$353+ 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 9/11. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — DUB
Sep 5 — Sep 121
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 6, 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 6, 2026.
This JetBlue deal was found by Cheapflights users on 8/3. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/2411:59 pm -
1 stop25h 01m
Wed 9/911:30 am -
1 stop17h 27m
Deal found 8/3![JetBlue logo]()
$734
This KAYAK deal was found by Cheapflights users on 8/3. 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.
Sat 9/511:13 pm -
1 stop25h 47m
Wed 9/1611:30 am -
1 stop17h 27m
Deal found 8/3![JetBlue logo]()
$743
This Ovago deal was found by Cheapflights users on 8/3. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/2411:59 pm -
1 stop25h 01m
Wed 9/211:30 am -
1 stop19h 07m
Deal found 8/3![JetBlue logo]()
$744
This Priceline deal was found by Cheapflights users on 8/4. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/711:59 pm -
1 stop25h 01m
Fri 9/1111:30 am -
1 stop17h 27m
Deal found 8/4![JetBlue logo]()
$745
This KAYAK deal was found by Cheapflights users on 8/3. 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 9/2310:39 pm -
1 stop26h 21m
Wed 10/711:30 am -
1 stop17h 30m
Deal found 8/3![JetBlue logo]()
$759
This Justfly.com deal was found by Cheapflights users on 8/1. 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.
Sun 8/3011:59 pm -
1 stop25h 01m
Sat 9/511:30 am -
1 stop18h 29m
Deal found 8/1![JetBlue logo]()
$761
This BusinessClass deal was found by Cheapflights users on 8/5. 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/1110:39 pm -
1 stop26h 21m
Wed 9/1611:30 am -
1 stop17h 27m
Deal found 8/5![JetBlue logo]()
$767
This Ovago deal was found by Cheapflights users on 8/2. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/910:39 pm -
1 stop26h 21m
Sat 9/1911:30 am -
1 stop17h 27m
Deal found 8/2![JetBlue logo]()
$775
This KAYAK deal was found by Cheapflights users on 8/5. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/1410:39 pm -
1 stop26h 21m
Tue 9/2911:30 am -
1 stop17h 27m
Deal found 8/5![JetBlue logo]()
$790
This Priceline deal was found by Cheapflights users on 8/1. 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 9/910:39 pm -
1 stop26h 21m
Wed 9/2311:30 am -
1 stop17h 27m
Deal found 8/1![JetBlue logo]()
$792
This KAYAK deal was found by Cheapflights users on 8/5. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/811:59 pm -
1 stop25h 01m
Mon 9/1411:30 am -
1 stop17h 27m
Deal found 8/5![JetBlue logo]()
$793
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 6, 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 6, 2026.
This United Airlines deal was found by Cheapflights users on 8/3. 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 11/17:00 am -
1 stop17h 10m
Sat 11/149:00 am -
2 stops17h 01m
Deal found 8/3![United Airlines logo]()
$921
This KLM deal was found by Cheapflights users on 8/3. 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.
Wed 9/237:05 am -
1 stop17h 40m
Wed 10/711:10 am -
2 stops19h 33m
Deal found 8/3![KLM logo]()
$956
This United Airlines deal was found by Cheapflights users on 8/5. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/257:00 am -
1 stop18h 45m
Tue 9/19:50 am -
2 stops44h 45m
Deal found 8/5![United Airlines logo]()
$928
This United Airlines deal was found by Cheapflights users on 8/5. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/247:00 am -
1 stop18h 45m
Tue 9/19:50 am -
2 stops44h 45m
Deal found 8/5![United Airlines logo]()
$928
This United Airlines deal was found by Cheapflights users on 8/3. 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 9/57:00 am -
1 stop18h 45m
Sat 9/129:20 am -
2 stops42h 41m
Deal found 8/3![United Airlines logo]()
$948
This United Airlines deal was found by Cheapflights users on 8/5. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/267:00 am -
1 stop18h 45m
Fri 9/49:20 am -
2 stops21h 15m
Deal found 8/5![United Airlines logo]()
$956
This United Airlines deal was found by Cheapflights users on 8/2. 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 9/235:00 am -
3 stops18h 45m
Wed 10/79:20 am -
2 stops21h 31m
Deal found 8/2![United Airlines logo]()
$959
This United Airlines deal was found by Cheapflights users on 8/5. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/267:00 am -
2 stops16h 45m
Wed 9/29:20 am -
2 stops21h 15m
Deal found 8/5![United Airlines logo]()
$959
This United Airlines deal was found by Cheapflights users on 8/5. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/267:00 am -
1 stop18h 45m
Sat 9/59:50 am -
2 stops20h 45m
Deal found 8/5![United Airlines logo]()
$1,001
This United Airlines deal was found by Cheapflights users on 8/1. 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 9/255:00 am -
3 stops18h 45m
Tue 10/69:50 am -
2 stops20h 59m
Deal found 8/1![United Airlines logo]()
$1,009
This United Airlines deal was found by Cheapflights users on 8/3. 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.
