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$324+ Cheap flights from Pierre Elliott Trudeau Intl (YUL) to London (LON)

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 7/19. Fares are subject to change and may not be available on all flights or dates of travel.
YUL — LON
Aug 8 — Aug 151
Sat 8/8
Sat 8/15
1 adult, Economy
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Cheapflights Tip: The best prices from Montreal Pierre Elliott Trudeau Intl to London are usually found in November or January, booked 77 days in advance, depart on a Saturday or Sunday and return on a Thursday

Cheap flight deals from Pierre Elliott Trudeau Intl to London

Cheapest flights from Pierre Elliott Trudeau Intl to London
Explore the most affordable flight options available from Pierre Elliott Trudeau Intl to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 9, 2026.

This FlightHub deal was found by Cheapflights users on 7/9. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/810:05 pm
YUL
-
LGW
Nonstop6h 45m
Air Transat
Tue 10/1312:40 pm
LGW
-
YUL
1 stop12h 50m
Air Transat
Deal found 7/9$528
This FlightHub deal was found by Cheapflights users on 7/9. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/73:10 pm
YUL
-
LGW
1 stop14h 35m
Air Transat
Wed 9/1611:35 am
LGW
-
YUL
Nonstop7h 40m
Air Transat
Deal found 7/9$529
This oojo deal was found by Cheapflights users on 7/8. 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.
Wed 11/49:45 pm
YUL
-
LHR
1 stop14h 45m
TAP AIR PORTUGAL
Sun 11/86:00 am
LHR
-
YUL
1 stop18h 55m
TAP AIR PORTUGAL
Deal found 7/8$529
This Air Transat deal was found by Cheapflights users on 7/9. 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 Air Transat is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/1310:05 pm
YUL
-
LGW
Nonstop6h 45m
Air Transat
Mon 10/59:40 am
LGW
-
YUL
1 stop12h 22m
Air Transat
Deal found 7/9$530
This oojo deal was found by Cheapflights users on 7/8. 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.
Mon 9/710:45 pm
YUL
-
LHR
1 stop15h 05m
TAP AIR PORTUGAL
Wed 9/166:00 am
LHR
-
YUL
1 stop19h 45m
TAP AIR PORTUGAL
Deal found 7/8$530
This Air Transat deal was found by Cheapflights users on 7/7. 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 Transat is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2010:05 pm
YUL
-
LGW
Nonstop6h 45m
Air Transat
Sat 10/2412:40 pm
LGW
-
YUL
1 stop11h 52m
Air Transat
Deal found 7/7$531
This Air Transat deal was found by Cheapflights users on 7/9. 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 Air Transat is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/1710:05 pm
YUL
-
LGW
Nonstop6h 45m
Air Transat
Mon 10/2611:40 am
LGW
-
YUL
1 stop11h 35m
Air Transat
Deal found 7/9$532
This Air Transat deal was found by Cheapflights users on 7/7. 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 Transat is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/310:05 pm
YUL
-
LGW
Nonstop6h 45m
Air Transat
Thu 10/1512:40 pm
LGW
-
YUL
1 stop11h 40m
Air Transat
Deal found 7/7$533
This Kiwi.com deal was found by Cheapflights users on 7/5. 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.
Sat 9/55:00 pm
YUL
-
LGW
1 stop9h 55m
Air Transat
Sun 9/2011:35 am
LGW
-
YUL
Nonstop7h 40m
Air Transat
Deal found 7/5$534
This Trip.com deal was found by Cheapflights users on 7/7. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/310:05 pm
YUL
-
LGW
Nonstop6h 45m
Air Transat
Tue 9/812:40 pm
LGW
-
YUL
1 stop11h 52m
Air Transat
Deal found 7/7$535
This oojo deal was found by Cheapflights users on 7/8. 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.
Wed 9/2310:45 pm
YUL
-
LHR
1 stop19h 10m
TAP AIR PORTUGAL
Tue 10/66:45 pm
LHR
-
YUL
1 stop31h 00m
TAP AIR PORTUGAL
Deal found 7/8$536
This Kiwi.com deal was found by Cheapflights users on 7/5. 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.
Sun 9/610:05 pm
YUL
-
LGW
Nonstop6h 45m
Air Transat
Fri 9/1812:40 pm
LGW
-
YUL
1 stop11h 50m
Air Transat
Deal found 7/5$537

