HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Pierre Elliott Trudeau Intl

$389+ 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 10/16. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — YUL
Aug 4 — Aug 111
Mon 8/4
Mon 8/11
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Heathrow to Pierre Elliott Trudeau Intl with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 Tuesday or Wednesday and return on a Saturday

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 July 30, 2025.

Round-trip from

$485
(Gotogate)

One-way from

$389
(Kiwi.com)

Popular in

August

Cheapest in

September

Average price

$847

Good round-trip deal

$673 or less

Good one-way deal

$873 or less
From London Heathrow to Montreal Pierre Elliott Trudeau Intl
Search Deals
One-way flight from London Heathrow to Montreal Pierre Elliott Trudeau Intl
Search Deals
Highest demand for flights based on searches. 13% potential increase in price ($105 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($21 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2025
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

Find 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 July 30, 2025.

This Gotogate deal was found by Cheapflights users on 7/29. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/121:45 pmLHR - YUL
1 stop12h 15mMultiple Airlines
Fri 9/194:40 pmYUL - LHR
1 stop10h 15mMultiple Airlines
Deal found 7/29$485
This Mytrip deal was found by Cheapflights users on 7/29. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/109:30 amLHR - YUL
1 stop11h 30mLufthansa
Wed 9/176:05 pmYUL - LHR
1 stop10h 35mLufthansa
Deal found 7/29$487
This SWISS deal was found by Cheapflights users on 7/29. 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 SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/156:00 amLHR - YUL
1 stop14h 00mSWISS
Mon 9/224:40 pmYUL - LHR
1 stop10h 15mSWISS
Deal found 7/29$510
This Air Canada deal was found by Cheapflights users on 7/30. 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.
Sun 9/286:50 amLHR - YUL
1 stop9h 45mAir Canada
Sun 10/56:55 pmYUL - LHR
Nonstop6h 35mAir Canada
Deal found 7/30$515
This Austrian Airlines deal was found by Cheapflights users on 7/28. 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 Austrian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/116:00 amLHR - YUL
1 stop12h 50mAustrian Airlines
Thu 9/186:35 pmYUL - LHR
1 stop32h 45mAustrian Airlines
Deal found 7/28$522
This Cheapflightsfares deal was found by Cheapflights users on 7/30. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/286:05 pmLHR - YUL
Nonstop7h 10mBritish Airways
Sun 10/510:00 pmYUL - LHR
Nonstop6h 40mBritish Airways
Deal found 7/30$535
This United Airlines deal was found by Cheapflights users on 7/28. 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.
Sat 9/136:30 amLHR - YUL
2 stops15h 30mUnited Airlines
Sun 9/143:41 pmYUL - LHR
2 stops13h 59mUnited Airlines
Deal found 7/28$552

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 July 30, 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

Fri 9/12

1:45 pm-9:00 pm

1 stop12h 15m

Montreal Pierre Elliott Trudeau Intl

Fri 9/19

4:40 pm-7:55 am

1 stop10h 15m

$485

LondonMontreal

LHR - YUL

LHRYUL

London Heathrow

Wed 9/10

9:30 am-4:00 pm

1 stop11h 30m

Montreal Pierre Elliott Trudeau Intl

Wed 9/17

6:05 pm-9:40 am

1 stop10h 35m

$487

LondonMontreal

LHR - YUL

LHRYUL

London Heathrow

Mon 9/15

6:00 am-3:00 pm

1 stop14h 00m

Montreal Pierre Elliott Trudeau Intl

Mon 9/22

4:40 pm-7:55 am

1 stop10h 15m

$510

LondonMontreal

LHR - YUL

LHRYUL

London Heathrow

Sun 9/28

6:50 am-11:35 am

1 stop9h 45m

Montreal Pierre Elliott Trudeau Intl

Sun 10/5

6:55 pm-6:30 am

Nonstop6h 35m

$515

LondonMontreal

LHR - YUL

LHRYUL

London Heathrow

Thu 9/11

6:00 am-1:50 pm

1 stop12h 50m

Montreal Pierre Elliott Trudeau Intl

Thu 9/18

6:35 pm-8:20 am

1 stop32h 45m

$522

LondonMontreal

LHR - YUL

LHRYUL

London Heathrow

Fri 9/26

6:05 pm-8:15 pm

Nonstop7h 10m

Montreal Pierre Elliott Trudeau Intl

Sat 10/4

10:05 pm-9:45 am

Nonstop6h 40m

$533

LondonMontreal

LHR - YUL

LHRYUL

London Heathrow

Sat 9/13

6:30 am-5:00 pm

2 stops15h 30m

Montreal Pierre Elliott Trudeau Intl

Sun 9/14

3:41 pm-9:20 am

1 stop12h 39m

$552

LondonMontreal

LHR - YUL

LHRYUL

London Heathrow

Thu 10/16

5:50 pm-11:15 am

1 stop22h 25m

$389

LondonMontreal

LHR - YUL

LHRYUL

London Heathrow

Thu 10/9

1:45 pm-9:10 pm

1 stop12h 25m

$437

LondonMontreal

LHR - YUL

LHRYUL

London Heathrow

Tue 8/26

6:50 am-11:30 am

1 stop9h 40m

$557

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/30

Showing 1-10 of 13 results
1
2

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

Snippets provided in this section are AI-generated based on a summarization of Cheapflights-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
Cheapflights partnered with top experts to bring you the best recommendations for your London Heathrow Airport to Montreal Pierre Elliott Trudeau Intl Airport trip
Airports
LHR

Heathrow's strict security means long lines. Ensure liquids are in one small bag to avoid delays.

