$329+ Cheap flights from Ontario (ONT) to Dublin (DUB)
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 1/10. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — DUB
Oct 4 — Oct 111
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
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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
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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 September 4, 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 September 4, 2026.
This KLM deal was found by Cheapflights users on 9/1. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/27:05 am -
1 stop16h 40m
Tue 12/89:40 am -
1 stop19h 19m
Deal found 9/1![KLM logo]()
$707
This Justfly.com deal was found by Cheapflights users on 9/1. 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.
Tue 12/12:09 pm -
2 stops18h 46m
Tue 12/811:00 am -
2 stops19h 12m
Deal found 9/1![British Airways logo]()
$714
This United Airlines deal was found by Cheapflights users on 8/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/37:00 am -
1 stop17h 10m
Thu 11/129:00 am -
2 stops35h 29m
Deal found 8/30![United Airlines logo]()
$748
This Expedia deal was found by Cheapflights users on 8/30. 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 11/247:00 am -
1 stop16h 10m
Wed 12/210:00 am -
2 stops31h 40m
Deal found 8/30![Iberia logo]()
$752
This Orbitz deal was found by Cheapflights users on 8/30. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/31:35 pm -
2 stops33h 35m
Thu 11/129:00 am -
2 stops21h 48m
Deal found 8/30![Air Canada logo]()
$768
This Iberia deal was found by Cheapflights users on 8/31. 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.
Tue 10/2010:25 am -
1 stop15h 20m
Thu 11/512:55 pm -
1 stop16h 37m
Deal found 8/31![Iberia logo]()
$772
This Expedia deal was found by Cheapflights users on 8/31. 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 10/911:05 pm -
1 stop25h 55m
Sat 10/1711:30 am -
1 stop18h 15m
Deal found 8/31![JetBlue logo]()
$774
This KLM deal was found by Cheapflights users on 9/1. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/107:05 am -
1 stop16h 40m
Tue 11/179:40 am -
1 stop19h 14m
Deal found 9/1![KLM logo]()
$775
This Priceline deal was found by Cheapflights users on 9/1. 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.
Tue 9/2210:39 pm -
1 stop26h 21m
Wed 9/3011:30 am -
1 stop17h 27m
Deal found 9/1![JetBlue logo]()
$792
This Delta deal was found by Cheapflights users on 8/30. 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 12/257:05 am -
1 stop16h 40m
Thu 12/315:45 am -
2 stops24h 14m
Deal found 8/30![Delta logo]()
$807
This FlightHub deal was found by Cheapflights users on 9/3. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/1111:05 pm -
1 stop25h 55m
Fri 10/1611:30 am -
1 stop18h 44m
Deal found 9/3![JetBlue logo]()
$808
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 September 4, 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 September 4, 2026.
This KLM deal was found by Cheapflights users on 8/30. 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 2/217:00 am -
1 stop16h 45m
Wed 3/39:40 am -
1 stop20h 34m
Deal found 8/30![KLM logo]()
$712
This United Airlines deal was found by Cheapflights users on 9/3. 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 1/76:00 am -
2 stops17h 30m
Wed 1/1310:40 am -
1 stop16h 04m
Deal found 9/3![United Airlines logo]()
$762
This Icelandair deal was found by Cheapflights users on 9/3. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1010:40 am -
2 stops15h 35m
Fri 11/2011:30 am -
2 stops20h 01m
Deal found 9/3![Multiple Airlines logo]()
$1,013
This KLM deal was found by Cheapflights users on 8/31. 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.
Tue 10/207:07 am -
1 stop17h 38m
Sun 11/89:40 am -
1 stop16h 42m
Deal found 8/31![KLM logo]()
$818
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.
Wed 10/147:00 am -
2 stops16h 20m
Wed 10/2810:40 am -
1 stop15h 07m
Deal found 9/4![United Airlines logo]()
$849
This United Airlines deal was found by Cheapflights users on 8/30. 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 10/157:00 am -
2 stops16h 30m
Thu 10/229:50 am -
2 stops43h 08m
Deal found 8/30![United Airlines logo]()
$877
This United Airlines deal was found by Cheapflights users on 9/3. 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.
