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Cheap flights from Montreal Pierre Elliott Trudeau Intl Airport to London from C$ 356

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Montreal Pierre Elliott Trudeau Intl Airport to London departing on 18/3. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult

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Find the cheapest flights from Montreal Pierre Elliott Trudeau Intl Airport to London

Cheap round-trip flights

Enter your travel dates to find the best prices.
TAP AIR PORTUGAL Logo
9:45 p.m. - 9:35 p.m.
YUL
-
LHR
18h 50m
1 stop
TAP AIR PORTUGAL Logo
8:15 a.m. - 8:15 p.m.
LHR
-
YUL
17h 00m
1 stop
C$ 664TAP AIR PORTUGAL
Wed, 18 Feb - Mon, 2 Mar
TAP AIR PORTUGAL Logo
10:45 p.m. - 10:00 p.m.
YUL
-
LHR
18h 15m
1 stop
TAP AIR PORTUGAL Logo
6:45 p.m. - 8:45 p.m.
LHR
-
YUL
31h 00m
1 stop
C$ 668TAP AIR PORTUGAL
Mon, 13 Apr - Tue, 21 Apr
TAP AIR PORTUGAL Logo
9:45 p.m. - 9:35 p.m.
YUL
-
LHR
18h 50m
1 stop
TAP AIR PORTUGAL Logo
8:15 a.m. - 8:15 p.m.
LHR
-
YUL
17h 00m
1 stop
C$ 670TAP AIR PORTUGAL
Mon, 9 Feb - Wed, 18 Feb
TAP AIR PORTUGAL Logo
9:45 p.m. - 6:55 p.m.
YUL
-
LHR
16h 10m
1 stop
TAP AIR PORTUGAL Logo
6:30 p.m. - 8:15 p.m.
LHR
-
YUL
30h 45m
1 stop
C$ 674TAP AIR PORTUGAL
Wed, 18 Feb - Thu, 26 Feb
TAP AIR PORTUGAL Logo
9:45 p.m. - 9:35 p.m.
YUL
-
LHR
18h 50m
1 stop
TAP AIR PORTUGAL Logo
6:00 a.m. - 8:15 p.m.
LHR
-
YUL
19h 15m
1 stop
C$ 675TAP AIR PORTUGAL
Mon, 9 Feb - Wed, 18 Feb
TAP AIR PORTUGAL Logo
9:45 p.m. - 10:40 p.m.
YUL
-
LHR
19h 55m
1 stop
TAP AIR PORTUGAL Logo
8:15 a.m. - 8:15 p.m.
LHR
-
YUL
17h 00m
1 stop
C$ 678TAP AIR PORTUGAL
Mon, 16 Feb - Mon, 2 Mar
TAP AIR PORTUGAL Logo
10:45 p.m. - 3:35 p.m.
YUL
-
LHR
11h 50m
1 stop
TAP AIR PORTUGAL Logo
8:00 a.m. - 9:10 p.m.
LHR
-
YUL
18h 10m
1 stop
C$ 679TAP AIR PORTUGAL
Wed, 29 Apr - Mon, 11 May
TAP AIR PORTUGAL Logo
10:45 p.m. - 5:45 p.m.
YUL
-
LHR
14h 00m
1 stop
TAP AIR PORTUGAL Logo
1:45 p.m. - 9:10 p.m.
LHR
-
YUL
12h 25m
1 stop
C$ 682TAP AIR PORTUGAL
Wed, 29 Apr - Mon, 11 May
TAP AIR PORTUGAL Logo
10:45 p.m. - 5:45 p.m.
YUL
-
LHR
14h 00m
1 stop
TAP AIR PORTUGAL Logo
8:00 a.m. - 9:10 p.m.
LHR
-
YUL
18h 10m
1 stop
C$ 686TAP AIR PORTUGAL
Sun, 12 Apr - Mon, 20 Apr
TAP AIR PORTUGAL Logo
10:45 p.m. - 6:50 p.m.
YUL
-
LHR
15h 05m
1 stop
TAP AIR PORTUGAL Logo
8:00 a.m. - 9:10 p.m.
LHR
-
YUL
18h 10m
1 stop
C$ 687TAP AIR PORTUGAL
Sun, 12 Apr - Mon, 20 Apr

TAP AIR PORTUGAL flights from Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow Airport