Find flight deals from Pierre Elliott Trudeau Intl to London

Discover tips and strategies to find the most affordable flight options for your journey from Pierre Elliott Trudeau Intl (YUL) to London (LON). 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 9, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$529
(Justfly.com)

One-way from

$324
(SmartFares)

Popular in

December

Cheapest in

November

Average price

$799

Good round-trip deal

$542 or less

Good one-way deal

$534 or less
Provider with most accurate pricing for Montreal Pierre Elliott Trudeau Intl-London (LON) flight deals.
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Provider most trusted by Cheapflights users for Montreal Pierre Elliott Trudeau Intl-London (LON) flights.
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From Montreal Pierre Elliott Trudeau Intl to London (LON)
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One-way flight from Montreal Pierre Elliott Trudeau Intl to London (LON)
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Highest demand for flights based on searches. 1% potential increase in price ($10 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($22 potential savings vs. average RT price).
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Average for round-trip flights in July 2026
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Price to beat on a round-trip flight from Montreal Pierre Elliott Trudeau Intl to London (LON).
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Price to beat on a one-way flight from Montreal Pierre Elliott Trudeau Intl to London (LON).
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Pierre Elliott Trudeau Intl to London 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 9, 2026.
Use the filters below to find and compare flights from Montreal Pierre Elliott Trudeau Intl Airport to London 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

Thu 10/15

10:10 pm-10:00 am

Nonstop6h 50m

London Heathrow

Fri 10/23

2:05 pm-4:40 pm

Nonstop7h 35m

$633

MontrealLondon

YUL - LGW

YULLGW

Montreal Pierre Elliott Trudeau Intl

Thu 10/15

4:40 pm-8:25 am

1 stop10h 45m

London Gatwick

Fri 10/23

9:25 am-7:21 pm

2 stops14h 56m

$643

MontrealLondon

YUL - LGW

YULLGW

Montreal Pierre Elliott Trudeau Intl

Thu 10/15

4:40 pm-8:25 am

1 stop10h 45m

London Gatwick

Mon 10/19

9:25 am-7:21 pm

2 stops14h 56m

$643

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Tue 10/13

4:40 pm-1:00 pm

2 stops15h 20m

London Heathrow

Wed 10/28

8:05 pm-4:10 pm

1 stop24h 05m

$646

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Thu 10/15

6:35 pm-1:00 pm

2 stops13h 25m

London Heathrow

Fri 10/23

8:40 am-3:00 pm

1 stop11h 20m

$663

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Fri 10/23

6:50 pm-1:50 pm

1 stop14h 00m

London Heathrow

Mon 10/26

8:55 am-4:20 pm

1 stop11h 25m

$664

MontrealLondon

YUL - LGW

YULLGW

Montreal Pierre Elliott Trudeau Intl

Sun 9/27

7:00 pm-4:00 pm

1 stop16h 00m

London Gatwick

Wed 10/7

5:00 pm-3:05 pm

1 stop27h 05m

$672

MontrealLondon

YUL - LGW

YULLGW

Montreal Pierre Elliott Trudeau Intl

Wed 9/23

10:45 pm-8:30 pm

2 stops16h 45m

London Gatwick

Tue 10/6

4:25 pm-8:45 pm

1 stop33h 20m

$675

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Thu 10/15

11:23 am-6:55 am

2 stops14h 32m

London Heathrow

Mon 10/19

6:50 am-5:23 pm

2 stops15h 33m

$675
Quickest round-trip

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Thu 9/3

10:00 pm-9:40 am

Nonstop6h 40m

London Heathrow

Sun 9/6

6:05 pm-8:15 pm

Nonstop7h 10m

$676

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/8

Showing 1-10 of 58 resultsSorted by cheapest first
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Compare providers for flights from Pierre Elliott Trudeau Intl to London

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 London in July.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars
MytripPrice Accuracy3 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy2 starsTrust Score*1 star

*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 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 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 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 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 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 London

Have a flexible travel schedule? Discover the best time to fly to London 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

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

Currently, December is the cheapest month in which you can book a flight from Montreal Pierre Elliott Trudeau Intl Airport to London (average of $344). Flying from Montreal Pierre Elliott Trudeau Intl Airport to London in April is currently the most expensive (average of $1,121). 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 LON?

