$420+ 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 10/16. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — DUB
Jun 30 — Jul 71
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
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 May 31, 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 May 31, 2026.
This Kiwi.com deal was found by Cheapflights users on 5/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/188:33 pm
ONT
- DUB
1 stop31h 12m
Multiple Airlines
Sun 8/3010:40 am
DUB
- ONT
2 stops36h 29m
Multiple Airlines
Deal found 5/28![Multiple Airlines logo]()
$823
This Kiwi.com deal was found by Cheapflights users on 5/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/188:33 pm
ONT
- DUB
1 stop31h 12m
Multiple Airlines
Mon 8/3110:40 am
DUB
- ONT
2 stops36h 29m
Multiple Airlines
Deal found 5/28![Multiple Airlines logo]()
$835
This Kiwi.com deal was found by Cheapflights users on 5/28. 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.
Mon 8/178:58 am
ONT
- DUB
1 stop18h 47m
Multiple Airlines
Sun 8/3010:40 am
DUB
- ONT
2 stops36h 29m
Multiple Airlines
Deal found 5/28![Multiple Airlines logo]()
$836
This Kiwi.com deal was found by Cheapflights users on 5/28. 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.
Mon 8/178:58 am
ONT
- DUB
1 stop18h 47m
Multiple Airlines
Mon 8/3110:40 am
DUB
- ONT
2 stops36h 29m
Multiple Airlines
Deal found 5/28![Multiple Airlines logo]()
$847
This Kiwi.com deal was found by Cheapflights users on 5/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/188:33 pm
ONT
- DUB
1 stop31h 12m
Multiple Airlines
Fri 9/412:15 pm
DUB
- ONT
2 stops34h 54m
Multiple Airlines
Deal found 5/28![Multiple Airlines logo]()
$864
This Delta deal was found by Cheapflights users on 5/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/307:00 am
ONT
- DUB
1 stop16h 45m
Delta
Thu 12/108:50 am
DUB
- ONT
2 stops21h 24m
Delta
Deal found 5/28![Delta logo]()
$872
This KLM deal was found by Cheapflights users on 5/27. 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 11/157:00 am
ONT
- DUB
1 stop16h 45m
KLM
Tue 11/249:40 am
DUB
- ONT
1 stop16h 38m
KLM
Deal found 5/27![KLM logo]()
$875
This United Airlines deal was found by Cheapflights users on 5/28. 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 12/25:00 am
ONT
- DUB
2 stops18h 30m
United Airlines
Fri 12/111:35 pm
DUB
- ONT
2 stops30h 45m
United Airlines
Deal found 5/28![United Airlines logo]()
$879
This Iberia deal was found by Cheapflights users on 5/28. 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 9/812:33 pm
ONT
- DUB
1 stop13h 12m
Iberia
Tue 9/1512:40 pm
DUB
- ONT
1 stop14h 13m
Iberia
Deal found 5/28![Iberia logo]()
$880
This Kiwi.com deal was found by Cheapflights users on 5/28. 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 8/158:58 am
ONT
- DUB
1 stop18h 47m
Multiple Airlines
Sun 8/3010:40 am
DUB
- ONT
2 stops36h 29m
Multiple Airlines
Deal found 5/28![Multiple Airlines logo]()
$891
This Icelandair deal was found by Cheapflights users on 5/28. 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 11/1010:37 am
ONT
- DUB
2 stops15h 38m
Multiple Airlines
Tue 11/1711:30 am
DUB
- ONT
2 stops19h 24m
Multiple Airlines
Deal found 5/28![Multiple Airlines logo]()
$895
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 May 31, 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 May 31, 2026.
This JetBlue deal was found by Cheapflights users on 5/27. 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.
Sun 7/511:59 pm
ONT
- DUB
1 stop25h 01m
JetBlue
Tue 7/2111:30 am
DUB
- ONT
1 stop19h 05m
JetBlue
Deal found 5/27![JetBlue logo]()
$977
This United Airlines deal was found by Cheapflights users on 5/29. 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 7/146:10 am
ONT
- DUB
2 stops21h 00m
United Airlines
Tue 7/219:50 am
DUB
- ONT
2 stops45h 01m
United Airlines
Deal found 5/29![United Airlines logo]()
$1,008
This Icelandair deal was found by Cheapflights users on 5/28. 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 10/222:14 pm
ONT
- DUB
2 stops39h 01m
Icelandair
Sat 10/3111:30 am
DUB
- ONT
2 stops19h 12m
Icelandair
Deal found 5/28![Icelandair logo]()
$1,024
This KLM deal was found by Cheapflights users on 5/30. 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.
