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Cheap flights from Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow Airport from C$ 413

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 23/1. Fares are subject to change and may not be available on all flights or dates of travel.
YUL — LHR
26 Dec — 2 Jan1
1 adult
1 adult, Economy, 0 bags

Cheapflights Tip: The best prices from Montreal Pierre Elliott Trudeau Intl to London Heathrow are usually found in October or May, booked 66 days in advance, depart on a Sunday or Friday and return on a Saturday

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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 26 November 2025.

Tue 25/117:10 p.m.YUL - LHR
Nonstop7h 00mLufthansa
Tue 2/121:25 p.m.LHR - YUL
Nonstop7h 45mLufthansa
Deal found 24/11C$ 844
Tue 25/119:45 p.m.YUL - LHR
1 stop17h 50mAir Canada
Mon 8/129:00 a.m.LHR - YUL
1 stop13h 35mAir Canada
Deal found 24/11C$ 845
Thu 27/117:10 p.m.YUL - LHR
Nonstop7h 00mAir Canada
Tue 2/126:00 p.m.LHR - YUL
1 stop18h 48mAir Canada
Deal found 24/11C$ 847
Wed 26/114:30 p.m.YUL - LHR
2 stops11h 50mAir Canada
Mon 1/1211:05 a.m.LHR - YUL
1 stop29h 40mAir Canada
Deal found 23/11C$ 848
Thu 4/128:40 p.m.YUL - LHR
Nonstop6h 50mBritish Airways
Tue 9/124:10 p.m.LHR - YUL
Nonstop7h 35mBritish Airways
Deal found 24/11C$ 852
Tue 25/119:45 p.m.YUL - LHR
1 stop17h 50mAir Canada
Tue 2/126:00 p.m.LHR - YUL
1 stop12h 53mAir Canada
Deal found 24/11C$ 855
Mon 1/128:10 p.m.YUL - LHR
2 stops13h 35mLufthansa
Mon 8/126:35 a.m.LHR - YUL
1 stop16h 45mLufthansa
Deal found 26/11C$ 863
Fri 28/114:45 p.m.YUL - LHR
1 stop10h 20mAir Canada
Tue 2/129:00 a.m.LHR - YUL
2 stops15h 14mAir Canada
Deal found 25/11C$ 872
Sat 29/118:30 p.m.YUL - LHR
Nonstop6h 50mBritish Airways
Sat 6/124:10 p.m.LHR - YUL
Nonstop7h 35mBritish Airways
Deal found 26/11C$ 878
Sat 29/118:30 p.m.YUL - LHR
Nonstop6h 50mBritish Airways
Sun 7/124:10 p.m.LHR - YUL
Nonstop7h 35mBritish Airways
Deal found 25/11C$ 879
Mon 1/127:10 p.m.YUL - LHR
Nonstop7h 00mMultiple Airlines
Sat 13/127:40 a.m.LHR - YUL
1 stop13h 17mMultiple Airlines
Deal found 24/11C$ 883
Wed 10/126:30 p.m.YUL - LHR
1 stop9h 50mAir Canada
Mon 15/124:20 p.m.LHR - YUL
1 stop25h 26mAir Canada
Deal found 25/11C$ 885

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 26 November 2025.

Round-trip from

C$ 844

One-way from

C$ 413

Popular in

December

Cheapest in

October

Average price

C$ 951

Good round-trip deal

C$ 972 or less

Good one-way deal

C$ 745 or less
Air Canada
  • Air Canada
  • 9/12-14/12
  • 2 total stops
  • 54h 15m total
  • Montreal to London
Search Deals
WestJet
  • WestJet
  • 23/1
  • 3 total stops
  • 25h 05m total
  • Montreal to London
Search Deals
Highest demand for flights based on searches. 3% potential increase in price (C$ 56 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 34 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
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 629,999 searches. Data last updated 26 November 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

Tue 24/2

9:29 a.m.-6:50 a.m.

2 stops16h 21m

London Heathrow

Tue 3/3

8:55 a.m.-3:20 p.m.

1 stop11h 25m

C$ 851

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Tue 24/2

9:29 a.m.-7:50 a.m.

2 stops17h 21m

London Heathrow

Mon 2/3

9:00 a.m.-3:20 p.m.

1 stop11h 20m

C$ 851

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Thu 15/1

7:05 p.m.-10:30 a.m.

1 stop10h 25m

London Heathrow

Sun 25/1

11:45 a.m.-11:12 p.m.

2 stops16h 27m

C$ 879

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Thu 4/12

5:20 p.m.-11:20 a.m.

1 stop13h 00m

London Heathrow

Tue 9/12

8:15 p.m.-11:45 a.m.

2 stops20h 30m

C$ 883

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Thu 8/1

2:25 p.m.-7:20 a.m.

1 stop11h 55m

London Heathrow

Tue 10/2

4:10 p.m.-6:45 p.m.