Find hourly flight availability from Pierre Elliott Trudeau Intl to London. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 9, 2026.

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

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

Explore weekly flight availability from Pierre Elliott Trudeau Intl to London. 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 9, 2026.

The most flights from YUL to LON are scheduled on a Wednesday (20 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (9 on average).

How much does it cost to fly round-trip from Montreal Pierre Elliott Trudeau Intl Airport to London?

What’s the top layover airport for flights from Montreal Pierre Elliott Trudeau Intl Airport to London?

Share of 1-stop round-trip flights from Montreal Pierre Elliott Trudeau Intl Airport to London chosen by Cheapflights users in the past 12 months, using the same layover each way.

Lisbon (LIS) – chosen by Cheapflights users on 50% of 1-stop itineraries from Montreal Pierre Elliott Trudeau Intl Airport to London on Cheapflights.

What’s the cheapest layover airport for flights from Montreal Pierre Elliott Trudeau Intl Airport to London?

Average round-trip fare for 1-stop flights from Montreal Pierre Elliott Trudeau Intl Airport to London, chosen by Cheapflights users in the past 12 months, with the same layover each way.

Lisbon (LIS) is the most affordable 1-stop option, with an average round-trip price of $774.

What’s the fastest layover option from Montreal Pierre Elliott Trudeau Intl Airport to London?

Shortest average travel time for 1-stop one-way flights from Montreal Pierre Elliott Trudeau Intl Airport to London, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.

Flights via Amsterdam (AMS) have the shortest average one-way travel time for 1-stop routes: 9h 00m.

Which airport typically offers the quickest layover for flights from Montreal Pierre Elliott Trudeau Intl Airport to London?

Average layover duration for 1-stop one-way flights from Montreal Pierre Elliott Trudeau Intl Airport to London, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Amsterdam (AMS) offer the fastest connection on this route, with an average layover time of 2h 25m.

How often are flights from Montreal to London delayed?

About 20% of weekly flights between Montreal and London have experienced delays in the past year, with the average delay time being 154 minutes.

What is the most punctual flight time for Montreal to London flights?

Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the evening tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Thursday tends to have the lowest number of delays on this route, whereas Sunday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on Montreal to London flights?

Over the last year, Air Transat have had the lowest number of delays on this route, with just 10% of flights being delayed.

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

The price you pay for your flight from Montreal Pierre Elliott Trudeau Intl Airport to London may vary depending on when you book. For the best chance of a lower fare, look to book 65 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Get insights into the airlines that provide service to London. 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 London. Reviews last updated July 9, 2026.
Peruse reviews from past customers who have flown with Air Transat,American Airlines, andAir Canada from Montreal Pierre Elliott Trudeau Intl Airport to London to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Air Transat
7.8
Good
563 reviews

Boarding

8.0

Comfort

7.3

Overall

7.8

Crew

8.5

Entertainment

7.1

Food

6.8

Reviews

1 / 20
8.0
Excellent

Paul,Jul 2026

YUL - LGW

Had to bus to the plane which made priority boarding at the back of the bus
Air Transat
7.8
Good
563 reviews
Air Transat
7.8
Good
563 reviews

Boarding

8.0

Comfort

7.3

Overall

7.8

Crew

8.5

Entertainment

7.1

Food

6.8

Reviews

1 / 20
8.0
Excellent

Paul,Jul 2026

YUL - LGW

Had to bus to the plane which made priority boarding at the back of the bus
American Airlines
7.1
Good
11,792 reviews
Air Transat
7.8
Good
563 reviews

