Find flights
Deals
When to book
Airlines
FAQs

Cheap flights from Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow Airport from C$ 371

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 12/10. Fares are subject to change and may not be available on all flights or dates of travel.
YUL — LHR
19 Jul — 26 Jul1
1 adult

Cheapflights Tip: The best prices from Montreal Pierre Elliott Trudeau Intl to London Heathrow are usually found in October or May, booked 70 days in advance, depart on a Sunday or Friday and return on a Tuesday

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 14 July 2025.

Round-trip from

C$ 735

One-way from

C$ 371

Popular in

December

Cheapest in

October

Average price

C$ 1,158

Good round-trip deal

C$ 983 or less

Good one-way deal

C$ 774 or less
British Airways
  • British Airways
  • 4/9-10/9
  • Nonstop
  • 13h 50m total
  • Montreal to London
Search Deals
TAP AIR PORTUGAL
  • TAP AIR PORTUGAL
  • 12/10
  • 1 total stop
  • 14h 00m total
  • Montreal to London
Search Deals
Highest demand for flights based on searches. 4% potential increase in price (C$ 64 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 32 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 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.
Search Deals

Find flight deals from Pierre Elliott Trudeau Intl to Heathrow

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 14 July 2025.

Thu 4/910:05 p.m.YUL - LHR
Nonstop6h 40mBritish Airways
Wed 10/96:05 p.m.LHR - YUL
Nonstop7h 10mBritish Airways
Deal found 13/7C$ 735
Wed 24/99:55 p.m.YUL - LHR
Nonstop6h 40mAir Canada
Mon 29/96:50 a.m.LHR - YUL
1 stop9h 45mAir Canada
Deal found 13/7C$ 739
Wed 1/109:55 p.m.YUL - LHR
Nonstop6h 40mMultiple Airlines
Wed 8/106:50 a.m.LHR - YUL
1 stop9h 45mMultiple Airlines
Deal found 11/7C$ 742
Thu 4/910:05 p.m.YUL - LHR
Nonstop6h 40mAmerican Airlines
Wed 10/96:05 p.m.LHR - YUL
Nonstop7h 10mAmerican Airlines
Deal found 14/7C$ 753
Wed 3/99:55 p.m.YUL - LHR
Nonstop6h 40mLufthansa
Sun 14/99:30 a.m.LHR - YUL
Nonstop7h 10mLufthansa
Deal found 14/7C$ 756
Fri 12/910:45 p.m.YUL - LHR
1 stop15h 05mTAP AIR PORTUGAL
Thu 25/96:00 a.m.LHR - YUL
1 stop20h 10mTAP AIR PORTUGAL
Deal found 13/7C$ 813

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 14 July 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

Sun 7/9

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

Nonstop6h 40m

London Heathrow

Sun 21/9

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

Nonstop7h 10m

C$ 731

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Wed 3/9

10:45 p.m.-12:45 p.m.

1 stop33h 00m

London Heathrow

Wed 10/9

11:20 a.m.-8:45 p.m.

1 stop14h 25m

C$ 732

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Wed 24/9

9:55 p.m.-9:35 a.m.

Nonstop6h 40m

London Heathrow

Mon 29/9

6:50 a.m.-11:35 a.m.

1 stop9h 45m

C$ 739

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Wed 1/10

9:55 p.m.-9:35 a.m.

Nonstop6h 40m

London Heathrow

Wed 8/10

6:50 a.m.-11:35 a.m.

1 stop9h 45m

C$ 742

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Thu 4/9

10:05 p.m.-9:45 a.m.

Nonstop6h 40m

London Heathrow

Wed 10/9

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

Nonstop7h 10m

C$ 753

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Wed 3/9

9:55 p.m.-9:35 a.m.

Nonstop6h 40m

London Heathrow

Sun 14/9

9:30 a.m.-11:40 a.m.

Nonstop7h 10m

C$ 756

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Sun 12/10

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

1 stop14h 00m

C$ 371

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Wed 30/7

11:00 p.m.-2:15 p.m.

1 stop10h 15m

C$ 383

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Sat 19/7

4:35 p.m.-8:35 a.m.

1 stop11h 00m

C$ 409

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Mon 21/7

10:25 p.m.-10:00 a.m.

Nonstop6h 35m

C$ 433

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/7

Showing 1-10 of 11 results
1
2

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 11 July 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 70 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, January 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$ 560). Flying from Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow Airport in July is currently the most expensive (average of C$ 859). 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 14 July 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 30% 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 Sunday mornings when fares are most often at their lowest. Tuesday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow Airport

Explore weekly flight availability from Pierre Elliott Trudeau Intl to Heathrow. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 14 July 2025.

