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$302+ Cheap flights from Pierre Elliott Trudeau Intl (YUL) to Heathrow (LHR)

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 6/5. Fares are subject to change and may not be available on all flights or dates of travel.
YUL — LHR
Nis 11 — Nis 181
Cmt 4/11
Cmt 4/18
1 adult, Economy
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Cheapflights Tip: The best prices from Montreal Pierre Elliott Trudeau Intl to London Heathrow are usually found in November or October, booked 14 days in advance, depart on a Saturday or Sunday and return on a Tuesday

Cheap flight deals from Pierre Elliott Trudeau Intl to Heathrow

Cheapest flights from Pierre Elliott Trudeau Intl to Heathrow
Explore the most affordable flight options available from Pierre Elliott Trudeau Intl to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on Mart 12, 2026.

This FlightHub deal was found by Cheapflights users on 3/10. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Paz 6/1410:45 pm
YUL
-
LHR
1 stop14h 00m
TAP AIR PORTUGAL
Çar 6/2411:20 am
LHR
-
YUL
1 stop14h 25m
TAP AIR PORTUGAL
Deal found 3/10$543
This Kiwi.com deal was found by Cheapflights users on 3/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Cum 6/1210:45 pm
YUL
-
LHR
1 stop14h 00m
TAP AIR PORTUGAL
Pzt 6/2211:20 am
LHR
-
YUL
1 stop14h 50m
TAP AIR PORTUGAL
Deal found 3/10$548
This FlightHub deal was found by Cheapflights users on 3/11. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Paz 5/3110:45 pm
YUL
-
LHR
1 stop18h 15m
TAP AIR PORTUGAL
Paz 6/77:50 pm
LHR
-
YUL
1 stop30h 20m
TAP AIR PORTUGAL
Deal found 3/11$549
This FlightHub deal was found by Cheapflights users on 3/10. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Pzt 6/1510:45 pm
YUL
-
LHR
1 stop14h 00m
TAP AIR PORTUGAL
Sal 6/237:50 pm
LHR
-
YUL
1 stop29h 55m
TAP AIR PORTUGAL
Deal found 3/10$550
This oojo deal was found by Cheapflights users on 3/10. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Paz 5/2410:45 pm
YUL
-
LHR
1 stop19h 10m
TAP AIR PORTUGAL
Pzt 6/16:00 am
LHR
-
YUL
1 stop20h 10m
TAP AIR PORTUGAL
Deal found 3/10$551
This TAP AIR PORTUGAL deal was found by Cheapflights users on 3/9. 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 TAP AIR PORTUGAL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Çar 5/2010:45 pm
YUL
-
LHR
1 stop14h 00m
TAP AIR PORTUGAL
Paz 5/317:50 pm
LHR
-
YUL
1 stop30h 20m
TAP AIR PORTUGAL
Deal found 3/9$587
This oojo deal was found by Cheapflights users on 3/8. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Pzt 6/1510:45 pm
YUL
-
LHR
1 stop14h 00m
TAP AIR PORTUGAL
Cmt 6/276:45 pm
LHR
-
YUL
1 stop31h 25m
TAP AIR PORTUGAL
Deal found 3/8$597
This oojo deal was found by Cheapflights users on 3/11. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Cum 6/1210:45 pm
YUL
-
LHR
1 stop14h 00m
TAP AIR PORTUGAL
Paz 6/144:35 pm
LHR
-
YUL
2 stops32h 42m
TAP AIR PORTUGAL
Deal found 3/11$609
This Kiwi.com deal was found by Cheapflights users on 3/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Cum 6/1210:45 pm
YUL
-
LHR
1 stop14h 00m
TAP AIR PORTUGAL
Cum 6/2612:00 pm
LHR
-
YUL
1 stop14h 10m
TAP AIR PORTUGAL
Deal found 3/10$619

Find flight deals from Pierre Elliott Trudeau Intl to Heathrow

Discover tips and strategies to find the most affordable flight options for your journey from Pierre Elliott Trudeau Intl (YUL) to Heathrow (LHR). 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 Mart 12, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$543
(FlightHub)

One-way from

$302
(Super.com)

Popular in

December

Cheapest in

November

Average price

$739

Good round-trip deal

$769 or less

Good one-way deal

$665 or less
Provider with most accurate pricing for Montreal Pierre Elliott Trudeau Intl-London Heathrow flight deals.
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Provider most trusted by Cheapflights users for Montreal Pierre Elliott Trudeau Intl-London Heathrow flights.
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From Montreal Pierre Elliott Trudeau Intl to London Heathrow
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One-way flight from Montreal Pierre Elliott Trudeau Intl to London Heathrow
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Highest demand for flights based on searches. 1% potential increase in price ($13 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 March 2026
Search Deals
Price to beat on a round-trip flight from Montreal Pierre Elliott Trudeau Intl to London Heathrow.
Search Deals
Price to beat on a one-way flight from Montreal Pierre Elliott Trudeau Intl to London Heathrow.
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Pierre Elliott Trudeau Intl to Heathrow 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 Mart 12, 2026.
Use the filters below to find and compare flights from Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Paz 9/6

