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$337+ 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 8/11. Fares are subject to change and may not be available on all flights or dates of travel.
YUL — LHR
jun. 17 — jun. 241
mar. 6/17
mar. 6/24
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 October or May, booked 70 days in advance, depart on a Saturday or Thursday and return on a Tuesday

Cheap 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 junio 12, 2025.

Round-trip from

$540
(Air Canada)

One-way from

$337
(Kiwi.com)

Popular in

December

Cheapest in

October

Average price

$783

Good round-trip deal

$703 or less

Good one-way deal

$607 or less
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. 4% potential increase in price ($33 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($16 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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Price to beat on a round-trip flight from Montreal Pierre Elliott Trudeau Intl to London Heathrow.
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Price to beat on a one-way flight from Montreal Pierre Elliott Trudeau Intl to London Heathrow.
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Find 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 junio 12, 2025.

This Air Canada deal was found by Cheapflights users on 6/12. 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.
jue. 9/259:55 pmYUL - LHR
Nonstop6h 40mAir Canada
lun. 9/296:50 amLHR - YUL
1 stop9h 45mAir Canada
Deal found 6/12$540
This Lufthansa deal was found by Cheapflights users on 6/11. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 9/39:55 pmYUL - LHR
Nonstop6h 40mLufthansa
mié. 10/19:30 amLHR - YUL
Nonstop7h 10mLufthansa
Deal found 6/11$551
This Expedia deal was found by Cheapflights users on 6/12. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 9/39:55 pmYUL - LHR
Nonstop6h 40mMultiple Airlines
mié. 9/176:50 amLHR - YUL
1 stop9h 45mMultiple Airlines
Deal found 6/12$565
This Cheapflightsfares deal was found by Cheapflights users on 6/12. 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.
jue. 10/2310:05 pmYUL - LHR
Nonstop6h 40mBritish Airways
lun. 10/274:30 pmLHR - YUL
Nonstop7h 35mBritish Airways
Deal found 6/12$595
This United Airlines deal was found by Cheapflights users on 6/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 9/32:20 pmYUL - LHR
1 stop15h 20mUnited Airlines
mar. 9/309:30 amLHR - YUL
1 stop11h 40mUnited Airlines
Deal found 6/11$603
This Finnair deal was found by Cheapflights users on 6/11. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 10/2210:10 pmYUL - LHR
Nonstop6h 40mFinnair
vie. 11/74:30 pmLHR - YUL
Nonstop7h 35mFinnair
Deal found 6/11$618
This American Airlines deal was found by Cheapflights users on 6/12. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 10/232:30 pmYUL - LHR
1 stop12h 10mAmerican Airlines
lun. 10/274:30 pmLHR - YUL
Nonstop7h 35mAmerican Airlines
Deal found 6/12$645
This Delta deal was found by Cheapflights users on 6/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 6/136:50 pmYUL - LHR
1 stop31h 50mDelta
vie. 6/2011:45 amLHR - YUL
1 stop10h 10mDelta
Deal found 6/10$651
This Orbitz deal was found by Cheapflights users on 6/12. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 8/127:05 pmYUL - LHR
1 stop20h 50mBrussels Airlines
dom. 10/126:50 amLHR - YUL
1 stop9h 45mBrussels Airlines
Deal found 6/12$677
This Austrian Airlines deal was found by Cheapflights users on 6/12. 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.
mar. 8/129:50 pmYUL - LHR
1 stop27h 45mAustrian Airlines
dom. 10/126:00 amLHR - YUL
2 stops34h 35mAustrian Airlines
Deal found 6/12$686
This SWISS deal was found by Cheapflights users on 6/10. 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 SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 11/104:50 pmYUL - LHR
1 stop10h 15mSWISS
vie. 11/216:40 pmLHR - YUL
2 stops32h 08mSWISS
Deal found 6/10$693
This Virgin Atlantic deal was found by Cheapflights users on 6/10. 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 Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 8/3012:55 pmYUL - LHR
1 stop15h 00mVirgin Atlantic
mié. 9/1011:45 amLHR - YUL
1 stop10h 10mVirgin Atlantic
Deal found 6/10$715

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 junio 12, 2025.
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

