$377+ Cheap flights from Ontario (ONT) 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 9/21. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — DUB
Sep 20 — Sep 271
Round-trip
1 adult, Economy
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Find cheap flights from Ontario 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.Cheap flight deals from Ontario to Dublin
Cheapest
Best
Last-minute
One-way
Cheapest flights from Ontario to DublinExplore the most affordable flight options available from Ontario to Dublin. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 21, 2026.
Explore the most affordable flight options available from Ontario to Dublin. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 21, 2026.
This Iberia 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/97:00 am -
1 stop16h 15m
Wed 11/181:00 pm -
1 stop18h 43m
Deal found 8/20![Iberia logo]()
$775
This Priceline 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/911:05 pm -
1 stop25h 55m
Fri 10/1611:30 am -
1 stop18h 39m
Deal found 8/19![JetBlue logo]()
$792
This CheapOair 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1010:39 pm -
1 stop26h 21m
Fri 9/1811:30 am -
1 stop17h 27m
Deal found 8/18![JetBlue logo]()
$806
This Justfly.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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/2310:39 pm -
1 stop26h 21m
Wed 10/711:30 am -
1 stop17h 30m
Deal found 8/17![JetBlue logo]()
$808
This Iberia 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/127:00 am -
1 stop16h 15m
Wed 11/181:00 pm -
1 stop18h 43m
Deal found 8/19![Iberia logo]()
$825
This FlightHub 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/2711:59 pm -
2 stops33h 06m
Tue 1/54:20 pm -
2 stops38h 25m
Deal found 8/20![British Airways logo]()
$835
This Iberia 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/1212:43 pm -
1 stop13h 02m
Wed 10/2812:55 pm -
1 stop15h 16m
Deal found 8/19![Iberia logo]()
$844
This American Airlines 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/236:00 am -
2 stops16h 30m
Wed 10/712:40 pm -
2 stops18h 13m
Deal found 8/20![American Airlines logo]()
$854
This Trip.com 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/86:00 am -
1 stop17h 15m
Sun 11/151:00 pm -
1 stop16h 32m
Deal found 8/19![Iberia logo]()
$868
Best flights from Ontario to DublinDiscover carefully curated flight deals from Ontario to Dublin that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 21, 2026.
Discover carefully curated flight deals from Ontario to Dublin that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 21, 2026.
This Iberia 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/1212:43 pm -
1 stop13h 02m
Wed 10/2812:55 pm -
1 stop15h 16m
Deal found 8/20![Iberia logo]()
$845
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.
Fri 10/27:00 am -
1 stop18h 45m
Fri 10/911:35 am -
1 stop19h 14m
Deal found 8/18![United Airlines logo]()
$1,009
This Icelandair 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/1210:40 am -
2 stops15h 35m
Wed 11/1811:30 am -
2 stops18h 10m
Deal found 8/19![Multiple Airlines logo]()
$1,030
This Icelandair 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/910:40 am -
2 stops15h 35m
Sat 11/1411:30 am -
2 stops17h 30m
Deal found 8/19![Multiple Airlines logo]()
$1,030
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.
Sat 9/127:00 am -
1 stop18h 45m
Mon 9/2111:35 am -
1 stop19h 24m
Deal found 8/18![United Airlines logo]()
$1,149
This Icelandair 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/156:30 am -
2 stops19h 45m
Sat 11/2111:30 am -
2 stops19h 34m
Deal found 8/18![Multiple Airlines logo]()
$1,162
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/275:00 am -
3 stops21h 20m
Tue 1/59:00 am -
2 stops19h 20m
Deal found 8/20![United Airlines logo]()
$1,186
This Icelandair 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/1210:03 am -
2 stops16h 12m
Sat 2/2011:30 am -
2 stops17h 40m
Deal found 8/17![Multiple Airlines logo]()
$1,180
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.
Fri 2/126:00 am -
2 stops17h 30m
Sat 2/2010:40 am -
1 stop16h 04m
Deal found 8/17![United Airlines logo]()
$1,314
This Icelandair 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/157:00 am -
2 stops20h 05m
Wed 9/3012:15 pm -
2 stops17h 50m
Deal found 8/20![Multiple Airlines logo]()
$1,215
This Icelandair 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/1610:47 am -
2 stops18h 28m
Fri 10/212:15 pm -
2 stops19h 09m
Deal found 8/19![Multiple Airlines logo]()
$1,320
This Turkish Airlines deal was found by Cheapflights users on 8/16. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/1310:39 pm -
2 stops57h 26m
Tue 9/295:35 am -
2 stops24h 30m
Deal found 8/16![Multiple Airlines logo]()
$1,342
Last-minute flights from Ontario to DublinDiscover last-minute flight deals from Ontario to Dublin. Data last updated August 21, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to Dublin. Data last updated August 21, 2026 and is based on user searches.
