Cheap flights from London Heathrow Airport to Montreal Pierre Elliott Trudeau Intl Airport from £265

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 18/11. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — YUL
14 Dec — 21 Dec1
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 May or September, booked 86 days in advance, depart on a Wednesday or Tuesday and return on a Sunday

Cheap 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 14 November 2025.

Round-trip from

£398

One-way from

£265

Popular in

August

Cheapest in

May

Average price

£479

Good round-trip deal

£505 or less

Good one-way deal

£374 or less
Air Canada
  • Air Canada
  • 25/1-8/2
  • 3 total stops
  • 26h 30m total
  • London to Montreal
18/11
  • 18/11
  • 1 total stop
  • 33h 25m total
  • London to Montreal
Highest demand for flights based on searches. 10% potential increase in price (£46 potential increase over avg. return price).
Cheapest flight prices on average. 2% potential price decrease (£10 potential savings vs. average return price).
Average for round-trip flights in November 2025
Price to beat on a round-trip flight from London Heathrow to Montreal Pierre Elliott Trudeau Intl.
Price to beat on a one-way flight from London Heathrow to Montreal Pierre Elliott Trudeau Intl.

Find 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 14 November 2025.

Sun 16/1113:45LHR - YUL
1 stop30h 25mAir Canada
Sun 30/1108:30YUL - LHR
2 stops19h 50mAir Canada
Deal found 11/11£394
Mon 17/1109:00LHR - YUL
1 stop11h 10mAir Canada
Mon 1/1219:00YUL - LHR
2 stops20h 35mAir Canada
Deal found 12/11£397
Wed 12/1119:25LHR - YUL
1 stop23h 20mAir Canada
Sat 6/1222:30YUL - LHR
2 stops17h 05mAir Canada
Deal found 11/11£400
Thu 27/1109:00LHR - YUL
2 stops15h 53mAir Canada
Tue 2/1222:30YUL - LHR
2 stops17h 05mAir Canada
Deal found 12/11£401
Fri 21/1109:00LHR - YUL
1 stop11h 10mAir Canada
Sun 30/1110:30YUL - LHR
2 stops17h 50mAir Canada
Deal found 13/11£406
Sun 16/1106:50LHR - YUL
1 stop9h 55mAir Canada
Sun 23/1112:10YUL - LHR
2 stops16h 10mAir Canada
Deal found 13/11£408
Wed 19/1113:45LHR - YUL
1 stop30h 25mAir Canada
Wed 26/1120:10YUL - LHR
2 stops19h 25mAir Canada
Deal found 13/11£410
Thu 20/1113:45LHR - YUL
1 stop30h 25mAir Canada
Thu 27/1122:30YUL - LHR
2 stops17h 05mAir Canada
Deal found 13/11£410
Thu 13/1106:00LHR - YUL
1 stop12h 45mAir Canada
Sun 16/1110:30YUL - LHR
2 stops17h 50mAir Canada
Deal found 12/11£411
Tue 2/1209:00LHR - YUL
1 stop11h 10mAir Canada
Mon 8/1222:30YUL - LHR
2 stops17h 05mAir Canada
Deal found 12/11£413

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 14 November 2025.
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

