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Pierre Elliott Trudeau Intl

$393+ Cheap flights from Heathrow (LHR) to Pierre Elliott Trudeau Intl (YUL)

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 9/14. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — YUL
Jul 20 — Jul 271
Mon 7/20
Mon 7/27
1 adult, Economy
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Cheapflights Tip: The best prices from London Heathrow to Montreal Pierre Elliott Trudeau Intl are usually found in September or January, booked 64 days in advance, depart on a Thursday or Wednesday and return on a Sunday

Cheap flight deals from Heathrow to Pierre Elliott Trudeau Intl

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 June 20, 2026.

This United Airlines deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/66:50 am
LHR
-
YUL
2 stops14h 20m
United Airlines
Thu 7/168:30 am
YUL
-
LHR
2 stops16h 25m
United Airlines
Deal found 6/20$595
This United Airlines deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/306:50 am
LHR
-
YUL
2 stops14h 20m
United Airlines
Wed 7/292:20 pm
YUL
-
LHR
2 stops14h 00m
United Airlines
Deal found 6/19$596
This United Airlines deal was found by Cheapflights users on 6/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/67:30 am
LHR
-
YUL
2 stops19h 36m
United Airlines
Mon 7/132:20 pm
YUL
-
LHR
1 stop11h 35m
United Airlines
Deal found 6/18$601
This United Airlines deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/87:30 am
LHR
-
YUL
2 stops19h 36m
United Airlines
Mon 7/133:25 pm
YUL
-
LHR
1 stop11h 55m
United Airlines
Deal found 6/16$602
This United Airlines deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/237:30 am
LHR
-
YUL
2 stops14h 54m
United Airlines
Mon 7/206:00 am
YUL
-
LHR
1 stop18h 55m
United Airlines
Deal found 6/16$603
This United Airlines deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/246:50 am
LHR
-
YUL
2 stops20h 16m
United Airlines
Thu 7/236:00 am
YUL
-
LHR
1 stop9h 40m
United Airlines
Deal found 6/16$604
This Delta deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/66:15 am
LHR
-
YUL
1 stop13h 50m
Delta
Sat 9/196:50 pm
YUL
-
LHR
1 stop10h 55m
Delta
Deal found 6/20$606
This United Airlines deal was found by Cheapflights users on 6/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/87:30 am
LHR
-
YUL
2 stops14h 54m
United Airlines
Mon 7/203:25 pm
YUL
-
LHR
2 stops13h 50m
United Airlines
Deal found 6/18$608
This United Airlines deal was found by Cheapflights users on 6/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/66:50 am
LHR
-
YUL
2 stops14h 20m
United Airlines
Mon 8/33:25 pm
YUL
-
LHR
2 stops13h 50m
United Airlines
Deal found 6/18$609
This Air Canada deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/277:45 am
LHR
-
YUL
1 stop13h 25m
Air Canada
Sat 7/116:40 pm
YUL
-
LHR
Nonstop6h 50m
Air Canada
Deal found 6/17$610
This United Airlines deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/257:30 am
LHR
-
YUL
2 stops14h 54m
United Airlines
Mon 8/313:25 pm
YUL
-
LHR
2 stops14h 15m
United Airlines
Deal found 6/20$611
This United Airlines deal was found by Cheapflights users on 6/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/811:05 am
LHR
-
YUL
2 stops56h 35m
United Airlines
Sat 10/173:25 pm
YUL
-
LHR
2 stops14h 15m
United Airlines
Deal found 6/18$615

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 June 20, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$595
(United Airlines)

One-way from

$393
(Kiwi.com)

Popular in

July

Cheapest in

September

Average price

$720

Good round-trip deal

$683 or less

Good one-way deal

$556 or less
Provider with most accurate pricing for London Heathrow-Montreal Pierre Elliott Trudeau Intl flight deals.
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Provider most trusted by Cheapflights users for London Heathrow-Montreal Pierre Elliott Trudeau Intl flights.
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From London Heathrow to Montreal Pierre Elliott Trudeau Intl
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One-way flight from London Heathrow to Montreal Pierre Elliott Trudeau Intl
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Highest demand for flights based on searches. 11% potential increase in price ($92 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($17 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2026
Search Deals
Price to beat on a round-trip flight from London Heathrow to Montreal Pierre Elliott Trudeau Intl.
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Price to beat on a one-way flight from London Heathrow to Montreal Pierre Elliott Trudeau Intl.
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Cheapflights Fare Finder