This American Airlines 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2010:29 am -
1 stop15h 16m
Thu 8/2712:40 pm -
1 stop14h 07m
Deal found 8/20![American Airlines logo]()
$916
This Iberia 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/2112:33 pm -
2 stops21h 07m
Fri 8/2812:40 pm -
1 stop18h 19m
Deal found 8/20![Iberia logo]()
$923
This CheapOair 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1010:39 pm -
1 stop26h 21m
Fri 9/1811:30 am -
1 stop17h 27m
Deal found 8/18![JetBlue logo]()
$806
This Expedia 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/1910:39 pm -
1 stop26h 21m
Fri 9/2511:30 am -
1 stop17h 27m
Deal found 8/19![JetBlue logo]()
$792
This Justfly.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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/2310:39 pm -
1 stop26h 21m
Wed 10/711:30 am -
1 stop17h 30m
Deal found 8/17![JetBlue logo]()
$808
This American Airlines 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/236:00 am -
2 stops16h 30m
Wed 10/712:40 pm -
2 stops18h 13m
Deal found 8/20![American Airlines logo]()
$854
This Air Canada 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/235:00 am -
2 stops18h 45m
Wed 10/79:50 am -
2 stops45h 01m
Deal found 8/17![Air Canada logo]()
$928
This American Airlines 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/2812:37 pm -
1 stop13h 08m
Wed 10/1412:40 pm -
1 stop14h 04m
Deal found 8/20![American Airlines logo]()
$895
This Iberia 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/2810:25 am -
1 stop15h 20m
Mon 10/512:40 pm -
1 stop16h 31m
Deal found 8/19![Iberia logo]()
$910
One-way flights from Ontario to DublinSearch for one-way flight options from Ontario to Dublin. Find affordable one-way fares based on user searches. Data last updated August 21, 2026.
Search for one-way flight options from Ontario to Dublin. Find affordable one-way fares based on user searches. Data last updated August 21, 2026.
This FlightHub 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/2110:39 pm -
1 stop26h 21m
Deal found 8/20![JetBlue logo]()
$377
This Priceline 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/1910:39 pm -
1 stop26h 21m
Deal found 8/17![JetBlue logo]()
$386
This Iberia 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/77:05 am -
1 stop18h 40m
Deal found 8/19![Iberia logo]()
$466
This Iberia 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/167:00 am -
1 stop18h 45m
Deal found 8/20![Iberia logo]()
$516
This Expedia 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/811:59 pm -
1 stop25h 01m
Deal found 8/17![JetBlue logo]()
$526
This Icelandair 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/2110:47 am -
2 stops18h 28m
Deal found 8/20![Multiple Airlines logo]()
$528
This KAYAK 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 1/36:00 am -
1 stop21h 25m
Deal found 8/19![Aer Lingus logo]()
$558
This Icelandair 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/227:25 am -
2 stops19h 40m
Deal found 8/18![Multiple Airlines logo]()
$571
This Priceline 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2711:59 pm -
1 stop25h 01m
Deal found 8/20![JetBlue logo]()
$591
This Priceline deal was found by Cheapflights users on 8/16. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/211:59 pm -
1 stop25h 01m
Deal found 8/16![JetBlue logo]()
$592
This FlightHub 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/13:07 pm -
1 stop13h 08m
Deal found 8/20![Multiple Airlines logo]()
$596
This Kissandfly.com 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 Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 1/35:55 am -
2 stops20h 00m
Deal found 8/19![Lufthansa logo]()
$603
Find flight deals from Ontario to Dublin
Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) 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 21, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $775 (Iberia) |
One-way from | $377 (FlightHub) |
Popular in | June |
Cheapest in | February |
Average price | $717 |
Cheapflights Fare Finder
Customize your flight search to find flights from Ontario 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 21, 2026.
