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Cheap flights from Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow Airport from C$ 406

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 23/11. Fares are subject to change and may not be available on all flights or dates of travel.
YUL — LHR
13 Dec — 20 Dec1
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 13 November 2025.

Mon 17/117:10 p.m.YUL - LHR
Nonstop7h 00mAir Canada
Sun 23/1112:00 p.m.LHR - YUL
1 stop9h 50mAir Canada
Deal found 12/11C$ 814
Wed 19/114:50 p.m.YUL - LHR
1 stop11h 30mAir Canada
Thu 27/119:00 a.m.LHR - YUL
1 stop11h 10mAir Canada
Deal found 11/11C$ 815
Thu 27/117:10 p.m.YUL - LHR
Nonstop7h 00mAir Canada
Thu 4/129:00 a.m.LHR - YUL
1 stop11h 10mAir Canada
Deal found 12/11C$ 817
Wed 26/117:10 p.m.YUL - LHR
Nonstop7h 00mAir Canada
Tue 9/121:45 p.m.LHR - YUL
1 stop30h 25mAir Canada
Deal found 11/11C$ 820
Mon 17/112:00 p.m.YUL - LHR
1 stop11h 30mAir Canada
Mon 24/119:00 a.m.LHR - YUL
1 stop11h 10mAir Canada
Deal found 10/11C$ 821
Tue 11/117:10 p.m.YUL - LHR
Nonstop7h 00mAir Canada
Sun 16/116:50 a.m.LHR - YUL
1 stop9h 55mAir Canada
Deal found 10/11C$ 824
Mon 17/112:00 p.m.YUL - LHR
1 stop11h 30mAir Canada
Fri 21/119:00 a.m.LHR - YUL
1 stop11h 10mAir Canada
Deal found 12/11C$ 825
Sat 29/119:45 p.m.YUL - LHR
1 stop17h 50mMultiple Airlines
Sun 7/121:25 p.m.LHR - YUL
Nonstop7h 45mMultiple Airlines
Deal found 11/11C$ 827
Sun 16/1110:30 p.m.YUL - LHR
1 stop27h 00mMultiple Airlines
Thu 27/119:00 a.m.LHR - YUL
1 stop11h 10mMultiple Airlines
Deal found 11/11C$ 828
Fri 28/117:10 p.m.YUL - LHR
Nonstop7h 00mAir Canada
Sun 7/121:25 p.m.LHR - YUL
Nonstop7h 45mAir Canada
Deal found 11/11C$ 829
Wed 19/113:30 p.m.YUL - LHR
1 stop12h 50mMultiple Airlines
Tue 25/111:25 p.m.LHR - YUL
Nonstop7h 45mMultiple Airlines
Deal found 13/11C$ 831

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 13 November 2025.

Round-trip from

C$ 814

One-way from

C$ 406

Popular in

December

Cheapest in

October

Average price

C$ 933

Good round-trip deal

C$ 989 or less

Good one-way deal

C$ 805 or less
Air Canada
  • Air Canada
  • 28/11-7/12
  • 1 total stop
  • 22h 45m total
  • Montreal to London
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23/11
  • 23/11
  • 1 total stop
  • 11h 45m total
  • Montreal to London
Search Deals
Highest demand for flights based on searches. 3% potential increase in price (C$ 57 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
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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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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 13 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 25/11

5:10 p.m.-11:20 a.m.

1 stop13h 10m

London Heathrow

Mon 8/12

7:40 a.m.-6:20 p.m.

1 stop15h 40m

C$ 832

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Tue 25/11

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

Nonstop7h 00m

London Heathrow

Sun 7/12

1:25 p.m.-4:10 p.m.

Nonstop7h 45m

C$ 843

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Fri 28/11

8:30 p.m.-8:20 a.m.

Nonstop6h 50m

London Heathrow

Mon 8/12

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

Nonstop7h 35m

C$ 848

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Tue 25/11

8:40 p.m.-8:30 a.m.

