Cheap flights from Montreal Pierre Elliott Trudeau Intl Airport to Dublin from C$ 354

If you’re not able to fly to Dublin in May, then September is your next best option. Flight prices from Montreal Pierre Elliott Trudeau Intl Airport to Dublin during September average around C$ 803.

On average, the least expensive day to fly to Dublin from Montreal Pierre Elliott Trudeau Intl Airport is on a Saturday. momondo users have found tickets for Saturday departures for as low as C$ 913. However, this price may fluctuate depending on the airline, the season, and holidays. If your travel schedule is flexible, try to avoid departing on a Wednesday because tickets tend to average around C$ 1,048. These prices are subject to change though, so be sure to set up a Price Alert for flights to Dublin.

Fly from Montreal Pierre Elliott Trudeau Intl to Dublin for the best Montreal Pierre Elliott Trudeau Intl - Dublin flight prices

You are more likely to see cheaper flights to Dublin from Montreal Pierre Elliott Trudeau Intl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Dublin for around C$ 937 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Dublin from Montreal Pierre Elliott Trudeau Intl Airport for as low as C$ 782 on momondo.

There are 3 cabin classes available to choose from on Montreal Pierre Elliott Trudeau Intl Airport to Dublin flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

You could potentially save up to 16% on your flight if you consider stops on a Montreal Pierre Elliott Trudeau Intl Airport to Dublin flight.

WestJet is the most popular carrier operating from Montreal Pierre Elliott Trudeau Intl to Dublin

Air Canada, WestJet and Air Transat are the top three most popular airlines that fly to Dublin from Montreal Pierre Elliott Trudeau Intl Airport according to our data. Air Canada is the first choice among our users, with 41% of people opting to fly with this airline when travelling to Dublin. Keep in mind that there are 8 different airlines that fly to Dublin on a routine basis, so you have a few additional options to choose from.

Historically, on average around 14% of flights between Montreal and Dublin have experienced a delay on any given week. The average delay length over the past 12 months has been 178 minutes.

Generally, flights departing in the evening tend to experience fewer delays. Flights departing in the evening have, in the past, seen delays more frequently in comparison.

Sunday is statistically the day of the week that experiences the fewest delays on this flight route. Wednesday has historically seen more delays on average compared to the rest of the week.

According to our data, Air Canada has had the least delays on this route over the last 12 months, with about 14% of their flights experiencing any sort of delay.

As of July 2026, 1 flights take off from Montreal Pierre Elliott Trudeau Intl Airport and land in Dublin each day. The most common flight departure time for this route is 8:00p.m., with 100% of daily flights taking off in the evening.

The number of flights available between Montreal Pierre Elliott Trudeau Intl Airport and Dublin is 11 per week as of July 2026. The most frequent departure day is Mon, with 27% of weekly flights leaving on this day.