The most flights from YUL to LHR are scheduled on a Tuesday (18 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (11 on average).

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 14 July 2025.
Read through reviews of airlines operating flights from Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow Airport, such as SWISS,American Airlines, andAir Canada. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
SWISS
7.5
Good
1,657 reviews
Check prices

Boarding

7.6

Entertainment

6.8

Crew

8.2

Overall

7.5

Comfort

7.4

Food

7.1

Reviews

1 / 20
2.0
Mediocre

Jeff,Feb 2025

BER - ZRH

Ground and flight crew are lazy. No food. Late. Ryanair is better.
SWISS
7.5
Good
1,657 reviews
SWISS
7.5
Good
1,657 reviews
Check prices

Boarding

7.6

Entertainment

6.8

Crew

8.2

Overall

7.5

Comfort

7.4

Food

7.1

Reviews

1 / 20
2.0
Mediocre

Jeff,Feb 2025

BER - ZRH

Ground and flight crew are lazy. No food. Late. Ryanair is better.
American Airlines
7.2
Good
10,000 reviews
SWISS
7.5
Good
1,657 reviews
Check prices

Boarding

7.6

Entertainment

6.8

Crew

8.2

Overall

7.5

Comfort

7.4

Food

7.1

Reviews

1 / 20
2.0
Mediocre

Jeff,Feb 2025

BER - ZRH

Ground and flight crew are lazy. No food. Late. Ryanair is better.
Air Canada
7.1
Good
9,725 reviews
SWISS
7.5
Good
1,657 reviews
Check prices

Boarding

7.6

Entertainment

6.8

Crew

8.2

Overall

7.5

Comfort

7.4

Food

7.1

Reviews

1 / 20
2.0
Mediocre

Jeff,Feb 2025

BER - ZRH

Ground and flight crew are lazy. No food. Late. Ryanair is better.
TAP AIR PORTUGAL
7.1
Good
1,918 reviews
SWISS
7.5
Good
1,657 reviews
Check prices

Boarding

7.6

Entertainment

6.8

Crew

8.2

Overall

7.5

Comfort

7.4

Food

7.1

Reviews

1 / 20
2.0
Mediocre

Jeff,Feb 2025

BER - ZRH

Ground and flight crew are lazy. No food. Late. Ryanair is better.
Lufthansa
6.8
Okay
7,208 reviews
SWISS
7.5
Good
1,657 reviews
Check prices

Boarding

7.6

Entertainment

6.8

Crew

8.2

Overall

7.5

Comfort

7.4

Food

7.1

Reviews

1 / 20
2.0
Mediocre

Jeff,Feb 2025

BER - ZRH

Ground and flight crew are lazy. No food. Late. Ryanair is better.

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.

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

    Currently priced at C$ 735, British Airways will fly you from Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow Airport and back. In addition to British Airways, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Air Canada and American Airlines - these airlines can fly you to your destination from C$ 739 and C$ 753, respectively. British Airways is currently priced 27% 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$ 371 on TAP AIR PORTUGAL. Other airlines that offer cheap prices include Air Canada from C$ 409 and Lufthansa from C$ 433 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: Austrian Airlines (88%), United Airlines (88%), Lufthansa (88%).

  • 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$ 2,027, our data indicates the cheapest price to be C$ 447. The most popular route (Montreal Pierre Elliott Trudeau Intl - London Heathrow), is priced around C$ 656.

  • 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, January 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$ 560). Flying from Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow Airport in July is currently the most expensive (average of C$ 859). 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
Brentford
Sutton
Hounslow
Slough
Leamington Spa
Milton Keynes
Romford
Watford
Luton
Bromley
Bedford
Southall

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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 14 July 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 10 airlines flying from Pierre Elliott Trudeau Intl to Heathrow

Discover the top 10 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 14 July 2025.
AirlineCheapestAverageFlexibilityOn-time
TAP AIR PORTUGALCheapestC$ 626AverageC$ 696FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
Air TransatCheapestC$ 687AverageC$ 1,015FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
Air CanadaCheapestC$ 741AverageC$ 984FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
LufthansaCheapestC$ 760AverageC$ 997FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Virgin AtlanticCheapestC$ 762AverageC$ 857FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
British AirwaysCheapestC$ 791AverageC$ 1,050FlexibilityNo cancel feeOn-time70%
Search British Airways flights
KLMCheapestC$ 796AverageC$ 1,025FlexibilityNo cancel feeOn-time75%
Search KLM flights
Air FranceCheapestC$ 809AverageC$ 907FlexibilityNo cancel feeOn-time77%
Search Air France flights
American AirlinesCheapestC$ 941AverageC$ 1,122FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
FinnairCheapestC$ 957AverageC$ 1,008FlexibilityNo 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.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.