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Cheap flights from Montreal to London from $264

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 10/15. 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

Logo
9:55 pm - 9:35 amYUL-LHR
6h 40mnonstop
Logo
7:40 am - 7:20 pmLHR-YUL
15h 40m1 stop
$534
Find Deal
Wed, Oct 15 - Wed, Oct 29
Logo
6:55 pm - 6:30 amYUL-LHR
6h 35mnonstop
Logo
7:40 am - 7:20 pmLHR-YUL
15h 40m1 stop
$535
Find Deal
Sun, Oct 19 - Wed, Oct 29
Air Canada Logo
4:30 pm - 10:00 amYUL-LHR
12h 30m1 stop
Air Canada Logo
8:40 am - 3:00 pmLHR-YUL
11h 20m1 stop
$537Air Canada
Find Deal
Fri, Oct 3 - Wed, Oct 8
Air Canada Logo
6:55 pm - 6:30 amYUL-LHR
6h 35mnonstop
Air Canada Logo
6:50 am - 11:35 amLHR-YUL
9h 45m1 stop
$539Air Canada
Find Deal
Wed, Oct 1 - Sun, Oct 5
Lufthansa Logo
8:15 pm - 11:50 amYUL-LHR
10h 35m1 stop
Lufthansa Logo
1:45 pm - 9:00 pmLHR-YUL
12h 15m1 stop
$540Lufthansa
Find Deal
Thu, Oct 2 - Wed, Oct 8
Lufthansa Logo
6:55 pm - 6:30 amYUL-LHR
6h 35mnonstop
Lufthansa Logo
7:25 am - 9:00 pmLHR-YUL
18h 35m1 stop
$546Lufthansa
Find Deal
Sun, Oct 12 - Fri, Oct 17
British Airways Logo
10:10 pm - 9:50 amYUL-LHR
6h 40mnonstop
British Airways Logo
6:05 pm - 8:15 pmLHR-YUL
7h 10mnonstop
$551British Airways
Find Deal
Wed, Oct 8 - Thu, Oct 9
British Airways Logo
10:10 pm - 9:50 amYUL-LHR
6h 40mnonstop
British Airways Logo
6:05 pm - 8:15 pmLHR-YUL
7h 10mnonstop
$569British Airways
Find Deal
Wed, Oct 1 - Fri, Oct 17
American Airlines Logo
5:15 pm - 11:05 amYUL-LHR
12h 50m1 stop
American Airlines Logo
6:05 pm - 8:15 pmLHR-YUL
7h 10mnonstop
$577American Airlines
Find Deal
Wed, Oct 1 - Wed, Oct 15
American Airlines Logo
4:09 pm - 8:05 amYUL-LHR
10h 56m1 stop
American Airlines Logo
6:05 pm - 8:15 pmLHR-YUL
7h 10mnonstop
$610American Airlines
Find Deal
Thu, Sep 25 - Thu, Oct 9

American Airlines flights from Montreal to London Heathrow Airport

Our best American Airlines deals on Montreal to London Heathrow Airport flight tickets
American Airlines
Oct 1
YUL5:15 pmMontreal Pierre Elliott Trudeau Intl
12h 50m
1 stop
LHR11:05 amLondon Heathrow
Oct 15
LHR6:05 pmLondon Heathrow
7h 10m
YUL8:15 pmMontreal Pierre Elliott Trudeau Intl
$577
Find similar
American Airlines
Sep 25
YUL4:09 pmMontreal Pierre Elliott Trudeau Intl
10h 56m
1 stop
LHR8:05 amLondon Heathrow
Oct 9
LHR6:05 pmLondon Heathrow
7h 10m
YUL8:15 pmMontreal Pierre Elliott Trudeau Intl
$610
Find similar
American Airlines
Dec 25
YUL8:40 pmMontreal Pierre Elliott Trudeau Intl
6h 50m
LHR8:30 amLondon Heathrow
Jan 13
LHR4:10 pmLondon Heathrow
7h 35m
YUL6:45 pmMontreal Pierre Elliott Trudeau Intl
$618
Find similar

Air Canada flights from Montreal to London Heathrow Airport

Our best Air Canada deals on Montreal to London Heathrow Airport flight tickets
Air Canada
Oct 3
YUL4:30 pmMontreal Pierre Elliott Trudeau Intl
12h 30m
1 stop
LHR10:00 amLondon Heathrow
Oct 8
LHR8:40 amLondon Heathrow
11h 20m
1 stop
YUL3:00 pmMontreal Pierre Elliott Trudeau Intl
$537
Find similar
Air Canada
Oct 1
YUL6:55 pmMontreal Pierre Elliott Trudeau Intl
6h 35m
LHR6:30 amLondon Heathrow
Oct 5
LHR6:50 amLondon Heathrow
9h 45m
1 stop
YUL11:35 amMontreal Pierre Elliott Trudeau Intl
$539
Find similar
Air Canada
Oct 19
YUL5:10 pmMontreal Pierre Elliott Trudeau Intl
10h 25m
1 stop
LHR8:35 amLondon Heathrow
Nov 2
LHR5:50 amLondon Heathrow
9h 55m
1 stop
YUL11:45 amMontreal Pierre Elliott Trudeau Intl
$545
Find similar

