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Cheap flights from Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow Airport from C$ 415

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 6/8. Fares are subject to change and may not be available on all flights or dates of travel.
YUL — LHR
27 ago — 3 set1
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 81 days in advance, depart on a Sunday or Monday and return on a Sunday

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 28 luglio 2026.

dom 6/96:25 p.m.
YUL
-
LHR
1 stop22h 10m
Multiple Airlines
mar 8/96:40 p.m.
LHR
-
YUL
1 stop25h 20m
Multiple Airlines
Deal found 27/7C$ 749
gio 1/1010:45 p.m.
YUL
-
LHR
1 stop19h 10m
TAP AIR PORTUGAL
gio 8/106:00 a.m.
LHR
-
YUL
1 stop20h 10m
TAP AIR PORTUGAL
Deal found 26/7C$ 753
mer 25/119:45 p.m.
YUL
-
LHR
1 stop16h 10m
TAP AIR PORTUGAL
sab 28/117:55 p.m.
LHR
-
YUL
1 stop29h 00m
TAP AIR PORTUGAL
Deal found 27/7C$ 763
ven 18/98:40 p.m.
YUL
-
LHR
1 stop30h 35m
SWISS
lun 21/96:00 a.m.
LHR
-
YUL
1 stop14h 00m
SWISS
Deal found 25/7C$ 769
dom 15/119:45 p.m.
YUL
-
LHR
1 stop18h 50m
TAP AIR PORTUGAL
dom 22/116:00 a.m.
LHR
-
YUL
1 stop18h 55m
TAP AIR PORTUGAL
Deal found 27/7C$ 774
sab 10/106:30 p.m.
YUL
-
LHR
1 stop12h 25m
United Airlines
lun 12/1011:05 a.m.
LHR
-
YUL
2 stops49h 43m
United Airlines
Deal found 27/7C$ 776
mar 8/99:45 a.m.
YUL
-
LHR
1 stop21h 10m
United Airlines
gio 10/911:05 a.m.
LHR
-
YUL
2 stops37h 40m
United Airlines
Deal found 24/7C$ 777
mer 11/119:45 p.m.
YUL
-
LHR
1 stop12h 45m
TAP AIR PORTUGAL
dom 22/118:15 a.m.
LHR
-
YUL
1 stop16h 40m
TAP AIR PORTUGAL
Deal found 26/7C$ 780
mer 18/119:45 p.m.
YUL
-
LHR
1 stop14h 45m
TAP AIR PORTUGAL
ven 4/126:00 a.m.
LHR
-
YUL
1 stop18h 55m
TAP AIR PORTUGAL
Deal found 26/7C$ 784
gio 24/98:40 p.m.
YUL
-
LHR
1 stop30h 35m
Multiple Airlines
dom 27/97:45 a.m.
LHR
-
YUL
1 stop13h 25m
Multiple Airlines
Deal found 23/7C$ 786
lun 28/910:45 p.m.
YUL
-
LHR
1 stop18h 15m
TAP AIR PORTUGAL
mer 7/106:45 p.m.
LHR
-
YUL
1 stop31h 25m
TAP AIR PORTUGAL
Deal found 27/7C$ 787

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 28 luglio 2026.

Round-trip from

C$ 749

One-way from

C$ 415

Popular in

December

Cheapest in

November

Average price

C$ 1,141

Good round-trip deal

C$ 833 or less

Good one-way deal

C$ 1,135 or less
SWISS
  • SWISS
  • 6/9-8/9
  • 2 total stops
  • 47h 30m total
  • Montreal to London
Search Deals
6/8
  • 6/8
  • 1 total stop
  • 10h 15m total
  • Montreal to London
Search Deals
High demand for flights, 0% potential price rise
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 30 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 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 28 luglio 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

lun 14/9

7:00 p.m.-1:45 p.m.

1 stop13h 45m

London Heathrow

ven 8/1

6:30 a.m.-5:15 p.m.

1 stop15h 45m

C$ 927

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

sab 22/8

6:00 a.m.-8:40 p.m.

1 stop9h 40m

London Heathrow

mar 1/9

6:50 a.m.-5:24 p.m.

2 stops15h 34m

C$ 956

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

mar 11/8

11:23 a.m.-6:55 a.m.

2 stops14h 32m

London Heathrow

mar 18/8

6:50 a.m.-5:27 p.m.

2 stops15h 37m

C$ 958

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

sab 29/8

11:23 a.m.-7:15 a.m.

1 stop14h 52m

London Heathrow

ven 11/9

6:50 a.m.-5:19 p.m.

2 stops15h 29m

C$ 958

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

mer 16/9

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

2 stops13h 15m

London Heathrow

mer 23/9

6:50 a.m.-8:12 p.m.

2 stops18h 22m

C$ 958

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

mar 25/8

1:50 p.m.-9:20 a.m.

2 stops14h 30m

London Heathrow

sab 29/8

6:50 a.m.-4:10 p.m.

2 stops14h 20m

C$ 958

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

sab 5/9

5:10 p.m.-7:10 a.m.

1 stop33h 00m

London Heathrow

ven 11/9

3:50 p.m.-8:35 a.m.

1 stop21h 45m

C$ 972

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

ven 28/8

6:00 a.m.-9:25 p.m.

