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Cheap flights from Montreal to Dublin from C$ 323

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 27/5. Fares are subject to change and may not be available on all flights or dates of travel.
YMQ — DUB
26 Feb — 5 Mar1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Montreal to Dublin are usually found in September or May, booked 85 days in advance, depart on a Saturday or Monday and return on a Thursday

Cheap flight deals from Montreal to Dublin

Enter your travel dates to find the best prices.

Cheapest flights from Montreal to Dublin
Explore the most affordable flight options available from Montreal to Dublin. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 27 January 2026.

Sun 5/78:50 p.m.
YUL
-
DUB
Nonstop5h 55m
Lufthansa
Tue 14/79:50 a.m.
DUB
-
YUL
Nonstop6h 25m
Lufthansa
Deal found 27/1C$ 389
Thu 14/56:45 a.m.
YUL
-
DUB
2 stops44h 35m
WestJet
Sun 17/510:40 a.m.
DUB
-
YUL
1 stop19h 00m
WestJet
Deal found 25/1C$ 578
Fri 20/36:45 a.m.
YUL
-
DUB
1 stop22h 45m
WestJet
Thu 26/310:30 a.m.
DUB
-
YUL
1 stop18h 08m
WestJet
Deal found 26/1C$ 581
Sun 24/56:45 a.m.
YUL
-
DUB
2 stops20h 35m
WestJet
Sat 30/510:40 a.m.
DUB
-
YUL
1 stop19h 00m
WestJet
Deal found 26/1C$ 587
Mon 13/46:45 a.m.
YUL
-
DUB
1 stop22h 15m
WestJet
Wed 29/410:40 a.m.
DUB
-
YUL
1 stop12h 45m
WestJet
Deal found 25/1C$ 590
Fri 22/56:45 a.m.
YUL
-
DUB
2 stops20h 35m
WestJet
Sat 30/510:40 a.m.
DUB
-
YUL
1 stop12h 45m
WestJet
Deal found 25/1C$ 597
Tue 28/46:45 a.m.
YUL
-
DUB
2 stops20h 35m
WestJet
Mon 11/59:40 a.m.
DUB
-
YUL
2 stops20h 00m
WestJet
Deal found 26/1C$ 601
Fri 15/56:45 a.m.
YUL
-
DUB
2 stops20h 35m
WestJet
Mon 25/510:40 a.m.
DUB
-
YUL
1 stop12h 45m
WestJet
Deal found 25/1C$ 602
Mon 11/57:25 p.m.
YUL
-
DUB
2 stops31h 55m
WestJet
Mon 18/59:40 a.m.
DUB
-
YUL
2 stops20h 00m
WestJet
Deal found 26/1C$ 604

Find flight deals from Montreal to Dublin

Discover tips and strategies to find the most affordable flight options for your journey from Montreal (YMQ) to Dublin (DUB). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 27 January 2026.

Round-trip from

C$ 578

One-way from

C$ 323

Popular in

December

Cheapest in

September

Average price

C$ 923

Good round-trip deal

C$ 983 or less
WestJet
  • WestJet
  • 14/5-17/5
  • 3 total stops
  • 63h 35m total
  • Montreal to Dublin
Search Deals
WestJet
  • WestJet
  • 27/5
  • 2 total stops
  • 20h 35m total
  • Montreal to Dublin
Search Deals
Highest demand for flights based on searches. 1% potential increase in price (C$ 16 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (C$ 14 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals
Price to beat on a round-trip flight from Montreal (YMQ) to Dublin.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Montreal to Dublin 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, Cheapflights users made 629,999 searches. Data last updated 27 January 2026.
Use the filters below to find and compare flights from Montreal to Dublin that are best for you.

Fly from

Montreal

Fly to

Dublin

Route

Depart

Return

Price

MontrealDublin

YUL - DUB

YULDUB

Montreal Pierre Elliott Trudeau Intl

Fri 15/5

6:45 a.m.-8:20 a.m.

2 stops20h 35m

Dublin

Tue 26/5

10:00 a.m.-6:25 p.m.

2 stops37h 25m

C$ 634

MontrealDublin

YUL - DUB

YULDUB

Montreal Pierre Elliott Trudeau Intl

Sun 17/5

6:45 a.m.-9:20 a.m.

1 stop21h 35m

Dublin

Thu 21/5

9:40 a.m.-6:25 p.m.

2 stops13h 45m

C$ 637

MontrealDublin

YUL - DUB

YULDUB

Montreal Pierre Elliott Trudeau Intl

Wed 27/5

6:45 a.m.-8:20 a.m.

2 stops20h 35m

Dublin

Wed 10/6

9:40 a.m.-6:25 p.m.

2 stops37h 45m

C$ 639

MontrealDublin

YUL - DUB

YULDUB

Montreal Pierre Elliott Trudeau Intl

Sat 16/5

6:45 a.m.-9:20 a.m.

1 stop21h 35m

Dublin

Thu 21/5

9:40 a.m.-12:40 a.m.

