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Cheap flights from London Heathrow Airport to Montreal Pierre Elliott Trudeau Intl Airport from £322

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 20/6. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — YUL
12 May — 19 May1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from London Heathrow to Montreal Pierre Elliott Trudeau Intl are usually found in September or January, booked 86 days in advance, depart on a Friday or Wednesday and return on a Sunday

Cheap flight deals from Heathrow to Pierre Elliott Trudeau Intl

Enter your travel dates to find the best prices.

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 12 April 2026.

Tue 2/612:15
LHR
-
YUL
1 stop12h 30m
United Airlines
Wed 10/615:25
YUL
-
LHR
1 stop10h 50m
United Airlines
Deal found 11/4£401
Sat 20/609:30
LHR
-
YUL
Nonstop7h 30m
Air Canada
Sat 20/621:20
YUL
-
LHR
2 stops42h 40m
Air Canada
Deal found 11/4£406
Tue 2/618:05
LHR
-
YUL
Nonstop7h 10m
British Airways
Mon 8/622:00
YUL
-
LHR
Nonstop6h 40m
British Airways
Deal found 10/4£406
Fri 5/618:05
LHR
-
YUL
Nonstop7h 10m
British Airways
Mon 8/622:00
YUL
-
LHR
Nonstop6h 40m
British Airways
Deal found 10/4£407
Fri 12/614:10
LHR
-
YUL
2 stops45h 39m
Air Canada
Sun 14/621:20
YUL
-
LHR
1 stop18h 40m
Air Canada
Deal found 11/4£423
Wed 3/618:05
LHR
-
YUL
Nonstop7h 10m
British Airways
Thu 11/622:00
YUL
-
LHR
Nonstop6h 40m
British Airways
Deal found 10/4£426
Fri 5/618:05
LHR
-
YUL
Nonstop7h 10m
British Airways
Sun 7/622:00
YUL
-
LHR
Nonstop6h 40m
British Airways
Deal found 10/4£428
Fri 5/618:05
LHR
-
YUL
Nonstop7h 10m
British Airways
Thu 11/622:00
YUL
-
LHR
Nonstop6h 40m
British Airways
Deal found 11/4£429
Wed 23/918:05
LHR
-
YUL
Nonstop7h 10m
British Airways
Mon 28/922:00
YUL
-
LHR
Nonstop6h 40m
British Airways
Deal found 9/4£429
Sat 19/914:10
LHR
-
YUL
1 stop10h 03m
Air Canada
Thu 24/916:45
YUL
-
LHR
1 stop8h 45m
Air Canada
Deal found 9/4£434
Sat 30/514:10
LHR
-
YUL
1 stop21h 35m
Air Canada
Sun 31/518:30
YUL
-
LHR
1 stop10h 05m
Air Canada
Deal found 9/4£435

Find 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 12 April 2026.

Round-trip from

£401

One-way from

£322

Popular in

August

Cheapest in

September

Average price

£534

Good round-trip deal

£557 or less

Good one-way deal

£600 or less
United Airlines
  • United Airlines
  • 2/6-10/6
  • 2 total stops
  • 23h 20m total
  • London to Montreal
Search Deals
20/6
  • 20/6
  • 2 total stops
  • 29h 10m total
  • London to Montreal
Search Deals
Highest demand for flights based on searches. 5% potential increase in price (£23 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (£7 potential savings vs. average return price).
Search Deals
Average for round-trip flights in April 2026
Search Deals
Price to beat on a round-trip flight from London Heathrow to Montreal Pierre Elliott Trudeau Intl.
Search Deals
Price to beat on a one-way flight from London Heathrow to Montreal Pierre Elliott Trudeau Intl.
Search Deals

Cheapflights Fare Finder

 
Customise 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 858,174 searches. Data last updated 12 April 2026.
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

