Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from Montreal to London from C$ 364

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 11/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names, great deals

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Early arrival? Instantly customize your results

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Montreal to London

Cheap round-trip flights

Air Canada Logo
9:30 p.m. - 8:35 p.m.YUL-LHR
18h 05m1 stop
Air Canada Logo
6:00 a.m. - 1:45 p.m.LHR-YUL
12h 45m1 stop
C$ 736Air Canada
Find Deal
Wed, 19 Nov - Mon, 24 Nov
Logo
6:30 p.m. - 8:35 p.m.YUL-LHR
21h 05m1 stop
Logo
8:45 a.m. - 6:20 p.m.LHR-YUL
14h 35m1 stop
C$ 737
Find Deal
Wed, 19 Nov - Mon, 24 Nov
Lufthansa Logo
5:10 p.m. - 11:20 a.m.YUL-LHR
13h 10m1 stop
Lufthansa Logo
11:10 a.m. - 6:20 p.m.LHR-YUL
12h 10m1 stop
C$ 744Lufthansa
Find Deal
Thu, 20 Nov - Mon, 24 Nov
Lufthansa Logo
2:00 p.m. - 6:30 a.m.YUL-LHR
11h 30m1 stop
Lufthansa Logo
8:45 a.m. - 6:20 p.m.LHR-YUL
14h 35m1 stop
C$ 745Lufthansa
Find Deal
Thu, 13 Nov - Mon, 24 Nov
American Airlines Logo
9:40 p.m. - 8:30 a.m.YUL-LHR
6h 50mdirect
American Airlines Logo
4:10 p.m. - 6:45 p.m.LHR-YUL
7h 35mdirect
C$ 755American Airlines
Find Deal
Sun, 26 Oct - Sat, 8 Nov
SWISS Logo
4:40 p.m. - 7:55 a.m.YUL-LHR
10h 15m1 stop
SWISS Logo
8:05 p.m. - 3:10 p.m.LHR-YUL
24h 05m1 stop
C$ 759SWISS
Find Deal
Thu, 23 Oct - Tue, 4 Nov
British Airways Logo
8:40 p.m. - 8:30 a.m.YUL-LHR
6h 50mdirect
British Airways Logo
4:10 p.m. - 6:45 p.m.LHR-YUL
7h 35mdirect
C$ 760British Airways
Find Deal
Tue, 11 Nov - Fri, 21 Nov
SWISS Logo
4:45 p.m. - 8:05 a.m.YUL-LHR
10h 20m1 stop
SWISS Logo
6:00 a.m. - 7:22 p.m.LHR-YUL
18h 22m2 stops
C$ 767SWISS
Find Deal
Tue, 11 Nov - Mon, 17 Nov
British Airways Logo
8:30 p.m. - 8:20 a.m.YUL-LHR
6h 50mdirect
British Airways Logo
4:10 p.m. - 6:45 p.m.LHR-YUL
7h 35mdirect
C$ 778British Airways
Find Deal
Fri, 14 Nov - Fri, 21 Nov
American Airlines Logo
8:30 p.m. - 8:20 a.m.YUL-LHR
6h 50mdirect
American Airlines Logo
4:10 p.m. - 6:45 p.m.LHR-YUL
7h 35mdirect
C$ 781American Airlines
Find Deal
Fri, 14 Nov - Fri, 21 Nov

SWISS flights from Montreal to London Heathrow Airport

Our best SWISS deals on Montreal to London Heathrow Airport flight tickets
SWISS
23 Oct
YUL4:40 p.m.Montreal Pierre Elliott Trudeau Intl
10h 15m
1 stop
LHR7:55 a.m.London Heathrow
4 Nov
LHR8:05 p.m.London Heathrow
24h 05m
1 stop
YUL3:10 p.m.Montreal Pierre Elliott Trudeau Intl
C$ 759
Find similar
SWISS
11 Nov
YUL4:45 p.m.Montreal Pierre Elliott Trudeau Intl
10h 20m
1 stop
LHR8:05 a.m.London Heathrow
17 Nov
LHR6:00 a.m.London Heathrow
18h 22m
2 stops
YUL7:22 p.m.Montreal Pierre Elliott Trudeau Intl
C$ 767
Find similar
SWISS
8 Oct
YUL6:35 p.m.Montreal Pierre Elliott Trudeau Intl
13h 25m
2 stops
LHR1:00 p.m.London Heathrow
14 Oct
LHR8:45 a.m.London Heathrow
11h 15m
1 stop
YUL3:00 p.m.Montreal Pierre Elliott Trudeau Intl
C$ 798
Find similar

