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Cheap flights from Montreal to London from £199

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 29/12. 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 return flights

SWISS Logo
18:35 - 13:00YUL-LHR
13h 25m2 stops
SWISS Logo
18:40 - 15:00LHR-YUL
25h 20m1 stop
£329SWISS
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Mon, 29 Sep - Mon, 6 Oct
TAP AIR PORTUGAL Logo
21:45 - 21:35YUL-LHR
18h 50m1 stop
TAP AIR PORTUGAL Logo
12:25 - 20:15LHR-YUL
12h 50m1 stop
£358TAP AIR PORTUGAL
Find Deal
Mon, 24 Nov - Fri, 5 Dec
Austrian Airlines Logo
18:35 - 08:20YUL-LHR
32h 45m1 stop
Austrian Airlines Logo
06:00 - 12:00LHR-YUL
35h 00m2 stops
£373Austrian Airlines
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Mon, 3 Nov - Thu, 6 Nov
Austrian Airlines Logo
18:45 - 08:20YUL-LHR
56h 35m2 stops
Austrian Airlines Logo
06:00 - 13:45LHR-YUL
12h 45m1 stop
£376Austrian Airlines
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Tue, 4 Nov - Sat, 8 Nov
Air Canada Logo
21:55 - 09:35YUL-LHR
6h 40mdirect
Air Canada Logo
06:50 - 11:35LHR-YUL
9h 45m1 stop
£385Air Canada
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Mon, 8 Sep - Sun, 14 Sep
Air Canada Logo
19:10 - 07:10YUL-LHR
7h 00mdirect
Air Canada Logo
06:00 - 13:45LHR-YUL
12h 45m1 stop
£385Air Canada
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Wed, 19 Nov - Mon, 24 Nov
Logo
19:10 - 07:10YUL-LHR
7h 00mdirect
Logo
06:00 - 15:15LHR-YUL
14h 15m1 stop
£386
Find Deal
Thu, 6 Nov - Tue, 11 Nov
Logo
17:10 - 10:00YUL-LHR
11h 50m1 stop
Logo
06:55 - 21:00LHR-YUL
19h 05m1 stop
£394
Find Deal
Mon, 22 Sep - Wed, 1 Oct
British Airways Logo
22:10 - 09:50YUL-LHR
6h 40mdirect
British Airways Logo
18:05 - 20:15LHR-YUL
7h 10mdirect
£399British Airways
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Wed, 1 Oct - Wed, 15 Oct
British Airways Logo
22:10 - 09:50YUL-LHR
6h 40mdirect
British Airways Logo
18:05 - 20:15LHR-YUL
7h 10mdirect
£400British Airways
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Wed, 1 Oct - Wed, 15 Oct

SWISS flights from Montreal to London Heathrow Airport

Our best SWISS deals on Montreal to London Heathrow Airport flight tickets
SWISS
29 Sept
YUL18:35Montreal Pierre Elliott Trudeau Intl
13h 25m
2 stops
LHR13:00London Heathrow
6 Oct
LHR18:40London Heathrow
25h 20m
1 stop
YUL15:00Montreal Pierre Elliott Trudeau Intl
£329
Find similar
SWISS
2 Nov
YUL20:15Montreal Pierre Elliott Trudeau Intl
39h 05m
2 stops
LHR16:20London Heathrow
5 Nov
LHR12:05London Heathrow
32h 05m
1 stop
YUL15:10Montreal Pierre Elliott Trudeau Intl
£360
Find similar
SWISS
4 Nov
YUL20:15Montreal Pierre Elliott Trudeau Intl
42h 00m
2 stops
LHR19:15London Heathrow
7 Nov
LHR12:05London Heathrow
32h 05m
1 stop
YUL15:10Montreal Pierre Elliott Trudeau Intl
£366
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
24 Nov
YUL21:45Montreal Pierre Elliott Trudeau Intl
18h 50m
1 stop
LHR21:35London Heathrow
5 Dec
LHR12:25London Heathrow
12h 50m
1 stop
YUL20:15Montreal Pierre Elliott Trudeau Intl
£358
Find similar
TAP AIR PORTUGAL
24 Nov
YUL21:45Montreal Pierre Elliott Trudeau Intl
14h 45m
1 stop
LHR17:30London Heathrow
7 Dec
LHR06:00London Heathrow
19h 15m
1 stop
YUL20:15Montreal Pierre Elliott Trudeau Intl
£360
Find similar
TAP AIR PORTUGAL
3 Nov
YUL21:45Montreal Pierre Elliott Trudeau Intl
19h 55m
1 stop
LHR22:40London Heathrow
17 Nov
LHR06:00London Heathrow
19h 15m
1 stop
YUL20:15Montreal Pierre Elliott Trudeau Intl
£373
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 1 August 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

