Cheap flights from Ireland to Ontario from €98

The cheapest month to fly to Region of Ontario from Ireland is in November. Flight prices, which tend to average around €398, are often lower during this time because this is during the off-season. The month of September is another great option to travel to Region of Ontario, with average flight prices from Ireland averaging around €401.

Our data shows that Tuesday is the least expensive day to fly to Region of Ontario. Tickets to fly out on this day can be as low as €538. The most expensive day to fly to Region of Ontario is Monday, with ticket prices averaging around €586.

According to our data, the cheapest time of day to fly to Region of Ontario is at midday. momondo users have found flights departing from Ireland to Region of Ontario at midday for as low as €513. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights to Region of Ontario are more costly in the morning, with an average ticket price of €614. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

Fly from Dublin to Toronto Pearson Intl for the best Ireland - Ontario flight prices

You are more likely to see cheaper flights to Region of Ontario from Ireland when booking weeks ahead of your departure date. In general, you can expect to find flights to Region of Ontario for around €457 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Region of Ontario from Ireland for as low as €403 on momondo.

There are 3 cabin classes available to choose from on Ireland to Ontario flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

WestJet, British Airways, and SWISS are the most popular carriers operating from Ireland to Ontario

Air Canada, Aer Lingus and Air Transat are the top three most popular airlines that fly to Region of Ontario from Ireland according to our data. Air Canada is the first choice among our users, with 40% of people opting to fly with this airline when travelling to Region of Ontario. Keep in mind that there are 6 different airlines that fly to Region of Ontario on a routine basis, so you have a few additional options to choose from.

As of February 2026, there are 4 flights per day flying from Ireland to Region of Ontario. The most common time of day flights depart is 13:00, with 70% of flights taking off in the afternoon.

The number of flights available between Ireland and Region of Ontario is 28 per week as of February 2026. The most frequent departure day is Mon, with 14% of weekly flights leaving on this day.