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Cheap flights from London Heathrow Airport to Montreal Pierre Elliott Trudeau Intl Airport from £326

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 13/4. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — YUL
28 Apr — 5 May1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from London Heathrow to Montreal Pierre Elliott Trudeau Intl are usually found in September or May, booked 86 days in advance, depart on a Friday or Wednesday and return on a Sunday

Cheap flight deals from Heathrow to Pierre Elliott Trudeau Intl

Enter your travel dates to find the best prices.

Cheapest flights from Heathrow to Pierre Elliott Trudeau Intl
Explore the most affordable flight options available from Heathrow to Pierre Elliott Trudeau Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 29 March 2026.

Sun 5/414:05
LHR
-
YUL
Nonstop7h 35m
Air Canada
Thu 30/413:20
YUL
-
LHR
1 stop12h 10m
Air Canada
Deal found 26/3£425
Fri 10/408:30
LHR
-
YUL
1 stop10h 51m
Air Canada
Thu 30/413:20
YUL
-
LHR
1 stop12h 10m
Air Canada
Deal found 26/3£430
Thu 9/408:30
LHR
-
YUL
1 stop14h 53m
Air Canada
Wed 29/416:40
YUL
-
LHR
1 stop14h 10m
Air Canada
Deal found 26/3£434
Thu 25/608:30
LHR
-
YUL
1 stop14h 30m
Air Canada
Tue 30/611:10
YUL
-
LHR
1 stop14h 25m
Air Canada
Deal found 25/3£435
Wed 3/613:45
LHR
-
YUL
1 stop12h 00m
TAP AIR PORTUGAL
Wed 10/622:45
YUL
-
LHR
1 stop19h 10m
TAP AIR PORTUGAL
Deal found 26/3£436
Thu 4/619:50
LHR
-
YUL
1 stop30h 20m
TAP AIR PORTUGAL
Thu 11/622:45
YUL
-
LHR
1 stop14h 00m
TAP AIR PORTUGAL
Deal found 27/3£437
Thu 11/613:45
LHR
-
YUL
1 stop12h 25m
TAP AIR PORTUGAL
Sun 14/622:45
YUL
-
LHR
1 stop15h 05m
TAP AIR PORTUGAL
Deal found 25/3£438
Thu 11/613:45
LHR
-
YUL
1 stop12h 25m
TAP AIR PORTUGAL
Mon 15/622:45
YUL
-
LHR
1 stop18h 15m
TAP AIR PORTUGAL
Deal found 28/3£440
Mon 8/608:00
LHR
-
YUL
1 stop18h 10m
TAP AIR PORTUGAL
Mon 15/622:45
YUL
-
LHR
1 stop15h 05m
TAP AIR PORTUGAL
Deal found 25/3£443
Thu 4/618:45
LHR
-
YUL
1 stop31h 25m
TAP AIR PORTUGAL
Sun 7/622:45
YUL
-
LHR
1 stop19h 10m
TAP AIR PORTUGAL
Deal found 24/3£449

Find flight deals from Heathrow to Pierre Elliott Trudeau Intl

Discover tips and strategies to find the most affordable flight options for your journey from Heathrow (LHR) to Pierre Elliott Trudeau Intl (YUL). 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 March 2026.

Round-trip from

£425

One-way from

£326

Popular in

August

Cheapest in

September

Average price

£494

Good round-trip deal

£533 or less

Good one-way deal

£382 or less
Air Canada
  • Air Canada
  • 9/4-28/4
  • 1 total stop
  • 19h 09m total
  • London to Montreal
Search Deals
13/4
  • 13/4
  • 1 total stop
  • 20h 55m total
  • London to Montreal
Search Deals
Highest demand for flights based on searches. 7% potential increase in price (£30 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£8 potential savings vs. average return price).
Search Deals
Average for round-trip flights in March 2026
Search Deals
Price to beat on a round-trip flight from London Heathrow to Montreal Pierre Elliott Trudeau Intl.
Search Deals
Price to beat on a one-way flight from London Heathrow to Montreal Pierre Elliott Trudeau Intl.
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Heathrow to Pierre Elliott Trudeau Intl 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 858,174 searches. Data last updated 29 March 2026.
Use the filters below to find and compare flights from London Heathrow Airport to Montreal Pierre Elliott Trudeau Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonMontreal

LHR - YUL

LHRYUL

London Heathrow

Tue 8/9

20:50-17:20

1 stop25h 30m

Montreal Pierre Elliott Trudeau Intl

Tue 22/9

23:45-09:10

1 stop28h 25m

£531

LondonMontreal

LHR - YUL

LHRYUL

London Heathrow

Tue 9/6

06:30-16:55

1 stop15h 25m

Montreal Pierre Elliott Trudeau Intl

Tue 16/6

17:00-10:30

1 stop12h 30m

£554

LondonMontreal

LHR - YUL

LHRYUL

London Heathrow

Thu 23/4

09:30-16:10

1 stop11h 40m

Montreal Pierre Elliott Trudeau Intl

Sun 10/5

08:15-10:40

2 stops21h 25m

£557

LondonMontreal

LHR - YUL

LHRYUL

London Heathrow

Fri 24/4

16:40-08:38

2 stops20h 58m

Montreal Pierre Elliott Trudeau Intl

Fri 1/5

06:00-21:25

1 stop10h 25m

£559

LondonMontreal

LHR - YUL

LHRYUL

London Heathrow

Tue 14/4

06:00-15:00

1 stop14h 00m

Montreal Pierre Elliott Trudeau Intl

Tue 21/4

16:40-13:00

2 stops15h 20m

£568

LondonMontreal

LHR - YUL

LHRYUL

London Heathrow

Sat 2/5

18:40-15:00

1 stop25h 20m

Montreal Pierre Elliott Trudeau Intl

Mon 1/6

20:20-16:35

1 stop15h 15m

£575

LondonMontreal

LHR - YUL

LHRYUL

London Heathrow

Tue 5/5

07:30-17:25

2 stops14h 55m

Montreal Pierre Elliott Trudeau Intl

Wed 1/7

15:25-10:40

2 stops14h 15m

£584

LondonMontreal

LHR - YUL

LHRYUL

London Heathrow

Tue 23/6

07:30-17:24

2 stops14h 54m

Montreal Pierre Elliott Trudeau Intl

Tue 14/7

06:00-20:40

1 stop9h 40m

£584

LondonMontreal

LHR - YUL

LHRYUL

London Heathrow

Wed 3/6

08:00-20:45

1 stop17h 45m

Montreal Pierre Elliott Trudeau Intl

Sun 7/6

22:45-17:45

1 stop14h 00m

£585
Fastest return journey

LondonMontreal

LHR - YUL

LHRYUL

London Heathrow

Thu 25/6

11:45-16:55

1 stop10h 10m

Montreal Pierre Elliott Trudeau Intl

Sat 4/7

17:00-07:55

1 stop9h 55m

£587

Flights are sorted by cheapest return flights first.

Deals found on 25/3

Showing 1-10 of 22 resultsSorted by cheapest first
1
2
3

Best time to book a flight from Heathrow to Pierre Elliott Trudeau Intl

Have a flexible travel schedule? Discover the best time to fly to Pierre Elliott Trudeau Intl from Heathrow with our price prediction graph.
Estimated return 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 London Heathrow Airport to Montreal Pierre Elliott Trudeau Intl Airport

How far ahead should I book a flight from London Heathrow Airport to Montreal Pierre Elliott Trudeau Intl Airport?

Use this chart to determine the optimal time to book a return flight from Heathrow to Pierre Elliott Trudeau Intl. Price data was last updated on 13 March 2026.

The best time to book flights from London Heathrow Airport to Montreal Pierre Elliott Trudeau Intl Airport is 86 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.

What is the cheapest month to book a flight from London Heathrow Airport to Montreal Pierre Elliott Trudeau Intl Airport?

Currently, May is the cheapest month in which you can book a flight from London Heathrow Airport to Montreal Pierre Elliott Trudeau Intl Airport (average of £337). Flying from London Heathrow Airport to Montreal Pierre Elliott Trudeau Intl Airport in July is currently the most expensive (average of £409). 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 LHR to YUL?

Find hourly flight availability from Heathrow to Pierre Elliott Trudeau Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 29 March 2026.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from London Heathrow Airport to Montreal Pierre Elliott Trudeau Intl Airport as you normally would.

How much does it cost for a return flight from London Heathrow Airport to Montreal Pierre Elliott Trudeau Intl Airport?