Thu 9/177:00 am -
1 stop18h 45m
Mon 9/219:20 am -
2 stops36h 41m
Deal found 8/3![United Airlines logo]()
$1,038
Last-minute flights from Ontario to DublinDiscover last-minute flight deals from Ontario to Dublin. Data last updated August 6, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to Dublin. Data last updated August 6, 2026 and is based on user searches.
This JetBlue deal was found by Cheapflights users on 8/3. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/2411:59 pm -
1 stop25h 01m
Wed 9/911:30 am -
1 stop17h 27m
Deal found 8/3![JetBlue logo]()
$734
This Ovago deal was found by Cheapflights users on 8/3. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/2411:59 pm -
1 stop25h 01m
Wed 9/211:30 am -
1 stop19h 07m
Deal found 8/3![JetBlue logo]()
$744
This Justfly.com deal was found by Cheapflights users on 8/1. 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.
Sun 8/3011:59 pm -
1 stop25h 01m
Sat 9/511:30 am -
1 stop18h 29m
Deal found 8/1![JetBlue logo]()
$761
This KAYAK deal was found by Cheapflights users on 8/3. 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.
Sat 9/511:13 pm -
1 stop25h 47m
Wed 9/1611:30 am -
1 stop17h 27m
Deal found 8/3![JetBlue logo]()
$743
This Priceline deal was found by Cheapflights users on 8/4. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/711:59 pm -
1 stop25h 01m
Fri 9/1111:30 am -
1 stop17h 27m
Deal found 8/4![JetBlue logo]()
$745
This KAYAK deal was found by Cheapflights users on 8/5. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/811:59 pm -
1 stop25h 01m
Mon 9/1411:30 am -
1 stop17h 27m
Deal found 8/5![JetBlue logo]()
$793
This Ovago deal was found by Cheapflights users on 8/2. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/910:39 pm -
1 stop26h 21m
Sat 9/1911:30 am -
1 stop17h 27m
Deal found 8/2![JetBlue logo]()
$775
This Priceline deal was found by Cheapflights users on 8/1. 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 9/910:39 pm -
1 stop26h 21m
Wed 9/2311:30 am -
1 stop17h 27m
Deal found 8/1![JetBlue logo]()
$792
This BusinessClass deal was found by Cheapflights users on 8/5. 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/1110:39 pm -
1 stop26h 21m
Wed 9/1611:30 am -
1 stop17h 27m
Deal found 8/5![JetBlue logo]()
$767
This KAYAK deal was found by Cheapflights users on 8/5. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/1410:39 pm -
1 stop26h 21m
Tue 9/2911:30 am -
1 stop17h 27m
Deal found 8/5![JetBlue logo]()
$790
This KAYAK deal was found by Cheapflights users on 8/3. 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 9/2310:39 pm -
1 stop26h 21m
Wed 10/711:30 am -
1 stop17h 30m
Deal found 8/3![JetBlue logo]()
$759
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 6, 2026.
Search for one-way flight options from Ontario to Dublin. Find affordable one-way fares based on user searches. Data last updated August 6, 2026.
This KAYAK deal was found by Cheapflights users on 8/4. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/1110:39 pm -
1 stop26h 21m
Deal found 8/4![JetBlue logo]()
$353
This Ovago deal was found by Cheapflights users on 8/3. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/2411:59 pm -
1 stop25h 01m
Deal found 8/3![JetBlue logo]()
$354
This Justfly.com deal was found by Cheapflights users on 8/2. 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.
Tue 9/111:59 pm -
1 stop25h 01m
Deal found 8/2![JetBlue logo]()
$355
This Justfly.com deal was found by Cheapflights users on 8/1. 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.
