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Cheap flights from Montreal to Dublin from C$ 356

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 21/10. Fares are subject to change and may not be available on all flights or dates of travel.
YMQ — DUB
28 Aug — 4 Sep1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Montreal to Dublin are usually found in September or July, booked 59 days in advance, depart on a Saturday or Thursday and return on a Tuesday

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 29 July 2026.

Fri 9/105:00 p.m.
YUL
-
DUB
1 stop13h 30m
Air Transat
Mon 19/101:15 p.m.
DUB
-
YUL
1 stop11h 15m
Air Transat
Deal found 29/7C$ 729
Sat 10/105:00 p.m.
YUL
-
DUB
1 stop13h 30m
Air Transat
Mon 19/101:15 p.m.
DUB
-
YUL
1 stop11h 17m
Air Transat
Deal found 25/7C$ 731
Tue 22/95:00 p.m.
YUL
-
DUB
1 stop13h 30m
Porter Airlines
Tue 29/91:15 p.m.
DUB
-
YUL
1 stop32h 47m
Porter Airlines
Deal found 24/7C$ 732
Sun 9/86:45 a.m.
YUL
-
DUB
2 stops20h 35m
WestJet
Tue 18/810:40 a.m.
DUB
-
YUL
1 stop11h 05m
WestJet
Deal found 25/7C$ 736
Thu 8/105:45 p.m.
YUL
-
DUB
1 stop10h 35m
WestJet
Thu 15/1010:00 a.m.
DUB
-
YUL
2 stops19h 25m
WestJet
Deal found 25/7C$ 738
Thu 17/95:00 p.m.
YUL
-
DUB
1 stop13h 30m
Porter Airlines
Tue 29/91:15 p.m.
DUB
-
YUL
1 stop11h 17m
Porter Airlines
Deal found 27/7C$ 739
Tue 11/82:50 p.m.
YUL
-
DUB
1 stop15h 40m
Porter Airlines
Tue 18/81:15 p.m.
DUB
-
YUL
1 stop32h 47m
Porter Airlines
Deal found 24/7C$ 741
Thu 1/105:45 p.m.
YUL
-
DUB
2 stops33h 35m
WestJet
Fri 16/1010:40 a.m.
DUB
-
YUL
1 stop18h 45m
WestJet
Deal found 29/7C$ 742
Sat 10/107:20 p.m.
YUL
-
DUB
1 stop9h 00m
WestJet
Fri 23/1010:40 a.m.
DUB
-
YUL
1 stop18h 45m
WestJet
Deal found 26/7C$ 745
Tue 11/86:45 a.m.
YUL
-
DUB
2 stops20h 35m
WestJet
Wed 26/89:40 a.m.
DUB
-
YUL
2 stops36h 05m
WestJet
Deal found 29/7C$ 746
Sat 3/104:15 p.m.
YUL
-
DUB
1 stop14h 15m
Air Transat
Mon 12/101:15 p.m.
DUB
-
YUL
1 stop11h 15m
Air Transat
Deal found 27/7C$ 748

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 29 July 2026.

Round-trip from

C$ 731

One-way from

C$ 356

Popular in

December

Cheapest in

September

Average price

C$ 875

Good round-trip deal

C$ 847 or less
Air Transat
  • Air Transat
  • 10/10-19/10
  • 2 total stops
  • 24h 47m total
  • Montreal to Dublin
Search Deals
WestJet
  • WestJet
  • 21/10
  • 2 total stops
  • 20h 55m total
  • Montreal to Dublin
Search Deals
Highest demand for flights based on searches. 3% potential increase in price (C$ 44 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 0% potential price decrease (C$ 10 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 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 29 July 2026.
Use the filters below to find and compare flights from Montreal to Dublin that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

MontrealDublin

YUL - DUB

YULDUB

Montreal Pierre Elliott Trudeau Intl

Mon 14/9

8:35 p.m.-11:30 a.m.

1 stop9h 55m

Dublin

Thu 17/9

1:15 p.m.-12:37 a.m.

1 stop16h 22m

C$ 752

MontrealDublin

YUL - DUB

YULDUB

Montreal Pierre Elliott Trudeau Intl

Fri 25/9

8:50 p.m.-7:45 a.m.

