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Cheap flights from Montreal to London from C$ 318

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 to London departing on 21/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Montreal to London

Cheap round-trip flights

Enter your travel dates to find the best prices.
TAP AIR PORTUGAL Logo
10:45 p.m. - 6:55 p.m.
YUL
-
LHR
16h 10m
1 stop
TAP AIR PORTUGAL Logo
11:20 a.m. - 8:45 p.m.
LHR
-
YUL
14h 25m
1 stop
C$ 711TAP AIR PORTUGAL
Fri, 20 Mar - Wed, 8 Apr
TAP AIR PORTUGAL Logo
9:45 p.m. - 5:30 p.m.
YUL
-
LHR
14h 45m
1 stop
TAP AIR PORTUGAL Logo
4:30 p.m. - 8:15 p.m.
LHR
-
YUL
32h 45m
1 stop
C$ 712TAP AIR PORTUGAL
Sun, 15 Feb - Sun, 22 Feb
TAP AIR PORTUGAL Logo
9:45 p.m. - 6:55 p.m.
YUL
-
LHR
16h 10m
1 stop
TAP AIR PORTUGAL Logo
4:30 p.m. - 8:15 p.m.
LHR
-
YUL
32h 45m
1 stop
C$ 714TAP AIR PORTUGAL
Wed, 18 Feb - Sun, 22 Feb
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. - 8:45 p.m.
LHR
-
YUL
17h 45m
1 stop
C$ 716TAP AIR PORTUGAL
Wed, 6 May - Wed, 20 May
TAP AIR PORTUGAL Logo
10:45 p.m. - 3:35 p.m.
YUL
-
LHR
11h 50m
1 stop
TAP AIR PORTUGAL Logo
6:45 p.m. - 9:10 p.m.
LHR
-
YUL
31h 25m
1 stop
C$ 719TAP AIR PORTUGAL
Wed, 15 Apr - Sat, 25 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$ 725TAP AIR PORTUGAL
Mon, 13 Apr - Fri, 24 Apr
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$ 726TAP AIR PORTUGAL
Wed, 15 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
7:50 p.m. - 9:10 p.m.
LHR
-
YUL
30h 20m
1 stop
C$ 734TAP AIR PORTUGAL
Mon, 13 Apr - Sun, 26 Apr
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$ 736TAP AIR PORTUGAL
Wed, 15 Apr - Tue, 21 Apr
Lufthansa Logo
9:30 p.m. - 9:20 a.m.
YUL
-
LHR
30h 50m
1 stop
Lufthansa Logo
9:00 a.m. - 12:15 p.m.
LHR
-
YUL
32h 15m
1 stop
C$ 758Lufthansa
Thu, 12 Feb - Thu, 19 Feb

Air Canada flights from Montreal to London Heathrow Airport

Our best Air Canada deals on Montreal to London Heathrow Airport flight tickets
Air Canada
21 Jan
YUL6:25 p.m.Montreal Pierre Elliott Trudeau Intl
9h 55m
1 stop
LHR9:20 a.m.London Heathrow
27 Jan
LHR9:00 a.m.London Heathrow
11h 10m
1 stop
YUL3:10 p.m.Montreal Pierre Elliott Trudeau Intl
C$ 726
Air Canada
22 Apr
YUL10:10 p.m.Montreal Pierre Elliott Trudeau Intl
6h 50m
LHR10:00 a.m.London Heathrow
29 Apr
LHR8:40 a.m.London Heathrow
11h 20m
1 stop
YUL3:00 p.m.Montreal Pierre Elliott Trudeau Intl
C$ 768
Air Canada
19 Jan
YUL7:30 p.m.Montreal Pierre Elliott Trudeau Intl
6h 40m
LHR7:10 a.m.London Heathrow
26 Jan
LHR1:25 p.m.London Heathrow
7h 40m
YUL4:05 p.m.Montreal Pierre Elliott Trudeau Intl
C$ 783

British Airways flights from Montreal to London Heathrow Airport

Our best British Airways deals on Montreal to London Heathrow Airport flight tickets
British Airways
27 Jan
YUL8:40 p.m.Montreal Pierre Elliott Trudeau Intl
6h 50m
LHR8:30 a.m.London Heathrow
18 Mar
LHR4:30 p.m.London Heathrow
7h 35m
YUL8:05 p.m.Montreal Pierre Elliott Trudeau Intl
C$ 804
British Airways
27 Jan
YUL8:40 p.m.Montreal Pierre Elliott Trudeau Intl
6h 50m
LHR8:30 a.m.London Heathrow
18 Mar
LHR4:30 p.m.London Heathrow
7h 35m
YUL8:05 p.m.Montreal Pierre Elliott Trudeau Intl
C$ 805

momondo Fare Finder

 
Customize your flight search to find flights from Montreal 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 15 January 2026.
Use the filters below to find and compare flights from Montreal 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

Fri 20/3

10:45 p.m.-6:55 p.m.

1 stop16h 10m

London Heathrow

Wed 8/4

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

1 stop14h 25m

C$ 711

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Sun 15/2

9:45 p.m.-5:30 p.m.

1 stop14h 45m

London Heathrow

Sun 22/2

4:30 p.m.-8:15 p.m.

1 stop32h 45m

C$ 712

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

Sun 22/2

4:30 p.m.-8:15 p.m.

1 stop32h 45m

C$ 714

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Wed 6/5

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

1 stop14h 00m

London Heathrow

Wed 20/5

8:00 a.m.-8:45 p.m.