Mon 29/9

18:35-13:00

2 stops13h 25m

London Heathrow

Mon 6/10

18:40-15:00

1 stop25h 20m

£329

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Mon 24/11

21:45-21:35

1 stop18h 50m

London Heathrow

Fri 5/12

12:25-20:15

1 stop12h 50m

£358

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Mon 3/11

18:35-08:20

1 stop32h 45m

London Heathrow

Thu 6/11

06:00-12:00

2 stops35h 00m

£373

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Tue 4/11

18:45-08:20

2 stops56h 35m

London Heathrow

Sat 8/11

06:00-13:45

1 stop12h 45m

£376

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Mon 8/9

21:55-09:35

Nonstop6h 40m

London Heathrow

Sun 14/9

06:50-11:35

1 stop9h 45m

£385

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Wed 19/11

19:10-07:10

Nonstop7h 00m

London Heathrow

Mon 24/11

06:00-13:45

1 stop12h 45m

£385

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Thu 6/11

19:10-07:10

Nonstop7h 00m

London Heathrow

Tue 11/11

06:00-15:15

1 stop14h 15m

£386

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Mon 22/9

17:10-10:00

1 stop11h 50m

London Heathrow

Wed 1/10

06:55-21:00

1 stop19h 05m

£394

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Wed 1/10

22:10-09:50

Nonstop6h 40m

London Heathrow

Wed 15/10

18:05-20:15

Nonstop7h 10m

£399

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Wed 1/10

22:10-09:50

Nonstop6h 40m

London Heathrow

Wed 15/10

18:05-20:15

Nonstop7h 10m

£400

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, September 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 £493. The month of May is another great option to travel to London Heathrow Airport, with average flight prices from Montreal averaging around £508.

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 £649.

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 £542. 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 £607 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 £560 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 £506 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?

No. A direct flight is the cheapest option for a flight between Montreal to London Heathrow Airport.

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 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

£199

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 £199. The best return flight deal from Montreal to London Heathrow Airport found on momondo in the last 72 hours is £329.
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 35m.

  • 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 £410Free CancellationRating
7.1
9,851 reviews
Search Air Canada flights
British AirwaysPriceFrom £420Free CancellationRating
6.6
7,222 reviews
Search British Airways flights

  • Air Canada Flights From Montreal to London Heathrow Airport

    Air Canada operates around 12 flights from Montreal to London Heathrow Airport every week. The average price of these flights found in the last 72 hours has been £686, but momondo users have found Air Canada deals from Montreal to London Heathrow Airport from as low as £543 round-trip. Air Canada has been scored 7.1/10 in 9,851 reviews.

  • British Airways Flights From Montreal to London Heathrow Airport

    £555 is the best British Airways flight deal from Montreal to London Heathrow Airport found on momondo over the last 72 hours. The average British Airways ticket price found was closer to £891, however, with flight time and availability significantly affecting the price. British Airways (6.6/10 from 7,222 user reviews) flies into London Heathrow Airport from Montreal 4 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
Slough
Northampton
Southend-on-Sea
Maidstone
Swindon
Canterbury
Gatwick
Stratford-upon-Avon
Ipswich
Ilford
Dartford
Guildford
Colchester
Worthing
Hounslow
Swanage
Salisbury

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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