Sun 8/3011:59 pm -
1 stop25h 01m
Deal found 8/1![JetBlue logo]()
$370
This KAYAK deal was found by Cheapflights users on 8/5. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/410:39 pm -
1 stop26h 21m
Deal found 8/5![JetBlue logo]()
$384
This Ovago deal was found by Cheapflights users on 8/4. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1710:39 pm -
1 stop26h 21m
Deal found 8/4![JetBlue logo]()
$385
This Priceline deal was found by Cheapflights users on 8/5. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1010:39 pm -
1 stop26h 21m
Deal found 8/5![JetBlue logo]()
$386
This FlightHub deal was found by Cheapflights users on 8/5. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/1510:39 pm -
1 stop26h 21m
Deal found 8/5![JetBlue logo]()
$395
This Justfly.com deal was found by Cheapflights users on 8/2. 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 9/211:59 pm -
1 stop25h 01m
Deal found 8/2![JetBlue logo]()
$407
This Expedia deal was found by Cheapflights users on 8/3. 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 8/2811:59 pm -
1 stop25h 01m
Deal found 8/3![JetBlue logo]()
$416
This Justfly.com deal was found by Cheapflights users on 8/1. 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.
Thu 8/2711:59 pm -
1 stop25h 01m
Deal found 8/1![JetBlue logo]()
$426
This Ovago deal was found by Cheapflights users on 8/3. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/2311:59 pm -
1 stop25h 01m
Deal found 8/3![JetBlue logo]()
$452
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 6, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $734 (JetBlue) |
One-way from | $353 (KAYAK) |
Popular in | June |
Cheapest in | February |
Average price | $701 |
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 2,558,603 searches. Data last updated August 6, 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
Sun 11/1
7:00 am-8:10 am
1 stop17h 10m
Dublin
Sat 11/14
9:00 am-6:01 pm
2 stops17h 01m
$921
OntarioDublin
ONT Ontario - DUB Dublin
ONTDUB
Ontario
Tue 8/25
7:00 am-9:45 am
1 stop18h 45m
Dublin
Tue 9/1
9:50 am-10:35 pm
2 stops44h 45m
$928
OntarioDublin
ONT Ontario - DUB Dublin
ONTDUB
Ontario
Mon 8/24
7:00 am-9:45 am
1 stop18h 45m
Dublin
Tue 9/1
9:50 am-10:35 pm
2 stops44h 45m
$928
OntarioDublin
ONT Ontario - DUB Dublin
ONTDUB
Ontario
Sat 9/5
7:00 am-9:45 am
1 stop18h 45m
Dublin
Sat 9/12
9:20 am-8:01 pm
2 stops42h 41m
$948
OntarioDublin
ONT Ontario - DUB Dublin
ONTDUB
Ontario
Wed 9/23
7:05 am-8:45 am
1 stop17h 40m
Dublin
Wed 10/7
11:10 am-10:43 pm
2 stops19h 33m
$956
OntarioDublin
ONT Ontario - DUB Dublin
ONTDUB
Ontario
Wed 8/26
7:00 am-9:45 am
1 stop18h 45m
Dublin
Fri 9/4
9:20 am-10:35 pm
2 stops21h 15m
$956
OntarioDublin
ONT Ontario - DUB Dublin
ONTDUB
Ontario
Wed 9/23
5:00 am-7:45 am
3 stops18h 45m
Dublin
Wed 10/7
9:20 am-10:51 pm
2 stops21h 31m
$959
OntarioDublin
ONT Ontario - DUB Dublin
ONTDUB
Ontario
Wed 8/26
7:00 am-7:45 am
2 stops16h 45m
Dublin
Wed 9/2
9:20 am-10:35 pm
2 stops21h 15m
$959
OntarioDublin
ONT Ontario - DUB Dublin
ONTDUB
Ontario
Wed 8/26
7:00 am-9:45 am
1 stop18h 45m
Dublin
Sat 9/5
9:50 am-10:35 pm
2 stops20h 45m
$1,001
OntarioDublin
ONT Ontario - DUB Dublin
ONTDUB
Ontario
Fri 9/25
5:00 am-7:45 am
3 stops18h 45m
Dublin
Tue 10/6
9:50 am-10:49 pm
2 stops20h 59m
$1,009
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 6, 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.
Boarding
7.5
Overall
7.1
Comfort
7.2
Food
6.4
Crew
7.9
Entertainment
6.8
Reviews
1 / 20
2.0
MediocreJeremy,Sep 2025
SAN - PHL
Boarding
7.5
Overall
7.1
Comfort
7.2
Food
6.4
Crew
7.9
Entertainment
6.8
Reviews
1 / 20
2.0
MediocreJeremy,Sep 2025
SAN - PHL
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Top airline flying from Ontario to Dublin
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| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$728 | Average$1,339 | FlexibilityNo cancel fee | On-time71% |