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Cheap flights from Montreal to London from $303

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 2/1. 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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0 bags

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Cheap round-trip flights

Enter your travel dates to find the best prices.
Air Canada Logo
6:30 pm - 9:20 amYUL-LHR
9h 50m1 stop
Air Canada Logo
9:00 am - 3:10 pmLHR-YUL
11h 10m1 stop
$582Air Canada
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Wed, Nov 26 - Sat, Dec 6
TAP AIR PORTUGAL Logo
9:45 pm - 9:35 pmYUL-LHR
18h 50m1 stop
TAP AIR PORTUGAL Logo
6:30 pm - 8:15 pmLHR-YUL
30h 45m1 stop
$585TAP AIR PORTUGAL
Find Deal
Sun, Nov 30 - Sat, Dec 6
Air Canada Logo
7:10 pm - 7:10 amYUL-LHR
7h 00mnonstop
Air Canada Logo
9:00 am - 3:10 pmLHR-YUL
11h 10m1 stop
$587Air Canada
Find Deal
Thu, Feb 5 - Thu, Feb 12
Lufthansa Logo
7:10 pm - 7:10 amYUL-LHR
7h 00mnonstop
Lufthansa Logo
8:45 am - 6:20 pmLHR-YUL
14h 35m1 stop
$588Lufthansa
Find Deal
Thu, Nov 27 - Sat, Dec 6
Lufthansa Logo
5:10 pm - 11:20 amYUL-LHR
13h 10m1 stop
Lufthansa Logo
7:40 am - 6:20 pmLHR-YUL
15h 40m1 stop
$594Lufthansa
Find Deal
Tue, Nov 25 - Mon, Dec 8
Multiple Airlines Logo
8:40 pm - 8:30 amYUL-LHR
6h 50mnonstop
Multiple Airlines Logo
4:10 pm - 6:45 pmLHR-YUL
7h 35mnonstop
$596Multiple Airlines
Find Deal
Tue, Feb 10 - Sat, Feb 21
Air Canada Logo
9:45 pm - 8:35 pmYUL-LHR
17h 50m1 stop
Air Canada Logo
12:00 pm - 8:54 pmLHR-YUL
13h 54m1 stop
$597Air Canada
Find Deal
Thu, Nov 27 - Sun, Dec 7
Air Canada Logo
7:10 pm - 7:10 amYUL-LHR
7h 00mnonstop
Air Canada Logo
1:25 pm - 4:10 pmLHR-YUL
7h 45mnonstop
$599Air Canada
Find Deal
Wed, Nov 26 - Sat, Dec 6
Air Canada Logo
7:30 pm - 7:10 amYUL-LHR
6h 40mnonstop
Air Canada Logo
12:00 pm - 8:54 pmLHR-YUL
13h 54m1 stop
$600Air Canada
Find Deal
Sat, Dec 6 - Fri, Dec 12
Lufthansa Logo
2:10 pm - 6:30 amYUL-LHR
11h 20m1 stop
Lufthansa Logo
7:40 am - 6:20 pmLHR-YUL
15h 40m1 stop
$601Lufthansa
Find Deal
Mon, Feb 2 - Mon, Feb 23

Air Canada flights from Montreal to London Heathrow Airport

Our best Air Canada deals on Montreal to London Heathrow Airport flight tickets
Air Canada
Nov 26
YUL6:30 pmMontreal Pierre Elliott Trudeau Intl
9h 50m
1 stop
LHR9:20 amLondon Heathrow
Dec 6
LHR9:00 amLondon Heathrow
11h 10m
1 stop
YUL3:10 pmMontreal Pierre Elliott Trudeau Intl
$582
Find similar
Air Canada
Nov 19
YUL4:50 pmMontreal Pierre Elliott Trudeau Intl
11h 30m
1 stop
LHR9:20 amLondon Heathrow
Nov 24
LHR6:00 amLondon Heathrow
12h 45m
1 stop
YUL1:45 pmMontreal Pierre Elliott Trudeau Intl
$585
Find similar
Air Canada
Nov 17
YUL2:00 pmMontreal Pierre Elliott Trudeau Intl
11h 30m
1 stop
LHR6:30 amLondon Heathrow
Nov 24
LHR9:00 amLondon Heathrow
11h 10m
1 stop
YUL3:10 pmMontreal Pierre Elliott Trudeau Intl
$586
Find similar

