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Cheap flights from Ontario to Dublin from €287

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ontario to Dublin departing on 1/3. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags
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Find the cheapest flights from Ontario to Dublin

Cheap return flights

Enter your travel dates to find the best prices.
United Airlines Logo
07:00 - 09:45
ONT
-
DUB
18h 45m1 stop
United Airlines Logo
09:20 - 12:22
DUB
-
ONT
35h 02m2 stops
€534United Airlines
Wed, 15 Apr - Fri, 1 May
Air Canada Logo
05:10 - 08:15
ONT
-
DUB
19h 05m2 stops
Air Canada Logo
09:50 - 21:01
DUB
-
ONT
43h 11m2 stops
€540Air Canada
Wed, 15 Apr - Wed, 29 Apr
British Airways Logo
16:45 - 19:40
ONT
-
DUB
18h 55m2 stops
British Airways Logo
10:55 - 22:48
DUB
-
ONT
19h 53m2 stops
€541British Airways
Tue, 13 Jan - Tue, 27 Jan
Air Canada Logo
13:34 - 08:15
ONT
-
DUB
34h 41m2 stops
Air Canada Logo
09:50 - 21:01
DUB
-
ONT
43h 11m2 stops
€545Air Canada
Mon, 20 Apr - Tue, 5 May
United Airlines Logo
07:00 - 09:45
ONT
-
DUB
18h 45m1 stop
United Airlines Logo
09:50 - 20:36
DUB
-
ONT
18h 46m2 stops
€554United Airlines
Wed, 15 Apr - Wed, 29 Apr
Delta Logo
07:00 - 08:45
ONT
-
DUB
17h 45m1 stop
Delta Logo
05:55 - 17:15
DUB
-
ONT
19h 20m2 stops
€556Delta
Sun, 19 Apr - Fri, 1 May
United Airlines Logo
07:00 - 09:45
ONT
-
DUB
18h 45m1 stop
United Airlines Logo
11:35 - 22:26
DUB
-
ONT
18h 51m1 stop
€558United Airlines
Wed, 15 Apr - Thu, 30 Apr
Delta Logo
06:00 - 07:55
ONT
-
DUB
17h 55m2 stops
Delta Logo
05:55 - 17:15
DUB
-
ONT
19h 20m2 stops
€560Delta
Wed, 15 Apr - Thu, 30 Apr
Air Canada Logo
05:10 - 08:15
ONT
-
DUB
19h 05m2 stops
Air Canada Logo
09:50 - 21:01
DUB
-
ONT
43h 11m2 stops
€568Air Canada
Wed, 15 Apr - Sat, 2 May
British Airways Logo
16:45 - 19:40
ONT
-
DUB
18h 55m2 stops
British Airways Logo
20:40 - 17:22
DUB
-
ONT
28h 42m2 stops
€569British Airways
Sun, 11 Jan - Sat, 17 Jan

British Airways flights from Ontario to Dublin

Our best British Airways deals on Ontario to Dublin flight tickets
British Airways
13 Jan
ONT16:45Ontario
18h 55m
2 stops
DUB19:40Dublin
27 Jan
DUB10:55Dublin
19h 53m
2 stops
ONT22:48Ontario
€541
Find similar
British Airways
11 Jan
ONT16:45Ontario
18h 55m
2 stops
DUB19:40Dublin
17 Jan
DUB20:40Dublin
28h 42m
2 stops
ONT17:22Ontario
€569
Find similar
British Airways
1 Mar
ONT17:06Ontario
15h 44m
2 stops
DUB16:50Dublin
10 Mar
DUB10:55Dublin
18h 12m
2 stops
ONT22:07Ontario
€591
Find similar

Iberia flights from Ontario to Dublin

Our best Iberia deals on Ontario to Dublin flight tickets
Iberia
3 Apr
ONT10:56Ontario
14h 49m
1 stop
DUB09:45Dublin
11 Apr
DUB13:45Dublin
17h 55m
1 stop
ONT23:40Ontario
€658
Find similar
Iberia
12 May
ONT12:55Ontario
12h 50m
1 stop
DUB09:45Dublin
18 May
DUB11:45Dublin
18h 11m
1 stop
ONT21:56Ontario
€677
Find similar
Iberia
30 Dec
ONT10:50Ontario
17h 30m
2 stops
DUB12:20Dublin
1 Jan
DUB13:00Dublin
17h 14m
1 stop
ONT22:14Ontario
€2,289
Find similar

momondo Fare Finder

 
Customise 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, momondo users made 13,528 searches. Data last updated 28 December 2025.
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

