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Cheap flights from Montreal to Dublin from C$ 223

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 5/10. Fares are subject to change and may not be available on all flights or dates of travel.
YMQ — DUB
11 Oct — 18 Oct1
1 adult
1 adult, Economy

Cheapflights Tip: The best prices from Montreal to Dublin are usually found in January or November, booked 85 days in advance, depart on a Wednesday or Monday and return on a Thursday

Cheap 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 11 September 2025.

Round-trip from

C$ 815

One-way from

C$ 223

Popular in

December

Cheapest in

January

Average price

C$ 902

Good round-trip deal

C$ 888 or less

Good one-way deal

C$ 1,032 or less
19/10-15/11
  • 19/10-15/11
  • 3 total stops
  • 31h 40m total
  • Montreal to Dublin
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Air Transat
  • Air Transat
  • 5/10
  • 1 total stop
  • 12h 30m total
  • Montreal to Dublin
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Highest demand for flights based on searches. 0% potential increase in price (C$ 0 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease (C$ 26 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Price to beat on a round-trip flight from Montreal (YMQ) to Dublin.
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Price to beat on a one-way flight from Montreal (YMQ) to Dublin.
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Find flight deals from Montreal to Dublin

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 11 September 2025.

Sun 19/108:15 p.m.YUL - DUB
1 stop10h 15mMultiple Airlines
Sat 15/117:50 p.m.DUB - YUL
2 stops21h 25mMultiple Airlines
Deal found 10/9C$ 815
Thu 9/107:29 a.m.YUL - DUB
1 stop17h 01mAmerican Airlines
Sat 15/114:05 p.m.DUB - YUL
1 stop31h 40mAmerican Airlines
Deal found 11/9C$ 816
Sat 25/108:20 a.m.YUL - DUB
2 stops19h 10mUnited Airlines
Sat 1/119:30 a.m.DUB - YUL
2 stops12h 55mUnited Airlines
Deal found 10/9C$ 818
Thu 25/1210:30 p.m.YUL - DUB
1 stop27h 40mAir Canada
Thu 8/19:30 a.m.DUB - YUL
2 stops26h 09mAir Canada
Deal found 9/9C$ 819
Fri 3/104:09 p.m.YUL - DUB
1 stop9h 21mAmerican Airlines
Sun 5/109:30 a.m.DUB - YUL
1 stop18h 27mAmerican Airlines
Deal found 10/9C$ 820
Sun 21/96:00 a.m.YUL - DUB
2 stops20h 10mUnited Airlines
Fri 26/911:35 a.m.DUB - YUL
1 stop14h 54mUnited Airlines
Deal found 11/9C$ 822
Thu 25/125:00 a.m.YUL - DUB
1 stop21h 10mAir Canada
Sat 10/19:00 a.m.DUB - YUL
2 stops26h 39mAir Canada
Deal found 9/9C$ 823
Thu 9/104:00 p.m.YUL - DUB
1 stop9h 30mAmerican Airlines
Wed 15/103:30 p.m.DUB - YUL
1 stop9h 45mAmerican Airlines
Deal found 10/9C$ 825
Thu 9/106:00 p.m.YUL - DUB
1 stop12h 30mMultiple Airlines
Thu 16/106:50 a.m.DUB - YUL
3 stops22h 47mMultiple Airlines
Deal found 9/9C$ 827
Sat 20/92:20 p.m.YUL - DUB
1 stop11h 50mAir Canada
Sat 27/98:50 a.m.DUB - YUL
1 stop11h 10mAir Canada
Deal found 10/9C$ 829
Sat 11/108:15 p.m.YUL - DUB
1 stop10h 15mMultiple Airlines
Tue 21/106:50 a.m.DUB - YUL
2 stops16h 43mMultiple Airlines
Deal found 10/9C$ 833

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 11 September 2025.
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 24/10

9:45 a.m.-7:10 a.m.

2 stops16h 25m

Dublin

Fri 31/10

1:35 p.m.-7:45 a.m.

2 stops22h 10m

C$ 818

MontrealDublin

YUL - DUB

YULDUB

Montreal Pierre Elliott Trudeau Intl

Fri 3/10

7:50 a.m.-6:30 a.m.

1 stop17h 40m

Dublin

Sun 5/10

9:30 a.m.-3:29 p.m.

1 stop10h 59m

C$ 818

MontrealDublin

YUL - DUB

YULDUB

Montreal Pierre Elliott Trudeau Intl

Sat 25/10

9:45 a.m.-10:55 a.m.