Nonstop5h 55m

Dublin

Wed 30/9

6:35 p.m.-3:00 p.m.

1 stop25h 25m

C$ 828

MontrealDublin

YUL - DUB

YULDUB

Montreal Pierre Elliott Trudeau Intl

Mon 7/9

5:45 p.m.-9:20 a.m.

1 stop10h 35m

Dublin

Mon 14/9

6:30 a.m.-9:00 p.m.

1 stop19h 30m

C$ 855
Quickest round-trip

MontrealDublin

YUL - DUB

YULDUB

Montreal Pierre Elliott Trudeau Intl

Mon 17/8

4:40 p.m.-8:15 a.m.

1 stop10h 35m

Dublin

Tue 25/8

9:50 a.m.-11:15 a.m.

Nonstop6h 25m

C$ 871

MontrealDublin

YUL - DUB

YULDUB

Montreal Pierre Elliott Trudeau Intl

Sat 12/9

8:00 p.m.-10:40 a.m.

2 stops33h 40m

Dublin

Sat 19/9

8:50 a.m.-6:55 p.m.

2 stops15h 05m

C$ 892

MontrealDublin

YUL - DUB

YULDUB

Montreal Pierre Elliott Trudeau Intl

Fri 18/9

1:05 p.m.-10:40 a.m.

1 stop16h 35m

Dublin

Mon 28/9

9:30 a.m.-5:19 p.m.

1 stop12h 49m

C$ 892

MontrealDublin

YUL - DUB

YULDUB

Montreal Pierre Elliott Trudeau Intl

Tue 13/10

4:40 p.m.-8:15 a.m.

1 stop10h 35m

Dublin

Thu 22/10

9:50 a.m.-6:52 p.m.

1 stop14h 02m

C$ 910

MontrealDublin

YUL - DUB

YULDUB

Montreal Pierre Elliott Trudeau Intl

Tue 18/8

1:10 p.m.-10:40 a.m.

2 stops16h 30m

Dublin

Tue 29/9

8:50 a.m.-5:00 p.m.

2 stops13h 10m

C$ 923

MontrealDublin

YUL - DUB

YULDUB

Montreal Pierre Elliott Trudeau Intl

Tue 11/8

2:20 p.m.-7:20 a.m.

1 stop12h 00m

Dublin

Sun 16/8

11:35 a.m.-10:40 a.m.

1 stop28h 05m

C$ 950

MontrealDublin

YUL - DUB

YULDUB

Montreal Pierre Elliott Trudeau Intl

Thu 13/8

2:20 p.m.-10:40 a.m.

1 stop15h 20m

Dublin

Thu 20/8

12:30 p.m.-10:40 a.m.

2 stops27h 10m

C$ 950

Flights are sorted by cheapest round-trip flights first.

Deals found on 24/7

Showing 1-10 of 19 resultsSorted by cheapest first
1
2

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

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

Currently, May is the cheapest month in which you can book a flight from Montreal to Dublin (average of C$ 803). Flying from Montreal to Dublin in December is currently the most expensive (average of C$ 1,195). 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.

What is the cheapest time of day to fly from YMQ to DUB?

Find hourly flight availability from Montreal to Dublin. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 29 July 2026.

When flying from Montreal to Dublin, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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

Airfare is below average for this route at the moment.
Montreal to Dublin flights typically cost between C$ 856 and C$ 1,122 in October.
The cheapest round-trip price found within the last 5 days was C$ 729 on Air Transat (9 Oct-19 Oct).

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 69% 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.

Boston (BOS) is the most affordable 1-stop option, with an average round-trip price of C$ 622.

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 Paris (CDG) have the shortest average one-way travel time for 1-stop routes: 10h 15m.

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 33m.

How often are flights from Montreal to Dublin delayed?

About 14% of weekly flights between Montreal and Dublin have experienced delays in the past year, with the average delay time being 178 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 14% of flights being delayed.

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

To ensure you get the cheapest price possible for a flight from Montreal to Dublin, you should look to book at least 87 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.