Our best TAP AIR PORTUGAL deals on Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow Airport flight tickets
TAP AIR PORTUGAL
18 Feb
YUL9:45 p.m.Montreal Pierre Elliott Trudeau Intl
18h 50m
1 stop
LHR9:35 p.m.London Heathrow
2 Mar
LHR8:15 a.m.London Heathrow
17h 00m
1 stop
YUL8:15 p.m.Montreal Pierre Elliott Trudeau Intl
C$ 664
TAP AIR PORTUGAL
13 Apr
YUL10:45 p.m.Montreal Pierre Elliott Trudeau Intl
18h 15m
1 stop
LHR10:00 p.m.London Heathrow
21 Apr
LHR6:45 p.m.London Heathrow
31h 00m
1 stop
YUL8:45 p.m.Montreal Pierre Elliott Trudeau Intl
C$ 668
TAP AIR PORTUGAL
9 Feb
YUL9:45 p.m.Montreal Pierre Elliott Trudeau Intl
18h 50m
1 stop
LHR9:35 p.m.London Heathrow
18 Feb
LHR8:15 a.m.London Heathrow
17h 00m
1 stop
YUL8:15 p.m.Montreal Pierre Elliott Trudeau Intl
C$ 670

KLM flights from Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow Airport

Our best KLM deals on Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow Airport flight tickets
KLM
23 Feb
YUL12:52 p.m.Montreal Pierre Elliott Trudeau Intl
14h 53m
1 stop
LHR8:45 a.m.London Heathrow
2 Mar
LHR8:40 a.m.London Heathrow
13h 40m
1 stop
YUL5:20 p.m.Montreal Pierre Elliott Trudeau Intl
C$ 835
KLM
24 Feb
YUL12:52 p.m.Montreal Pierre Elliott Trudeau Intl
14h 53m
1 stop
LHR8:45 a.m.London Heathrow
2 Mar
LHR10:00 a.m.London Heathrow
12h 20m
1 stop
YUL5:20 p.m.Montreal Pierre Elliott Trudeau Intl
C$ 843
KLM
10 Feb
YUL12:54 p.m.Montreal Pierre Elliott Trudeau Intl
14h 51m
1 stop
LHR8:45 a.m.London Heathrow
17 Feb
LHR1:00 p.m.London Heathrow
15h 10m
1 stop
YUL11:10 p.m.Montreal Pierre Elliott Trudeau Intl
C$ 882

momondo Fare Finder

 
Customize your flight search to find flights from Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow Airport 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, momondo users made 96,600 searches. Data last updated 27 January 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

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Wed 18/2

9:45 p.m.-9:35 p.m.

1 stop18h 50m

London Heathrow

Mon 2/3

8:15 a.m.-8:15 p.m.

1 stop17h 00m

C$ 664

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Mon 13/4

10:45 p.m.-10:00 p.m.

1 stop18h 15m

London Heathrow

Tue 21/4

6:45 p.m.-8:45 p.m.

1 stop31h 00m

C$ 668

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Mon 9/2

9:45 p.m.-9:35 p.m.

1 stop18h 50m

London Heathrow

Wed 18/2

8:15 a.m.-8:15 p.m.

1 stop17h 00m

C$ 670

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Wed 18/2

9:45 p.m.-6:55 p.m.

1 stop16h 10m

London Heathrow

Thu 26/2

6:30 p.m.-8:15 p.m.

1 stop30h 45m

C$ 674

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Mon 9/2

9:45 p.m.-9:35 p.m.

1 stop18h 50m

London Heathrow

Wed 18/2

6:00 a.m.-8:15 p.m.

1 stop19h 15m

C$ 675

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Mon 16/2

9:45 p.m.-10:40 p.m.

1 stop19h 55m

London Heathrow

Mon 2/3

8:15 a.m.-8:15 p.m.

1 stop17h 00m

C$ 678

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Wed 29/4

10:45 p.m.-3:35 p.m.

1 stop11h 50m

London Heathrow

Mon 11/5

8:00 a.m.-9:10 p.m.

1 stop18h 10m

C$ 679

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Wed 29/4

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

1 stop14h 00m

London Heathrow

Mon 11/5

1:45 p.m.-9:10 p.m.

1 stop12h 25m

C$ 682

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Sun 12/4

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

1 stop14h 00m

London Heathrow

Mon 20/4

8:00 a.m.-9:10 p.m.

1 stop18h 10m

C$ 686

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Sun 12/4

10:45 p.m.-6:50 p.m.

1 stop15h 05m

London Heathrow

Mon 20/4

8:00 a.m.-9:10 p.m.

1 stop18h 10m

C$ 687

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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How to get the cheapest flight ticket from Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between Montreal Pierre Elliott Trudeau Intl Airport and London Heathrow Airport?

What is the cheapest month to fly to London Heathrow Airport?

The month of November is, on average, the cheapest month to fly to London Heathrow Airport from Montreal Pierre Elliott Trudeau Intl Airport, with most prices found around C$ 859. If you aren’t able to travel to London Heathrow Airport during the month of November, then flying in May is also cheap. Prices for this month can be found on momondo for an average of C$ 906.

What is the cheapest day to depart on your flight to London Heathrow Airport?

According to our data, Sunday is the cheapest day to fly to London Heathrow Airport from Montreal Pierre Elliott Trudeau Intl Airport. The lowest ticket price found for a Sunday departure recently was C$ 1,069. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. When flying out on a Tuesday, the most expensive travel day of the week, you can expect to see flight prices from Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow Airport for around C$ 1,188.