Thu 11/127:00 am
ONT
- DUB
1 stop16h 45m
KLM
Mon 11/309:45 am
DUB
- ONT
1 stop16h 33m
KLM
Deal found 5/30![KLM logo]()
$1,065
This Icelandair deal was found by Cheapflights users on 5/27. 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 10/52:14 pm
ONT
- DUB
2 stops36h 51m
Multiple Airlines
Mon 10/192:15 pm
DUB
- ONT
2 stops17h 27m
Multiple Airlines
Deal found 5/27![Multiple Airlines logo]()
$1,091
This Delta deal was found by Cheapflights users on 5/30. 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.
Sat 7/257:05 am
ONT
- DUB
1 stop17h 40m
Delta
Sun 8/211:00 am
DUB
- ONT
1 stop18h 50m
Delta
Deal found 5/30![Delta logo]()
$1,160
This Icelandair deal was found by Cheapflights users on 5/30. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/53:07 pm
ONT
- DUB
2 stops38h 08m
Multiple Airlines
Fri 9/1112:15 pm
DUB
- ONT
2 stops19h 09m
Multiple Airlines
Deal found 5/30![Multiple Airlines logo]()
$1,106
This JetBlue deal was found by Cheapflights users on 5/29. 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 7/611:47 pm
ONT
- DUB
1 stop25h 13m
JetBlue
Wed 7/2211:30 am
DUB
- ONT
1 stop19h 05m
JetBlue
Deal found 5/29![JetBlue logo]()
$1,108
This Delta deal was found by Cheapflights users on 5/30. 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 7/2411:48 am
ONT
- DUB
1 stop12h 57m
Delta
Sun 8/211:00 am
DUB
- ONT
2 stops20h 48m
Delta
Deal found 5/30![Delta logo]()
$1,164
This KLM deal was found by Cheapflights users on 5/28. 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.
Sat 10/2412:00 pm
ONT
- DUB
1 stop12h 45m
KLM
Sat 10/319:40 am
DUB
- ONT
1 stop15h 38m
KLM
Deal found 5/28![KLM logo]()
$1,167
This Turkish Airlines deal was found by Cheapflights users on 5/26. 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.
Mon 9/219:10 pm
ONT
- DUB
2 stops58h 50m
Multiple Airlines
Mon 9/285:55 am
DUB
- ONT
2 stops25h 29m
Multiple Airlines
Deal found 5/26![Multiple Airlines logo]()
$1,111
This Delta deal was found by Cheapflights users on 5/26. 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 7/511:50 am
ONT
- DUB
1 stop12h 55m
Delta
Tue 7/2111:00 am
DUB
- ONT
1 stop15h 30m
Delta
Deal found 5/26![Delta logo]()
$1,250
Last-minute flights from Ontario to DublinDiscover last-minute flight deals from Ontario to Dublin. Data last updated May 31, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to Dublin. Data last updated May 31, 2026 and is based on user searches.
This KAYAK deal was found by Cheapflights users on 5/28. 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 5/3010:41 pm
ONT
- DUB
1 stop26h 19m
JetBlue
Tue 9/111:30 am
DUB
- ONT
1 stop19h 05m
JetBlue
Deal found 5/28![JetBlue logo]()
$955
This Ovago deal was found by Cheapflights users on 5/30. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/3010:41 pm
ONT
- DUB
1 stop26h 19m
JetBlue
Fri 6/511:30 am
DUB
- ONT
1 stop17h 17m
JetBlue
Deal found 5/30![JetBlue logo]()
$987
This KAYAK deal was found by Cheapflights users on 5/29. 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 5/3010:41 pm
ONT
- DUB
1 stop26h 19m
JetBlue
Sat 6/611:30 am
DUB
- ONT
1 stop17h 17m
JetBlue
Deal found 5/29![JetBlue logo]()
$1,069
This Orbitz deal was found by Cheapflights users on 5/28. 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.