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonMontreal

LHR - YUL

LHRYUL

London Heathrow

Tue 9/6

09:55-16:55

1 stop12h 00m

Montreal Pierre Elliott Trudeau Intl

Tue 16/6

22:20-16:35

1 stop13h 15m

£484

LondonMontreal

LHR - YUL

LHRYUL

London Heathrow

Fri 22/5

07:45-16:10

1 stop13h 25m

Montreal Pierre Elliott Trudeau Intl

Sun 24/5

15:25-10:40

2 stops14h 15m

£538

LondonMontreal

LHR - YUL

LHRYUL

London Heathrow

Sun 10/5

06:00-19:21

2 stops18h 21m

Montreal Pierre Elliott Trudeau Intl

Sun 31/5

18:35-13:00

2 stops13h 25m

£587

LondonMontreal

LHR - YUL

LHRYUL

London Heathrow

Fri 28/8

15:20-22:06

1 stop11h 46m

Montreal Pierre Elliott Trudeau Intl

Sat 12/12

08:15-06:40

2 stops17h 25m

£596

LondonMontreal

LHR - YUL

LHRYUL

London Heathrow

Sun 26/4

07:30-17:28

2 stops14h 58m

Montreal Pierre Elliott Trudeau Intl

Sat 23/5

15:25-08:20

1 stop11h 55m

£598

LondonMontreal

LHR - YUL

LHRYUL

London Heathrow

Fri 3/7

09:30-21:26

2 stops16h 56m

Montreal Pierre Elliott Trudeau Intl

Fri 10/7

06:00-21:25

1 stop10h 25m

£614

LondonMontreal

LHR - YUL

LHRYUL

London Heathrow

Sat 11/7

07:45-16:10

1 stop13h 25m

Montreal Pierre Elliott Trudeau Intl

Fri 24/7

08:30-05:55

2 stops16h 25m

£622

LondonMontreal

LHR - YUL

LHRYUL

London Heathrow

Fri 22/5

18:55-13:39

2 stops23h 44m

Montreal Pierre Elliott Trudeau Intl

Sat 13/6

18:50-10:45

1 stop10h 55m

£634

LondonMontreal

LHR - YUL

LHRYUL

London Heathrow

Fri 8/5

08:40-19:21

2 stops15h 41m

Montreal Pierre Elliott Trudeau Intl

Fri 22/5

16:40-13:40

2 stops16h 00m

£634

LondonMontreal

LHR - YUL

LHRYUL

London Heathrow

Sun 24/5

08:55-14:55

1 stop11h 00m

Montreal Pierre Elliott Trudeau Intl

Sun 31/5

18:35-13:00

2 stops13h 25m

£660

Flights are sorted by cheapest return flights first.

Deals found on 9/4

Showing 1-10 of 23 resultsSorted by cheapest first
1
2
3

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 return 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 return flight from Heathrow to Pierre Elliott Trudeau Intl. Price data was last updated on 10 April 2026.

The best time to book flights from London Heathrow Airport to Montreal Pierre Elliott Trudeau Intl Airport is 86 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, May is the cheapest month in which you can book a flight from London Heathrow Airport to Montreal Pierre Elliott Trudeau Intl Airport (average of £328). Flying from London Heathrow Airport to Montreal Pierre Elliott Trudeau Intl Airport in July is currently the most expensive (average of £406). 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 12 April 2026.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from London Heathrow Airport to Montreal Pierre Elliott Trudeau Intl Airport as you normally would.

How much does it cost for a return flight from London Heathrow Airport to Montreal Pierre Elliott Trudeau Intl Airport?

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 12 April 2026.
Read through reviews of airlines operating flights from London Heathrow Airport to Montreal Pierre Elliott Trudeau Intl Airport, such as Air Transat,United Airlines, andAir Canada. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Air Transat
7.7
Good
535 reviews
Check prices

Overall

7.7

Boarding

7.9

Crew

8.4

Entertainment

7.0

Food

6.8

Comfort

7.3

Reviews

1 / 20
2.0
Mediocre

Anonymous,Dec 2025

YOW - GCM

The flight was delayed for 3.5 hours. No compensation for a meal voucher. We were positioned at the back of the plane and the toilets were not working properly. It was a foul smell coming from the toilet.
Air Transat
7.7
Good
535 reviews
Air Transat
7.7
Good
535 reviews
Check prices

Overall

7.7

Boarding

7.9

Crew

8.4

Entertainment

7.0

Food

6.8

Comfort

7.3

Reviews

1 / 20
2.0
Mediocre

Anonymous,Dec 2025

YOW - GCM

The flight was delayed for 3.5 hours. No compensation for a meal voucher. We were positioned at the back of the plane and the toilets were not working properly. It was a foul smell coming from the toilet.
United Airlines
7.4
Good
9,574 reviews
Air Transat
7.7
Good
535 reviews
Check prices

Overall

7.7

Boarding

7.9

Crew

8.4

Entertainment

7.0

Food

6.8

Comfort

7.3

Reviews

1 / 20
2.0
Mediocre

Anonymous,Dec 2025

YOW - GCM

The flight was delayed for 3.5 hours. No compensation for a meal voucher. We were positioned at the back of the plane and the toilets were not working properly. It was a foul smell coming from the toilet.
Air Canada
7.1
Good
10,917 reviews
Air Transat
7.7
Good
535 reviews
Check prices