Reviews of airlines servicing Pierre Elliott Trudeau Intl

Get insights into the airlines that provide service to Pierre Elliott Trudeau Intl. 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 Pierre Elliott Trudeau Intl. Reviews last updated 29 March 2026.
Read through reviews of airlines operating flights from London Heathrow Airport to Montreal Pierre Elliott Trudeau Intl Airport, such as Air Transat,United Airlines, andAir Canada. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Air Transat
7.7
Good
529 reviews
Check prices

Comfort

7.3

Food

6.8

Crew

8.4

Boarding

7.9

Entertainment

7.0

Overall

7.7

Reviews

1 / 20
2.0
Mediocre

Anonymous,Dec 2025

YOW - GCM

The flight was delayed for 3.5 hours. No compensation for a meal voucher. We were positioned at the back of the plane and the toilets were not working properly. It was a foul smell coming from the toilet.
Air Transat
7.7
Good
529 reviews
Air Transat
7.7
Good
529 reviews
Check prices

Comfort

7.3

Food

6.8

Crew

8.4

Boarding

7.9

Entertainment

7.0

Overall

7.7

Reviews

1 / 20
2.0
Mediocre

Anonymous,Dec 2025

YOW - GCM

The flight was delayed for 3.5 hours. No compensation for a meal voucher. We were positioned at the back of the plane and the toilets were not working properly. It was a foul smell coming from the toilet.
United Airlines
7.4
Good
9,514 reviews
Air Transat
7.7
Good
529 reviews
Check prices

Comfort

7.3

Food

6.8

Crew

8.4

Boarding

7.9

Entertainment

7.0

Overall

7.7

Reviews

1 / 20
2.0
Mediocre

Anonymous,Dec 2025

YOW - GCM

The flight was delayed for 3.5 hours. No compensation for a meal voucher. We were positioned at the back of the plane and the toilets were not working properly. It was a foul smell coming from the toilet.
Air Canada
7.1
Good
10,863 reviews
Air Transat
7.7
Good
529 reviews
Check prices

Comfort

7.3

Food

6.8

Crew

8.4

Boarding

7.9

Entertainment

7.0

Overall

7.7

Reviews

1 / 20
2.0
Mediocre

Anonymous,Dec 2025

YOW - GCM

The flight was delayed for 3.5 hours. No compensation for a meal voucher. We were positioned at the back of the plane and the toilets were not working properly. It was a foul smell coming from the toilet.
Lufthansa
6.8
Okay
7,874 reviews
Air Transat
7.7
Good
529 reviews
Check prices

Comfort

7.3

Food

6.8

Crew

8.4

Boarding

7.9

Entertainment

7.0

Overall

7.7

Reviews

1 / 20
2.0
Mediocre

Anonymous,Dec 2025

YOW - GCM

The flight was delayed for 3.5 hours. No compensation for a meal voucher. We were positioned at the back of the plane and the toilets were not working properly. It was a foul smell coming from the toilet.
British Airways
6.7
Okay
7,834 reviews
Air Transat
7.7
Good
529 reviews
Check prices

Comfort

7.3

Food

6.8

Crew

8.4

Boarding

7.9

Entertainment

7.0

Overall

7.7

Reviews

1 / 20
2.0
Mediocre

Anonymous,Dec 2025

YOW - GCM

The flight was delayed for 3.5 hours. No compensation for a meal voucher. We were positioned at the back of the plane and the toilets were not working properly. It was a foul smell coming from the toilet.

Related info for your journey

Find useful and relevant information for your journey from Heathrow to Pierre Elliott Trudeau Intl. 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 London Heathrow Airport to Montreal Pierre Elliott Trudeau Intl Airport?

    Departing from London Heathrow Airport to Montreal Pierre Elliott Trudeau Intl Airport will take you 11h 40m. London Heathrow Airport and Montreal Pierre Elliott Trudeau Intl Airport are separated by a distance of 3239 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • What are the cheapest airlines flying from London Heathrow Airport to Montreal Pierre Elliott Trudeau Intl Airport round-trip?

    Our cheapest airline available from London Heathrow Airport to Montreal Pierre Elliott Trudeau Intl Airport is Air Transat. Our recent data shows that you can find tickets from as low as £324 on this airline. Additional options worth looking into are United Airlines and Air Canada, starting at £330 and £364 round-trip. Air Transat is priced at 35% lower than the current average price of a flight leaving 3 months from now.