1 stop17h 45m

C$ 716

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Wed 15/4

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

1 stop11h 50m

London Heathrow

Sat 25/4

6:45 p.m.-9:10 p.m.

1 stop31h 25m

C$ 719

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Mon 13/4

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

1 stop15h 05m

London Heathrow

Fri 24/4

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

1 stop18h 10m

C$ 725

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Wed 15/4

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

1 stop14h 00m

London Heathrow

Mon 20/4

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

1 stop12h 25m

C$ 726

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Mon 13/4

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

1 stop15h 05m

London Heathrow

Sun 26/4

7:50 p.m.-9:10 p.m.

1 stop30h 20m

C$ 734

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Wed 15/4

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$ 736

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Thu 12/2

9:30 p.m.-9:20 a.m.

1 stop30h 50m

London Heathrow

Thu 19/2

9:00 a.m.-12:15 p.m.

1 stop32h 15m

C$ 758

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to London from

How to get the cheapest flight ticket from Montreal 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 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, with most prices found around C$ 884. 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$ 920.

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. The lowest ticket price found for a Sunday departure recently was C$ 1,089. 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 to London Heathrow Airport for around C$ 1,210.

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

Our data shows that the cheapest Montreal 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$ 1,082. In the evening is when there is more demand to fly to London Heathrow Airport, so prices are often more expensive at around C$ 1,180 per ticket.

What is the cheapest Montreal to London Heathrow flight route?

Fly from Montreal Pierre Elliott Trudeau Intl to London Heathrow for the best Montreal - 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 when booking weeks ahead of your departure date. In general, you can expect to find flights to London Heathrow Airport for around C$ 1,017 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 for as low as C$ 909 on momondo.

What cabin class options are available on Montreal to London Heathrow flights?

There are 3 cabin classes available to choose from on Montreal 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 to London Heathrow Airport flights?

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

How have Montreal to London Heathrow Airport flight prices changed over time?

As of January 2026, prices for Montreal to London Heathrow Airport flights are approximately 116% more expensive when compared to flights at the same time last year.

When to book flights from Montreal to London Heathrow Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Montreal 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 to London Heathrow Airport (YMQ to LHR) flight deals and tips

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

Best price found

C$ 890

Fastest flight time

6h 40m

Direct flights

Every day
The best one-way flight to London Heathrow Airport from Montreal in the past 72 hours is C$ 890. The best round-trip flight deal from Montreal to London Heathrow Airport found on momondo in the last 72 hours is C$ 965.
The fastest flight from Montreal to London Heathrow Airport takes 6h 40m
Direct flights go from Montreal to London Heathrow Airport every day.
Search flight deals

  • How far is Montreal to London Heathrow by plane?

    A flight from Montreal to London Heathrow will travel around 5197.8 km. In terms of flight time, this usually takes a little over 6h 40m.

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

    Prices for flights from Montreal to London Heathrow Airport are updated daily.

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

  • How old do you have to be to fly from Montreal to London Heathrow Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Montreal to London Heathrow Airport.

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

    The travel and health documents you'll need for your trip to London Heathrow Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at London Heathrow Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Montreal to London Heathrow Airport?

  • What is the most popular airline from Montreal to London Heathrow Airport?

Best airlines flying from Montreal to London Heathrow Airport

Compare and see reviews for airlines that fly from Montreal to London Heathrow Airport with momondo
Airline
Rating
Free Cancellation
Price
Air FrancePriceFrom C$ 612Free CancellationRating
7.4
1,522 reviews
Search Air France flights
TAP AIR PORTUGALPriceFrom C$ 684Free CancellationRating
7.1
2,121 reviews
Search TAP AIR PORTUGAL flights
Air TransatPriceFrom C$ 697Free CancellationRating
7.7
495 reviews
Search Air Transat flights
Air CanadaPriceFrom C$ 761Free CancellationRating
7.1
10,623 reviews
Search Air Canada flights
British AirwaysPriceFrom C$ 761Free CancellationRating
6.7
7,678 reviews
Search British Airways flights
LufthansaPriceFrom C$ 762Free CancellationRating
6.8
7,718 reviews
Search Lufthansa flights
American AirlinesPriceFrom C$ 784Free CancellationRating
7.2
11,134 reviews
Search American Airlines flights
Virgin AtlanticPriceFrom C$ 797Free CancellationRating
7.5
678 reviews
Search Virgin Atlantic flights
FinnairPriceFrom C$ 867Free CancellationRating
7.6
1,349 reviews
Search Finnair flights

  • Finnair Flights From Montreal to London Heathrow Airport

    Across 5 Finnair flights from Montreal to London Heathrow Airport this week, the average price was C$ 1,013, with the best Finnair deals starting from C$ 867 round-trip. 1,349 users have rated Finnair on momondo, with an average score of 7.6/10.

  • American Airlines Flights From Montreal to London Heathrow Airport

    Across 11,129 American Airlines reviews on momondo, the average score is 7.2/10. American Airlines flies from Montreal to London Heathrow Airport about 5 times each week, with ticket deals ranging from C$ 784 to C$ 1,058. Price data is based on momondo searches in the last 72 hours.

Travelling to a place near London?

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Dover

Why use momondo?

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

Finding the right flight to London from Montreal is quick and easy when you have a range of options in front of you, from reputable agents and recognizable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to London quick and easy, saving you time and money.

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

Yes. momondo enables you to select and highlight flights to London from Montreal with this policy.

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

momondo helps you find the best flight between Montreal and London by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

Yes. momondo can track prices for Montreal to London flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

An easier way to manage your London Heathrow Airport trip

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