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Cheap flights from Ontario to Ireland from €307

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 Ireland departing on 13/9. 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
1 adult, Economy, 0 bags
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Find the cheapest flights from Ontario to Ireland

Cheap return flights

Enter your travel dates to find the best prices.
Delta Logo
07:05 - 11:10
ONT
-
SNN
20h 05m
2 stops
Delta Logo
13:05 - 11:14
SNN
-
ONT
30h 09m
2 stops
€662Delta
Sun, 6 Sep - Wed, 9 Sep
United Airlines Logo
07:00 - 07:30
ONT
-
SNN
16h 30m
1 stop
United Airlines Logo
09:30 - 19:57
SNN
-
ONT
18h 27m
1 stop
€694United Airlines
Wed, 2 Sep - Wed, 9 Sep
United Airlines Logo
07:00 - 07:30
ONT
-
SNN
16h 30m
1 stop
United Airlines Logo
09:30 - 20:01
SNN
-
ONT
18h 31m
2 stops
€697United Airlines
Wed, 2 Sep - Wed, 9 Sep
Multiple Airlines Logo
08:58 - 11:45
ONT
-
DUB
18h 47m
1 stop
Multiple Airlines Logo
12:15 - 08:03
DUB
-
ONT
27h 48m
2 stops
€708Multiple Airlines
Mon, 27 Jul - Tue, 11 Aug
JetBlue Logo
23:50 - 09:00
ONT
-
DUB
25h 10m
1 stop
JetBlue Logo
11:30 - 20:13
DUB
-
ONT
16h 43m
1 stop
€739JetBlue
Fri, 4 Sep - Fri, 11 Sep
Air Canada Logo
05:00 - 07:10
ONT
-
DUB
43h 10m
2 stops
Air Canada Logo
09:00 - 20:20
DUB
-
ONT
43h 20m
2 stops
€741Air Canada
Sat, 31 Oct - Wed, 11 Nov
KLM Logo
07:00 - 11:10
ONT
-
SNN
20h 10m
2 stops
KLM Logo
13:05 - 23:37
SNN
-
ONT
18h 32m
2 stops
€744KLM
Tue, 8 Sep - Wed, 16 Sep
JetBlue Logo
23:50 - 09:00
ONT
-
DUB
25h 10m
1 stop
JetBlue Logo
11:30 - 22:35
DUB
-
ONT
19h 05m
1 stop
€746JetBlue
Fri, 21 Aug - Tue, 25 Aug
Multiple Airlines Logo
11:48 - 14:40
ONT
-
ORK
18h 52m
2 stops
Multiple Airlines Logo
10:50 - 22:52
ORK
-
ONT
20h 02m
2 stops
€1,081Multiple Airlines
Tue, 7 Jul - Mon, 13 Jul
Air Canada Logo
05:00 - 10:45
ONT
-
ORK
21h 45m
3 stops
Air Canada Logo
07:10 - 17:54
ORK
-
ONT
18h 44m
3 stops
€2,449Air Canada
Tue, 7 Jul - Mon, 13 Jul

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Iberia flights from Ontario to Ireland

Our best Iberia deals on Ontario to Ireland flight tickets
Iberia
3 Aug
ONT10:25Ontario
15h 20m
1 stop
DUB09:45Dublin
19 Aug
DUB12:40Dublin
18h 19m
1 stop
ONT22:59Ontario
€768
Iberia
8 Sept
ONT12:33Ontario
13h 12m
1 stop
DUB09:45Dublin
16 Sept
DUB12:40Dublin
15h 29m
1 stop
ONT20:09Ontario
€796
Iberia
4 Aug
ONT12:35Ontario
13h 10m
1 stop
DUB09:45Dublin
22 Aug
DUB12:40Dublin
14h 18m
1 stop
ONT18:58Ontario
€805