Overall

7.7

Boarding

7.9

Crew

8.4

Entertainment

7.0

Food

6.8

Comfort

7.3

Reviews

1 / 20
2.0
Mediocre

Anonymous,Dec 2025

YOW - GCM

The flight was delayed for 3.5 hours. No compensation for a meal voucher. We were positioned at the back of the plane and the toilets were not working properly. It was a foul smell coming from the toilet.
Lufthansa
6.8
Okay
7,913 reviews
Air Transat
7.7
Good
535 reviews
Check prices

Overall

7.7

Boarding

7.9

Crew

8.4

Entertainment

7.0

Food

6.8

Comfort

7.3

Reviews

1 / 20
2.0
Mediocre

Anonymous,Dec 2025

YOW - GCM

The flight was delayed for 3.5 hours. No compensation for a meal voucher. We were positioned at the back of the plane and the toilets were not working properly. It was a foul smell coming from the toilet.
British Airways
6.7
Okay
7,875 reviews
Air Transat
7.7
Good
535 reviews
Check prices

Overall

7.7

Boarding

7.9

Crew

8.4

Entertainment

7.0

Food

6.8

Comfort

7.3

Reviews

1 / 20
2.0
Mediocre

Anonymous,Dec 2025

YOW - GCM

The flight was delayed for 3.5 hours. No compensation for a meal voucher. We were positioned at the back of the plane and the toilets were not working properly. It was a foul smell coming from the toilet.

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?

    Departing from London Heathrow Airport to Montreal Pierre Elliott Trudeau Intl Airport will take you 13h 25m. London Heathrow Airport and Montreal Pierre Elliott Trudeau Intl Airport are separated by a distance of 3239 mi. 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 London Heathrow Airport to Montreal Pierre Elliott Trudeau Intl Airport round-trip?

    Our cheapest airline available from London Heathrow Airport to Montreal Pierre Elliott Trudeau Intl Airport is Air Transat. Our recent data shows that you can find tickets from as low as £319 on this airline. Additional options worth looking into are United Airlines and Air Canada, starting at £325 and £360 round-trip. Air Transat is priced at 36% lower than the current average price of a flight leaving 3 months from now.

  • What are the cheapest airlines to fly from London Heathrow Airport to Montreal Pierre Elliott Trudeau Intl Airport one-way?

    One-way options have recently been found by users for as low as £277 on Virgin Atlantic. Other airlines that offer cheap prices include British Airways from £289 and TAP AIR PORTUGAL from £326 one-way.

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

    Consider Air Canada (93%), United Airlines (93%) or Lufthansa (93%) when booking your flight. These represent the most reliable airlines when flying from London Heathrow Airport to Montreal Pierre Elliott Trudeau Intl Airport.

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

    Looking at all options, your cheapest flight can be booked for £406. While the most popular route (London Heathrow - Montreal Pierre Elliott Trudeau Intl) can be booked for £407 on average, our data indicates £958 when flying from London Heathrow Airport to Montreal Pierre Elliott Trudeau Intl Airport.

  • 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 holiday 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, May is the cheapest month in which you can book a flight from London Heathrow Airport to Montreal Pierre Elliott Trudeau Intl Airport (average of £328). Flying from London Heathrow Airport to Montreal Pierre Elliott Trudeau Intl Airport in July is currently the most expensive (average of £406). 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
Cornwall
Laval

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Alternative routes for Heathrow to Pierre Elliott Trudeau Intl

See prices for flight routes from nearby airports that may be better suited for you.
Gatwick to Pierre Elliott Trudeau Intl flights
London City to Pierre Elliott Trudeau Intl flights
Stansted to Pierre Elliott Trudeau Intl flights
Luton to Pierre Elliott Trudeau Intl flights

Top 7 airlines flying from Heathrow to Pierre Elliott Trudeau Intl

Discover the top 7 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 858,174 searches. Data last updated 12 April 2026.
AirlineCheapestAverageFlexibilityOn-time
Air TransatCheapest£319Average£486FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
United AirlinesCheapest£325Average£492FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Air CanadaCheapest£361Average£515FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
British AirwaysCheapest£375Average£539FlexibilityNo cancel feeOn-time70%
Search British Airways flights
FinnairCheapest£387Average£788FlexibilityNo cancel feeOn-time76%
Search Finnair flights
LufthansaCheapest£396Average£522FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Virgin AtlanticCheapest£423Average£717FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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

When you search for this flight from Heathrow to Pierre Elliott Trudeau Intl, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

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

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Heathrow to Pierre Elliott Trudeau Intl.

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

Yes! Cheapflights helps users easily find flights from Heathrow to Pierre Elliott Trudeau Intl with no change fees.

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

Yes, Cheapflights offers price alerts on Heathrow to Pierre Elliott Trudeau Intl flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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