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Cheap flights from London Heathrow Airport to Montreal Pierre Elliott Trudeau Intl Airport from C$ 440

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 4/11. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — YUL
19 Oct — 26 Oct1
1 adult
1 adult, Economy

Cheapflights Tip: The best prices from London Heathrow to Montreal Pierre Elliott Trudeau Intl are usually found in May or September, booked 81 days in advance, depart on a Saturday or Wednesday and return on a Sunday

Cheap flight deals from Heathrow to Pierre Elliott Trudeau Intl

Discover tips and strategies to find the most affordable flight options for your journey from Heathrow (LHR) to Pierre Elliott Trudeau Intl (YUL). 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 19 September 2025.

Round-trip from

C$ 667

One-way from

C$ 440

Popular in

July

Cheapest in

May

Average price

C$ 789

Good round-trip deal

C$ 765 or less

Good one-way deal

C$ 720 or less
Lufthansa
  • Lufthansa
  • 8/11-12/11
  • 1 total stop
  • 19h 45m total
  • London to Montreal
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4/11
  • 4/11
  • 1 total stop
  • 33h 25m total
  • London to Montreal
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Highest demand for flights based on searches. 13% potential increase in price (C$ 192 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease (C$ 31 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Price to beat on a round-trip flight from London Heathrow to Montreal Pierre Elliott Trudeau Intl.
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Price to beat on a one-way flight from London Heathrow to Montreal Pierre Elliott Trudeau Intl.
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Find flight deals from Heathrow to Pierre Elliott Trudeau Intl

Cheapest flights from Heathrow to Pierre Elliott Trudeau Intl
Explore the most affordable flight options available from Heathrow to Pierre Elliott Trudeau Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 19 September 2025.

Sat 8/116:00 a.m.LHR - YUL
1 stop12h 45mMultiple Airlines
Wed 12/117:10 p.m.YUL - LHR
Nonstop7h 00mMultiple Airlines
Deal found 18/9C$ 667
Sat 1/116:50 a.m.LHR - YUL
1 stop9h 55mMultiple Airlines
Sat 8/119:45 p.m.YUL - LHR
1 stop17h 50mMultiple Airlines
Deal found 17/9C$ 669
Mon 1/127:40 a.m.LHR - YUL
1 stop15h 40mMultiple Airlines
Thu 11/123:10 p.m.YUL - LHR
1 stop15h 10mMultiple Airlines
Deal found 18/9C$ 670
Thu 9/106:50 a.m.LHR - YUL
1 stop9h 45mAir Canada
Sat 18/108:05 p.m.YUL - LHR
1 stop19h 55mAir Canada
Deal found 17/9C$ 671
Sun 2/115:50 a.m.LHR - YUL
1 stop9h 55mMultiple Airlines
Sun 9/114:45 p.m.YUL - LHR
1 stop10h 20mMultiple Airlines
Deal found 18/9C$ 673
Wed 24/98:40 a.m.LHR - YUL
1 stop11h 20mAir Canada
Wed 1/108:05 p.m.YUL - LHR
1 stop19h 55mAir Canada
Deal found 17/9C$ 674
Mon 22/97:30 p.m.LHR - YUL
1 stop23h 20mAustrian Airlines
Mon 29/96:35 p.m.YUL - LHR
1 stop32h 45mAustrian Airlines
Deal found 17/9C$ 676
Sat 8/116:00 a.m.LHR - YUL
1 stop12h 45mAir Canada
Thu 13/1110:30 p.m.YUL - LHR
2 stops17h 05mAir Canada
Deal found 18/9C$ 677
Fri 3/1012:40 p.m.LHR - YUL
1 stop13h 13mAir Canada
Sun 12/108:15 p.m.YUL - LHR
1 stop10h 35mAir Canada
Deal found 17/9C$ 678
Wed 24/95:10 p.m.LHR - YUL
1 stop26h 50mAir Canada
Wed 15/101:25 p.m.YUL - LHR
2 stops14h 10mAir Canada
Deal found 17/9C$ 680
Thu 25/96:00 a.m.LHR - YUL
1 stop14h 00mAir Canada
Sun 28/97:30 p.m.YUL - LHR
1 stop30h 00mAir Canada
Deal found 18/9C$ 681
Thu 30/106:50 a.m.LHR - YUL
1 stop9h 55mAir Canada
Thu 11/1212:10 p.m.YUL - LHR
1 stop13h 20mAir Canada
Deal found 17/9C$ 682

Cheapflights Fare Finder

 
Customize your flight search to find flights from Heathrow to Pierre Elliott Trudeau Intl 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 19 September 2025.
Use the filters below to find and compare flights from London Heathrow Airport to Montreal Pierre Elliott Trudeau Intl Airport that are best for you.

Fly from

Heathrow

Fly to

Pierre Elliott Trudeau Intl

Route

Depart

Return

Price

LondonMontreal

LHR - YUL

LHRYUL

London Heathrow

Sat 8/11

6:50 a.m.-11:45 a.m.

