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Cheap flights from Montreal to Ireland from C$ 370

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 15/9. Fares are subject to change and may not be available on all flights or dates of travel.
YMQ — DUB
6 Sep — 13 Sep1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Montreal to Ireland

Enter your travel dates to find the best prices.

Cheapest flights from Montreal to Ireland
Explore the most affordable flight options available from Montreal to Ireland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 7 August 2026.

Sat 19/96:00 p.m. -
1 stop12h 30m
Mon 21/91:15 p.m. -
1 stop11h 15m
Deal found 7/8C$ 701
Mon 14/94:15 p.m. -
1 stop14h 15m
Mon 21/91:15 p.m. -
1 stop11h 15m
Deal found 7/8C$ 709
Tue 29/95:00 p.m. -
1 stop13h 30m
Sun 11/101:15 p.m. -
1 stop11h 17m
Deal found 6/8C$ 713
Tue 1/94:15 p.m. -
1 stop14h 15m
Tue 8/91:15 p.m. -
1 stop12h 15m
Deal found 4/8C$ 715
Fri 2/105:00 p.m. -
1 stop13h 30m
Wed 14/101:15 p.m. -
1 stop11h 05m
Deal found 2/8C$ 716
Tue 29/98:35 p.m. -
1 stop9h 55m
Wed 7/101:15 p.m. -
1 stop11h 17m
Deal found 7/8C$ 719
Tue 22/98:35 p.m. -
1 stop9h 55m
Wed 30/91:15 p.m. -
1 stop16h 22m
Deal found 6/8C$ 720
Sun 4/108:35 p.m. -
1 stop9h 55m
Wed 14/101:15 p.m. -
1 stop11h 05m
Deal found 7/8C$ 723
Sat 3/106:00 p.m. -
1 stop12h 30m
Wed 7/101:15 p.m. -
1 stop11h 05m
Deal found 7/8C$ 724
Thu 1/106:45 a.m. -
1 stop21h 35m
Mon 5/109:40 a.m. -
2 stops19h 45m
Deal found 3/8C$ 726
Thu 1/104:15 p.m. -
1 stop14h 15m
Wed 14/101:15 p.m. -
1 stop32h 47m
Deal found 5/8C$ 727
Sun 4/108:35 p.m. -
1 stop9h 55m
Fri 9/101:15 p.m. -
1 stop11h 15m
Deal found 6/8C$ 729

Find flight deals from Montreal to Ireland

Keep the following information in mind while searching for Montreal to Ireland flight deals. Data was last updated 7 August 2026.

Round-trip from

C$ 709

One-way from

C$ 370

Popular in

December

Cheapest in

September

Average price

C$ 965

Good round-trip deal

C$ 843 or less
Air Transat
  • Air Transat
  • 15/9-23/9
  • 2 total stops
  • 21h 00m total
  • Montreal to Ireland
Search Deals
15/9
  • 15/9
  • 1 total stop
  • 23h 55m total
  • Montreal to Ireland
Search Deals
Highest demand for flights based on searches. 5% potential increase in price (C$ 72 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (C$ 22 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in August 2026
Search Deals
Price to beat on a round-trip flight from Montreal (YMQ) to Ireland.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Montreal to Ireland 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 7 August 2026.
Use the filters below to find and compare flights from Montreal to Ireland that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

MontrealDublin

YUL Montreal Pierre Elliott Trudeau Intl - DUB Dublin

YULDUB

Montreal Pierre Elliott Trudeau Intl

Wed 16/9

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

1 stop9h 55m

Dublin

Tue 22/9

1:15 p.m.-8:30 p.m.

1 stop12h 15m

C$ 748

MontrealDublin

YUL Montreal Pierre Elliott Trudeau Intl - DUB Dublin

YULDUB

Montreal Pierre Elliott Trudeau Intl

Wed 16/9

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

1 stop9h 55m

Dublin

Wed 30/9

1:15 p.m.-7:20 p.m.