Sat 5/305:57 pm
ONT
- DUB
2 stops59h 18m
Multiple Airlines
Tue 9/12:15 pm
DUB
- ONT
2 stops28h 49m
Multiple Airlines
Deal found 5/28![Multiple Airlines logo]()
$1,096
This Icelandair deal was found by Cheapflights users on 5/30. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/36:00 am
ONT
- DUB
2 stops23h 15m
Multiple Airlines
Tue 6/162:15 pm
DUB
- ONT
2 stops16h 56m
Multiple Airlines
Deal found 5/30![Multiple Airlines logo]()
$1,084
This Icelandair deal was found by Cheapflights users on 5/31. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/105:54 pm
ONT
- DUB
2 stops33h 11m
Multiple Airlines
Wed 7/2212:15 pm
DUB
- ONT
2 stops36h 37m
Multiple Airlines
Deal found 5/31![Multiple Airlines logo]()
$1,087
This Justfly.com deal was found by Cheapflights users on 5/27. 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 6/1010:41 pm
ONT
- DUB
1 stop26h 19m
JetBlue
Tue 6/3011:30 am
DUB
- ONT
1 stop19h 13m
JetBlue
Deal found 5/27![JetBlue logo]()
$1,099
This SmartFares deal was found by Cheapflights users on 5/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/1211:58 pm
ONT
- DUB
1 stop25h 02m
JetBlue
Tue 6/1611:30 am
DUB
- ONT
1 stop19h 13m
JetBlue
Deal found 5/27![JetBlue logo]()
$1,034
This Ovago deal was found by Cheapflights users on 5/27. 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.
Fri 6/1211:58 pm
ONT
- DUB
1 stop25h 02m
JetBlue
Tue 6/3011:30 am
DUB
- ONT
1 stop19h 13m
JetBlue
Deal found 5/27![JetBlue logo]()
$1,098
This KAYAK deal was found by Cheapflights users on 5/27. 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 6/1211:58 pm
ONT
- DUB
1 stop25h 02m
JetBlue
Fri 6/2611:30 am
DUB
- ONT
1 stop19h 09m
JetBlue
Deal found 5/27![JetBlue logo]()
$1,122
This KAYAK deal was found by Cheapflights users on 5/27. 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 6/1311:16 pm
ONT
- DUB
1 stop25h 44m
JetBlue
Wed 7/2211:30 am
DUB
- ONT
1 stop19h 05m
JetBlue
Deal found 5/27![JetBlue logo]()
$1,083
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 May 31, 2026.
Search for one-way flight options from Ontario to Dublin. Find affordable one-way fares based on user searches. Data last updated May 31, 2026.
This Kiwi.com deal was found by Cheapflights users on 5/27. 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.
Fri 10/165:05 pm
ONT
- DUB
3 stops44h 05m
Multiple Airlines
Deal found 5/27![Multiple Airlines logo]()
$420
This Super.com deal was found by Cheapflights users on 5/27. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/1411:51 pm
ONT
- DUB
1 stop25h 09m
JetBlue
Deal found 5/27![JetBlue logo]()
$426
This Super.com deal was found by Cheapflights users on 5/27. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/711:49 pm
ONT
- DUB
1 stop25h 11m
JetBlue
Deal found 5/27![JetBlue logo]()
$428
This Expedia deal was found by Cheapflights users on 5/26. 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 7/1011:51 pm
ONT
- DUB
1 stop25h 09m
JetBlue
Deal found 5/26![JetBlue logo]()
$436
This Justfly.com deal was found by Cheapflights users on 5/27. 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.
Sat 7/2511:18 pm
ONT
- DUB
1 stop25h 42m
JetBlue
Deal found 5/27![JetBlue logo]()
$448
This Super.com deal was found by Cheapflights users on 5/30. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/1511:51 pm
ONT
- DUB
1 stop25h 09m
JetBlue
Deal found 5/30![JetBlue logo]()
$465
This Kiwi.com deal was found by Cheapflights users on 5/26. 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.