1 stop10h 25m

London Heathrow

dom 13/9

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

2 stops17h 55m

C$ 1,001
Quickest round-trip

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

ven 16/10

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

Nonstop6h 40m

London Heathrow

mar 20/10

1:45 p.m.-9:30 p.m.

1 stop12h 45m

C$ 1,032

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

mar 6/10

4:40 p.m.-1:00 p.m.

2 stops15h 20m

London Heathrow

gio 15/10

8:05 p.m.-3:00 p.m.

1 stop23h 55m

C$ 1,035

Flights are sorted by cheapest round-trip flights first.

Deals found on 23/7

Showing 1-10 of 22 resultsSorted by cheapest first
1
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?

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 80 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$ 873). Flying from Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow Airport in December is currently the most expensive (average of C$ 1,273). 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 28 luglio 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?

Airfare is below average for this route at the moment.

Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow Airport flights typically cost between C$ 1,042 and C$ 1,354 in September.
The cheapest round-trip price found within the last 5 days was C$ 749 on Multiple Airlines (6 Sep-8 Sep).

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 28 luglio 2026.
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
1,427 reviews
Check prices

Overall

7.6

Comfort

7.4

Food

6.7

Boarding

7.7

Entertainment

6.9

Crew

8.2

Reviews

1 / 20
8.0
Excellent

Ronald,Sep 2023

SEA - LHR

Missed out on getting window seat. Middle not as comfortable for long flight.
Finnair
7.6
Good
1,427 reviews
Finnair
7.6
Good
1,427 reviews
Check prices

Overall

7.6

Comfort

7.4

Food

6.7

Boarding

7.7

Entertainment

6.9

Crew

8.2

Reviews

1 / 20
8.0
Excellent

Ronald,Sep 2023

SEA - LHR

Missed out on getting window seat. Middle not as comfortable for long flight.
American Airlines
7.1
Good
11,847 reviews
Finnair
7.6
Good
1,427 reviews
Check prices

Overall

7.6

Comfort

7.4

Food

6.7

Boarding

7.7

Entertainment

6.9

Crew

8.2

Reviews

1 / 20
8.0
Excellent

Ronald,Sep 2023

SEA - LHR

Missed out on getting window seat. Middle not as comfortable for long flight.
Air Canada
7.1
Good
11,405 reviews
Finnair
7.6
Good
1,427 reviews
Check prices

Overall

7.6

Comfort

7.4

Food

6.7

Boarding

7.7

Entertainment

6.9

Crew

8.2

Reviews

1 / 20
8.0
Excellent

Ronald,Sep 2023

SEA - LHR

Missed out on getting window seat. Middle not as comfortable for long flight.
Lufthansa
6.8
Okay
8,164 reviews
Finnair
7.6
Good
1,427 reviews
Check prices

Overall

7.6

Comfort

7.4

Food

6.7

Boarding

7.7

Entertainment

6.9

Crew

8.2

Reviews

1 / 20
8.0
Excellent

Ronald,Sep 2023

SEA - LHR

Missed out on getting window seat. Middle not as comfortable for long flight.
British Airways
6.7
Okay
8,129 reviews
Finnair
7.6
Good
1,427 reviews
Check prices

Overall

7.6

Comfort

7.4

Food

6.7

Boarding

7.7

Entertainment

6.9

Crew

8.2

Reviews

1 / 20
8.0
Excellent

Ronald,Sep 2023

SEA - LHR

Missed out on getting window seat. Middle not as comfortable for long flight.

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 Delta and United Airlines fly from Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow Airport in about 9h 40m. The time it takes to get you to your destination can typically vary by up to 4h 05m. 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$ 565, 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 British Airways and Air Canada - these airlines can fly you to your destination from C$ 772 and C$ 773, respectively. TAP AIR PORTUGAL is currently priced 46% 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$ 400 on TAP AIR PORTUGAL. Other airlines that offer cheap prices include Finnair from C$ 524 and Lufthansa from C$ 582 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 (80%), United Airlines (80%), Lufthansa (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$ 2,416, our data indicates the cheapest price to be C$ 766. The most popular route (Montreal Pierre Elliott Trudeau Intl - London Heathrow), is priced around C$ 753.

  • 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$ 873). Flying from Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow Airport in December is currently the most expensive (average of C$ 1,273). 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
Romford
Twickenham
Ilford
Bromley
Sutton
Luton
Slough
Marlow
Cobham
Hounslow
Leamington Spa
Northampton
Watford
High Wycombe
Stratford-upon-Avon
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 28 luglio 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 6 airlines flying from Pierre Elliott Trudeau Intl to Heathrow

Discover the top 6 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 28 luglio 2026.
AirlineCheapestAverageFlexibilityOn-time
TAP AIR PORTUGALCheapestC$ 565AverageC$ 836FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
British AirwaysCheapestC$ 772AverageC$ 1,056FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Air CanadaCheapestC$ 773AverageC$ 1,072FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
LufthansaCheapestC$ 792AverageC$ 1,095FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
American AirlinesCheapestC$ 794AverageC$ 988FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
FinnairCheapestC$ 881AverageC$ 1,136FlexibilityNo 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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