Nonstop7h 35m

C$ 910

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Wed 4/2

1:10 p.m.-8:25 a.m.

2 stops14h 15m

London Heathrow

Mon 16/2

6:50 a.m.-7:48 p.m.

2 stops17h 58m

C$ 910

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Mon 2/2

10:25 a.m.-6:40 a.m.

2 stops15h 15m

London Heathrow

Fri 27/2

6:50 a.m.-5:02 p.m.

2 stops15h 12m

C$ 911

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Wed 10/12

8:25 a.m.-6:40 a.m.

1 stop17h 15m

London Heathrow

Mon 15/12

7:00 a.m.-7:32 a.m.

2 stops29h 32m

C$ 911

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Fri 23/1

3:00 p.m.-9:10 a.m.

1 stop13h 10m

London Heathrow

Wed 28/1

8:00 a.m.-5:55 p.m.

2 stops14h 55m

C$ 924

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Thu 4/12

12:59 p.m.-7:50 a.m.

1 stop13h 51m

London Heathrow

Sun 11/1

11:45 a.m.-10:44 p.m.

1 stop15h 59m

C$ 935

Flights are sorted by cheapest round-trip flights first.

Deals found on 24/11

Showing 1-10 of 22 results
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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 21 November 2025.

To ensure you get the cheapest price possible for a flight from Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow Airport, you should look to book at least 66 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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 C$ 665). Flying from Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow Airport in July is currently the most expensive (average of C$ 1,014). 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 26 November 2025.

A simple way to save on the total cost of your ticket is to fly from Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow Airport in the morning. If you’re flexible enough to do this you can expect to save up to 27% on your trip compared to booking a flight in the evening.

What is the cheapest day to fly from Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow Airport?

Use this chart to determine the cheapest time to fly round-trip from Pierre Elliott Trudeau Intl to Heathrow. Price data was last updated on 16 December 2024.

Travelers seeking maximum savings on their Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow Airport flight should consider departing on Friday at noon when fares are most often at their lowest. Tuesday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

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

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 26 November 2025.
Read through reviews of airlines operating flights from Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow Airport, such as Finnair,American Airlines, andAir Canada. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Finnair
7.6
Good
1,334 reviews
Check prices

Crew

8.1

Entertainment

6.9

Food

6.7

Boarding

7.6

Comfort

7.4

Overall

7.6

Reviews

1 / 20
4.0
Okay

Anonymous,Sep 2025

WAW - HEL

My flight to Europe was cancelled and rebooked. Bags got lost by FinnAir. Flight back home from Europe was cancelled the very next day after we landed. Zero compensation for these back to back cancellations on the exact same trip. Kayak doesn’t help with flight cancellation before trips says to contact trip protection only for trip protection to say it’s up to kayak. Don’t fly FinnAir.
Finnair
7.6
Good
1,334 reviews
Finnair
7.6
Good
1,334 reviews
Check prices

Crew

8.1

Entertainment

6.9

Food

6.7

Boarding

7.6

Comfort

7.4

Overall

7.6

Reviews

1 / 20
4.0
Okay

Anonymous,Sep 2025

WAW - HEL

My flight to Europe was cancelled and rebooked. Bags got lost by FinnAir. Flight back home from Europe was cancelled the very next day after we landed. Zero compensation for these back to back cancellations on the exact same trip. Kayak doesn’t help with flight cancellation before trips says to contact trip protection only for trip protection to say it’s up to kayak. Don’t fly FinnAir.
American Airlines
7.2
Good
11,039 reviews
Finnair
7.6
Good
1,334 reviews
Check prices

Crew

8.1

Entertainment

6.9

Food

6.7

Boarding

7.6

Comfort

7.4

Overall

7.6

Reviews

1 / 20
4.0
Okay

Anonymous,Sep 2025

WAW - HEL

My flight to Europe was cancelled and rebooked. Bags got lost by FinnAir. Flight back home from Europe was cancelled the very next day after we landed. Zero compensation for these back to back cancellations on the exact same trip. Kayak doesn’t help with flight cancellation before trips says to contact trip protection only for trip protection to say it’s up to kayak. Don’t fly FinnAir.
Air Canada
7.1
Good
10,481 reviews
Finnair
7.6
Good
1,334 reviews
Check prices

Crew

8.1

Entertainment

6.9

Food

6.7

Boarding

7.6

Comfort

7.4

Overall

7.6

Reviews

1 / 20
4.0
Okay

Anonymous,Sep 2025

WAW - HEL

My flight to Europe was cancelled and rebooked. Bags got lost by FinnAir. Flight back home from Europe was cancelled the very next day after we landed. Zero compensation for these back to back cancellations on the exact same trip. Kayak doesn’t help with flight cancellation before trips says to contact trip protection only for trip protection to say it’s up to kayak. Don’t fly FinnAir.
Lufthansa
6.8
Okay
7,594 reviews
Finnair
7.6
Good
1,334 reviews
Check prices