1 stop9h 55m

Montreal Pierre Elliott Trudeau Intl

Fri 14/11

6:40 p.m.-8:35 p.m.

1 stop20h 55m

C$ 674

LondonMontreal

LHR - YUL

LHRYUL

London Heathrow

Thu 20/11

7:40 a.m.-6:23 p.m.

2 stops15h 43m

Montreal Pierre Elliott Trudeau Intl

Mon 24/11

2:00 p.m.-6:30 a.m.

1 stop11h 30m

C$ 685

LondonMontreal

LHR - YUL

LHRYUL

London Heathrow

Tue 3/3

6:35 a.m.-6:23 p.m.

2 stops16h 48m

Montreal Pierre Elliott Trudeau Intl

Tue 10/3

3:10 p.m.-8:30 a.m.

1 stop13h 20m

C$ 687

LondonMontreal

LHR - YUL

LHRYUL

London Heathrow

Mon 27/10

11:05 a.m.-12:45 p.m.

1 stop29h 40m

Montreal Pierre Elliott Trudeau Intl

Sun 9/11

10:10 a.m.-6:30 a.m.

1 stop15h 20m

C$ 699

LondonMontreal

LHR - YUL

LHRYUL

London Heathrow

Sat 8/11

11:10 a.m.-7:14 p.m.

2 stops13h 04m

Montreal Pierre Elliott Trudeau Intl

Thu 13/11

10:30 p.m.-8:35 p.m.

2 stops17h 05m

C$ 731

LondonMontreal

LHR - YUL

LHRYUL

London Heathrow

Sun 2/11

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

Nonstop7h 45m

Montreal Pierre Elliott Trudeau Intl

Sun 9/11

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

Nonstop7h 00m

C$ 735

LondonMontreal

LHR - YUL

LHRYUL

London Heathrow

Sun 2/11

7:30 a.m.-7:48 p.m.

2 stops17h 18m

Montreal Pierre Elliott Trudeau Intl

Sun 9/11

3:00 p.m.-8:25 a.m.

1 stop12h 25m

C$ 742

LondonMontreal

LHR - YUL

LHRYUL

London Heathrow

Sat 7/2

7:30 a.m.-9:17 p.m.

2 stops18h 47m

Montreal Pierre Elliott Trudeau Intl

Sun 22/2

1:10 p.m.-9:10 a.m.

2 stops15h 00m

C$ 742

LondonMontreal

LHR - YUL

LHRYUL

London Heathrow

Wed 11/2

7:30 a.m.-5:02 p.m.

2 stops14h 32m

Montreal Pierre Elliott Trudeau Intl

Sat 21/2

8:30 a.m.-6:20 a.m.

2 stops16h 50m

C$ 742

LondonMontreal

LHR - YUL

LHRYUL

London Heathrow

Sat 8/11

6:30 a.m.-5:05 p.m.

2 stops15h 35m

Montreal Pierre Elliott Trudeau Intl

Wed 12/11

3:30 p.m.-10:50 a.m.

2 stops14h 20m

C$ 765

Flights are sorted by cheapest round-trip flights first.

Deals found on 18/9

Showing 1-10 of 22 results
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Best time to book a flight from Heathrow to Pierre Elliott Trudeau Intl

Have a flexible travel schedule? Discover the best time to fly to Pierre Elliott Trudeau Intl from Heathrow 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 London Heathrow Airport to Montreal Pierre Elliott Trudeau Intl Airport

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

Use this chart to determine the optimal time to book a round-trip flight from Heathrow to Pierre Elliott Trudeau Intl. Price data was last updated on 12 September 2025.

To ensure you get the cheapest price possible for a flight from London Heathrow Airport to Montreal Pierre Elliott Trudeau Intl Airport, you should look to book at least 81 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 London Heathrow Airport to Montreal Pierre Elliott Trudeau Intl Airport?

Currently, October is the cheapest month in which you can book a flight from London Heathrow Airport to Montreal Pierre Elliott Trudeau Intl Airport (average of C$ 241). Flying from London Heathrow Airport to Montreal Pierre Elliott Trudeau Intl Airport in April is currently the most expensive (average of C$ 316). 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 LHR to YUL?

Find hourly flight availability from Heathrow to Pierre Elliott Trudeau Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 19 September 2025.

It’s optimal to fly from London Heathrow Airport to Montreal Pierre Elliott Trudeau Intl Airport in the afternoon. By choosing this option you can save up to 9% on the cost of your flight, compared to a flight at noon.