Mon 10/197:00 am -
1 stop18h 45m
Mon 10/268:00 am -
2 stops41h 01m
Deal found 9/3![United Airlines logo]()
$878
This Icelandair deal was found by Cheapflights users on 9/1. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/711:25 am -
2 stops14h 50m
Tue 2/1611:30 am -
2 stops19h 09m
Deal found 9/1![Multiple Airlines logo]()
$1,107
This United Airlines deal was found by Cheapflights users on 9/1. 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.
Wed 9/237:00 am -
1 stop18h 45m
Wed 10/79:20 am -
2 stops45h 29m
Deal found 9/1![United Airlines logo]()
$940
This United Airlines deal was found by Cheapflights users on 9/2. 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.
Fri 10/237:00 am -
1 stop18h 45m
Sat 10/3110:40 am -
1 stop15h 07m
Deal found 9/2![United Airlines logo]()
$955
This United Airlines deal was found by Cheapflights users on 8/30. 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 9/217:00 am -
1 stop18h 45m
Thu 10/111:35 am -
1 stop19h 14m
Deal found 8/30![United Airlines logo]()
$967
Last-minute flights from Ontario to DublinDiscover last-minute flight deals from Ontario to Dublin. Data last updated September 4, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to Dublin. Data last updated September 4, 2026 and is based on user searches.
This Priceline deal was found by Cheapflights users on 9/1. 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.
Tue 9/2210:39 pm -
1 stop26h 21m
Wed 9/3011:30 am -
1 stop17h 27m
Deal found 9/1![JetBlue logo]()
$792
This Expedia deal was found by Cheapflights users on 8/31. 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 10/911:05 pm -
1 stop25h 55m
Sat 10/1711:30 am -
1 stop18h 15m
Deal found 8/31![JetBlue logo]()
$774
This FlightHub deal was found by Cheapflights users on 9/3. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/1111:05 pm -
1 stop25h 55m
Fri 10/1611:30 am -
1 stop18h 44m
Deal found 9/3![JetBlue logo]()
$808
This Air Canada deal was found by Cheapflights users on 8/30. 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.
Mon 10/126:07 am -
2 stops41h 38m
Tue 10/209:50 am -
2 stops43h 08m
Deal found 8/30![Air Canada logo]()
$823
This United Airlines deal was found by Cheapflights users on 9/2. 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.
Mon 10/126:00 am -
2 stops17h 30m
Tue 10/209:50 am -
2 stops44h 59m
Deal found 9/2![United Airlines logo]()
$827
This Air Canada 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/135:00 am -
2 stops19h 15m
Sun 11/19:00 am -
2 stops19h 51m
Deal found 9/4![Air Canada logo]()
$822
This Delta deal was found by Cheapflights users on 9/3. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/137:07 am -
1 stop17h 38m
Mon 11/29:40 am -
1 stop33h 26m
Deal found 9/3![Delta logo]()
$832
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/147:07 am -
1 stop17h 38m
Tue 10/271:25 pm -
2 stops33h 58m
Deal found 9/4![Delta logo]()
$841
This Delta deal was found by Cheapflights users on 9/3. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/147:07 am -
1 stop17h 38m
Wed 10/285:45 am -
2 stops18h 27m
Deal found 9/3![Delta logo]()
$842
This Iberia deal was found by Cheapflights users on 8/31. 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.
Tue 10/2010:25 am -
1 stop15h 20m
Thu 11/512:55 pm -
1 stop16h 37m
Deal found 8/31![Iberia logo]()
$772
This Air Canada deal was found by Cheapflights users on 8/31. 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.
Tue 10/208:03 am -
2 stops15h 42m
Sat 11/79:00 am -
2 stops17h 01m
Deal found 8/31![Multiple Airlines logo]()
$814
This KLM deal was found by Cheapflights users on 8/31. 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.
Tue 10/207:07 am -
1 stop17h 38m
Sun 11/89:40 am -
1 stop16h 42m
Deal found 8/31![KLM logo]()
$818
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 September 4, 2026.
Search for one-way flight options from Ontario to Dublin. Find affordable one-way fares based on user searches. Data last updated September 4, 2026.
