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Cheap flights from Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow Airport from C$ 475

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 3/6. Fares are subject to change and may not be available on all flights or dates of travel.
YUL — LHR
22 May — 29 May1
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 November or October, booked 66 days in advance, depart on a Sunday or Monday and return on a Saturday

Cheap flight deals from Pierre Elliott Trudeau Intl to Heathrow

Enter your travel dates to find the best prices.

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 22 April 2026.

Wed 30/910:00 p.m.
YUL
-
LHR
Nonstop6h 40m
British Airways
Mon 5/106:05 p.m.
LHR
-
YUL
Nonstop7h 10m
British Airways
Deal found 18/4C$ 800
Fri 22/59:20 p.m.
YUL
-
LHR
1 stop18h 40m
Air Canada
Fri 29/58:40 a.m.
LHR
-
YUL
1 stop11h 20m
Air Canada
Deal found 19/4C$ 837
Sat 2/58:55 a.m.
YUL
-
LHR
1 stop18h 40m
Air Canada
Fri 8/58:40 a.m.
LHR
-
YUL
1 stop11h 20m
Air Canada
Deal found 17/4C$ 838
Thu 21/54:30 p.m.
YUL
-
LHR
1 stop9h 00m
Air Canada
Wed 27/56:00 a.m.
LHR
-
YUL
1 stop12h 50m
Air Canada
Deal found 20/4C$ 841
Wed 20/54:40 p.m.
YUL
-
LHR
1 stop10h 15m
SWISS
Wed 27/56:00 a.m.
LHR
-
YUL
1 stop14h 00m
SWISS
Deal found 22/4C$ 848
Fri 1/59:20 p.m.
YUL
-
LHR
1 stop18h 40m
Air Canada
Thu 7/58:45 a.m.
LHR
-
YUL
1 stop11h 15m
Air Canada
Deal found 18/4C$ 849
Mon 4/54:40 p.m.
YUL
-
LHR
1 stop10h 15m
SWISS
Mon 11/56:00 a.m.
LHR
-
YUL
1 stop14h 00m
SWISS
Deal found 19/4C$ 851

Find 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 22 April 2026.

Round-trip from

C$ 800

One-way from

C$ 475

Popular in

December

Cheapest in

November

Average price

C$ 990

Good round-trip deal

C$ 1,076 or less

Good one-way deal

C$ 913 or less
British Airways
  • British Airways
  • 30/9-5/10
  • Nonstop
  • 13h 50m total
  • Montreal to London
Search Deals
3/6
  • 3/6
  • 3 total stops
  • 20h 00m total
  • Montreal to London
Search Deals
Highest demand for flights based on searches. 0% potential increase in price (C$ 3 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 31 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2026
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.
Search Deals

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 22 April 2026.
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

Fly to

Route

Depart

Return

Price

Cheapest round-trip

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Tue 5/5

8:30 a.m.-5:55 a.m.

2 stops16h 25m

London Heathrow

Fri 8/5

5:50 p.m.-4:10 p.m.

2 stops27h 20m

C$ 967

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Sat 2/5

4:25 p.m.-10:40 a.m.

2 stops13h 15m

London Heathrow

Tue 5/5

5:50 p.m.-4:10 p.m.

2 stops27h 20m

C$ 968

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Mon 1/6

10:30 p.m.-1:45 p.m.

1 stop10h 15m

London Heathrow

Mon 8/6

8:40 a.m.-11:28 p.m.

2 stops19h 48m

C$ 976

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Fri 8/5

8:20 p.m.-1:40 p.m.

1 stop12h 20m

London Heathrow

Fri 22/5

7:00 a.m.-2:55 p.m.

1 stop12h 55m

C$ 1,069

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Tue 19/5

7:30 p.m.-4:25 p.m.

2 stops15h 55m

London Heathrow

Tue 26/5

6:00 a.m.-6:59 p.m.

2 stops17h 59m

C$ 1,077

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Thu 14/5

4:25 p.m.-10:40 a.m.

2 stops13h 15m

London Heathrow

Mon 25/5

6:50 a.m.-5:25 p.m.

2 stops15h 35m

C$ 1,083

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Sat 26/9

9:28 a.m.-6:45 a.m.

2 stops16h 17m

London Heathrow

Tue 6/10

11:45 a.m.-4:55 p.m.

1 stop10h 10m

C$ 1,137

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Thu 8/10

10:45 p.m.-5:45 p.m.

1 stop14h 00m

London Heathrow

Sat 17/10

6:00 a.m.-8:19 p.m.

2 stops19h 19m

C$ 1,221

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Wed 24/6

10:30 a.m.-6:40 a.m.

1 stop15h 10m

London Heathrow

Wed 8/7

6:05 p.m.-8:15 p.m.

Nonstop7h 10m

C$ 1,261

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Tue 28/7

10:00 p.m.-9:40 a.m.

Nonstop6h 40m

London Heathrow

Sat 8/8

7:25 p.m.-9:46 a.m.

1 stop19h 21m

C$ 1,264

Flights are sorted by cheapest round-trip flights first.