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 832,500 searches. Data last updated August 18, 2025.
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

Wed 10/15

9:55 pm-9:35 am

Nonstop6h 40m

London Heathrow

Wed 10/29

7:40 am-7:20 pm

1 stop15h 40m

$534

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Sun 10/19

6:55 pm-6:30 am

Nonstop6h 35m

London Heathrow

Wed 10/29

7:40 am-7:20 pm

1 stop15h 40m

$535

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Fri 10/3

4:30 pm-10:00 am

1 stop12h 30m

London Heathrow

Wed 10/8

8:40 am-3:00 pm

1 stop11h 20m

$537

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Wed 10/1

6:55 pm-6:30 am

Nonstop6h 35m

London Heathrow

Sun 10/5

6:50 am-11:35 am

1 stop9h 45m

$539

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Thu 10/2

8:15 pm-11:50 am

1 stop10h 35m

London Heathrow

Wed 10/8

1:45 pm-9:00 pm

1 stop12h 15m

$540

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Sun 10/12

6:55 pm-6:30 am

Nonstop6h 35m

London Heathrow

Fri 10/17

7:25 am-9:00 pm

1 stop18h 35m

$546

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Wed 10/8

10:10 pm-9:50 am

Nonstop6h 40m

London Heathrow

Thu 10/9

6:05 pm-8:15 pm

Nonstop7h 10m

$551

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Wed 10/1

10:10 pm-9:50 am

Nonstop6h 40m

London Heathrow

Fri 10/17

6:05 pm-8:15 pm

Nonstop7h 10m

$569

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Wed 10/1

5:15 pm-11:05 am

1 stop12h 50m

London Heathrow

Wed 10/15

6:05 pm-8:15 pm

Nonstop7h 10m

$577

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Thu 9/25

4:09 pm-8:05 am

1 stop10h 56m

London Heathrow

Thu 10/9

6:05 pm-8:15 pm

Nonstop7h 10m

$610

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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 September is, on average, the cheapest month to fly to London Heathrow Airport from Montreal, with most prices found around $661. If you’re not able to fly to London Heathrow Airport in September, then May is your next best option. Flight prices from Montreal to London Heathrow Airport during May average around $668.

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

Our data shows that Saturday is the least expensive day to fly to London Heathrow Airport. Tickets to fly out on this day can be as low as $799. The most expensive day to fly to London Heathrow Airport is Friday, with ticket prices averaging around $922.

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

According to our data, the cheapest time of day to fly to London Heathrow Airport is in the morning. momondo users have found flights departing from Montreal to London Heathrow Airport in the morning for as low as $668. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights in the evening are often more expensive with an average ticket price of $869.

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 $741 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 $678 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 4% 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 August 2025, prices for Montreal to London Heathrow Airport flights are approximately 33% cheaper 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

$264

Fastest flight time

6h 35m

Direct flights

Every day
The best one-way flight to London Heathrow Airport from Montreal in the past 72 hours is $264. The best round-trip flight deal from Montreal to London Heathrow Airport found on momondo in the last 72 hours is $534.
The fastest flight from Montreal to London Heathrow Airport takes 6h 35m
Direct flights go from Montreal to London Heathrow Airport every day.
Search flight deals

  • How far is Montreal to London Heathrow by plane?

    London Heathrow is 3229.8 mi away from Montreal. By plane, this route typically takes 6h 35m.

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

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

  • 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 CanadaPriceFrom $544Free CancellationRating
7.1
9,992 reviews
Search Air Canada flights
LufthansaPriceFrom $545Free CancellationRating
6.8
7,330 reviews
Search Lufthansa flights
British AirwaysPriceFrom $629Free CancellationRating
6.6
7,277 reviews
Search British Airways flights
American AirlinesPriceFrom $690Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights

  • American Airlines Flights From Montreal to London Heathrow Airport

    Across 7 American Airlines flights from Montreal to London Heathrow Airport this week, the average price was $824, with the best American Airlines deals starting from $690 round-trip. 10,000 users have rated American Airlines on momondo, with an average score of 7.2/10.

  • Air Canada Flights From Montreal to London Heathrow Airport

    Air Canada is also a popular choice for this route. Air Canada flight deals for Montreal to London Heathrow Airport start from as low as $544 round-trip, depending on your selected dates, with average Air Canada deals seen on momondo around $731. Air Canada operates 12 flights to London Heathrow Airport from Montreal in an average week. Users have rated it 7.1/10 across 9,992 reviews.

Traveling to a place near London?

Book flights to London if you plan to visit one of these locations
Hounslow
Gatwick
Dover
Slough
Luton
Guildford
Milton Keynes
Dartford
Crawley
Hayes
Chelmsford
Stansted
Salisbury
Brentwood
Ilford
Swindon
Colchester
Folkestone
Stratford-upon-Avon
Watford

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Montreal to London for 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?

momondo provides multiple filters to help you find the best flight to London from Montreal. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Of course. momondo tracks the price of Montreal to London flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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