2 stops20h 00m

C$ 639

MontrealDublin

YUL - DUB

YULDUB

Montreal Pierre Elliott Trudeau Intl

Tue 26/5

7:25 p.m.-8:20 a.m.

2 stops31h 55m

Dublin

Wed 10/6

10:40 a.m.-6:25 p.m.

1 stop12h 45m

C$ 639

MontrealDublin

YUL - DUB

YULDUB

Montreal Pierre Elliott Trudeau Intl

Sat 30/5

7:25 p.m.-8:20 a.m.

2 stops31h 55m

Dublin

Mon 15/6

9:40 a.m.-6:25 p.m.

2 stops13h 45m

C$ 639

MontrealDublin

YUL - DUB

YULDUB

Montreal Pierre Elliott Trudeau Intl

Mon 11/5

7:25 p.m.-8:20 a.m.

2 stops31h 55m

Dublin

Sat 16/5

12:15 p.m.-12:40 a.m.

1 stop17h 25m

C$ 639

MontrealDublin

YUL - DUB

YULDUB

Montreal Pierre Elliott Trudeau Intl

Sat 16/5

6:45 a.m.-9:20 a.m.

1 stop21h 35m

Dublin

Tue 26/5

12:15 p.m.-6:25 p.m.

1 stop11h 10m

C$ 639

MontrealDublin

YUL - DUB

YULDUB

Montreal Pierre Elliott Trudeau Intl

Tue 26/5

7:25 p.m.-8:20 a.m.

2 stops31h 55m

Dublin

Thu 11/6

9:40 a.m.-12:40 a.m.

2 stops20h 00m

C$ 639

MontrealDublin

YUL - DUB

YULDUB

Montreal Pierre Elliott Trudeau Intl

Sat 6/6

6:45 a.m.-9:20 a.m.

1 stop21h 35m

Dublin

Sun 7/6

12:15 p.m.-12:40 a.m.

1 stop17h 25m

C$ 639

Flights are sorted by cheapest round-trip flights first.

Deals found on 26/1

Showing 1-10 of 20 results
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Best time to book a flight from Montreal to Dublin

Have a flexible travel schedule? Discover the best time to fly to Dublin from Montreal with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Montreal to Dublin

How far ahead should I book a flight from Montreal to Dublin?

Use this chart to determine the optimal time to book a round-trip flight from Montreal to Dublin. Price data was last updated on 23 January 2026.

To ensure you get the cheapest price possible for a flight from Montreal to Dublin, you should look to book at least 85 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Montreal to Dublin?

Currently, September is the cheapest month in which you can book a flight from Montreal to Dublin (average of C$ 592). Flying from Montreal to Dublin in December is currently the most expensive (average of C$ 863). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

How much does it cost to fly round-trip from Montreal to Dublin?

What’s the top layover airport for flights from Montreal to Dublin?

Share of one-stop round-trip flights from Montreal to Dublin chosen by Cheapflights users in the past 12 months, using the same layover each way.

Toronto (YYZ) – chosen by Cheapflights users on 68% of one-stop itineraries from Montreal to Dublin on Cheapflights.

What’s the cheapest layover airport for flights from Montreal to Dublin?

Average round-trip fare for 1-stop flights from Montreal to Dublin, chosen by Cheapflights users in the past 12 months, with the same layover each way.

Newark (EWR) is the most affordable 1-stop option, with an average round-trip price of C$ 834.

What’s the fastest layover option from Montreal to Dublin?

Shortest average travel time for 1-stop one-way flights from Montreal to Dublin, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.

Flights via Washington, D.C. (IAD) have the shortest average one-way travel time for 1-stop routes: 10h 13m.

Which airport typically offers the quickest layover for flights from Montreal to Dublin?

Average layover duration for 1-stop one-way flights from Montreal to Dublin, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Paris (CDG) offer the fastest connection on this route, with an average layover time of 1h 34m.

How often are flights from Montreal to Dublin delayed?

About 7% of weekly flights between Montreal and Dublin have experienced delays in the past year, with the average delay time being 253 minutes.

What is the most punctual flight time for Montreal to Dublin flights?

Historically, flights departing in the evening are less likely to be delayed, whereas flights leaving in the evening tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Sunday tends to have the lowest number of delays on this route, whereas Wednesday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on Montreal to Dublin flights?

Over the past year, Air Canada has had the lowest number of delays on this route, with just 7% of flights being delayed.