Pierre Elliott Trudeau Intl

Fly to

Heathrow

Route

Depart

Return

Price

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

jue. 9/25

9:55 pm-9:35 am

Nonstop6h 40m

London Heathrow

lun. 9/29

6:50 am-11:35 am

1 stop9h 45m

$540

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

mié. 9/3

9:55 pm-9:35 am

Nonstop6h 40m

London Heathrow

mié. 10/1

9:30 am-11:40 am

Nonstop7h 10m

$551

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

mié. 9/3

9:55 pm-9:35 am

Nonstop6h 40m

London Heathrow

mié. 9/17

6:50 am-11:35 am

1 stop9h 45m

$565

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

jue. 10/23

10:05 pm-9:45 am

Nonstop6h 40m

London Heathrow

lun. 10/27

4:30 pm-8:05 pm

Nonstop7h 35m

$595

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

mié. 9/3

2:20 pm-10:40 am

1 stop15h 20m

London Heathrow

vie. 9/26

9:30 am-4:10 pm

1 stop11h 40m

$603

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

mié. 10/22

10:10 pm-9:50 am

Nonstop6h 40m

London Heathrow

lun. 11/10

4:30 pm-7:05 pm

Nonstop7h 35m

$618

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

jue. 10/23

2:30 pm-7:40 am

1 stop12h 10m

London Heathrow

lun. 10/27

4:30 pm-8:05 pm

Nonstop7h 35m

$645

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

mié. 10/1

6:50 pm-10:45 am

1 stop10h 55m

London Heathrow

dom. 10/5

8:55 pm-4:55 pm

1 stop25h 00m

$651

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

mié. 10/22

5:00 pm-1:45 pm

1 stop15h 45m

London Heathrow

sáb. 11/8

6:20 am-12:15 pm

1 stop10h 55m

$653

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

mar. 8/12

7:05 pm-8:55 pm

1 stop20h 50m

London Heathrow

dom. 10/12

6:50 am-11:35 am

1 stop9h 45m

$677

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/11

Showing 1-10 of 31 results
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The best insider tips for Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow 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 Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow Airport trip
Airlines
Air Canada

Air Canada's Signature Class features lie-flat seats and exclusive lounge access.


Air Canada offers complimentary meals for all fare classes on international flights.

Read more about Air Canadaby Jessica Macdonald
British Airways

BA's Club Suite offers private pods with a door, ideal for long-haul comfort.


BA's World Traveller Plus offers extra seat width and legroom, enhancing comfort.

Read more about British Airwaysby Gabriel Leigh
Airports
YUL

Use YULExpress to pre-book security fast track up to 72 hours before departure for a smoother experience.

Read more about YULby John Walton
LHR

Take the Heathrow Express for the fastest route to central London, arriving at Paddington Station.

Read more about LHRby Ramsey Qubein
Our travel experts
Jessica Macdonald

Jessica Macdonald

Expert on Air Canada

Jessica Macdonald

Jessica Macdonald

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 Leigh

Gabriel Leigh

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

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 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 June 9, 2025.

Booking 70 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 $661). Flying from Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow Airport in June is currently the most expensive (average of $1,108). 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 junio 12, 2025.

It’s typically best to fly out from Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow Airport in the morning. Doing so could potentially save you 20% on the flight price compared to flying in the afternoon, which is usually more expensive.

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

Explore weekly flight availability from Pierre Elliott Trudeau Intl to Heathrow. 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 junio 12, 2025.

The most flights from YUL to LHR are scheduled on a Thursday (13 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (4 on average).

Rainfall in Heathrow by month

Plan your trip to Heathrow by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in London Heathrow Airport ranges from 1.6 - 2.8 inches per month. January is typically the wettest month, when rainfall can reach 2.8 in. July is typically the driest time to visit London Heathrow Airport when rainfall is around 1.6 in.

Temperature in Heathrow by month

Plan your trip to Heathrow by taking into account the average temperature totals by month.

If weather is an important factor for your trip to London Heathrow Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 62.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 39.2 F).

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 junio 12, 2025.
Read through reviews of airlines operating flights from Montreal to London, such as Delta, KLM and LOT. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,950 reviews

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
8.0
Very good
7,950 reviews
Delta
8.0
Very good
7,950 reviews

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
KLM
7.8
Good
1,358 reviews
Delta
8.0
Very good
7,950 reviews

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
LOT
7.6
Good
1,077 reviews
Delta
8.0
Very good
7,950 reviews

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Austrian Airlines
7.6
Good
802 reviews
Delta
8.0
Very good
7,950 reviews

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Finnair
7.6
Good
1,290 reviews
Delta
8.0
Very good
7,950 reviews

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

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.

  • 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 $540. Additional round-trip tickets that might be worth considering are offered by Lufthansa and British Airways, with the lowest prices starting at $551 and $595, respectively. Air Canada is 27% cheaper than the average price of flights available within the next 90 days to this destination.

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

    To fly one-way, consider booking your trip with TAP AIR PORTUGAL, which is currently one of the cheapest options available, starting at $351. Aer Lingus flights start at $403 while deals on WestJet start at $404 one-way.

  • 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: American Airlines (88%), Aer Lingus (88%), Finnair( 88%).

  • 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 $1,912, our data shows the cheapest flight currently is $436. When looking at the most popular route, (Montreal Pierre Elliott Trudeau Intl - London Heathrow), you can expect to pay $551 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 $661). Flying from Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow Airport in June is currently the most expensive (average of $1,108). 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
Hayes
Hounslow
Thornton Heath
Luton
Canterbury
Harrow
Dover
Stratford-upon-Avon
Gatwick
Orpington
Watford
Northampton
Croydon
Folkestone
Borehamwood
Broadway
Sutton
Aylesbury
Chelmsford
Brentwood

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Alternative routes for Pierre Elliott Trudeau Intl to Heathrow

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

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 junio 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$559Average$744FlexibilityNo cancel feeOn-time67%
LufthansaCheapest$596Average$764FlexibilityNo cancel feeOn-time76%
British AirwaysCheapest$632Average$745FlexibilityNo cancel feeOn-time70%
American AirlinesCheapest$690Average$854FlexibilityNo cancel feeOn-time71%

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