Crew

8.1

Entertainment

6.9

Food

6.7

Boarding

7.6

Comfort

7.4

Overall

7.6

Reviews

1 / 20
4.0
Okay

Anonymous,Sep 2025

WAW - HEL

My flight to Europe was cancelled and rebooked. Bags got lost by FinnAir. Flight back home from Europe was cancelled the very next day after we landed. Zero compensation for these back to back cancellations on the exact same trip. Kayak doesn’t help with flight cancellation before trips says to contact trip protection only for trip protection to say it’s up to kayak. Don’t fly FinnAir.
British Airways
6.7
Okay
7,539 reviews
Finnair
7.6
Good
1,334 reviews
Check prices

Crew

8.1

Entertainment

6.9

Food

6.7

Boarding

7.6

Comfort

7.4

Overall

7.6

Reviews

1 / 20
4.0
Okay

Anonymous,Sep 2025

WAW - HEL

My flight to Europe was cancelled and rebooked. Bags got lost by FinnAir. Flight back home from Europe was cancelled the very next day after we landed. Zero compensation for these back to back cancellations on the exact same trip. Kayak doesn’t help with flight cancellation before trips says to contact trip protection only for trip protection to say it’s up to kayak. Don’t fly FinnAir.

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?

    Airlines like Delta and Lufthansa fly from Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow Airport in about 13h. The time it takes to get you to your destination can typically vary by up to 3h 21m. Airlines will cover a distance of 5213 km. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

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

    Currently priced at C$ 622, Air France will fly you from Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow Airport and back. In addition to Air France, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from TAP AIR PORTUGAL and Air Transat - these airlines can fly you to your destination from C$ 645 and C$ 646, respectively. Air France is currently priced 40% below the average price you’ll pay for this route.

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

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow Airport on time: American Airlines (75%), Aer Lingus (75%), Finnair (75%).

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

    Looking for the cheapest flight from Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow Airport? While on average our users pay C$ 2,034, our data indicates the cheapest price to be C$ 634. The most popular route (Montreal Pierre Elliott Trudeau Intl - London Heathrow), is priced around C$ 792.

  • 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 C$ 665). Flying from Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow Airport in July is currently the most expensive (average of C$ 1,014). 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

Travelling to a place near London Heathrow Airport?

Book flights to London Heathrow Airport if you plan to visit one of these locations
Sutton
Twickenham
Slough
Marlow
Leamington Spa
Milton Keynes
Romford
Watford
Bedford
Luton
Stratford-upon-Avon
Gatwick
Hounslow

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Fly from Pierre Elliott Trudeau Intl to Heathrow on these airlines

Choose from the following airlines for your flight from Pierre Elliott Trudeau Intl to Heathrow. Flights are based on user searches made on Cheapflights and were last updated on 26 November 2025.
Air Canada flights from Montreal Pierre Elliott Trudeau Intl to London Heathrow
British Airways flights from Montreal Pierre Elliott Trudeau Intl to London Heathrow
Lufthansa flights from Montreal Pierre Elliott Trudeau Intl to London Heathrow

Top 9 airlines flying from Pierre Elliott Trudeau Intl to Heathrow

Discover the top 9 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 629,999 searches. Data last updated 26 November 2025.
AirlineCheapestAverageFlexibilityOn-time
Air FranceCheapestC$ 622AverageC$ 1,126FlexibilityNo cancel feeOn-time77%
Search Air France flights
TAP AIR PORTUGALCheapestC$ 645AverageC$ 732FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
Air TransatCheapestC$ 646AverageC$ 1,031FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
LufthansaCheapestC$ 774AverageC$ 1,025FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Air CanadaCheapestC$ 775AverageC$ 1,033FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
British AirwaysCheapestC$ 775AverageC$ 1,072FlexibilityNo cancel feeOn-time70%
Search British Airways flights
American AirlinesCheapestC$ 808AverageC$ 1,106FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
Virgin AtlanticCheapestC$ 810AverageC$ 1,112FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
FinnairCheapestC$ 881AverageC$ 1,030FlexibilityNo cancel feeOn-time76%
Search Finnair flights

Fly with Cheapflights

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How does Cheapflights help users find flights from Pierre Elliott Trudeau Intl to Heathrow?

Cheapflights makes it easy to find Pierre Elliott Trudeau Intl to Heathrow flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from Pierre Elliott Trudeau Intl to Heathrow?

Cheapflights simply makes it quick and affordable to book flights from Pierre Elliott Trudeau Intl to Heathrow by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from Pierre Elliott Trudeau Intl to Heathrow with no change fees?

Need flexible booking options for your flight to Heathrow from Pierre Elliott Trudeau Intl? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from Pierre Elliott Trudeau Intl to Heathrow become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Heathrow from Pierre Elliott Trudeau Intl today and book when prices fit your budget.

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