1 stop10h 40m
Deal found 8/12![Aer Lingus logo]()
$612
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 August 14, 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 August 14, 2026.
This FlightHub deal was found by Cheapflights users on 8/11. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/211:30 am -
1 stop11h 50m
Deal found 8/11![Icelandair logo]()
$501
This Trip.com deal was found by Cheapflights users on 8/11. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/295:30 am -
1 stop16h 35m
Deal found 8/11![TAP AIR PORTUGAL logo]()
$502
This Kiwi.com deal was found by Cheapflights users on 8/12. 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 9/1210:00 am -
2 stops18h 59m
Deal found 8/12![Multiple Airlines logo]()
$503
This FlightHub deal was found by Cheapflights users on 8/13. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/106:50 pm -
1 stop27h 10m
Deal found 8/13![TAP AIR PORTUGAL logo]()
$504
This TAP AIR PORTUGAL deal was found by Cheapflights users on 8/12. 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.
Tue 9/86:50 pm -
1 stop27h 10m
Deal found 8/12![TAP AIR PORTUGAL logo]()
$507
This TAP AIR PORTUGAL deal was found by Cheapflights users on 8/11. 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.
Thu 8/276:50 pm -
1 stop27h 10m
Deal found 8/11![TAP AIR PORTUGAL logo]()
$508
This Justfly.com deal was found by Cheapflights users on 8/13. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/210:45 am -
1 stop31h 55m
Deal found 8/13![TAP AIR PORTUGAL logo]()
$511
This Cheapflightsfares deal was found by Cheapflights users on 8/10. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/125:30 am -
1 stop16h 35m
Deal found 8/10![TAP AIR PORTUGAL logo]()
$512
This deal was found by Cheapflights users on 8/9. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/1210:30 am -
1 stop11h 25m
Deal found 8/9![British Airways logo]()
$513
This TAP AIR PORTUGAL deal was found by Cheapflights users on 8/13. 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.
Wed 9/910:45 am -
1 stop31h 55m
Deal found 8/13![TAP AIR PORTUGAL logo]()
$514
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 August 14, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $609 (Expedia) |
One-way from | $501 (FlightHub) |
Popular in | July |
Cheapest in | November |
Average price | $836 |
Good round-trip deal | $710 or less |
Good one-way deal | $717 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 2,558,603 searches. Data last updated August 14, 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 9/23
11:40 am-4:10 pm
2 stops34h 30m
Chicago O'Hare Intl
Sun 9/27
7:15 pm-10:10 am
2 stops32h 55m
$621
Quickest round-trip
DublinChicago
DUB Dublin - ORD Chicago O'Hare Intl
DUBORD
Dublin
Sun 12/27
8:55 am-2:25 pm
1 stop11h 30m
Chicago O'Hare Intl
Mon 1/11
6:10 pm-6:25 pm
2 stops18h 15m
$664
DublinChicago
DUB Dublin - ORD Chicago O'Hare Intl
DUBORD
Dublin
Mon 9/28
7:05 pm-10:32 pm
2 stops33h 27m
Chicago O'Hare Intl
Thu 10/1
7:15 pm-6:20 pm
1 stop17h 05m
$671
DublinChicago
DUB Dublin - ORD Chicago O'Hare Intl
DUBORD
Dublin
Sat 9/26
5:55 am-5:03 pm
2 stops17h 08m
Chicago O'Hare Intl
Sat 10/3
6:00 pm-3:25 pm
2 stops15h 25m
$673
DublinChicago
DUB Dublin - ORD Chicago O'Hare Intl
DUBORD
Dublin
Fri 10/9
8:55 am-9:31 pm
2 stops18h 36m
Chicago O'Hare Intl
Mon 10/12
3:05 pm-10:45 am
1 stop13h 40m
$676
DublinChicago
DUB Dublin - ORD Chicago O'Hare Intl
DUBORD
Dublin
Thu 9/3
7:50 pm-4:10 pm
2 stops26h 20m
Chicago O'Hare Intl
Mon 9/7
7:15 pm-10:10 am
2 stops32h 55m
$695
DublinChicago
DUB Dublin - ORD Chicago O'Hare Intl
DUBORD
Dublin
Sat 10/24
5:55 am-8:30 pm
2 stops20h 35m
Chicago O'Hare Intl
Tue 12/15
9:59 am-9:00 am
2 stops17h 01m
$719
DublinChicago
DUB Dublin - ORD Chicago O'Hare Intl
DUBORD
Dublin
Mon 12/28
12:30 pm-4:45 pm
1 stop34h 15m
Chicago O'Hare Intl
Sat 1/2
7:15 pm-11:45 am
1 stop34h 30m
$763
DublinChicago
DUB Dublin - ORD Chicago O'Hare Intl
DUBORD
Dublin
Thu 8/27
7:50 pm-4:10 pm
2 stops26h 20m
Chicago O'Hare Intl
Mon 8/31
7:15 pm-10:55 am
2 stops33h 40m
$767
Cheapest one-way
DublinChicago
DUB Dublin - ORD Chicago O'Hare Intl
DUBORD
Dublin
Thu 9/10
6:50 pm-4:00 pm
1 stop27h 10m
$507
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 August.
| 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 66 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 $476). Flying from Dublin to Chicago O'Hare Intl Airport in July is currently the most expensive (average of $848). 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 August 14, 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 August 14, 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.
Boarding
7.7
Overall
7.4
Crew
8.1
Food
6.7
Comfort
7.3
Entertainment
7.1
Reviews
1 / 20
4.0
OkayChris,Aug 2026
MIA - ORD
Boarding
7.7
Overall
7.4
Crew
8.1
Food
6.7
Comfort
7.3
Entertainment
7.1
Reviews
1 / 20
4.0
OkayChris,Aug 2026
MIA - ORD
Boarding
7.7
Overall
7.4
Crew
8.1
Food
6.7
Comfort
7.3
Entertainment
7.1
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
Schaumburg
Naperville
Lake Geneva
Oak Brook
Oakbrook Terrace
Delavan
South Holland
Libertyville
Gurnee
Orland Park
Hoffman Estates
Beloit
Rockford
Aurora
Racine
Great Lakes
Janesville
Joliet
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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 2,558,603 searches. Data last updated August 14, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$463 | Average$678 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$473 | Average$680 | FlexibilityNo cancel fee | On-time69% |