2 stops20h 10m

Dublin

Sat 1/11

9:30 a.m.-5:05 p.m.

1 stop11h 35m

C$ 818

MontrealDublin

YUL - DUB

YULDUB

Montreal Pierre Elliott Trudeau Intl

Mon 29/12

7:30 a.m.-8:40 a.m.

1 stop20h 10m

Dublin

Wed 7/1

11:30 a.m.-10:45 p.m.

1 stop16h 15m

C$ 822

MontrealDublin

YUL - DUB

YULDUB

Montreal Pierre Elliott Trudeau Intl

Sun 21/9

6:00 a.m.-7:10 a.m.

2 stops20h 10m

Dublin

Fri 26/9

11:35 a.m.-9:29 p.m.

1 stop14h 54m

C$ 822

MontrealDublin

YUL - DUB

YULDUB

Montreal Pierre Elliott Trudeau Intl

Wed 1/10

3:25 p.m.-10:20 a.m.

2 stops13h 55m

Dublin

Wed 8/10

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

2 stops13h 10m

C$ 822

MontrealDublin

YUL - DUB

YULDUB

Montreal Pierre Elliott Trudeau Intl

Tue 30/9

11:23 a.m.-7:10 a.m.

2 stops14h 47m

Dublin

Thu 9/10

9:20 a.m.-7:45 p.m.

2 stops15h 25m

C$ 822

MontrealDublin

YUL - DUB

YULDUB

Montreal Pierre Elliott Trudeau Intl

Sat 27/9

2:20 p.m.-7:10 a.m.

1 stop11h 50m

Dublin

Sun 12/10

8:50 a.m.-3:00 p.m.

1 stop11h 10m

C$ 825

MontrealDublin

YUL - DUB

YULDUB

Montreal Pierre Elliott Trudeau Intl

Sun 5/10

6:15 a.m.-7:10 a.m.

2 stops19h 55m

Dublin

Sat 11/10

9:20 a.m.-7:49 a.m.

2 stops27h 29m

C$ 825

MontrealDublin

YUL - DUB

YULDUB

Montreal Pierre Elliott Trudeau Intl

Thu 9/10

8:15 p.m.-11:30 a.m.

1 stop10h 15m

Dublin

Thu 16/10

6:25 p.m.-11:15 a.m.

1 stop21h 50m

C$ 830

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/9

Showing 1-10 of 21 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 29 August 2025.

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, January is the cheapest month in which you can book a flight from Montreal to Dublin (average of C$ 458). Flying from Montreal to Dublin in December is currently the most expensive (average of C$ 760). 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 11 September 2025.

It’s optimal to fly from Montreal to Dublin in the morning. By choosing this option you can save up to 15% on the cost of your flight, compared to a flight in the evening.

What is the cheapest day to fly from Montreal to Dublin?

Use this chart to determine the cheapest time to fly round-trip from Montreal to Dublin. Price data was last updated on 16 December 2024.

Travelers seeking maximum savings on their Montreal to Dublin flight should consider departing on Saturday at noon when fares are most often at their lowest. Thursday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

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 67% 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$ 844.

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 Washington, D.C. (IAD) offer the fastest connection on this route, with an average layover time of 1h 38m.

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 11 September 2025.
See what other customers who have flown with Porter Airlines,Air Transat, andAer Lingus 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
363 reviews
Check prices

Boarding

8.1

Overall

7.9

Entertainment

7.0

Food

7.6

Crew

8.6

Comfort

7.9

Reviews

1 / 20
2.0
Mediocre

Anonymous,Sep 2025

YYZ - OPO

Very disappointing, booked with Porter airlines and changed to Air Transit last minute. Old plane, cramped seating, even the aisle was the narrowest I’ve ever seen. Very uncomfortable flight. Full meal at 130 am and only a small piece of banana bread in the morning… should be opposite.
Porter Airlines
7.9
Good
363 reviews
Porter Airlines
7.9
Good
363 reviews
Check prices

Boarding

8.1

Overall

7.9

Entertainment

7.0

Food

7.6

Crew

8.6

Comfort

7.9

Reviews

1 / 20
2.0
Mediocre

Anonymous,Sep 2025

YYZ - OPO

Very disappointing, booked with Porter airlines and changed to Air Transit last minute. Old plane, cramped seating, even the aisle was the narrowest I’ve ever seen. Very uncomfortable flight. Full meal at 130 am and only a small piece of banana bread in the morning… should be opposite.
Air Transat
7.7
Good
438 reviews
Porter Airlines
7.9
Good
363 reviews
Check prices