8:30 pm-11:50 am

1 stop10h 20m

London Heathrow

Paz 9/27

9:30 am-12:00 pm

Nonstop7h 30m

$782

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Paz 4/12

10:45 pm-6:50 pm

1 stop15h 05m

London Heathrow

Sal 4/14

6:00 am-8:09 pm

2 stops19h 09m

$796

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Çar 5/6

3:25 pm-10:40 am

2 stops14h 15m

London Heathrow

Sal 5/12

9:30 am-6:12 pm

2 stops13h 42m

$817

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Per 4/16

11:45 pm-9:10 am

1 stop28h 25m

London Heathrow

Per 4/30

8:50 pm-5:20 pm

1 stop25h 30m

$865

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Cum 8/28

1:50 pm-7:15 am

2 stops12h 25m

London Heathrow

Sal 9/15

9:30 am-7:45 pm

2 stops15h 15m

$865
Quickest round-trip

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Sal 3/31

10:00 pm-9:40 am

Nonstop6h 40m

London Heathrow

Çar 4/8

6:05 pm-8:15 pm

Nonstop7h 10m

$875

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Çar 5/6

3:25 pm-10:40 am

2 stops14h 15m

London Heathrow

Pzt 5/11

6:50 am-5:25 pm

2 stops15h 35m

$878

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Pzt 9/7

6:00 am-9:35 pm

1 stop10h 35m

London Heathrow

Sal 9/29

9:30 am-4:10 pm

1 stop11h 40m

$880

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Cum 9/4

8:30 pm-11:50 am

1 stop10h 20m

London Heathrow

Paz 9/27

12:40 pm-6:18 pm

1 stop10h 38m

$882

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Pzt 4/20

10:10 pm-10:00 am

Nonstop6h 50m

London Heathrow

Paz 4/26

9:30 am-12:05 pm

Nonstop7h 35m

$885

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/11

Showing 1-10 of 23 resultsSorted by cheapest first
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Compare providers for flights from Pierre Elliott Trudeau Intl to Heathrow

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 Pierre Elliott Trudeau Intl to Heathrow in March.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*2 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
MytripPrice Accuracy3 starsTrust Score*3 stars
Trip.comPrice Accuracy1 starTrust Score*3 stars
Justfly.comPrice Accuracy3 starsTrust Score*3 stars
GurufarePrice Accuracy3 starsTrust Score*3 stars
OvagoPrice Accuracy2 starsTrust Score*3 stars
CheapTicketsDealPrice Accuracy3 starsTrust Score*3 stars
Kiwi.comPrice Accuracy3 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 Montreal Pierre Elliott Trudeau Intl Airport-London Heathrow Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Montreal Pierre Elliott Trudeau Intl Airport-London Heathrow Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Montreal Pierre Elliott Trudeau Intl Airport-London Heathrow Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Montreal Pierre Elliott Trudeau Intl Airport-London Heathrow 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 Montreal Pierre Elliott Trudeau Intl Airport-London Heathrow 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 Pierre Elliott Trudeau Intl to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from Pierre Elliott Trudeau Intl 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 Pierre Elliott Trudeau Intl Airport to London Heathrow Airport

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

Use this chart to determine the optimal time to book a round-trip flight from Pierre Elliott Trudeau Intl to Heathrow. Price data was last updated on March 6, 2026.

Booking 14 days in advance of your planned departure date is, on average, the best time to get cheap flights from Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow Airport. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, November is the cheapest month in which you can book a flight from Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow Airport (average of $447). Flying from Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow Airport in July is currently the most expensive (average of $683). 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 YUL to LHR?

Find hourly flight availability from Pierre Elliott Trudeau Intl to Heathrow. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated Mart 12, 2026.

When flying from Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

The best insider tips for Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow 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 Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow Airport trip
Our travel experts
Jessica Macdonald

Jessica Macdonald

Expert on Air Canada

Currently based in Scotland after living in South Africa and the United States, Jessica has been writing travel and aviation content for more than 10 years. She regularly contributes to Travel + Leisure and TripSavvy, and has had work published by Condé Nast Traveller and The Independent. She has traveled to more than 50 countries across six continents.