Boarding

8.0

Comfort

7.3

Overall

7.8

Crew

8.5

Entertainment

7.1

Food

6.8

Reviews

1 / 20
8.0
Excellent

Paul,Jul 2026

YUL - LGW

Had to bus to the plane which made priority boarding at the back of the bus
Air Canada
7.1
Good
11,321 reviews
Air Transat
7.8
Good
563 reviews

Boarding

8.0

Comfort

7.3

Overall

7.8

Crew

8.5

Entertainment

7.1

Food

6.8

Reviews

1 / 20
8.0
Excellent

Paul,Jul 2026

YUL - LGW

Had to bus to the plane which made priority boarding at the back of the bus
Lufthansa
6.8
Okay
8,126 reviews
Air Transat
7.8
Good
563 reviews

Boarding

8.0

Comfort

7.3

Overall

7.8

Crew

8.5

Entertainment

7.1

Food

6.8

Reviews

1 / 20
8.0
Excellent

Paul,Jul 2026

YUL - LGW

Had to bus to the plane which made priority boarding at the back of the bus
British Airways
6.7
Okay
8,105 reviews
Air Transat
7.8
Good
563 reviews

Boarding

8.0

Comfort

7.3

Overall

7.8

Crew

8.5

Entertainment

7.1

Food

6.8

Reviews

1 / 20
8.0
Excellent

Paul,Jul 2026

YUL - LGW

Had to bus to the plane which made priority boarding at the back of the bus

Related info for your journey

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

    For as low as $633, Air Transat can have you in London from Montreal Pierre Elliott Trudeau Intl Airport in 6h 50m. Montreal Pierre Elliott Trudeau Intl Airport and London are separated by a distance of 3239 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

    Cheapflights users have booked flights from Montreal Pierre Elliott Trudeau Intl Airport to London round-trip from $526. Other airlines that can offer you cheap pricing are TAP AIR PORTUGAL, from $531, and Air Canada, from $546. Users have found that Air Transat is 25% cheaper than the other options available to this destination.

  • What are the most popular routes from Montreal Pierre Elliott Trudeau Intl Airport to London?

    While some choose either Montreal Pierre Elliott Trudeau Intl - London City or Montreal Pierre Elliott Trudeau Intl - London Gatwick, Montreal Pierre Elliott Trudeau Intl - London Heathrow is the most popular route from Montreal Pierre Elliott Trudeau Intl Airport to London.

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

    No one likes to see their flight delayed. When booking a flight from Montreal Pierre Elliott Trudeau Intl Airport to London consider choosing Austrian Airlines (82%), United Airlines (82%) or Lufthansa (82%) as they are the most reliable in getting you off to your destination on time.

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

    On average you can expect to pay $1,516 for a flight from Montreal Pierre Elliott Trudeau Intl Airport to London. The cheapest flight overall is $450 while the most popular route, (Montreal Pierre Elliott Trudeau Intl - London Heathrow) is currently priced at $529.

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

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

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

    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 London.

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

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

    Currently, December is the cheapest month in which you can book a flight from Montreal Pierre Elliott Trudeau Intl Airport to London (average of $344). Flying from Montreal Pierre Elliott Trudeau Intl Airport to London in April is currently the most expensive (average of $1,121). 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?

Book flights to London if you plan to visit one of these locations
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Dorking
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Gatwick
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Harrow
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Alternative routes for Pierre Elliott Trudeau Intl to London

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Pierre Elliott Trudeau Intl to Heathrow flights

Top 6 airlines flying from Pierre Elliott Trudeau Intl to London

Discover the top 6 airlines that operate flights from Pierre Elliott Trudeau Intl to London. 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 9, 2026.
AirlineCheapestAverageFlexibilityOn-time
Air TransatCheapest$526Average$657FlexibilityNo cancel feeOn-time50%
TAP AIR PORTUGALCheapest$531Average$826FlexibilityNo cancel feeOn-timeN/A
Air CanadaCheapest$546Average$783FlexibilityNo cancel feeOn-time67%
British AirwaysCheapest$608Average$888FlexibilityNo cancel feeOn-time70%
American AirlinesCheapest$610Average$816FlexibilityNo cancel feeOn-time71%
LufthansaCheapest$629Average$789FlexibilityNo cancel feeOn-time76%

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