Heathrow

$267+ 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 10/23. Fares are subject to change and may not be available on all flights or dates of travel.
YUL — LHR
ago. 3 — ago. 101
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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 Sunday 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 julio 29, 2025.

Round-trip from

$539
(Air Canada)

One-way from

$267
(Booking.com)

Popular in

December

Cheapest in

October

Average price

$848

Good round-trip deal

$809 or less

Good one-way deal

$378 or less
From Montreal Pierre Elliott Trudeau Intl to London Heathrow
One-way flight from Montreal Pierre Elliott Trudeau Intl to London Heathrow
Highest demand for flights based on searches. 4% potential increase in price ($35 potential increase over avg. RT price).
Cheapest flight prices on average. 2% potential price decrease ($17 potential savings vs. average RT price).
Average for round-trip flights in July 2025
Price to beat on a round-trip flight from Montreal Pierre Elliott Trudeau Intl to London Heathrow.
Price to beat on a one-way flight from Montreal Pierre Elliott Trudeau Intl to London Heathrow.

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 julio 29, 2025.

This Air Canada 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 10/198:05 pmYUL - LHR
1 stop19h 55mMultiple Airlines
mié. 10/2911:10 amLHR - YUL
1 stop12h 10mMultiple Airlines
Deal found 7/29$539
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.
vie. 10/107:10 pmYUL - LHR
2 stops32h 10mAustrian Airlines
lun. 10/136:00 amLHR - YUL
2 stops35h 05mAustrian Airlines
Deal found 7/28$540
This Air Canada 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 11/207:00 pmYUL - LHR
1 stop11h 20mAir Canada
dom. 11/237:25 pmLHR - YUL
1 stop23h 20mAir Canada
Deal found 7/29$541
This Lufthansa 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 9/304:30 pmYUL - LHR
1 stop12h 30mLufthansa
vie. 10/109:00 amLHR - YUL
1 stop17h 00mLufthansa
Deal found 7/28$542
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.
dom. 11/24:45 pmYUL - LHR
1 stop10h 20mSWISS
mié. 11/58:05 pmLHR - YUL
1 stop24h 05mSWISS
Deal found 7/29$551
This British Airways 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 11/38:40 pmYUL - LHR
Nonstop6h 50mBritish Airways
mar. 11/44:10 pmLHR - YUL
Nonstop7h 35mBritish Airways
Deal found 7/29$552
This TAP AIR PORTUGAL deal was found by Cheapflights users on 7/27. 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.
lun. 12/19:45 pmYUL - LHR
1 stop14h 45mTAP AIR PORTUGAL
mar. 12/166:30 pmLHR - YUL
1 stop30h 45mTAP AIR PORTUGAL
Deal found 7/27$572
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.
mar. 9/233:41 pmYUL - LHR
2 stops13h 59mUnited Airlines
mar. 10/146:50 amLHR - YUL
2 stops33h 38mUnited Airlines
Deal found 7/28$591

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 julio 29, 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

dom. 10/19

8:05 pm-9:00 pm

1 stop19h 55m

London Heathrow

mié. 10/29

11:10 am-7:20 pm

1 stop12h 10m

$539

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

vie. 10/10

7:10 pm-8:20 am

2 stops32h 10m

London Heathrow

lun. 10/13

6:00 am-12:05 pm

2 stops35h 05m

$540

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

jue. 11/20

7:00 pm-11:20 am

1 stop11h 20m

London Heathrow

dom. 11/23

7:25 pm-1:45 pm

1 stop23h 20m

$541

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

mar. 9/30

4:30 pm-10:00 am

1 stop12h 30m

London Heathrow

vie. 10/10

9:00 am-9:00 pm

1 stop17h 00m

$542

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

dom. 11/2

4:45 pm-8:05 am

1 stop10h 20m

London Heathrow

jue. 11/6

9:00 am-3:10 pm

1 stop11h 10m

$551

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

lun. 11/3

8:40 pm-8:30 am

Nonstop6h 50m

London Heathrow

dom. 11/9

4:10 pm-6:45 pm

Nonstop7h 35m

$552

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

lun. 12/1

9:45 pm-5:30 pm

1 stop14h 45m

London Heathrow

mar. 12/16

6:30 pm-8:15 pm

1 stop30h 45m

$572

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

mar. 9/23

3:41 pm-10:40 am

2 stops13h 59m

London Heathrow

mar. 10/14

6:50 am-11:28 am

2 stops33h 38m

$591

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

jue. 10/23

10:45 pm-10:55 pm

1 stop19h 10m

$267

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

vie. 10/3

11:00 pm-2:15 pm

1 stop10h 15m

$290

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/28

Showing 1-10 of 13 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.

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 July 25, 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 $1,097). 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 julio 29, 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 21% 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 julio 29, 2025.

The most flights from YUL to LHR are scheduled on a Tuesday (18 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (8 on average).

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 julio 29, 2025.
Read reviews from past customers who have flown Austrian Airlines, Finnair, and SWISS 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.

Food

6.8

Overall

7.6

Boarding

7.6

Entertainment

6.8

Crew

8.1

Comfort

7.3

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

Food

6.8

Overall

7.6

Boarding

7.6

Entertainment

6.8

Crew

8.1

Comfort

7.3

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

Food

6.8

Overall

7.6

Boarding

7.6

Entertainment

6.8

Crew

8.1

Comfort

7.3

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

Food

6.8

Overall

7.6

Boarding

7.6

Entertainment

6.8

Crew

8.1

Comfort

7.3

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

Food

6.8

Overall

7.6

Boarding

7.6

Entertainment

6.8

Crew

8.1

Comfort

7.3

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

Food

6.8

Overall

7.6

Boarding

7.6

Entertainment

6.8

Crew

8.1

Comfort

7.3

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 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 Austrian Airlines 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 Air Canada and Lufthansa, with the lowest prices starting at $541 and $542, respectively. Austrian Airlines 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 $267. Aer Lingus flights start at $407 while deals on British Airways start at $500 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: Austrian Airlines (88%), United Airlines (88%), Lufthansa( 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 $1,477, our data shows the cheapest flight currently is $316. When looking at the most popular route, (Montreal Pierre Elliott Trudeau Intl - London Heathrow), you can expect to pay $480 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 $1,097). 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
Hounslow
Hayes
Thornton Heath
Harrow
Canterbury
Dover
Stratford-upon-Avon
Orpington
Watford
Northampton
Gatwick
Borehamwood
Dartford
Broadway
Aylesbury
Chelmsford
Folkestone
Southend-on-Sea
Chichester
Swindon

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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.

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 julio 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$545Average$737FlexibilityNo cancel feeOn-time67%
American AirlinesCheapest$567Average$854FlexibilityNo cancel feeOn-time71%
LufthansaCheapest$589Average$771FlexibilityNo cancel feeOn-time76%
British AirwaysCheapest$631Average$744FlexibilityNo cancel feeOn-time70%

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