This United Airlines deal was found by Cheapflights users on 9/2. 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.
Sun 1/106:53 pm -
3 stops28h 37m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/2![United Airlines logo]()
$329
This United Airlines deal was found by Cheapflights users on 9/2. 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.
Mon 1/1111:20 am -
3 stops36h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/2![United Airlines logo]()
$335
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.
Wed 12/95:00 am -
3 stops18h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/4![United Airlines logo]()
$338
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/115:04 pm -
2 stops55h 41m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/4![Delta logo]()
$351
This Kiwi.com deal was found by Cheapflights users on 9/2. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/1711:52 am -
3 stops48h 23m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/2![Multiple Airlines logo]()
$359
This Expedia deal was found by Cheapflights users on 9/2. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/1710:42 pm -
1 stop26h 18m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/2![JetBlue logo]()
$374
This Expedia deal was found by Cheapflights users on 9/3. 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 10/1611:05 pm -
1 stop25h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![JetBlue logo]()
$375
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.
Thu 12/106:00 am -
2 stops18h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/4![United Airlines logo]()
$379
This Priceline deal was found by Cheapflights users on 9/3. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/610:42 pm -
1 stop26h 18m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![JetBlue logo]()
$386
This United Airlines deal was found by Cheapflights users on 9/2. 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.
Thu 1/75:00 am -
3 stops18h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/2![United Airlines logo]()
$388
This United Airlines deal was found by Cheapflights users on 9/2. 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.
Fri 1/811:20 am -
3 stops36h 50m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/2![United Airlines logo]()
$403
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 September 4, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $707 (KLM) |
One-way from | $329 (United Airlines) |
Popular in | June |
Cheapest in | February |
Average price | $818 |
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 September 4, 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
OntarioDublin
ONT Ontario - DUB Dublin
ONTDUB
Ontario
Sun 12/13
7:00 am-8:10 am
1 stop17h 10m
Dublin
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$329
OntarioDublin
ONT Ontario - DUB Dublin
ONTDUB
Ontario
Tue 12/8
7:05 am-9:45 am
2 stops18h 40m
Dublin
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$329
OntarioDublin
ONT Ontario - DUB Dublin
ONTDUB
Ontario
Sun 10/18
11:05 pm-9:00 am
1 stop25h 55m
Dublin
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$386
Quickest round-trip
OntarioDublin
ONT Ontario - DUB Dublin
ONTDUB
Ontario
Wed 11/11
7:00 am-7:10 am
1 stop16h 10m
Dublin
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$466
OntarioDublin
ONT Ontario - DUB Dublin
ONTDUB
Ontario
Sun 11/8
7:07 am-7:45 am
1 stop16h 38m
Dublin
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$466
OntarioDublin
ONT Ontario - DUB Dublin
ONTDUB
Ontario
Sun 10/18
6:07 am-11:10 am
2 stops21h 03m
Dublin
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$466
OntarioDublin
ONT Ontario - DUB Dublin
ONTDUB
Ontario
Sun 11/8
6:00 am-7:30 am
2 stops17h 30m
Dublin
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$466
OntarioDublin
ONT Ontario - DUB Dublin
ONTDUB
Ontario
Wed 11/11
6:00 am-9:55 am
2 stops19h 55m
Dublin
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$466
OntarioDublin
ONT Ontario - DUB Dublin
ONTDUB
Ontario
Tue 9/15
7:00 am-9:45 am
1 stop18h 45m
Dublin
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$466
OntarioDublin
ONT Ontario - DUB Dublin
ONTDUB
Ontario
Tue 10/6
8:03 am-9:45 am
2 stops17h 42m
Dublin
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$466
Showing 1-10 of 21 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 September.
| 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 September 4, 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
Comfort
7.2
Overall
7.1
Boarding
7.5
Food
6.4
Entertainment
6.8
Reviews
1 / 20
2.0
MediocreJeremy,Sep 2025
SAN - PHL
Crew
7.9
Comfort
7.2
Overall
7.1
Boarding
7.5
Food
6.4
Entertainment
6.8
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
Bray
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Ontario and Dublin flights
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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 September 4, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$728 | Average$1,339 | FlexibilityNo cancel fee | On-time71% |