Heathrow

Fly to

Pierre Elliott Trudeau Intl

Route

Depart

Return

Price

LondonMontreal

LHR - YUL

LHRYUL

London Heathrow

Thu 19/3

09:00-15:55

1 stop10h 55m

Montreal Pierre Elliott Trudeau Intl

Mon 23/3

17:55-13:00

1 stop15h 05m

£454

LondonMontreal

LHR - YUL

LHRYUL

London Heathrow

Mon 2/2

09:00-15:10

1 stop11h 10m

Montreal Pierre Elliott Trudeau Intl

Thu 12/2

16:45-11:15

1 stop13h 30m

£454

LondonMontreal

LHR - YUL

LHRYUL

London Heathrow

Thu 4/12

16:20-07:32

2 stops20h 12m

Montreal Pierre Elliott Trudeau Intl

Mon 8/12

15:00-10:50

2 stops14h 50m

£465

LondonMontreal

LHR - YUL

LHRYUL

London Heathrow

Tue 2/12

16:20-07:32

2 stops20h 12m

Montreal Pierre Elliott Trudeau Intl

Tue 9/12

14:13-10:25

2 stops15h 12m

£467

LondonMontreal

LHR - YUL

LHRYUL

London Heathrow

Tue 2/12

16:20-07:32

2 stops20h 12m

Montreal Pierre Elliott Trudeau Intl

Mon 8/12

15:00-10:50

2 stops14h 50m

£467

LondonMontreal

LHR - YUL

LHRYUL

London Heathrow

Thu 27/11

13:25-16:10

Nonstop7h 45m

Montreal Pierre Elliott Trudeau Intl

Tue 2/12

19:30-07:10

Nonstop6h 40m

£476

LondonMontreal

LHR - YUL

LHRYUL

London Heathrow

Fri 28/11

13:25-16:10

Nonstop7h 45m

Montreal Pierre Elliott Trudeau Intl

Mon 1/12

19:10-07:10

Nonstop7h 00m

£476

LondonMontreal

LHR - YUL

LHRYUL

London Heathrow

Thu 19/3

13:25-17:05

Nonstop7h 40m

Montreal Pierre Elliott Trudeau Intl

Mon 23/3

20:10-07:10

Nonstop7h 00m

£481

LondonMontreal

LHR - YUL

LHRYUL

London Heathrow

Mon 16/2

08:40-17:20

1 stop13h 40m

Montreal Pierre Elliott Trudeau Intl

Fri 20/2

16:45-08:45

1 stop11h 00m

£488

LondonMontreal

LHR - YUL

LHRYUL

London Heathrow

Sun 28/12

07:30-06:55

2 stops28h 25m

Montreal Pierre Elliott Trudeau Intl

Tue 6/1

20:00-21:20

2 stops20h 20m

£492

Flights are sorted by cheapest return flights first.

Deals found on 11/11

Showing 1-10 of 21 results
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 7 November 2025.

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 £340). Flying from London Heathrow Airport to Montreal Pierre Elliott Trudeau Intl Airport in December is currently the most expensive (average of £392). 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 14 November 2025.

A simple way to save on the total cost of your ticket is to fly from London Heathrow Airport to Montreal Pierre Elliott Trudeau Intl Airport in the afternoon. If you’re flexible enough to do this you can expect to save up to 13% on your trip compared to booking a flight in the evening.

What is the cheapest day to fly from London Heathrow Airport to Montreal Pierre Elliott Trudeau Intl Airport?

Use this chart to determine the cheapest time to fly return from Heathrow to Pierre Elliott Trudeau Intl. Price data was last updated on 2 November 2025.

Travellers seeking maximum savings on their London Heathrow Airport to Montreal Pierre Elliott Trudeau Intl Airport flight should consider departing on Wednesday evenings 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.

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 14 November 2025.
Read through reviews of airlines operating flights from London Heathrow Airport to Montreal Pierre Elliott Trudeau Intl Airport, such as Finnair, Air France, andAir Canada. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Overall

7.6

Crew

8.1

Comfort

7.4

Entertainment

6.9

Boarding

7.6

Food

6.7

Reviews

1 / 20
4.0
Okay

Anonymous,Sept 2025

WAW - HEL

My flight to Europe was cancelled and rebooked. Bags got lost by FinnAir. Flight back home from Europe was cancelled the very next day after we landed. Zero compensation for these back to back cancellations on the exact same trip. Kayak doesn’t help with flight cancellation before trips says to contact trip protection only for trip protection to say it’s up to kayak. Don’t fly FinnAir.

Overall

7.6

Crew

8.1

Comfort

7.4

Entertainment

6.9

Boarding

7.6

Food

6.7

Reviews

1 / 20
4.0
Okay

Anonymous,Sept 2025

WAW - HEL

My flight to Europe was cancelled and rebooked. Bags got lost by FinnAir. Flight back home from Europe was cancelled the very next day after we landed. Zero compensation for these back to back cancellations on the exact same trip. Kayak doesn’t help with flight cancellation before trips says to contact trip protection only for trip protection to say it’s up to kayak. Don’t fly FinnAir.