Price

OntarioDublin

ONT - DUB

ONTDUB

Ontario

Wed 15/4

07:00-09:45

1 stop18h 45m

Dublin

Fri 1/5

09:20-12:22

2 stops35h 02m

€534

OntarioDublin

ONT - DUB

ONTDUB

Ontario

Wed 15/4

05:10-08:15

2 stops19h 05m

Dublin

Wed 29/4

09:50-21:01

2 stops43h 11m

€540

OntarioDublin

ONT - DUB

ONTDUB

Ontario

Tue 13/1

16:45-19:40

2 stops18h 55m

Dublin

Tue 27/1

10:55-22:48

2 stops19h 53m

€541

OntarioDublin

ONT - DUB

ONTDUB

Ontario

Mon 20/4

13:34-08:15

2 stops34h 41m

Dublin

Tue 5/5

09:50-21:01

2 stops43h 11m

€545

OntarioDublin

ONT - DUB

ONTDUB

Ontario

Wed 15/4

07:00-09:45

1 stop18h 45m

Dublin

Wed 29/4

09:50-20:36

2 stops18h 46m

€554

OntarioDublin

ONT - DUB

ONTDUB

Ontario

Sun 19/4

07:00-08:45

1 stop17h 45m

Dublin

Fri 1/5

05:55-17:15

2 stops19h 20m

€556

OntarioDublin

ONT - DUB

ONTDUB

Ontario

Wed 15/4

07:00-09:45

1 stop18h 45m

Dublin

Thu 30/4

11:35-22:26

1 stop18h 51m

€558

OntarioDublin

ONT - DUB

ONTDUB

Ontario

Wed 15/4

06:00-07:55

2 stops17h 55m

Dublin

Thu 30/4

05:55-17:15

2 stops19h 20m

€560

OntarioDublin

ONT - DUB

ONTDUB

Ontario

Wed 15/4

05:10-08:15

2 stops19h 05m

Dublin

Sat 2/5

09:50-21:01

2 stops43h 11m

€568

OntarioDublin

ONT - DUB

ONTDUB

Ontario

Sun 11/1

16:45-19:40

2 stops18h 55m

Dublin

Sat 17/1

20:40-17:22

2 stops28h 42m

€569

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Dublin from

How to get the cheapest flight ticket from Ontario to Dublin

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest day to depart on your flight to Dublin?

Our data shows that Friday is the least expensive day to fly to Dublin. Tickets to fly out on this day can be as low as €419. If your travel schedule is flexible, try to avoid departing on a Tuesday because tickets tend to average around €577. These prices are subject to change though, so be sure to set up a Price Alert for flights to Dublin.

What is the cheapest time of day to depart on your flight to Dublin?

Our data shows that the cheapest Ontario to Dublin flights are usually those with departure times in the morning. Our users have found flights to Dublin in the morning for as low as €461. If you have a flexible travel schedule, then try to avoid flying in the evening when prices are €513 on average. Flights to Dublin from Ontario in the evening are generally more expensive because this time of day is more convenient for travellers’ schedules.

When to book flights from Ontario to Dublin

Are you open to changing your travel dates? Check out the ideal times to fly from Ontario to Dublin according to our flight data. Find out which month and days have the cheapest flights.
Estimated return price

Cheap Ontario to Dublin (ONT to DUB) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Ontario to Dublin

Fastest flight time

12h 50m

Direct flights

None
The fastest flight from Ontario to Dublin takes 12h 50m
There are no direct flights from Ontario to Dublin. There are no popular flight routes from Ontario to Dublin.
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  • How far is Ontario to Dublin by plane?

    The distance between Ontario and Dublin is about 8266.8 km. Typically, this will take 12h 50m by plane in normal conditions.

  • When did momondo last update prices for flights from Ontario Airport to Dublin Airport?

    Prices for flights from Ontario Airport to Dublin Airport refresh daily.

  • How old do you have to be to fly from Ontario Airport to Dublin Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and stopovers. It is recommended that you verify with the airline you are booking with for travel from Ontario Airport to Dublin Airport.

  • What documentation or ID do you need to fly to Dublin Airport?

    The required travel and health documents for your Dublin Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's licence and a passport valid for six months after your intended arrival at Dublin Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Travelling to a place near Dublin?

Book flights to Dublin if you plan to visit one of these locations
Kilkenny
Athlone
Wicklow
Swords
Cavan
Dundalk
Tullamore
Naas
Kildare
Enniscorthy
Bray
Mullingar
Carlingford
Gorey
Malahide
Maynooth
Leixlip
Arklow
Castleknock
Drogheda

Why use momondo?

Why should I use momondo to find a flight deal from Ontario to Dublin?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Ontario to Dublin. momondo saves you time and could save you money on your trip.

Can I find flights from Ontario to Dublin with flexible booking policies on momondo?

All flight searches from Ontario to Dublin on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Ontario to Dublin?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Ontario to Dublin.

I’m not ready to book a flight from Ontario to Dublin right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Dublin from Ontario. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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