Fri 7/103:40 pm
ONT
- DUB
3 stops58h 25m
Multiple Airlines
Deal found 5/26![Multiple Airlines logo]()
$473
This Cheapflightsfares deal was found by Cheapflights users on 5/30. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/1711:51 pm
ONT
- DUB
1 stop25h 09m
JetBlue
Deal found 5/30![JetBlue logo]()
$478
This Icelandair deal was found by Cheapflights users on 5/26. 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 9/303:14 pm
ONT
- DUB
2 stops35h 51m
Icelandair
Deal found 5/26![Icelandair logo]()
$490
This Icelandair deal was found by Cheapflights users on 5/27. 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 7/2810:54 am
ONT
- DUB
2 stops16h 11m
Multiple Airlines
Deal found 5/27![Multiple Airlines logo]()
$496
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 May 31, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $823 (Kiwi.com) |
One-way from | $420 (Kiwi.com) |
Popular in | June |
Cheapest in | February |
Average price | $911 |
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 May 31, 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 - DUB
ONTDUB
Ontario
Sun 7/5
11:59 pm-9:00 am
1 stop25h 01m
Dublin
Tue 7/21
11:30 am-10:35 pm
1 stop19h 05m
$977
OntarioDublin
ONT - DUB
ONTDUB
Ontario
Tue 7/14
6:10 am-11:10 am
2 stops21h 00m
Dublin
Tue 7/21
9:50 am-10:51 pm
2 stops45h 01m
$1,008
OntarioDublin
ONT - DUB
ONTDUB
Ontario
Thu 10/22
2:14 pm-1:15 pm
2 stops39h 01m
Dublin
Sat 10/31
11:30 am-11:42 pm
2 stops19h 12m
$1,024
OntarioDublin
ONT - DUB
ONTDUB
Ontario
Thu 11/12
7:00 am-7:45 am
1 stop16h 45m
Dublin
Mon 11/30
9:45 am-6:18 pm
1 stop16h 33m
$1,065
OntarioDublin
ONT - DUB
ONTDUB
Ontario
Mon 10/5
2:14 pm-11:05 am
2 stops36h 51m
Dublin
Mon 10/19
2:15 pm-11:42 pm
2 stops17h 27m
$1,091
OntarioDublin
ONT - DUB
ONTDUB
Ontario
Sat 9/5
3:07 pm-1:15 pm
2 stops38h 08m
Dublin
Fri 9/11
12:15 pm-11:24 pm
2 stops19h 09m
$1,106
OntarioDublin
ONT - DUB
ONTDUB
Ontario
Mon 7/6
11:47 pm-9:00 am
1 stop25h 13m
Dublin
Wed 7/22
11:30 am-10:35 pm
1 stop19h 05m
$1,108
OntarioDublin
ONT - DUB
ONTDUB
Ontario
Mon 9/21
9:10 pm-4:00 pm
2 stops58h 50m
Dublin
Mon 9/28
5:55 am-11:24 pm
2 stops25h 29m
$1,111
OntarioDublin
ONT - DUB
ONTDUB
Ontario
Sat 7/25
7:05 am-8:45 am
1 stop17h 40m
Dublin
Sun 8/2
11:00 am-9:50 pm
1 stop18h 50m
$1,160
OntarioDublin
ONT - DUB
ONTDUB
Ontario
Fri 7/24
11:48 am-8:45 am
1 stop12h 57m
Dublin
Sun 8/2
11:00 am-11:48 pm
2 stops20h 48m
$1,164
Showing 1-10 of 24 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 May.
| 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 May 31, 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
Crew
7.9
Overall
7.1
Comfort
7.2
Food
6.4
Entertainment
6.9
Reviews
1 / 20
2.0
MediocreAnonymous,Apr 2026
DFW - BDL
Boarding
7.5
Crew
7.9
Overall
7.1
Comfort
7.2
Food
6.4
Entertainment
6.9
Reviews
1 / 20
2.0
MediocreAnonymous,Apr 2026
DFW - BDL
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.
Alternative routes
Complete your trip
Dublin flight routes
Flights by cabin class
Other flight options
Other flights from Ontario
Popular flights
Alternative routes for Ontario to Dublin
See prices for flight routes from nearby airports that may be better suited for you.
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 May 31, 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 May 31, 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 May 31, 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 2,558,603 searches. Data last updated May 31, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$683 | Average$879 | FlexibilityNo cancel fee | On-time71% |