  • What are the cheapest airlines to fly from London Heathrow Airport to Montreal Pierre Elliott Trudeau Intl Airport one-way?

    One-way options have recently been found by users for as low as £281 on Virgin Atlantic. Other airlines that offer cheap prices include British Airways from £294 and TAP AIR PORTUGAL from £331 one-way.

  • What are the most reliable airlines from London Heathrow Airport to Montreal Pierre Elliott Trudeau Intl Airport?

    Consider Aegean Airlines (96%), Air Canada (90%) or Austrian Airlines (90%) when booking your flight. These represent the most reliable airlines when flying from London Heathrow Airport to Montreal Pierre Elliott Trudeau Intl Airport.

  • What are the cheapest flights from London Heathrow Airport to Montreal Pierre Elliott Trudeau Intl Airport?

    Looking at all options, your cheapest flight can be booked for £348. While the most popular route (London Heathrow - Montreal Pierre Elliott Trudeau Intl) can be booked for £436 on average, our data indicates £1,075 when flying from London Heathrow Airport to Montreal Pierre Elliott Trudeau Intl Airport.

  • Can I find deals for flights from Heathrow to Pierre Elliott Trudeau Intl that include hotel bookings?

    Yes. In addition to deals on Heathrow to Pierre Elliott Trudeau Intl flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Heathrow to Pierre Elliott Trudeau Intl?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Heathrow to Pierre Elliott Trudeau Intl.

  • Can I find deals for business class flights from Heathrow to Pierre Elliott Trudeau Intl?

    Yes. Cheapflights offers flight deals from Heathrow to Pierre Elliott Trudeau Intl 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 London Heathrow Airport to Montreal Pierre Elliott Trudeau Intl Airport?

    Currently, May is the cheapest month in which you can book a flight from London Heathrow Airport to Montreal Pierre Elliott Trudeau Intl Airport (average of £337). Flying from London Heathrow Airport to Montreal Pierre Elliott Trudeau Intl Airport in July is currently the most expensive (average of £409). 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 Montreal Pierre Elliott Trudeau Intl Airport?

Book flights to Montreal Pierre Elliott Trudeau Intl Airport if you plan to visit one of these locations
Cornwall
Laval

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Alternative routes for Heathrow to Pierre Elliott Trudeau Intl

See prices for flight routes from nearby airports that may be better suited for you.
Gatwick to Pierre Elliott Trudeau Intl flights
Stansted to Pierre Elliott Trudeau Intl flights
London City to Pierre Elliott Trudeau Intl flights
Luton to Pierre Elliott Trudeau Intl flights

Top 7 airlines flying from Heathrow to Pierre Elliott Trudeau Intl

Discover the top 7 airlines that operate flights from Heathrow to Pierre Elliott Trudeau Intl. 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 858,174 searches. Data last updated 29 March 2026.
AirlineCheapestAverageFlexibilityOn-time
Air TransatCheapest£324Average£498FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
United AirlinesCheapest£330Average£500FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Air CanadaCheapest£363Average£508FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
British AirwaysCheapest£386Average£536FlexibilityNo cancel feeOn-time70%
Search British Airways flights
FinnairCheapest£393Average£763FlexibilityNo cancel feeOn-time76%
Search Finnair flights
LufthansaCheapest£402Average£522FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Virgin AtlanticCheapest£430Average£731FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights

Fly with Cheapflights

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

How does Cheapflights help users find flights from Heathrow to Pierre Elliott Trudeau Intl?

When you search for this flight from Heathrow to Pierre Elliott Trudeau Intl, 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 Heathrow to Pierre Elliott Trudeau Intl?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Heathrow to Pierre Elliott Trudeau Intl.

Can Cheapflights find flights from Heathrow to Pierre Elliott Trudeau Intl with no change fees?

Yes! Cheapflights helps users easily find flights from Heathrow to Pierre Elliott Trudeau Intl with no change fees.

Can Cheapflights notify me if prices for flights from Heathrow to Pierre Elliott Trudeau Intl become cheaper?

Yes, Cheapflights offers price alerts on Heathrow to Pierre Elliott Trudeau Intl 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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