 
Customize 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 2,558,603 searches. Data last updated June 20, 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 round-trip

LondonMontreal

LHR - YUL

LHRYUL

London Heathrow

Wed 7/8

7:30 am-5:24 pm

2 stops14h 54m

Montreal Pierre Elliott Trudeau Intl

Mon 7/13

3:25 pm-10:15 am

2 stops13h 50m

$609

LondonMontreal

LHR - YUL

LHRYUL

London Heathrow

Thu 7/9

6:50 am-4:10 pm

2 stops14h 20m

Montreal Pierre Elliott Trudeau Intl

Fri 7/17

1:15 pm-7:55 am

2 stops13h 40m

$751
Quickest round-trip

LondonMontreal

LHR - YUL

LHRYUL

London Heathrow

Mon 7/6

6:05 pm-8:15 pm

Nonstop7h 10m

Montreal Pierre Elliott Trudeau Intl

Mon 7/20

10:00 pm-9:40 am

Nonstop6h 40m

$901

LondonMontreal

LHR - YUL

LHRYUL

London Heathrow

Thu 9/3

1:45 pm-12:32 am

2 stops15h 47m

Montreal Pierre Elliott Trudeau Intl

Fri 9/18

1:10 pm-5:45 pm

2 stops23h 35m

$1,067

LondonMontreal

LHR - YUL

LHRYUL

London Heathrow

Mon 7/27

6:40 am-12:25 am

2 stops22h 45m

Montreal Pierre Elliott Trudeau Intl

Mon 8/10

6:45 am-9:20 am

2 stops21h 35m

$1,158

LondonMontreal

LHR - YUL

LHRYUL

London Heathrow

Mon 7/27

6:45 pm-8:12 pm

2 stops30h 27m

Montreal Pierre Elliott Trudeau Intl

Mon 8/10

10:45 pm-10:55 pm

1 stop19h 10m

$1,173

LondonMontreal

LHR - YUL

LHRYUL

London Heathrow

Sat 7/11

6:30 am-4:55 pm

1 stop15h 25m

Montreal Pierre Elliott Trudeau Intl

Thu 7/23

6:00 am-9:00 am

2 stops22h 00m

$1,210

LondonMontreal

LHR - YUL

LHRYUL

London Heathrow

Thu 7/16

7:05 am-12:25 am

3 stops22h 20m

Montreal Pierre Elliott Trudeau Intl

Fri 7/24

7:00 am-1:35 pm

2 stops25h 35m

$1,225

LondonMontreal

LHR - YUL

LHRYUL

London Heathrow

Mon 8/3

7:50 pm-8:26 pm

2 stops29h 36m

Montreal Pierre Elliott Trudeau Intl

Mon 8/24

10:45 pm-10:55 pm

1 stop19h 10m

$1,425
Cheapest one-way

LondonMontreal

LHR - YUL

LHRYUL

London Heathrow

Tue 9/15

8:50 pm-5:20 pm

1 stop25h 30m

$406

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/19

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

Compare providers for flights from Heathrow to Pierre Elliott Trudeau Intl

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Heathrow to Pierre Elliott Trudeau Intl in June.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
Thrive TravelPrice Accuracy3 starsTrust Score*2 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy2 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on London Heathrow Airport-Montreal Pierre Elliott Trudeau Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on London Heathrow Airport-Montreal Pierre Elliott Trudeau Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from London Heathrow Airport-Montreal Pierre Elliott Trudeau Intl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on London Heathrow Airport-Montreal Pierre Elliott Trudeau Intl Airport flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for London Heathrow Airport-Montreal Pierre Elliott Trudeau Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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 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 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?

The best time to book flights from London Heathrow Airport to Montreal Pierre Elliott Trudeau Intl Airport is 63 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, September is the cheapest month in which you can book a flight from London Heathrow Airport to Montreal Pierre Elliott Trudeau Intl Airport (average of $620). Flying from London Heathrow Airport to Montreal Pierre Elliott Trudeau Intl Airport in July is currently the most expensive (average of $892). 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 June 20, 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 to fly round-trip from London Heathrow Airport to Montreal Pierre Elliott Trudeau Intl Airport?