1 stop11h 05m

C$ 769
Quickest round-trip

MontrealDublin

YUL Montreal Pierre Elliott Trudeau Intl - DUB Dublin

YULDUB

Montreal Pierre Elliott Trudeau Intl

Tue 22/9

2:10 p.m.-8:15 a.m.

1 stop13h 05m

Dublin

Tue 29/9

9:20 a.m.-10:45 a.m.

Nonstop6h 25m

C$ 806

MontrealDublin

YUL Montreal Pierre Elliott Trudeau Intl - DUB Dublin

YULDUB

Montreal Pierre Elliott Trudeau Intl

Thu 17/9

6:15 p.m.-11:10 a.m.

1 stop11h 55m

Dublin

Tue 22/9

9:30 a.m.-4:10 p.m.

1 stop11h 40m

C$ 883

MontrealDublin

YUL Montreal Pierre Elliott Trudeau Intl - DUB Dublin

YULDUB

Montreal Pierre Elliott Trudeau Intl

Wed 16/9

11:23 a.m.-7:30 a.m.

1 stop15h 07m

Dublin

Wed 30/9

12:30 p.m.-7:45 p.m.

1 stop12h 15m

C$ 884

MontrealDublin

YUL Montreal Pierre Elliott Trudeau Intl - DUB Dublin

YULDUB

Montreal Pierre Elliott Trudeau Intl

Sun 20/9

7:55 a.m.-7:30 a.m.

1 stop18h 35m

Dublin

Sat 26/9

9:30 a.m.-4:10 p.m.

1 stop11h 40m

C$ 884

MontrealDublin

YUL Montreal Pierre Elliott Trudeau Intl - DUB Dublin

YULDUB

Montreal Pierre Elliott Trudeau Intl

Fri 25/9

6:00 a.m.-7:30 a.m.

1 stop20h 30m

Dublin

Fri 2/10

1:35 p.m.-4:10 p.m.

1 stop31h 35m

C$ 884

MontrealDublin

YUL Montreal Pierre Elliott Trudeau Intl - DUB Dublin

YULDUB

Montreal Pierre Elliott Trudeau Intl

Tue 15/9

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

2 stops16h 35m

Dublin

Wed 23/9

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

2 stops13h 10m

C$ 884

MontrealDublin

YUL Montreal Pierre Elliott Trudeau Intl - DUB Dublin

YULDUB

Montreal Pierre Elliott Trudeau Intl

Wed 9/9

6:15 p.m.-11:10 a.m.

1 stop11h 55m

Dublin

Tue 22/9

8:50 a.m.-7:01 p.m.

2 stops15h 11m

C$ 886

MontrealDublin

YUL Montreal Pierre Elliott Trudeau Intl - DUB Dublin

YULDUB

Montreal Pierre Elliott Trudeau Intl

Sun 6/9

8:50 a.m.-9:45 a.m.

1 stop19h 55m

Dublin

Fri 9/10

11:35 a.m.-12:00 p.m.

1 stop29h 25m

C$ 887

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/8

Showing 1-10 of 42 resultsSorted by cheapest first
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Best time to book a flight from Montreal to Ireland

Have a flexible travel schedule? Discover the best time to fly to Ireland 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 Ireland

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

Currently, May is the cheapest month in which you can book a flight from Montreal to Ireland (average of C$ 793). Flying from Montreal to Ireland in December is currently the most expensive (average of C$ 1,226). 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 IE?

Find hourly flight availability from Montreal to Ireland. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 7 August 2026.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Montreal to Ireland as you normally would.

How often are flights from Montreal to Ireland delayed?

About 17% of weekly flights between Montreal and Ireland have experienced delays in the past year, with the average delay time being 135 minutes.

What is the most punctual flight time for Montreal to Ireland 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?

Friday 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 Ireland flights?

Over the past year, Air Canada has had the lowest number of delays on this route, with just 17% of flights being delayed.