Air Canada flights from Ontario to Ireland

Our best Air Canada deals on Ontario to Ireland flight tickets
Air Canada
31 Oct
ONT05:00Ontario
43h 10m
2 stops
DUB07:10Dublin
11 Nov
DUB09:00Dublin
43h 20m
2 stops
ONT20:20Ontario
€741
Air Canada
9 Aug
ONT05:00Ontario
18h 45m
3 stops
DUB07:45Dublin
20 Aug
DUB09:50Dublin
19h 03m
3 stops
ONT20:53Ontario
€771
Air Canada
30 Oct
ONT05:00Ontario
18h 10m
2 stops
DUB06:10Dublin
6 Nov
DUB09:00Dublin
43h 20m
2 stops
ONT20:20Ontario
€784

momondo Fare Finder

 
Customise your flight search to find flights from Ontario to Ireland 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 9 June 2026.
Use the filters below to find and compare flights from Ontario to Ireland that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

OntarioShannon

ONT - SNN

ONTSNN

Ontario

Sun 6/9

07:05-11:10

2 stops20h 05m

Shannon

Wed 9/9

13:05-11:14

2 stops30h 09m

€662
Fastest return journey

OntarioShannon

ONT - SNN

ONTSNN

Ontario

Wed 2/9

07:00-07:30

1 stop16h 30m

Shannon

Wed 9/9

09:30-19:57

1 stop18h 27m

€694

OntarioShannon

ONT - SNN

ONTSNN

Ontario

Wed 2/9

07:00-07:30

1 stop16h 30m

Shannon

Wed 9/9

09:30-20:01

2 stops18h 31m

€697

OntarioDublin

ONT - DUB

ONTDUB

Ontario

Mon 27/7

08:58-11:45

1 stop18h 47m

Dublin

Tue 11/8

12:15-08:03

2 stops27h 48m

€708

OntarioDublin

ONT - DUB

ONTDUB

Ontario

Fri 4/9

23:50-09:00

1 stop25h 10m

Dublin

Fri 11/9

11:30-20:13

1 stop16h 43m

€739

OntarioDublin

ONT - DUB

ONTDUB

Ontario

Sat 31/10

05:00-07:10

2 stops43h 10m

Dublin

Wed 11/11

09:00-20:20

2 stops43h 20m

€741

OntarioShannon

ONT - SNN

ONTSNN

Ontario

Tue 8/9

07:00-11:10

2 stops20h 10m

Shannon

Wed 16/9

13:05-23:37

2 stops18h 32m

€744

OntarioDublin

ONT - DUB

ONTDUB

Ontario

Fri 21/8

23:50-09:00

1 stop25h 10m

Dublin

Tue 25/8

11:30-22:35

1 stop19h 05m

€746

OntarioCork

ONT - ORK

ONTORK

Ontario

Tue 7/7

11:48-14:40

2 stops18h 52m

Cork

Mon 13/7

10:50-22:52

2 stops20h 02m

€1,081

OntarioCork

ONT - ORK

ONTORK

Ontario

Tue 7/7

05:00-10:45

3 stops21h 45m

Cork

Mon 13/7

07:10-17:54

3 stops18h 44m

€2,449

Flights are sorted by cheapest return flights first.

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

How to get the cheapest flight ticket from Ontario to Ireland

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 airline that flies from Ontario to Ireland?

United Airlines, KLM, and Icelandair are the most popular carriers operating from Ontario to Ireland

Cheap Ontario to Ireland flight deals and tips

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

Fastest flight time

12h 45m

Direct flights

None
The fastest flight from Ontario to Ireland takes 12h 45m
There are no direct flights from Ontario to Ireland. There are no popular flight routes from Ontario to Ireland.
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Frequently asked questions about flying from Ontario to Ireland

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

    Prices for flights from Ontario Airport to Ireland refresh daily.

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

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and stopovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Ontario Airport to Ireland.

  • What documentation or ID do you need to fly to Ireland?

    The required travel and health documents for your Ireland 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 Ireland. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Why use momondo?

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

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

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

Yes. momondo allows you to filter the results for Ontario to Ireland flights to just show those with flexible booking policies.

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

momondo provides multiple filters to help you find the best flight to Ireland from Ontario. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Yes. momondo can track prices for Ontario to Ireland flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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Find better results for your trip to Ireland

Popular Cities in Ireland

Popular flights according to clicks in the last 7 days on momondo
Flights to Dublinfrom €38
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