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Cheap flights from Montreal to London from £223

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 16/11. 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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Cheap return flights

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TAP AIR PORTUGAL Logo
22:45 - 22:00YUL-LHR
18h 15m1 stop
TAP AIR PORTUGAL Logo
06:00 - 20:45LHR-YUL
19h 45m1 stop
£420TAP AIR PORTUGAL
Find Deal
Wed, 29 Apr - Wed, 20 May
TAP AIR PORTUGAL Logo
21:45 - 17:30YUL-LHR
14h 45m1 stop
TAP AIR PORTUGAL Logo
16:30 - 20:15LHR-YUL
32h 45m1 stop
£423TAP AIR PORTUGAL
Find Deal
Fri, 5 Dec - Sun, 14 Dec
Air Canada Logo
13:15 - 20:35YUL-LHR
26h 20m1 stop
Air Canada Logo
09:00 - 15:10LHR-YUL
11h 10m1 stop
£426Air Canada
Find Deal
Thu, 13 Nov - Wed, 19 Nov
Multiple Airlines Logo
13:15 - 20:35YUL-LHR
26h 20m1 stop
Multiple Airlines Logo
18:40 - 15:10LHR-YUL
25h 30m1 stop
£427Multiple Airlines
Find Deal
Thu, 27 Nov - Tue, 2 Dec
Air Canada Logo
21:30 - 20:35YUL-LHR
18h 05m1 stop
Air Canada Logo
09:00 - 15:10LHR-YUL
11h 10m1 stop
£428Air Canada
Find Deal
Thu, 13 Nov - Wed, 19 Nov
Multiple Airlines Logo
19:10 - 07:10YUL-LHR
7h 00mdirect
Multiple Airlines Logo
20:05 - 15:10LHR-YUL
24h 05m1 stop
£429Multiple Airlines
Find Deal
Thu, 27 Nov - Tue, 2 Dec
Air Canada Logo
19:10 - 07:10YUL-LHR
7h 00mdirect
Air Canada Logo
09:00 - 15:10LHR-YUL
11h 10m1 stop
£430Air Canada
Find Deal
Thu, 13 Nov - Wed, 19 Nov
Lufthansa Logo
19:10 - 07:10YUL-LHR
7h 00mdirect
Lufthansa Logo
06:35 - 18:20LHR-YUL
16h 45m1 stop
£448Lufthansa
Find Deal
Thu, 13 Nov - Wed, 19 Nov
Lufthansa Logo
19:10 - 07:10YUL-LHR
7h 00mdirect
Lufthansa Logo
08:45 - 18:20LHR-YUL
14h 35m1 stop
£450Lufthansa
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Fri, 28 Nov - Sun, 7 Dec
British Airways Logo
20:40 - 08:30YUL-LHR
6h 50mdirect
British Airways Logo
16:10 - 18:45LHR-YUL
7h 35mdirect
£463British Airways
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Mon, 24 Nov - Thu, 4 Dec

Air Canada flights from Montreal to London Heathrow Airport

Our best Air Canada deals on Montreal to London Heathrow Airport flight tickets
Air Canada
13 Nov
YUL13:15Montreal Pierre Elliott Trudeau Intl
26h 20m
1 stop
LHR20:35London Heathrow
19 Nov
LHR09:00London Heathrow
11h 10m
1 stop
YUL15:10Montreal Pierre Elliott Trudeau Intl
£426
Find similar
Air Canada
13 Nov
YUL21:30Montreal Pierre Elliott Trudeau Intl
18h 05m
1 stop
LHR20:35London Heathrow
19 Nov
LHR09:00London Heathrow
11h 10m
1 stop
YUL15:10Montreal Pierre Elliott Trudeau Intl
£428
Find similar
Air Canada
13 Nov
YUL19:10Montreal Pierre Elliott Trudeau Intl
7h 00m
LHR07:10London Heathrow
19 Nov
LHR09:00London Heathrow
11h 10m
1 stop
YUL15:10Montreal Pierre Elliott Trudeau Intl
£430
Find similar

TAP AIR PORTUGAL flights from Montreal to London Heathrow Airport

Our best TAP AIR PORTUGAL deals on Montreal to London Heathrow Airport flight tickets
TAP AIR PORTUGAL
29 Apr
YUL22:45Montreal Pierre Elliott Trudeau Intl
18h 15m
1 stop
LHR22:00London Heathrow
20 May
LHR06:00London Heathrow
19h 45m
1 stop
YUL20:45Montreal Pierre Elliott Trudeau Intl
£420
Find similar
TAP AIR PORTUGAL
5 Dec
YUL21:45Montreal Pierre Elliott Trudeau Intl
14h 45m
1 stop
LHR17:30London Heathrow
14 Dec
LHR16:30London Heathrow
32h 45m
1 stop
YUL20:15Montreal Pierre Elliott Trudeau Intl
£423
Find similar
TAP AIR PORTUGAL
30 Nov
YUL21:45Montreal Pierre Elliott Trudeau Intl
14h 45m
1 stop
LHR17:30London Heathrow
8 Dec
LHR08:15London Heathrow
17h 00m
1 stop
YUL20:15Montreal Pierre Elliott Trudeau Intl
£434
Find similar

momondo Fare Finder

 
Customise 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 279,928 searches. Data last updated 31 October 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 29/4