American Airlines flights from Montreal to London Heathrow Airport

Our best American Airlines deals on Montreal to London Heathrow Airport flight tickets
American Airlines
Feb 5
YUL8:40 pmMontreal Pierre Elliott Trudeau Intl
6h 50m
LHR8:30 amLondon Heathrow
Feb 12
LHR4:10 pmLondon Heathrow
7h 35m
YUL6:45 pmMontreal Pierre Elliott Trudeau Intl
$621
Find similar
American Airlines
Feb 5
YUL8:40 pmMontreal Pierre Elliott Trudeau Intl
6h 50m
LHR8:30 amLondon Heathrow
Feb 12
LHR4:10 pmLondon Heathrow
7h 35m
YUL6:45 pmMontreal Pierre Elliott Trudeau Intl
$622
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 November 13, 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 11/26

6:30 pm-9:20 am

1 stop9h 50m

London Heathrow

Sat 12/6

9:00 am-3:10 pm

1 stop11h 10m

$582

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Sun 11/30

9:45 pm-9:35 pm

1 stop18h 50m

London Heathrow

Sat 12/6

6:30 pm-8:15 pm

1 stop30h 45m

$585

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Thu 2/5

7:10 pm-7:10 am

Nonstop7h 00m

London Heathrow

Thu 2/12

9:00 am-3:10 pm

1 stop11h 10m

$587

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Thu 11/27

7:10 pm-7:10 am

Nonstop7h 00m

London Heathrow

Sat 12/6

8:45 am-6:20 pm

1 stop14h 35m

$588

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Tue 11/25

5:10 pm-11:20 am

1 stop13h 10m

London Heathrow

Mon 12/8

7:40 am-6:20 pm

1 stop15h 40m

$594

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Tue 2/10

8:40 pm-8:30 am

Nonstop6h 50m

London Heathrow

Sat 2/21

4:10 pm-6:45 pm

Nonstop7h 35m

$596

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Thu 11/27

9:45 pm-8:35 pm

1 stop17h 50m

London Heathrow

Sun 12/7

12:00 pm-8:54 pm

1 stop13h 54m

$597

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Wed 11/26

7:10 pm-7:10 am

Nonstop7h 00m

London Heathrow

Sat 12/6

1:25 pm-4:10 pm

Nonstop7h 45m

$599

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Sat 12/6

7:30 pm-7:10 am

Nonstop6h 40m

London Heathrow

Fri 12/12

12:00 pm-8:54 pm

1 stop13h 54m

$600

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Mon 2/2

2:10 pm-6:30 am

1 stop11h 20m

London Heathrow

Mon 2/23

7:40 am-6:20 pm

1 stop15h 40m

$601

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 $656. If you’re not able to fly to London Heathrow Airport in November, then October is your next best option. Flight prices from Montreal to London Heathrow Airport during October average around $667.

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

Our data shows that Sunday is the least expensive day to fly to London Heathrow Airport. Tickets to fly out on this day can be as low as $803. The most expensive day to fly to London Heathrow Airport is Friday, with ticket prices averaging around $924.

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 $738 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 $664 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 45% 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 November 2025, prices for Montreal to London Heathrow Airport flights are approximately 1% 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

$703

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 $703. The best round-trip flight deal from Montreal to London Heathrow Airport found on momondo in the last 72 hours is $716.
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 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 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 $543Free CancellationRating
7.1
10,448 reviews
Search Air Canada flights
LufthansaPriceFrom $545Free CancellationRating
6.8
7,572 reviews
Search Lufthansa flights
American AirlinesPriceFrom $582Free CancellationRating
7.2
11,051 reviews
Search American Airlines flights
British AirwaysPriceFrom $588Free CancellationRating
6.7
7,518 reviews
Search British Airways flights

  • American Airlines Flights From Montreal to London Heathrow Airport

    Across 5 American Airlines flights from Montreal to London Heathrow Airport this week, the average price was $801, with the best American Airlines deals starting from $582 round-trip. 11,051 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 $543 round-trip, depending on your selected dates, with average Air Canada deals seen on momondo around $729. Air Canada operates 4 flights to London Heathrow Airport from Montreal in an average week. Users have rated it 7.1/10 across 10,448 reviews.

Traveling to a place near London?

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

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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