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 29 July 2026.
See what other customers who have flown with Air Transat,WestJet, 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.
Air Transat
7.8
Good
568 reviews
Check prices

Boarding

8.0

Food

6.8

Crew

8.5

Entertainment

7.1

Overall

7.8

Comfort

7.3

Reviews

1 / 20
8.0
Excellent

Paul,Jul 2026

YUL - LGW

Had to bus to the plane which made priority boarding at the back of the bus
Air Transat
7.8
Good
568 reviews
Air Transat
7.8
Good
568 reviews
Check prices

Boarding

8.0

Food

6.8

Crew

8.5

Entertainment

7.1

Overall

7.8

Comfort

7.3

Reviews

1 / 20
8.0
Excellent

Paul,Jul 2026

YUL - LGW

Had to bus to the plane which made priority boarding at the back of the bus
WestJet
7.2
Good
3,415 reviews
Air Transat
7.8
Good
568 reviews
Check prices

Boarding

8.0

Food

6.8

Crew

8.5

Entertainment

7.1

Overall

7.8

Comfort

7.3

Reviews

1 / 20
8.0
Excellent

Paul,Jul 2026

YUL - LGW

Had to bus to the plane which made priority boarding at the back of the bus
Air Canada
7.1
Good
11,404 reviews
Air Transat
7.8
Good
568 reviews
Check prices

Boarding

8.0

Food

6.8

Crew

8.5

Entertainment

7.1

Overall

7.8

Comfort

7.3

Reviews

1 / 20
8.0
Excellent

Paul,Jul 2026

YUL - LGW

Had to bus to the plane which made priority boarding at the back of the bus
Lufthansa
6.8
Okay
8,163 reviews
Air Transat
7.8
Good
568 reviews
Check prices

Boarding

8.0

Food

6.8

Crew

8.5

Entertainment

7.1

Overall

7.8

Comfort

7.3

Reviews

1 / 20
8.0
Excellent

Paul,Jul 2026

YUL - LGW

Had to bus to the plane which made priority boarding at the back of the bus
British Airways
6.7
Okay
8,131 reviews
Air Transat
7.8
Good
568 reviews
Check prices

Boarding

8.0

Food

6.8

Crew

8.5

Entertainment

7.1

Overall

7.8

Comfort

7.3

Reviews

1 / 20
8.0
Excellent

Paul,Jul 2026

YUL - LGW

Had to bus to the plane which made priority boarding at the back of the bus

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 is 1 daily inbound flight 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 9h 55m. Porter Airlines provides one of the quickest options available for as low as C$ 752. The distance between Montreal and Dublin is about 4768 km. Both multi-stop and direct flights can be found to your destination and back.

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

    Currently priced at C$ 514, Porter Airlines will fly you from Montreal to Dublin and back. In addition to Porter Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Air Transat and Aer Lingus - these airlines can fly you to your destination from C$ 568 and C$ 608, respectively. Users have found that Porter Airlines is 44% cheaper than the other options available to this destination.

  • What are the most reliable airlines from Montreal to Dublin?

    Consider Air Canada (53%), United Airlines (53%) or Lufthansa (53%) when booking your flight. These represent the most reliable airlines when flying from Montreal to Dublin.

  • 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$ 851, our data indicates the cheapest price to be C$ 791. The most popular route (Montreal Pierre Elliott Trudeau Intl - Dublin), is priced around C$ 268.

  • 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, May is the cheapest month in which you can book a flight from Montreal to Dublin (average of C$ 803). Flying from Montreal to Dublin in December is currently the most expensive (average of C$ 1,195). 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

Travelling to a place near Dublin?

Book flights to Dublin if you plan to visit one of these locations
Swords
Athlone

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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 29 July 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 29 July 2026.
AirlineCheapestAverageFlexibilityOn-time
Porter AirlinesCheapestC$ 514AverageC$ 669FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
Air TransatCheapestC$ 568AverageC$ 674FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
Aer LingusCheapestC$ 608AverageC$ 712FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
British AirwaysCheapestC$ 658AverageC$ 992FlexibilityNo cancel feeOn-time70%
Search British Airways flights
WestJetCheapestC$ 660AverageC$ 775FlexibilityNo cancel feeOn-time60%
Search WestJet flights
LufthansaCheapestC$ 728AverageC$ 1,009FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Air CanadaCheapestC$ 804AverageC$ 1,038FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
American AirlinesCheapestC$ 866AverageC$ 934FlexibilityNo cancel feeOn-time71%
Search American Airlines 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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