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

The best time to book flights from Montreal to Ireland is 87 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

Reviews of airlines servicing Ireland

Get insights into the airlines that provide service to Ireland. 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 Ireland. Reviews last updated 7 August 2026.
Get a feel of what it's like to fly with Air Transat,WestJet, andAir Canada from Montreal to Ireland by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Air Transat
7.8
Good
572 reviews
Check prices

Crew

8.5

Entertainment

7.1

Comfort

7.3

Boarding

8.0

Food

6.8

Overall

7.8

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
572 reviews
Air Transat
7.8
Good
572 reviews
Check prices

Crew

8.5

Entertainment

7.1

Comfort

7.3

Boarding

8.0

Food

6.8

Overall

7.8

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
3,426 reviews
Air Transat
7.8
Good
572 reviews
Check prices

Crew

8.5

Entertainment

7.1

Comfort

7.3

Boarding

8.0

Food

6.8

Overall

7.8

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
11,449 reviews
Air Transat
7.8
Good
572 reviews
Check prices

Crew

8.5

Entertainment

7.1

Comfort

7.3

Boarding

8.0

Food

6.8

Overall

7.8

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
8,177 reviews
Air Transat
7.8
Good
572 reviews
Check prices

Crew

8.5

Entertainment

7.1

Comfort

7.3

Boarding

8.0

Food

6.8

Overall

7.8

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
8,153 reviews
Air Transat
7.8
Good
572 reviews
Check prices

Crew

8.5

Entertainment

7.1

Comfort

7.3

Boarding

8.0

Food

6.8

Overall

7.8

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 Ireland. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Montreal to Ireland?

    Departing from Montreal to Ireland will take you 9h 55m. There are 4768 km between Montreal and Ireland. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • What are the most popular routes from Montreal to Ireland?

    The most popular route from Montreal to Ireland is Montreal Pierre Elliott Trudeau Intl - Dublin. You may also consider Montreal Pierre Elliott Trudeau Intl - Cork or Montreal Pierre Elliott Trudeau Intl - Shannon.

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

    Before booking your flight to Ireland from Montreal, check out the most reliable airlines to get you to your destination on time: Air Canada (50%), United Airlines (50%), Lufthansa( 50%).

  • What are the cheapest flights from Montreal to Ireland?

    While on average a flight from Montreal to Ireland is generally C$ 901, our data shows the cheapest flight currently is C$ 786. When looking at the most popular route, (Montreal Pierre Elliott Trudeau Intl - Dublin), you can expect to pay C$ 726 for that flight.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Montreal to Ireland 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 Ireland?

    Currently, May is the cheapest month in which you can book a flight from Montreal to Ireland (average of C$ 793). Flying from Montreal to Ireland in December is currently the most expensive (average of C$ 1,226). 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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Alternative routes for Montreal to Ireland

See prices for flight routes from nearby airports that may be better suited for you.
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Top 8 airlines flying from Montreal to Ireland

Discover the top 8 airlines that operate flights from Montreal to Ireland. 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 7 August 2026.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapestC$ 397AverageC$ 1,031FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Porter AirlinesCheapestC$ 511AverageC$ 665FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
Air TransatCheapestC$ 564AverageC$ 667FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
Aer LingusCheapestC$ 604AverageC$ 707FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
British AirwaysCheapestC$ 653AverageC$ 985FlexibilityNo cancel feeOn-time70%
Search British Airways flights
WestJetCheapestC$ 656AverageC$ 770FlexibilityNo cancel feeOn-time60%
Search WestJet flights
Air CanadaCheapestC$ 798AverageC$ 1,241FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
American AirlinesCheapestC$ 860AverageC$ 928FlexibilityNo 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 Ireland?

When you search for this flight from Montreal to Ireland, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

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

Cheapflights simply makes it quick and affordable to book flights from Montreal to Ireland by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

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

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

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

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Ireland from Montreal today and book when prices fit your budget.

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