Overall

7.6

Crew

8.1

Comfort

7.4

Entertainment

6.9

Boarding

7.6

Food

6.7

Reviews

1 / 20
4.0
Okay

Anonymous,Sept 2025

WAW - HEL

My flight to Europe was cancelled and rebooked. Bags got lost by FinnAir. Flight back home from Europe was cancelled the very next day after we landed. Zero compensation for these back to back cancellations on the exact same trip. Kayak doesn’t help with flight cancellation before trips says to contact trip protection only for trip protection to say it’s up to kayak. Don’t fly FinnAir.

Overall

7.6

Crew

8.1

Comfort

7.4

Entertainment

6.9

Boarding

7.6

Food

6.7

Reviews

1 / 20
4.0
Okay

Anonymous,Sept 2025

WAW - HEL

My flight to Europe was cancelled and rebooked. Bags got lost by FinnAir. Flight back home from Europe was cancelled the very next day after we landed. Zero compensation for these back to back cancellations on the exact same trip. Kayak doesn’t help with flight cancellation before trips says to contact trip protection only for trip protection to say it’s up to kayak. Don’t fly FinnAir.

Overall

7.6

Crew

8.1

Comfort

7.4

Entertainment

6.9

Boarding

7.6

Food

6.7

Reviews

1 / 20
4.0
Okay

Anonymous,Sept 2025

WAW - HEL

My flight to Europe was cancelled and rebooked. Bags got lost by FinnAir. Flight back home from Europe was cancelled the very next day after we landed. Zero compensation for these back to back cancellations on the exact same trip. Kayak doesn’t help with flight cancellation before trips says to contact trip protection only for trip protection to say it’s up to kayak. Don’t fly FinnAir.

Overall

7.6

Crew

8.1

Comfort

7.4

Entertainment

6.9

Boarding

7.6

Food

6.7

Reviews

1 / 20
4.0
Okay

Anonymous,Sept 2025

WAW - HEL

My flight to Europe was cancelled and rebooked. Bags got lost by FinnAir. Flight back home from Europe was cancelled the very next day after we landed. Zero compensation for these back to back cancellations on the exact same trip. Kayak doesn’t help with flight cancellation before trips says to contact trip protection only for trip protection to say it’s up to kayak. Don’t fly FinnAir.

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 10h 55m. 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 France. Our recent data shows that you can find tickets from as low as £98 on this airline. Additional options worth looking into are Virgin Atlantic and Air Transat, starting at £265 and £327 round-trip. Air France is priced at 80% 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 £280 on Virgin Atlantic. Other airlines that offer cheap prices include Finnair from £297 and Delta from £297 one-way.

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

    Consider Egyptair (93%), Thai Airways (91%) or MEA (91%) 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 £222. While the most popular route (London Heathrow - Montreal Pierre Elliott Trudeau Intl) can be booked for £378 on average, our data indicates £1,138 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 £340). Flying from London Heathrow Airport to Montreal Pierre Elliott Trudeau Intl Airport in December is currently the most expensive (average of £392). 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
Dorval

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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.

Top 9 airlines flying from Heathrow to Pierre Elliott Trudeau Intl

Discover the top 9 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 14 November 2025.
AirlineCheapestAverageFlexibilityOn-time
Air FranceCheapest£98Average£459FlexibilityNo cancel feeOn-time77%
Search Air France flights
Virgin AtlanticCheapest£265Average£698FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
Air TransatCheapest£327Average£498FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
United AirlinesCheapest£333Average£504FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
TAP AIR PORTUGALCheapest£343Average£552FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
Air CanadaCheapest£374Average£502FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
LufthansaCheapest£381Average£524FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
British AirwaysCheapest£384Average£534FlexibilityNo cancel feeOn-time70%
Search British Airways flights
FinnairCheapest£406Average£596FlexibilityNo cancel feeOn-time76%
Search Finnair flights

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

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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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