Boarding

8.1

Overall

7.9

Entertainment

7.0

Food

7.6

Crew

8.6

Comfort

7.9

Reviews

1 / 20
2.0
Mediocre

Anonymous,Sep 2025

YYZ - OPO

Very disappointing, booked with Porter airlines and changed to Air Transit last minute. Old plane, cramped seating, even the aisle was the narrowest I’ve ever seen. Very uncomfortable flight. Full meal at 130 am and only a small piece of banana bread in the morning… should be opposite.
Aer Lingus
7.2
Good
1,271 reviews
Porter Airlines
7.9
Good
363 reviews
Check prices

Boarding

8.1

Overall

7.9

Entertainment

7.0

Food

7.6

Crew

8.6

Comfort

7.9

Reviews

1 / 20
2.0
Mediocre

Anonymous,Sep 2025

YYZ - OPO

Very disappointing, booked with Porter airlines and changed to Air Transit last minute. Old plane, cramped seating, even the aisle was the narrowest I’ve ever seen. Very uncomfortable flight. Full meal at 130 am and only a small piece of banana bread in the morning… should be opposite.
Air Canada
7.1
Good
10,000 reviews
Porter Airlines
7.9
Good
363 reviews
Check prices

Boarding

8.1

Overall

7.9

Entertainment

7.0

Food

7.6

Crew

8.6

Comfort

7.9

Reviews

1 / 20
2.0
Mediocre

Anonymous,Sep 2025

YYZ - OPO

Very disappointing, booked with Porter airlines and changed to Air Transit last minute. Old plane, cramped seating, even the aisle was the narrowest I’ve ever seen. Very uncomfortable flight. Full meal at 130 am and only a small piece of banana bread in the morning… should be opposite.
Lufthansa
6.8
Okay
7,409 reviews
Porter Airlines
7.9
Good
363 reviews
Check prices

Boarding

8.1

Overall

7.9

Entertainment

7.0

Food

7.6

Crew

8.6

Comfort

7.9

Reviews

1 / 20
2.0
Mediocre

Anonymous,Sep 2025

YYZ - OPO

Very disappointing, booked with Porter airlines and changed to Air Transit last minute. Old plane, cramped seating, even the aisle was the narrowest I’ve ever seen. Very uncomfortable flight. Full meal at 130 am and only a small piece of banana bread in the morning… should be opposite.

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 12 different airlines.

  • How long is the flight from Montreal to Dublin?

    A quick flight from Montreal to Dublin can take about 16h 25m. United Airlines provides one of the quickest options available for as low as C$ 818. 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$ 591, 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 WestJet - these airlines can fly you to your destination from C$ 594 and C$ 670, respectively. Users have found that Porter Airlines 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 Porter Airlines (C$ 224), Air Transat (C$ 231), and WestJet (C$ 356).

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

    Consider Air Canada (82%), United Airlines (82%) or Lufthansa (82%) 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$ 1,073, our data indicates the cheapest price to be C$ 825. The most popular route (Montreal Pierre Elliott Trudeau Intl - Dublin), is priced around C$ 615.

  • 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, January is the cheapest month in which you can book a flight from Montreal to Dublin (average of C$ 458). Flying from Montreal to Dublin in December is currently the most expensive (average of C$ 760). 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 11 September 2025.
Air Canada flights from Montreal to Dublin
Air Transat flights from Montreal to Dublin
Lufthansa flights from Montreal to Dublin

Top 10 airlines flying from Montreal to Dublin

Discover the top 10 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 11 September 2025.
AirlineCheapestAverageFlexibilityOn-time
Porter AirlinesCheapestC$ 591AverageC$ 849FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
Air TransatCheapestC$ 594AverageC$ 874FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
WestJetCheapestC$ 670AverageC$ 911FlexibilityNo cancel feeOn-time60%
Search WestJet flights
Aer LingusCheapestC$ 684AverageC$ 746FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
TAP AIR PORTUGALCheapestC$ 712AverageC$ 897FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
LufthansaCheapestC$ 778AverageC$ 1,014FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Air FranceCheapestC$ 824AverageC$ 921FlexibilityNo cancel feeOn-time77%
Search Air France flights
British AirwaysCheapestC$ 832AverageC$ 932FlexibilityNo cancel feeOn-time70%
Search British Airways flights
American AirlinesCheapestC$ 840AverageC$ 873FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
Air CanadaCheapestC$ 844AverageC$ 1,046FlexibilityNo cancel feeOn-time67%
Search Air Canada 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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