What is the cheapest time of day to depart on your flight to London Heathrow Airport?

Our data shows that the cheapest Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow Airport flights are usually those with departure times in the afternoon. Our users have found flights to London Heathrow Airport in the afternoon for as low as C$ 1,073. In the evening is when there is more demand to fly to London Heathrow Airport, so prices are often more expensive at around C$ 1,159 per ticket.

What is the cheapest Montreal Pierre Elliott Trudeau Intl to London Heathrow flight route?

Fly from Montreal Pierre Elliott Trudeau Intl to London Heathrow for the best Montreal Pierre Elliott Trudeau Intl - London Heathrow flight prices

How far in advance should I book a flight to London Heathrow Airport?

You are more likely to see cheaper flights to London Heathrow Airport from Montreal Pierre Elliott Trudeau Intl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to London Heathrow Airport for around C$ 1,001 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London Heathrow Airport from Montreal Pierre Elliott Trudeau Intl Airport for as low as C$ 897 on momondo.

What cabin class options are available on Montreal Pierre Elliott Trudeau Intl to London Heathrow flights?

There are 3 cabin classes available to choose from on Montreal Pierre Elliott Trudeau Intl to London Heathrow flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow Airport flights?

You could potentially save up to 31% on your flight if you consider stops on a Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow Airport flight.

How have Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow Airport flight prices changed over time?

As of January 2026, prices for Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow Airport flights are approximately 29% more expensive when compared to flights at the same time last year.

When to book flights from Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow Airport (YUL to LHR) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow Airport

Best price found

C$ 846

Fastest flight time

6h 35m

Direct flights

Every day
The best one-way flight to London Heathrow Airport from Montreal Pierre Elliott Trudeau Intl Airport in the past 72 hours is C$ 846. The best round-trip flight deal from Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow Airport found on momondo in the last 72 hours is C$ 911.
The fastest flight from Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow Airport takes 6h 35m
Direct flights go from Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow Airport every day.
Search flight deals

  • How far is Montreal Pierre Elliott Trudeau Intl to London Heathrow by plane?

    Montreal Pierre Elliott Trudeau Intl and London Heathrow are 5212.1 km apart from one another. Flights usually cover this in 6h 35m, depending on flying conditions and air traffic around both airports.

  • When did momondo last update prices for flights from Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow Airport?

    Prices for flights from Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow Airport?

  • How old do you have to be to fly from Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow Airport.

  • What documentation or ID do you need to fly to London Heathrow Airport?

    The travel and health documents required for your trip to London Heathrow Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at London Heathrow Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular plane model from Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow Airport?

  • What is the most popular airline from Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow Airport?

Best airlines flying from Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow Airport

Compare and see reviews for airlines that fly from Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow Airport with momondo
Airline
Rating
Free Cancellation
Price
TAP AIR PORTUGALPriceFrom C$ 675Free CancellationRating
7.1
2,130 reviews
Search TAP AIR PORTUGAL flights
Air CanadaPriceFrom C$ 748Free CancellationRating
7.1
10,666 reviews
Search Air Canada flights
British AirwaysPriceFrom C$ 750Free CancellationRating
6.7
7,704 reviews
Search British Airways flights
LufthansaPriceFrom C$ 752Free CancellationRating
6.8
7,749 reviews
Search Lufthansa flights
Air FrancePriceFrom C$ 759Free CancellationRating
7.4
1,528 reviews
Search Air France flights
American AirlinesPriceFrom C$ 771Free CancellationRating
7.2
11,201 reviews
Search American Airlines flights
Virgin AtlanticPriceFrom C$ 786Free CancellationRating
7.5
678 reviews
Search Virgin Atlantic flights
FinnairPriceFrom C$ 957Free CancellationRating
7.6
1,356 reviews
Search Finnair flights

  • Finnair Flights From Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow Airport

    The lowest priced Finnair flight from Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow Airport from the last 72 hours was C$ 957. Generally, Finnair has 3 flights on this route every week with an average price of C$ 1,058. Finnair is rated 7.6/10 by our users.

  • American Airlines Flights From Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow Airport

    Across 11,197 American Airlines reviews on momondo, the average score is 7.2/10. American Airlines flies from Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow Airport about 3 times each week, with ticket deals ranging from C$ 771 to C$ 1,036. Price data is based on momondo searches in the last 72 hours.

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Why use momondo?

Why should I use momondo to find a flight deal from Montreal to London?

It is quick and easy to find Montreal to London flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to London that suits you.

Can I find flights from Montreal to London with flexible booking policies on momondo?

Yes. All flights to London from Montreal on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Montreal to London?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to London from Montreal.

I’m not ready to book a flight from Montreal to London right now. Can momondo alert me if prices change?

Price alerts on flights to London from Montreal are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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