Reviews of airlines servicing Dublin

Get insights into the airlines that provide service to Dublin. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Dublin. Reviews last updated 27 January 2026.
See what other customers who have flown with Porter Airlines,Air Transat, andAir Canada from Montreal to Dublin have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Porter Airlines
7.9
Good
412 reviews
Check prices

Overall

7.9

Comfort

7.9

Crew

8.6

Food

7.5

Boarding

8.2

Entertainment

6.9

Reviews

1 / 20
8.0
Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out
Porter Airlines
7.9
Good
412 reviews
Porter Airlines
7.9
Good
412 reviews
Check prices

Overall

7.9

Comfort

7.9

Crew

8.6

Food

7.5

Boarding

8.2

Entertainment

6.9

Reviews

1 / 20
8.0
Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out
Air Transat
7.7
Good
501 reviews
Porter Airlines
7.9
Good
412 reviews
Check prices

Overall

7.9

Comfort

7.9

Crew

8.6

Food

7.5

Boarding

8.2

Entertainment

6.9

Reviews

1 / 20
8.0
Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out
Air Canada
7.1
Good
10,663 reviews
Porter Airlines
7.9
Good
412 reviews
Check prices

Overall

7.9

Comfort

7.9

Crew

8.6

Food

7.5

Boarding

8.2

Entertainment

6.9

Reviews

1 / 20
8.0
Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out
Lufthansa
6.8
Okay
7,749 reviews
Porter Airlines
7.9
Good
412 reviews
Check prices

Overall

7.9

Comfort

7.9

Crew

8.6

Food

7.5

Boarding

8.2

Entertainment

6.9

Reviews

1 / 20
8.0
Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out
British Airways
6.7
Okay
7,704 reviews
Porter Airlines
7.9
Good
412 reviews
Check prices

Overall

7.9

Comfort

7.9

Crew

8.6

Food

7.5

Boarding

8.2

Entertainment

6.9

Reviews

1 / 20
8.0
Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out

Related info for your journey

Find useful and relevant information for your journey from Montreal to Dublin. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Dublin from Montreal?

    Located just 9.2 km from the city centre, Dublin is the airport most travellers will use when flying to Dublin from Montreal. Booking flights from Montreal to Dublin (DUB) should be relatively easy as there are 0 daily inbound flights from Montreal from 8 different airlines.

  • How long is the flight from Montreal to Dublin?

    A quick flight from Montreal to Dublin can take about 20h 35m. WestJet provides one of the quickest options available for as low as C$ 634. The distance between Montreal and Dublin is about 4768 km.

  • What are the cheapest airlines flying from Montreal to Dublin round-trip?

    Currently priced at C$ 581, Air Transat will fly you from Montreal to Dublin and back. In addition to Air Transat, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Porter Airlines and British Airways - these airlines can fly you to your destination from C$ 584 and C$ 638, respectively. Users have found that Air Transat is 39% cheaper than the other options available to this destination.

  • What are the cheapest airlines to fly from Montreal to Dublin one-way?

    The cheapest airlines for a one-way flight from Montreal to Dublin are Air Transat (C$ 231), WestJet (C$ 357), and Air Canada (C$ 435).

  • What are the cheapest flights from Montreal to Dublin?

    Looking for the cheapest flight from Montreal to Dublin? While on average our users pay C$ 1,126, our data indicates the cheapest price to be C$ 864. The most popular route (Montreal Pierre Elliott Trudeau Intl - Dublin), is priced around C$ 660.

  • Can I find deals for flights from Montreal to Dublin that include hotel bookings?

    Yes. In addition to deals on Montreal to Dublin flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Montreal to Dublin?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Montreal to Dublin.

  • Can I find deals for business class flights from Montreal to Dublin?

    Yes. Cheapflights offers flight deals from Montreal to Dublin by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Montreal to Dublin?

    Currently, September is the cheapest month in which you can book a flight from Montreal to Dublin (average of C$ 592). Flying from Montreal to Dublin in December is currently the most expensive (average of C$ 863). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Fly from Montreal to Dublin on these airlines

Choose from the following airlines for your flight from Montreal to Dublin. Flights are based on user searches made on Cheapflights and were last updated on 27 January 2026.
Air Canada flights from Montreal to Dublin
Lufthansa flights from Montreal to Dublin
Air Transat flights from Montreal to Dublin

Top 8 airlines flying from Montreal to Dublin

Discover the top 8 airlines that operate flights from Montreal to Dublin. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 27 January 2026.
AirlineCheapestAverageFlexibilityOn-time
Air TransatCheapestC$ 581AverageC$ 819FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
Porter AirlinesCheapestC$ 584AverageC$ 840FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
British AirwaysCheapestC$ 638AverageC$ 922FlexibilityNo cancel feeOn-time70%
Search British Airways flights
WestJetCheapestC$ 654AverageC$ 723FlexibilityNo cancel feeOn-time60%
Search WestJet flights
LufthansaCheapestC$ 761AverageC$ 974FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Air CanadaCheapestC$ 791AverageC$ 1,023FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
American AirlinesCheapestC$ 830AverageC$ 863FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
KLMCheapestC$ 923AverageC$ 1,122FlexibilityNo cancel feeOn-time75%
Search KLM flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Montreal to Dublin?

Cheapflights makes it easy to find Montreal to Dublin flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from Montreal to Dublin?

Cheapflights helps you find that perfect flight to Dublin from Montreal by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from Montreal to Dublin with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Montreal to Dublin flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from Montreal to Dublin become cheaper?

Yes, Cheapflights offers price alerts on Montreal to Dublin flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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