Cheap flights from Montreal to Dublin from C$ 342

If you’re not able to fly to Dublin in September, then May is your next best option. Flight prices from Montreal to Dublin during May average around C$ 776.

On average, the least expensive day to fly to Dublin from Montreal is on a Saturday. momondo users have found tickets for Saturday departures for as low as C$ 899. 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$ 1,031. 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 - Dublin flight prices

You are more likely to see cheaper flights to Dublin from Montreal when booking weeks ahead of your departure date. In general, you can expect to find flights to Dublin for around C$ 918 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Dublin from Montreal for as low as C$ 769 on momondo.

There are 3 cabin classes available to choose from on Montreal 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 14% on your flight if you consider stops on a Montreal to Dublin flight.

WestJet is the most popular carrier operating from Montreal to Dublin

Air Canada, WestJet and Air Transat are the top three most popular airlines that fly to Dublin from Montreal 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 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 15% 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 129 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.

Monday 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 15% of their flights experiencing any sort of delay.

Toronto (YYZ) was the most common stop: 94% of momondo users choosing one-stop flights on this route connected there.

Flights via Toronto (YYZ) offer the lowest average round-trip price of C$ 708.

Flights connecting via London (LHR) have the shortest average one-way travel time: 10h 10m.

London (LHR) has the shortest average layover time for this route: 1h 45m.

The number of flights available between Montreal and Dublin is 1 per day as of September 2026. The most frequent departure time is 8:00p.m., with 100% of daily flights leaving in the evening.

As of September 2026, there are 11 flights per week flying from Montreal to Dublin. The most common day of the week flights depart is Mon, with 27% of flights taking off on this day.