Cheap flights from Dublin to Ontario from £327
This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 31/1. Fares are subject to change and may not be available on all flights or dates of travel.
Cheap flight deals from Dublin to Ontario
Cheapest flights from Dublin to OntarioExplore the most affordable flight options available from Dublin to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 10 October 2026.
Explore the most affordable flight options available from Dublin to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 10 October 2026.
Best flights from Dublin to OntarioDiscover carefully curated flight deals from Dublin to Ontario that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 10 October 2026.
Discover carefully curated flight deals from Dublin to Ontario that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 10 October 2026.
Last-minute flights from Dublin to OntarioDiscover last-minute flight deals from Dublin to Ontario. Data last updated 10 October 2026 and is based on user searches.
Discover last-minute flight deals from Dublin to Ontario. Data last updated 10 October 2026 and is based on user searches.
One-way flights from Dublin to OntarioSearch for one-way flight options from Dublin to Ontario. Find affordable one-way fares based on user searches. Data last updated 10 October 2026.
Search for one-way flight options from Dublin to Ontario. Find affordable one-way fares based on user searches. Data last updated 10 October 2026.
Find flight deals from Dublin to Ontario
Discover tips and strategies to find the most affordable flight options for your journey from Dublin (DUB) to Ontario (ONT). 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 10 October 2026.
Cheapflights Fare Finder
Use the filters below to find and compare flights from Dublin to Ontario that are best for you.
Fly from
Fly to
Route
Depart
Return
DublinOntario
DUB Dublin - ONT Ontario
DUBONT
Dublin
Thu 19/11
09:00-22:48
2 stops21h 48m
Ontario
Thu 26/11
07:00-08:10
1 stop17h 10m
DublinOntario
DUB Dublin - ONT Ontario
DUBONT
Dublin
Mon 4/1
12:30-22:53
1 stop18h 23m
Ontario
Wed 31/12
00:00-09:00
Nonstop0h 00m
DublinOntario
DUB Dublin - ONT Ontario
DUBONT
Dublin
Wed 13/1
10:40-18:50
1 stop16h 10m
Ontario
Sun 17/1
06:00-07:30
2 stops17h 30m
DublinOntario
DUB Dublin - ONT Ontario
DUBONT
Dublin
Wed 6/1
07:35-23:13
2 stops23h 38m
Ontario
Wed 31/12
00:00-09:00
Nonstop0h 00m
DublinOntario
DUB Dublin - ONT Ontario
DUBONT
Dublin
Sun 22/11
11:00-21:52
2 stops18h 52m
Ontario
Wed 31/12
00:00-09:00
Nonstop0h 00m
DublinOntario
DUB Dublin - ONT Ontario
DUBONT
Dublin
Mon 2/11
09:55-19:30
1 stop17h 35m
Ontario
Sun 15/11
07:05-07:45
1 stop16h 40m
DublinOntario
DUB Dublin - ONT Ontario
DUBONT
Dublin
Wed 24/3
06:00-16:12
2 stops17h 12m
Ontario
Wed 31/12
00:00-09:00
Nonstop0h 00m
DublinOntario
DUB Dublin - ONT Ontario
DUBONT
Dublin
Mon 19/10
05:55-23:42
2 stops25h 47m
Ontario
Wed 31/12
00:00-09:00
Nonstop0h 00m
DublinOntario
DUB Dublin - ONT Ontario
DUBONT
Dublin
Mon 14/12
11:30-21:40
2 stops18h 10m
Ontario
Wed 31/12
00:00-09:00
Nonstop0h 00m
DublinOntario
DUB Dublin - ONT Ontario
DUBONT
Dublin
Mon 19/10
11:30-22:14
1 stop18h 44m
Ontario
Wed 31/12
00:00-09:00
Nonstop0h 00m
Best time to book a flight from Dublin to Ontario
Have a flexible travel schedule? Discover the best time to fly to Ontario from Dublin with our price prediction graph.
Related info for your journey
Find useful and relevant information for your journey from Dublin to Ontario. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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 for Dublin to Ontario
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Ontario by adding a car hire and/or hotel booking to your travel itinerary.
Direct flights to California
Book a non-stop flight to one of these other cities located in California.
Search flights from Dublin to Ontario by cabin class
Find flights from Dublin to Ontario, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Other flights to Ontario
Explore flights to Ontario departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 10 October 2026.
Dublin and Ontario flights
Browse other Dublin and Ontario flight options. Last updated on 10 October 2026.
Other flights from Dublin
Browse through other flights departing from Dublin. Flights are based on user searches made on Cheapflights and were last updated on 10 October 2026.
Popular flight searches
Check out other popular destinations found by fellow travellers in 2026
Fly with Cheapflights
Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.
How does Cheapflights help users find flights from Dublin to Ontario?
Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Dublin to Ontario. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.
Why should you use Cheapflights to find cheap flight tickets from Dublin to Ontario?
By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Ontario from Dublin.
Can Cheapflights find flights from Dublin to Ontario with no change fees?
Cheapflights does show flights with no change fees to all users. To see these options for flights from Dublin to Ontario, users can toggle the no change fees filter when performing a flight search.
Can Cheapflights notify me if prices for flights from Dublin to Ontario become cheaper?
Of course! You can now track prices for flights from Dublin to Ontario and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.