Reviews of airlines servicing Pierre Elliott Trudeau Intl

Get insights into the airlines that provide service to Pierre Elliott Trudeau Intl. 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 Pierre Elliott Trudeau Intl. Reviews last updated 19 September 2025.
Read through reviews of airlines operating flights from London Heathrow Airport to Montreal Pierre Elliott Trudeau Intl Airport, such as Air Canada,Lufthansa, andBritish Airways. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Air Canada
7.1
Good
10,000 reviews
Check prices

Boarding

7.3

Crew

7.8

Comfort

7.1

Entertainment

6.8

Overall

7.1

Food

6.3

Reviews

1 / 20
8.0
Excellent

Graeme,Sep 2025

YWG - YVR

Why not start boarding from the higher seat numbers? Easier movement for everyone. Easier to put baggage in over head lockers. Unable to get a coffee due to air turbulence, but not offered the chance to have a coffee once it had ceased.
Air Canada
7.1
Good
10,000 reviews
Air Canada
7.1
Good
10,000 reviews
Check prices

Boarding

7.3

Crew

7.8

Comfort

7.1

Entertainment

6.8

Overall

7.1

Food

6.3

Reviews

1 / 20
8.0
Excellent

Graeme,Sep 2025

YWG - YVR

Why not start boarding from the higher seat numbers? Easier movement for everyone. Easier to put baggage in over head lockers. Unable to get a coffee due to air turbulence, but not offered the chance to have a coffee once it had ceased.
Lufthansa
6.8
Okay
7,415 reviews
Air Canada
7.1
Good
10,000 reviews
Check prices

Boarding

7.3

Crew

7.8

Comfort

7.1

Entertainment

6.8

Overall

7.1

Food

6.3

Reviews

1 / 20
8.0
Excellent

Graeme,Sep 2025

YWG - YVR

Why not start boarding from the higher seat numbers? Easier movement for everyone. Easier to put baggage in over head lockers. Unable to get a coffee due to air turbulence, but not offered the chance to have a coffee once it had ceased.
British Airways
6.7
Okay
7,373 reviews
Air Canada
7.1
Good
10,000 reviews
Check prices

Boarding

7.3

Crew

7.8

Comfort

7.1

Entertainment

6.8

Overall

7.1

Food

6.3

Reviews

1 / 20
8.0
Excellent

Graeme,Sep 2025

YWG - YVR

Why not start boarding from the higher seat numbers? Easier movement for everyone. Easier to put baggage in over head lockers. Unable to get a coffee due to air turbulence, but not offered the chance to have a coffee once it had ceased.

Related info for your journey

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

    There are many flights that can get you from London Heathrow Airport to Montreal Pierre Elliott Trudeau Intl Airport in 9h 55m. Fly via Air Canada or Lufthansa to get the fastest option. Airlines will cover a distance of 5213 km. Both multi-stop and direct flights can be found to your destination and back.

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

    Cheapflights users have booked flights from London Heathrow Airport to Montreal Pierre Elliott Trudeau Intl Airport round-trip from C$ 649. Other airlines that can offer you cheap pricing are Air Canada, from C$ 672, and British Airways, from C$ 674. Lufthansa is currently priced 26% below the average price you’ll pay for this route.

  • What are the most reliable airlines from London Heathrow Airport to Montreal Pierre Elliott Trudeau Intl 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 London Heathrow Airport to Montreal Pierre Elliott Trudeau Intl Airport on time: Air Canada (81%), Austrian Airlines (81%), United Airlines (81%).

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

    Looking for the cheapest flight from London Heathrow Airport to Montreal Pierre Elliott Trudeau Intl Airport? While on average our users pay C$ 888, our data indicates the cheapest price to be C$ 689. The most popular route (London Heathrow - Montreal Pierre Elliott Trudeau Intl), is priced around C$ 625.

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

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

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

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Heathrow to Pierre Elliott Trudeau Intl.

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

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

    Currently, October is the cheapest month in which you can book a flight from London Heathrow Airport to Montreal Pierre Elliott Trudeau Intl Airport (average of C$ 241). Flying from London Heathrow Airport to Montreal Pierre Elliott Trudeau Intl Airport in April is currently the most expensive (average of C$ 316). 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 Montreal Pierre Elliott Trudeau Intl Airport?

Book flights to Montreal Pierre Elliott Trudeau Intl Airport if you plan to visit one of these locations
Laval
Dorval
Sherbrooke
Cornwall
Brossard
Longueuil
Montebello
Trois-Rivières
Drummondville
Saint-Jean-sur-Richelieu
Boucherville
Bromont
North Hatley
Louiseville

Browse thousands of different options on Cheapflights for your next trip

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Top 3 airlines flying from Heathrow to Pierre Elliott Trudeau Intl

Discover the top 3 airlines that operate flights from Heathrow to Pierre Elliott Trudeau Intl. 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 19 September 2025.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapestC$ 649AverageC$ 840FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Air CanadaCheapestC$ 672AverageC$ 855FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
British AirwaysCheapestC$ 674AverageC$ 1,027FlexibilityNo cancel feeOn-time70%
Search British Airways flights

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

Users can book flights with no change fees policies with our dedicated filters. Book flights from Heathrow to Pierre Elliott Trudeau Intl flexibly with Cheapflights today.

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