Deals found on 19/4

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

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 17 April 2026.

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$ 844). Flying from Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow Airport in December is currently the most expensive (average of C$ 1,237). 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 22 April 2026.

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

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 22 April 2026.
Read through reviews of airlines operating flights from Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow Airport, such as American Airlines,Air Canada, andTAP AIR PORTUGAL. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
American Airlines
7.1
Good
11,655 reviews
Check prices

Boarding

7.5

Crew

7.9

Entertainment

6.9

Food

6.4

Comfort

7.2

Overall

7.1

Reviews

1 / 20
2.0
Mediocre

Anonymous,Mar 2026

MIA - SFO

Horrible. When they power flights for other airlines there is nothing they can do to change or accommodate any changes
American Airlines
7.1
Good
11,655 reviews
American Airlines
7.1
Good
11,655 reviews
Check prices

Boarding

7.5

Crew

7.9

Entertainment

6.9

Food

6.4

Comfort

7.2

Overall

7.1

Reviews

1 / 20
2.0
Mediocre

Anonymous,Mar 2026

MIA - SFO

Horrible. When they power flights for other airlines there is nothing they can do to change or accommodate any changes
Air Canada
7.1
Good
10,955 reviews
American Airlines
7.1
Good
11,655 reviews
Check prices

Boarding

7.5

Crew

7.9

Entertainment

6.9

Food

6.4

Comfort

7.2

Overall

7.1

Reviews

1 / 20
2.0
Mediocre

Anonymous,Mar 2026

MIA - SFO

Horrible. When they power flights for other airlines there is nothing they can do to change or accommodate any changes
TAP AIR PORTUGAL
7.1
Good
2,217 reviews
American Airlines
7.1
Good
11,655 reviews
Check prices

Boarding

7.5

Crew

7.9

Entertainment

6.9

Food

6.4

Comfort

7.2

Overall

7.1

Reviews

1 / 20
2.0
Mediocre

Anonymous,Mar 2026

MIA - SFO

Horrible. When they power flights for other airlines there is nothing they can do to change or accommodate any changes
Lufthansa
6.8
Okay
7,940 reviews
American Airlines
7.1
Good
11,655 reviews
Check prices

Boarding

7.5

Crew

7.9

Entertainment

6.9

Food

6.4

Comfort

7.2

Overall

7.1

Reviews

1 / 20
2.0
Mediocre

Anonymous,Mar 2026

MIA - SFO

Horrible. When they power flights for other airlines there is nothing they can do to change or accommodate any changes
British Airways
6.7
Okay
7,906 reviews
American Airlines
7.1
Good
11,655 reviews
Check prices

Boarding

7.5

Crew

7.9

Entertainment

6.9

Food

6.4

Comfort

7.2

Overall

7.1

Reviews

1 / 20
2.0
Mediocre

Anonymous,Mar 2026

MIA - SFO

Horrible. When they power flights for other airlines there is nothing they can do to change or accommodate any changes

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 United Airlines, Delta, and SWISS fly from Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow Airport in about 10h 15m. The time it takes to get you to your destination can typically vary by up to 6h 10m. 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$ 673, TAP AIR PORTUGAL will fly you from Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow Airport and back. In addition to TAP AIR PORTUGAL, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Air Transat and Air Canada - these airlines can fly you to your destination from C$ 685 and C$ 744, respectively. TAP AIR PORTUGAL is currently priced 32% below the average price you’ll pay for this route.

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

    One-way options have recently been found by users for as low as C$ 387 on TAP AIR PORTUGAL. Other airlines that offer cheap prices include Lufthansa from C$ 431 and Air Canada from C$ 431 one-way.

  • 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: Thai Airways (85%), American Airlines (83%), Aer Lingus (83%).

  • 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$ 1,727, our data indicates the cheapest price to be C$ 826. The most popular route (Montreal Pierre Elliott Trudeau Intl - London Heathrow), is priced around C$ 856.

  • 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$ 844). Flying from Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow Airport in December is currently the most expensive (average of C$ 1,237). 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
Gatwick
Twickenham
Bromley
Sutton
Slough
Marlow
Cobham
Leamington Spa
Watford
Luton
High Wycombe
Stratford-upon-Avon
Hounslow
Moreton-in-Marsh

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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 22 April 2026.
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 7 airlines flying from Pierre Elliott Trudeau Intl to Heathrow

Discover the top 7 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 22 April 2026.
AirlineCheapestAverageFlexibilityOn-time
TAP AIR PORTUGALCheapestC$ 673AverageC$ 730FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
Air TransatCheapestC$ 685AverageC$ 981FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
Air CanadaCheapestC$ 744AverageC$ 1,033FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
British AirwaysCheapestC$ 748AverageC$ 1,024FlexibilityNo cancel feeOn-time70%
Search British Airways flights
LufthansaCheapestC$ 748AverageC$ 1,025FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
American AirlinesCheapestC$ 768AverageC$ 971FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
FinnairCheapestC$ 931AverageC$ 1,109FlexibilityNo cancel feeOn-time76%
Search Finnair flights

Fly with Cheapflights

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

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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