22:45-22:00

1 stop18h 15m

London Heathrow

Wed 20/5

06:00-20:45

1 stop19h 45m

£420

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Fri 5/12

21:45-17:30

1 stop14h 45m

London Heathrow

Sun 14/12

16:30-20:15

1 stop32h 45m

£423

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Thu 13/11

13:15-20:35

1 stop26h 20m

London Heathrow

Wed 19/11

09:00-15:10

1 stop11h 10m

£426

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Thu 27/11

13:15-20:35

1 stop26h 20m

London Heathrow

Tue 2/12

18:40-15:10

1 stop25h 30m

£427

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Thu 13/11

21:30-20:35

1 stop18h 05m

London Heathrow

Wed 19/11

09:00-15:10

1 stop11h 10m

£428

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Thu 27/11

19:10-07:10

Nonstop7h 00m

London Heathrow

Tue 2/12

20:05-15:10

1 stop24h 05m

£429

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Thu 13/11

19:10-07:10

Nonstop7h 00m

London Heathrow

Wed 19/11

09:00-15:10

1 stop11h 10m

£430

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Thu 13/11

19:10-07:10

Nonstop7h 00m

London Heathrow

Wed 19/11

06:35-18:20

1 stop16h 45m

£448

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Fri 28/11

19:10-07:10

Nonstop7h 00m

London Heathrow

Sun 7/12

08:45-18:20

1 stop14h 35m

£450

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Mon 24/11

20:40-08:30

Nonstop6h 50m

London Heathrow

Thu 4/12

16:10-18:45

Nonstop7h 35m

£463

Flights are sorted by cheapest return 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?

In general, November is the cheapest month to fly from Montreal to London Heathrow Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £507. The month of March is another great option to travel to London Heathrow Airport, with average flight prices from Montreal averaging around £525.

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

On average, the least expensive day to fly to London Heathrow Airport from Montreal is on a Sunday. momondo users have found tickets for Sunday departures for as low as £479. However, this price may fluctuate depending on the airline, the season, and holidays. Be sure to avoid booking your departure on a Saturday as prices are generally higher than usual. According to our data, the average ticket price to London Heathrow Airport on Saturday is £635.

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 afternoon. momondo users have found flights departing from Montreal to London Heathrow Airport in the afternoon for as low as £538. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are £609 on average. Flights to London Heathrow Airport from Montreal in the morning are generally more expensive because this time of day is more convenient for travellers’ schedules.

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 £562 when searching weeks before you fly. 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 £521 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 53% 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 October 2025, prices for Montreal to London Heathrow Airport flights are approximately 10% 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 return 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

£411

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 £411. The best return flight deal from Montreal to London Heathrow Airport found on momondo in the last 72 hours is £499.
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?

    A flight from Montreal to London Heathrow will travel around 3229.8 mi. A reasonable flight in good conditions will take 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 refresh 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 that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check 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 necessary travel and health documents for your London Heathrow Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking 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 £406Free CancellationRating
7.1
10,381 reviews
Search Air Canada flights
British AirwaysPriceFrom £418Free CancellationRating
6.7
7,487 reviews
Search British Airways flights
American AirlinesPriceFrom £557Free CancellationRating
7.2
11,035 reviews
Search American Airlines flights

  • American Airlines Flights From Montreal to London Heathrow Airport

    American Airlines operates around 2 flights from Montreal to London Heathrow Airport every week. The average price of these flights found in the last 72 hours has been £615, but momondo users have found American Airlines deals from Montreal to London Heathrow Airport from as low as £557 round-trip. American Airlines has been scored 7.2/10 in 11,035 reviews.

  • Air Canada Flights From Montreal to London Heathrow Airport

    £406 is the best Air Canada flight deal from Montreal to London Heathrow Airport found on momondo over the last 72 hours. The average Air Canada ticket price found was closer to £506, however, with flight time and availability significantly affecting the price. Air Canada (7.1/10 from 10,381 user reviews) flies into London Heathrow Airport from Montreal 2 times in an average week so prices can vary.

Travelling to a place near London?

Book flights to London if you plan to visit one of these locations
Eastbourne
Milton Keynes
Luton
Gatwick
Maidstone
Slough
Northampton
Swindon
Canterbury
Stratford-upon-Avon
Southend-on-Sea
Ipswich
Ilford
Poole
Guildford
Swanage
Colchester
Dover
Hayes
Chelmsford

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to London from Montreal.

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

momondo does allow users to show only those flights to London from Montreal which offer a flexible booking policy as well as other useful filters and features.

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?

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.

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