€313 Find Cheap Flights from Ontario to Ireland – Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Ontario to Ireland departing on 23/9. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Flight Deals

Best Ireland Flight Deals from Ontario

Cheapest return prices found by our users on KAYAK in the last 72 hours
Dublin
Dublin1 stop€724
Cork
Cork2 stops€1,135
Shannon
Shannon1 stop€671
Dublin
Dublin1 stop€724
Cork
Cork2 stops€1,135
Shannon
Shannon1 stop€671

Cheap Flights from Ontario to Ireland

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Ontario to Ireland that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Ontario to Ireland

Mon, 3 Aug - Wed, 19 Aug
United Airlines Logo
06:10 - 07:30
ONT
-
SNN
17h 20m
1 stop
United Airlines Logo
09:30 - 22:35
SNN
-
ONT
21h 05m
1 stop
€671United Airlines
Fri, 11 Sep - Tue, 15 Sep
United Airlines Logo
19:13 - 10:15
ONT
-
SNN
55h 02m
3 stops
United Airlines Logo
09:30 - 20:01
SNN
-
ONT
18h 31m
2 stops
€674United Airlines
Fri, 11 Sep - Tue, 15 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
€699United Airlines
Fri, 11 Sep - Tue, 15 Sep
United Airlines Logo
06:00 - 10:15
ONT
-
SNN
20h 15m
2 stops
United Airlines Logo
09:30 - 19:57
SNN
-
ONT
18h 27m
1 stop
€703United Airlines
Fri, 11 Sep - Tue, 15 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
€722United Airlines
Wed, 5 Aug - Sun, 30 Aug
Multiple Airlines Logo
08:58 - 11:45
ONT
-
DUB
18h 47m
1 stop
Multiple Airlines Logo
10:40 - 19:48
DUB
-
ONT
41h 08m
2 stops
€724Multiple Airlines
Mon, 3 Aug - Wed, 19 Aug
Air Canada Logo
05:00 - 07:45
ONT
-
DUB
18h 45m
2 stops
Air Canada Logo
09:50 - 20:53
DUB
-
ONT
19h 03m
2 stops
€747Air Canada
Sun, 23 Aug - Tue, 8 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
€748JetBlue
Mon, 3 Aug - Wed, 19 Aug
American Airlines Logo
12:35 - 09:45
ONT
-
DUB
13h 10m
1 stop
American Airlines Logo
12:40 - 18:47
DUB
-
ONT
14h 07m
1 stop
€753American Airlines
Mon, 3 Aug - Wed, 19 Aug
American Airlines Logo
14:15 - 09:45
ONT
-
DUB
35h 30m
1 stop
American Airlines Logo
12:40 - 22:59
DUB
-
ONT
18h 19m
1 stop
€754American Airlines
Booking Insights

KAYAK's insights & trends for Ontario to Ireland flights

Get data-powered insights and trends into flights from Ontario to Ireland to help you find the cheapest flights, the best time to fly, and much more.

Which airlines provide the cheapest flights from Ontario to Ireland?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 5 days.

In the past 3 days, the cheapest return tickets from Ontario to Ireland were found on United Airlines (€674) and JetBlue (€776).

Find deals

Good to know

Cheapest flight€313
Flight from Ontario to Dublin

FAQs - booking Ireland flights

  • How does KAYAK find such low prices on flights from Ontario to Ireland?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Ontario to Ireland.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Ontario to Ireland?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Ontario to Ireland is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Ontario to Ireland?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly from Ontario to Ireland with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Ontario to Ireland?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Ontario to Ireland up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Everything you need to know for your flight from Ontario to Ireland

Information on your arrival and departure airports

Ontario (ONT)