Use the filters below to find and compare flights from Ontario to Dublin that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Quickest round-trip
OntarioDublin
ONT Ontario - DUB Dublin
ONTDUB
Ontario
Mon 10/12
12:43 pm-9:45 am
1 stop13h 02m
Dublin
Wed 10/28
12:55 pm-9:11 pm
1 stop15h 16m
$845
OntarioDublin
ONT Ontario - DUB Dublin
ONTDUB
Ontario
Fri 10/2
7:00 am-9:45 am
1 stop18h 45m
Dublin
Fri 10/9
11:35 am-10:49 pm
1 stop19h 14m
$1,009
OntarioDublin
ONT Ontario - DUB Dublin
ONTDUB
Ontario
Thu 11/12
10:40 am-10:15 am
2 stops15h 35m
Dublin
Wed 11/18
11:30 am-9:40 pm
2 stops18h 10m
$1,030
OntarioDublin
ONT Ontario - DUB Dublin
ONTDUB
Ontario
Mon 11/9
10:40 am-10:15 am
2 stops15h 35m
Dublin
Sat 11/14
11:30 am-9:00 pm
2 stops17h 30m
$1,030
OntarioDublin
ONT Ontario - DUB Dublin
ONTDUB
Ontario
Sat 9/12
7:00 am-9:45 am
1 stop18h 45m
Dublin
Mon 9/21
11:35 am-10:59 pm
1 stop19h 24m
$1,149
OntarioDublin
ONT Ontario - DUB Dublin
ONTDUB
Ontario
Sun 11/15
6:30 am-10:15 am
2 stops19h 45m
Dublin
Sat 11/21
11:30 am-11:04 pm
2 stops19h 34m
$1,162
OntarioDublin
ONT Ontario - DUB Dublin
ONTDUB
Ontario
Fri 2/12
10:03 am-10:15 am
2 stops16h 12m
Dublin
Sat 2/20
11:30 am-9:10 pm
2 stops17h 40m
$1,180
OntarioDublin
ONT Ontario - DUB Dublin
ONTDUB
Ontario
Sun 12/27
5:00 am-10:20 am
3 stops21h 20m
Dublin
Tue 1/5
9:00 am-8:20 pm
2 stops19h 20m
$1,186
OntarioDublin
ONT Ontario - DUB Dublin
ONTDUB
Ontario
Tue 9/15
7:00 am-11:05 am
2 stops20h 05m
Dublin
Wed 9/30
12:15 pm-10:05 pm
2 stops17h 50m
$1,215
OntarioDublin
ONT Ontario - DUB Dublin
ONTDUB
Ontario
Fri 2/12
6:00 am-7:30 am
2 stops17h 30m
Dublin
Sat 2/20
10:40 am-6:44 pm
1 stop16h 04m
$1,314
Showing 1-10 of 22 resultsSorted by cheapest first
Compare providers for flights from Ontario 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 Ontario 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 |
- Most accurate provider: When it comes to deals on Ontario-Dublin flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Ontario-Dublin flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Ontario-Dublin flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Ontario-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 Ontario-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 Ontario to Dublin
Have a flexible travel schedule? Discover the best time to fly to Dublin from Ontario with our price prediction graph.
ONT-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.
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 21, 2026.
Peruse reviews from past customers who have flown with American Airlines from Ontario to Dublin to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Crew
7.9
Entertainment
6.8
Boarding
7.5
Comfort
7.2
Overall
7.1
Food
6.4
Reviews
1 / 20
2.0
MediocreJeremy,Sep 2025
SAN - PHL
Crew
7.9
Entertainment
6.8
Boarding
7.5
Comfort
7.2
Overall
7.1
Food
6.4
Reviews
1 / 20
2.0
MediocreJeremy,Sep 2025
SAN - PHL
Related info for your journey
Find useful and relevant information for your journey from Ontario to Dublin. 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 Dublin?
Book flights to Dublin if you plan to visit one of these locationsCastleknock
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
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Complete your trip
Complete your trip to Dublin by adding a car rental and/or hotel reservation to your travel itinerary.
Other flights to Dublin
Explore flights to Dublin departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on August 21, 2026.
Search flights from Ontario to Dublin by cabin class
Find flights from Ontario to Dublin, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Ontario and Dublin flights
Browse other Ontario and Dublin flight options. Last updated on August 21, 2026.
Other flights from Ontario
Browse through other flights departing from Ontario. Flights are based on user searches made on Cheapflights and were last updated on August 21, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top airline flying from Ontario to Dublin
Discover the top airline that operate flights from Ontario 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 21, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$728 | Average$1,339 | FlexibilityNo cancel fee | On-time71% |