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Cheap flights from Ontario to Dublin from €334

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 15/7. 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.
Air Canada Logo
19:13 - 07:45
ONT
-
DUB
28h 32m
2 stops
Air Canada Logo
09:50 - 12:12
DUB
-
ONT
34h 22m
2 stops
€555Air Canada
Mon, 17 Aug - Wed, 2 Sep
United Airlines Logo
07:00 - 09:45
ONT
-
DUB
18h 45m
1 stop
United Airlines Logo
09:50 - 18:19
DUB
-
ONT
40h 29m
2 stops
€557United Airlines
Tue, 18 Aug - Tue, 1 Sep
United Airlines Logo
07:00 - 09:45
ONT
-
DUB
18h 45m
1 stop
United Airlines Logo
09:50 - 17:47
DUB
-
ONT
39h 57m
3 stops
€561United Airlines
Tue, 14 Apr - Tue, 21 Apr
United Airlines Logo
19:13 - 07:45
ONT
-
DUB
28h 32m
3 stops
United Airlines Logo
09:20 - 12:12
DUB
-
ONT
34h 52m
2 stops
€565United Airlines
Sat, 15 Aug - Wed, 26 Aug
United Airlines Logo
05:10 - 07:30
ONT
-
DUB
18h 20m
2 stops
United Airlines Logo
09:50 - 17:47
DUB
-
ONT
39h 57m
2 stops
€566United Airlines
Mon, 30 Mar - Tue, 7 Apr
United Airlines Logo
23:59 - 09:45
ONT
-
DUB
25h 46m
1 stop
United Airlines Logo
09:50 - 17:47
DUB
-
ONT
39h 57m
2 stops
€567United Airlines
Sat, 28 Mar - Tue, 7 Apr
Multiple Airlines Logo
05:10 - 08:15
ONT
-
DUB
19h 05m
3 stops
Multiple Airlines Logo
09:50 - 12:20
DUB
-
ONT
34h 30m
2 stops
€568Multiple Airlines
Tue, 14 Apr - Tue, 21 Apr
Lufthansa Logo
23:59 - 08:10
ONT
-
DUB
25h 11m
1 stop
Lufthansa Logo
11:35 - 20:36
DUB
-
ONT
17h 01m
2 stops
€570Lufthansa
Mon, 23 Mar - Wed, 8 Apr
Lufthansa Logo
23:59 - 08:10
ONT
-
DUB
25h 11m
1 stop
Lufthansa Logo
11:35 - 22:31
DUB
-
ONT
18h 56m
1 stop
€576Lufthansa
Mon, 23 Mar - Wed, 8 Apr
United Airlines Logo
18:45 - 07:20
ONT
-
DUB
52h 35m
2 stops
United Airlines Logo
09:50 - 22:35
DUB
-
ONT
44h 45m
2 stops
€577United Airlines
Fri, 24 Apr - Tue, 12 May

Lufthansa flights from Ontario to Dublin

Our best Lufthansa deals on Ontario to Dublin flight tickets
Lufthansa
23 Mar
ONT23:59Ontario
25h 11m
1 stop
DUB08:10Dublin
8 Apr
DUB11:35Dublin
17h 01m
2 stops
ONT20:36Ontario
€570
Lufthansa
23 Mar
ONT23:59Ontario
25h 11m
1 stop
DUB08:10Dublin
8 Apr
DUB11:35Dublin
18h 56m
1 stop
ONT22:31Ontario
€576
Lufthansa
23 Mar
ONT23:59Ontario
25h 11m
1 stop
DUB08:10Dublin
8 Apr
DUB12:30Dublin
18h 01m
2 stops
ONT22:31Ontario
€598

Air Canada flights from Ontario to Dublin

Our best Air Canada deals on Ontario to Dublin flight tickets
Air Canada
17 Aug
ONT19:13Ontario
28h 32m
2 stops
DUB07:45Dublin
2 Sept
DUB09:50Dublin
34h 22m
2 stops
ONT12:12Ontario
€555
Air Canada
4 May
ONT06:00Ontario
41h 45m
2 stops
DUB07:45Dublin
13 May
DUB09:50Dublin
31h 51m
2 stops
ONT09:41Ontario
€580
Air Canada
24 Mar
ONT05:15Ontario
17h 55m
2 stops
DUB06:10Dublin
8 May
DUB09:50Dublin
18h 46m
2 stops
ONT20:36Ontario
€582

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 4 March 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

Price

OntarioDublin

ONT - DUB

ONTDUB

Ontario

Mon 17/8

19:13-07:45

2 stops28h 32m

Dublin

Wed 2/9

09:50-12:12

2 stops34h 22m

€555

OntarioDublin

ONT - DUB

ONTDUB

Ontario

Tue 18/8

07:00-09:45

1 stop18h 45m

Dublin

Tue 1/9

09:50-18:19

2 stops40h 29m

€557

OntarioDublin

ONT - DUB

ONTDUB

Ontario

Tue 14/4

07:00-09:45

1 stop18h 45m

Dublin

Tue 21/4

09:50-17:47

3 stops39h 57m

€561

OntarioDublin

ONT - DUB

ONTDUB

Ontario

Sat 15/8

19:13-07:45

3 stops28h 32m

Dublin

Wed 26/8

09:20-12:12

2 stops34h 52m

€565

OntarioDublin

ONT - DUB

ONTDUB

Ontario

Mon 30/3

05:10-07:30

2 stops18h 20m

Dublin

Tue 7/4

09:50-17:47

2 stops39h 57m

€566

OntarioDublin

ONT - DUB

ONTDUB

Ontario

Sat 28/3

23:59-09:45

1 stop25h 46m

Dublin

Tue 7/4

09:50-17:47

2 stops39h 57m

€567

OntarioDublin

ONT - DUB

ONTDUB

Ontario

Tue 14/4

05:10-08:15

3 stops19h 05m

Dublin

Tue 21/4

09:50-12:20

2 stops34h 30m

€568

OntarioDublin

ONT - DUB

ONTDUB

Ontario

Mon 23/3

23:59-08:10

1 stop25h 11m

Dublin

Wed 8/4

11:35-20:36

2 stops17h 01m

€570

OntarioDublin

ONT - DUB

ONTDUB

Ontario

Mon 23/3

23:59-08:10

1 stop25h 11m

Dublin

Wed 8/4

11:35-22:31

1 stop18h 56m

€576

OntarioDublin

ONT - DUB

ONTDUB

Ontario

Fri 24/4

18:45-07:20

2 stops52h 35m

Dublin

Tue 12/5

09:50-22:35

2 stops44h 45m

€577

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 €424. If your travel schedule is flexible, try to avoid departing on a Tuesday because tickets tend to average around €584. These prices are subject to change though, so be sure to set up a Price Alert for flights to Dublin.

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

15h 45m

Direct flights

None
The fastest flight from Ontario to Dublin takes 15h 45m
There are no direct flights from Ontario to Dublin. There are no popular flight routes from Ontario to Dublin.
Search flight deals

  • How far is Ontario to Dublin by plane?

    The distance between Ontario and Dublin is about 8266.8 km. Typically, this will take 15h 45m 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
Cavan
Naas
Tullamore
Dundalk
Kildare
Swords
Bray
Gorey
Mullingar
Maynooth
Malahide
Enniscorthy
Carlingford
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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