Nonstop6h 50m

London Heathrow

Thu 4/12

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

Nonstop7h 35m

C$ 848

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Mon 2/2

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

Nonstop7h 00m

London Heathrow

Tue 17/2

1:25 p.m.-4:05 p.m.

Nonstop7h 40m

C$ 850

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Tue 25/11

5:10 p.m.-11:20 a.m.

1 stop13h 10m

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

Sat 29/11

8:30 p.m.-8:20 a.m.

Nonstop6h 50m

London Heathrow

Tue 9/12

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

Nonstop7h 35m

C$ 898

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Mon 24/11

3:00 p.m.-6:20 a.m.

1 stop10h 20m

London Heathrow

Wed 3/12

6:50 a.m.-7:45 a.m.

2 stops29h 55m

C$ 902

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Fri 28/11

2:13 p.m.-6:40 a.m.

1 stop11h 27m

London Heathrow

Sun 7/12

6:50 a.m.-12:46 p.m.

2 stops34h 56m

C$ 902

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Wed 26/11

2:29 p.m.-8:10 p.m.

1 stop24h 41m

London Heathrow

Mon 8/12

11:45 a.m.-5:20 p.m.

1 stop10h 35m

C$ 905

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/11

Showing 1-10 of 23 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 7 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$ 658). Flying from Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow Airport in July is currently the most expensive (average of C$ 1,007). 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 13 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.

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 13 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
1,335 reviews
Check prices

Food

6.7

Overall

7.6

Boarding

7.6

Comfort

7.4

Crew

8.1

Entertainment

6.9

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
1,335 reviews
Finnair
7.6
Good
1,335 reviews
Check prices

Food

6.7

Overall

7.6

Boarding

7.6

Comfort

7.4

Crew

8.1

Entertainment

6.9

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
11,050 reviews
Finnair
7.6
Good
1,335 reviews
Check prices

Food

6.7

Overall

7.6

Boarding

7.6

Comfort

7.4

Crew

8.1

Entertainment

6.9

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
10,444 reviews
Finnair
7.6
Good
1,335 reviews
Check prices

Food

6.7

Overall

7.6

Boarding

7.6

Comfort

7.4

Crew

8.1

Entertainment

6.9

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
7,572 reviews
Finnair
7.6
Good
1,335 reviews
Check prices

Food

6.7

Overall

7.6

Boarding

7.6

Comfort

7.4

Crew

8.1

Entertainment

6.9

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
7,516 reviews
Finnair
7.6
Good
1,335 reviews
Check prices

Food

6.7

Overall

7.6

Boarding

7.6

Comfort

7.4

Crew

8.1

Entertainment

6.9

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 Lufthansa and British Airways fly from Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow Airport in about 6h 50m. The time it takes to get you to your destination can typically vary by up to 6h 20m. 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$ 618, 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$ 640 and C$ 642, 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: Egyptair (82%), Air Canada (80%), Austrian Airlines (80%).

  • 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$ 2,101, our data indicates the cheapest price to be C$ 675. The most popular route (Montreal Pierre Elliott Trudeau Intl - London Heathrow), is priced around C$ 668.

  • 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$ 658). Flying from Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow Airport in July is currently the most expensive (average of C$ 1,007). 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 13 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 13 November 2025.
AirlineCheapestAverageFlexibilityOn-time
Air FranceCheapestC$ 618AverageC$ 1,118FlexibilityNo cancel feeOn-time77%
Search Air France flights
TAP AIR PORTUGALCheapestC$ 640AverageC$ 727FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
Air TransatCheapestC$ 642AverageC$ 1,024FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
LufthansaCheapestC$ 769AverageC$ 1,018FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Air CanadaCheapestC$ 769AverageC$ 1,025FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
British AirwaysCheapestC$ 770AverageC$ 1,065FlexibilityNo cancel feeOn-time70%
Search British Airways flights
American AirlinesCheapestC$ 802AverageC$ 1,099FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
Virgin AtlanticCheapestC$ 804AverageC$ 1,104FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
FinnairCheapestC$ 875AverageC$ 1,022FlexibilityNo 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?

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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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