The best insider tips for London Heathrow Airport to Montreal Pierre Elliott Trudeau Intl Airport flights

AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your London Heathrow Airport to Montreal Pierre Elliott Trudeau Intl Airport trip
Our travel experts
John Walton

John Walton

Expert on YUL

Independent aviation journalist John Walton took his first flight at eight weeks old and hasn’t stopped travelling since. A world-renowned expert in airlines and the passenger experience, he writes in depth on aviation, is a resident expert on travel in Japan and France, and offers a uniquely queer perspective on travelling the world.

Read more
Ramsey Qubein

Ramsey Qubein

Expert on LHR

An avid traveler and aviation expert who has visited 173 countries, all 50 states and seven continents, Ramsey Qubein flies nearly 400,000 miles a year. As a North Carolina-based freelance journalist for publications including Conde Nast Traveler, Forbes, USA Today and Bloomberg among others, he explores the latest trends in aviation, hospitality, cruises and business.

Read more

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 June 20, 2026.
Read reviews from past customers who have flown Air Canada and Lufthansa from London Heathrow Airport to Montreal Pierre Elliott Trudeau Intl Airport. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Air Canada
7.1
Good
11,226 reviews

Overall

7.1

Crew

7.8

Entertainment

6.8

Boarding

7.3

Comfort

7.1

Food

6.3

Reviews

1 / 20
2.0
Mediocre

Lori,May 2026

YYZ - YFC

Didn't land, sent back to Toronto. No food, no accommodation, no help at all!!
Air Canada
7.1
Good
11,226 reviews
Air Canada
7.1
Good
11,226 reviews

Overall

7.1

Crew

7.8

Entertainment

6.8

Boarding

7.3

Comfort

7.1

Food

6.3

Reviews

1 / 20
2.0
Mediocre

Lori,May 2026

YYZ - YFC

Didn't land, sent back to Toronto. No food, no accommodation, no help at all!!
Lufthansa
6.8
Okay
8,082 reviews
Air Canada
7.1
Good
11,226 reviews

Overall

7.1

Crew

7.8

Entertainment

6.8

Boarding

7.3

Comfort

7.1

Food

6.3

Reviews

1 / 20
2.0
Mediocre

Lori,May 2026

YYZ - YFC

Didn't land, sent back to Toronto. No food, no accommodation, no help at all!!

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?

    SWISS, TAP AIR PORTUGAL, and Delta can get you from London Heathrow Airport to Montreal Pierre Elliott Trudeau Intl Airport in just under 14h. Your travel time can differ by up to 2h 55m. The distance between London Heathrow Airport and Montreal Pierre Elliott Trudeau Intl Airport is about 3239 mi. This flight may include one or multiple stops.

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

    Cheapflights users have booked flights from London Heathrow Airport to Montreal Pierre Elliott Trudeau Intl Airport round-trip from $495. Another airline that can offer you cheap pricing is Air Canada. Lufthansa is 30% cheaper than the average price of flights available within the next 90 days to this destination.

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

    Before booking your flight to Montreal Pierre Elliott Trudeau Intl Airport from London Heathrow Airport, check out the most reliable airlines to get you to your destination on time: Air Canada (97%), United Airlines (97%), Lufthansa( 97%).

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

    While on average a flight from London Heathrow Airport to Montreal Pierre Elliott Trudeau Intl Airport is generally $799, our data shows the cheapest flight currently is $449. When looking at the most popular route, (London Heathrow - Montreal Pierre Elliott Trudeau Intl), you can expect to pay $410 for that flight.

  • 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 vacation 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, September is the cheapest month in which you can book a flight from London Heathrow Airport to Montreal Pierre Elliott Trudeau Intl Airport (average of $620). Flying from London Heathrow Airport to Montreal Pierre Elliott Trudeau Intl Airport in July is currently the most expensive (average of $892). 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

Traveling 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
Longueuil
Laval
Dorval

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Top 2 airlines flying from Heathrow to Pierre Elliott Trudeau Intl

Discover the top 2 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 2,558,603 searches. Data last updated June 20, 2026.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest$495Average$683FlexibilityNo cancel feeOn-time76%
Air CanadaCheapest$513Average$705FlexibilityNo cancel feeOn-time67%

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