Read more
Gabriel Leigh

Gabriel Leigh

Expert on British Airways

Gabriel is a writer and video creator. As senior content producer for Flightradar24 and Monocle’s transport correspondent, he keeps a close eye on aviation in particular. He has also written travel articles for the likes of The New York Times. Born in New York but raised around the world, he now lives in Sweden. He’s been to 75 countries, flying 2.3 million miles on 113 airlines and through 234 airports in the process.

Read more
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 Heathrow

Get insights into the airlines that provide service to Heathrow. 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 Heathrow. Reviews last updated Mart 12, 2026.
Read reviews from past customers who have flown American Airlines,Air Canada, andLufthansa from Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow 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.
American Airlines
7.1
Good
11,432 reviews

Crew

7.9

Food

6.4

Comfort

7.2

Overall

7.1

Boarding

7.5

Entertainment

6.9

Reviews

1 / 20
4.0
Okay

Cameron,Nov 2025

PDX - LHR

The plane was very old...had no WiFi available. The crew were not friendly nor helpful.
American Airlines
7.1
Good
11,432 reviews
American Airlines
7.1
Good
11,432 reviews

Crew

7.9

Food

6.4

Comfort

7.2

Overall

7.1

Boarding

7.5

Entertainment

6.9

Reviews

1 / 20
4.0
Okay

Cameron,Nov 2025

PDX - LHR

The plane was very old...had no WiFi available. The crew were not friendly nor helpful.
Air Canada
7.1
Good
10,800 reviews
American Airlines
7.1
Good
11,432 reviews

Crew

7.9

Food

6.4

Comfort

7.2

Overall

7.1

Boarding

7.5

Entertainment

6.9

Reviews

1 / 20
4.0
Okay

Cameron,Nov 2025

PDX - LHR

The plane was very old...had no WiFi available. The crew were not friendly nor helpful.
Lufthansa
6.8
Okay
7,844 reviews
American Airlines
7.1
Good
11,432 reviews

Crew

7.9

Food

6.4

Comfort

7.2

Overall

7.1

Boarding

7.5

Entertainment

6.9

Reviews

1 / 20
4.0
Okay

Cameron,Nov 2025

PDX - LHR

The plane was very old...had no WiFi available. The crew were not friendly nor helpful.
British Airways
6.7
Okay
7,784 reviews
American Airlines
7.1
Good
11,432 reviews

Crew

7.9

Food

6.4

Comfort

7.2

Overall

7.1

Boarding

7.5

Entertainment

6.9

Reviews

1 / 20
4.0
Okay

Cameron,Nov 2025

PDX - LHR

The plane was very old...had no WiFi available. The crew were not friendly nor helpful.

Related info for your journey

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

    Departing from Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow Airport will take you 14h. Montreal Pierre Elliott Trudeau Intl Airport and London Heathrow Airport are separated by a distance of 3239 mi.

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

    Flying on Air Canada is currently your cheapest option to London Heathrow Airport, with prices starting at $543. Additional round-trip tickets that might be worth considering are offered by Lufthansa and American Airlines, with the lowest prices starting at $549 and $582, respectively. Air Canada is 25% cheaper than the average price of flights available within the next 90 days to this destination.

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

    Before booking your flight to London Heathrow Airport from Montreal Pierre Elliott Trudeau Intl Airport, check out the most reliable airlines to get you to your destination on time: Aegean Airlines (77%), Egyptair (65%), Thai Airways( 65%).

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

    While on average a flight from Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow Airport is generally $1,711, our data shows the cheapest flight currently is $600. When looking at the most popular route, (Montreal Pierre Elliott Trudeau Intl - London Heathrow), you can expect to pay $519 for that flight.

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

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

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

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

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

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

    Currently, November is the cheapest month in which you can book a flight from Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow Airport (average of $447). Flying from Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow Airport in July is currently the most expensive (average of $683). 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 London Heathrow Airport?

Book flights to London Heathrow Airport if you plan to visit one of these locations
Ilford
Hounslow
Croydon
Gatwick
Southend-on-Sea
Harrow
Eastleigh
Dartford
Dover
Winchester
Orpington
Watford
Northampton
Borehamwood
Broadway
Aylesbury
Chipping Norton
Hayes
Kingston upon Thames
Eastbourne

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Top 4 airlines flying from Pierre Elliott Trudeau Intl to Heathrow

Discover the top 4 airlines that operate flights from Pierre Elliott Trudeau Intl to Heathrow. 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 Mart 12, 2026.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$543Average$722FlexibilityNo cancel feeOn-time67%
LufthansaCheapest$549Average$765FlexibilityNo cancel feeOn-time76%
American AirlinesCheapest$582Average$790FlexibilityNo cancel feeOn-time71%
British AirwaysCheapest$587Average$832FlexibilityNo cancel feeOn-time70%

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