Read more about LHRby Ramsey Qubein
YUL

Use the ArriveCAN app to fill out your arrival declaration card and avoid lines at passport control in Montreal.

Read more about YULby John Walton
Our travel experts
John Walton

John Walton

Expert on YUL

John Walton

John Walton

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

Ramsey Qubein

Ramsey Qubein

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

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?

Use this chart to determine the optimal time to book a round-trip flight from Heathrow to Pierre Elliott Trudeau Intl. Price data was last updated on July 25, 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, January is the cheapest month in which you can book a flight from London Heathrow Airport to Montreal Pierre Elliott Trudeau Intl Airport (average of $270). 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 July 30, 2025.

When flying from London Heathrow Airport to Montreal Pierre Elliott Trudeau Intl Airport, the time of day you fly usually plays a role in the price. Save by searching for a flight in the morning, which can drop the price by up to 8% versus a flight at noon.

Weekly flight availability from London Heathrow Airport to Montreal Pierre Elliott Trudeau Intl Airport

Explore weekly flight availability from Heathrow to Pierre Elliott Trudeau Intl. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated July 30, 2025.

The most flights from LHR to YUL are scheduled on a Tuesday (17 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (10 on average).

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 July 30, 2025.
Read reviews from past customers who have flown Austrian Airlines, Azores Airlines, and SWISS 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.
Austrian Airlines
7.6
Good
823 reviews

Crew

8.1

Boarding

7.6

Comfort

7.3

Overall

7.6

Entertainment

6.8

Food

6.8

Reviews

1 / 20
10.0
Excellent

Dominik,Jun 2025

VIE - VNO

Good service and update all information. I feel like i wanna use it again next time
Austrian Airlines
7.6
Good
823 reviews
Austrian Airlines
7.6
Good
823 reviews

Crew

8.1

Boarding

7.6

Comfort

7.3

Overall

7.6

Entertainment

6.8

Food

6.8

Reviews

1 / 20
10.0
Excellent

Dominik,Jun 2025

VIE - VNO

Good service and update all information. I feel like i wanna use it again next time
Azores Airlines
7.5
Good
67 reviews
Austrian Airlines
7.6
Good
823 reviews

Crew

8.1

Boarding

7.6

Comfort

7.3

Overall

7.6

Entertainment

6.8

Food

6.8

Reviews

1 / 20
10.0
Excellent

Dominik,Jun 2025

VIE - VNO

Good service and update all information. I feel like i wanna use it again next time
SWISS
7.5
Good
1,686 reviews
Austrian Airlines
7.6
Good
823 reviews

Crew

8.1

Boarding

7.6

Comfort

7.3

Overall

7.6

Entertainment

6.8

Food

6.8

Reviews

1 / 20
10.0
Excellent

Dominik,Jun 2025

VIE - VNO

Good service and update all information. I feel like i wanna use it again next time
United Airlines
7.4
Good
8,896 reviews
Austrian Airlines
7.6
Good
823 reviews

Crew

8.1

Boarding

7.6

Comfort

7.3

Overall

7.6

Entertainment

6.8

Food

6.8

Reviews

1 / 20
10.0
Excellent

Dominik,Jun 2025

VIE - VNO

Good service and update all information. I feel like i wanna use it again next time
Brussels Airlines
7.3
Good
350 reviews
Austrian Airlines
7.6
Good
823 reviews

Crew

8.1

Boarding

7.6

Comfort

7.3

Overall

7.6

Entertainment

6.8

Food

6.8

Reviews

1 / 20
10.0
Excellent

Dominik,Jun 2025

VIE - VNO

Good service and update all information. I feel like i wanna use it again next time

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.

  • 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 $487. Other airlines that can offer you cheap pricing are SWISS, from $508, and Air Canada, from $515. Lufthansa is 25% cheaper than the average price of flights available within the next 90 days to this destination.

  • 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 $437 on TAP AIR PORTUGAL. Other airlines that offer cheap prices include Aer Lingus from $492 and Brussels Airlines from $557 one-way.

  • 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: Austrian Airlines (93%), United Airlines (93%), Lufthansa( 93%).

  • 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 $1,010, our data shows the cheapest flight currently is $525. When looking at the most popular route, (London Heathrow - Montreal Pierre Elliott Trudeau Intl), you can expect to pay $535 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, January is the cheapest month in which you can book a flight from London Heathrow Airport to Montreal Pierre Elliott Trudeau Intl Airport (average of $270). 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

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
Brossard
Sherbrooke
Dorval

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 3 airlines flying from Heathrow to Pierre Elliott Trudeau Intl

Discover the top 3 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 July 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest$521Average$741FlexibilityNo cancel feeOn-time76%
Air CanadaCheapest$534Average$657FlexibilityNo cancel feeOn-time67%
British AirwaysCheapest$607Average$847FlexibilityNo cancel feeOn-time70%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.