British Airways flights from Montreal to London Heathrow Airport

Our best British Airways deals on Montreal to London Heathrow Airport flight tickets
British Airways
11 Nov
YUL8:40 p.m.Montreal Pierre Elliott Trudeau Intl
6h 50m
LHR8:30 a.m.London Heathrow
21 Nov
LHR4:10 p.m.London Heathrow
7h 35m
YUL6:45 p.m.Montreal Pierre Elliott Trudeau Intl
C$ 760
Find similar
British Airways
14 Nov
YUL8:30 p.m.Montreal Pierre Elliott Trudeau Intl
6h 50m
LHR8:20 a.m.London Heathrow
21 Nov
LHR4:10 p.m.London Heathrow
7h 35m
YUL6:45 p.m.Montreal Pierre Elliott Trudeau Intl
C$ 778
Find similar
British Airways
13 Nov
YUL8:40 p.m.Montreal Pierre Elliott Trudeau Intl
6h 50m
LHR8:30 a.m.London Heathrow
26 Nov
LHR4:10 p.m.London Heathrow
7h 35m
YUL6:45 p.m.Montreal Pierre Elliott Trudeau Intl
C$ 784
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 96,600 searches. Data last updated 28 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

Wed 19/11

9:30 p.m.-8:35 p.m.

1 stop18h 05m

London Heathrow

Mon 24/11

6:00 a.m.-1:45 p.m.

1 stop12h 45m

C$ 736

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Wed 19/11

6:30 p.m.-8:35 p.m.

1 stop21h 05m

London Heathrow

Mon 24/11

8:45 a.m.-6:20 p.m.

1 stop14h 35m

C$ 737

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Thu 20/11

5:10 p.m.-11:20 a.m.

1 stop13h 10m

London Heathrow

Mon 24/11

11:10 a.m.-6:20 p.m.

1 stop12h 10m

C$ 744

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Thu 13/11

2:00 p.m.-6:30 a.m.

1 stop11h 30m

London Heathrow

Mon 24/11

8:45 a.m.-6:20 p.m.

1 stop14h 35m

C$ 745

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Sun 26/10

9:40 p.m.-8:30 a.m.

Nonstop6h 50m

London Heathrow

Sat 8/11

4:10 p.m.-6:45 p.m.

Nonstop7h 35m

C$ 755

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Thu 23/10

4:40 p.m.-7:55 a.m.

1 stop10h 15m

London Heathrow

Tue 4/11

8:05 p.m.-3:10 p.m.

1 stop24h 05m

C$ 759

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Tue 11/11

8:40 p.m.-8:30 a.m.

Nonstop6h 50m

London Heathrow

Fri 21/11

4:10 p.m.-6:45 p.m.

Nonstop7h 35m

C$ 760

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Tue 11/11

4:45 p.m.-8:05 a.m.

1 stop10h 20m

London Heathrow

Mon 17/11

6:00 a.m.-7:22 p.m.

2 stops18h 22m

C$ 767

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Fri 14/11

8:30 p.m.-8:20 a.m.

Nonstop6h 50m

London Heathrow

Fri 21/11

4:10 p.m.-6:45 p.m.

Nonstop7h 35m

C$ 778

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Fri 14/11

8:30 p.m.-8:20 a.m.

Nonstop6h 50m

London Heathrow

Fri 21/11

4:10 p.m.-6:45 p.m.

Nonstop7h 35m

C$ 781

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 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 C$ 918. If you aren’t able to travel to London Heathrow Airport during the month of September, then flying in May is also cheap. Prices for this month can be found on momondo for an average of C$ 924.

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$ 1,120. 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$ 1,252.

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 morning. Our users have found flights to London Heathrow Airport in the morning for as low as C$ 846. In the evening is when there is more demand to fly to London Heathrow Airport, so prices are often more expensive at around C$ 1,206 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$ 1,023 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$ 935 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 30% 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 32% 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

C$ 917

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 C$ 917. The best round-trip flight deal from Montreal to London Heathrow Airport found on momondo in the last 72 hours is C$ 818.
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 5197.8 km. In terms of flight time, this usually takes a little over 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 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$ 610Free CancellationRating
7.4
1,469 reviews
Search Air France flights
TAP AIR PORTUGALPriceFrom C$ 632Free CancellationRating
7.1
1,963 reviews
Search TAP AIR PORTUGAL flights
Air TransatPriceFrom C$ 633Free CancellationRating
7.7
430 reviews
Search Air Transat flights
Air CanadaPriceFrom C$ 746Free CancellationRating
7.1
10,000 reviews
Search Air Canada flights
LufthansaPriceFrom C$ 761Free CancellationRating
6.8
7,368 reviews
Search Lufthansa flights
Virgin AtlanticPriceFrom C$ 769Free CancellationRating
7.4
661 reviews
Search Virgin Atlantic flights
British AirwaysPriceFrom C$ 784Free CancellationRating
6.7
7,316 reviews
Search British Airways flights
American AirlinesPriceFrom C$ 802Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
KLMPriceFrom C$ 804Free CancellationRating
7.8
1,382 reviews
Search KLM flights
FinnairPriceFrom C$ 863Free CancellationRating
7.6
1,321 reviews
Search Finnair flights

  • Finnair Flights From Montreal to London Heathrow Airport

    Across 2 Finnair flights from Montreal to London Heathrow Airport this week, the average price was C$ 745, with the best Finnair deals starting from C$ 624 round-trip. 1,321 users have rated Finnair on momondo, with an average score of 7.6/10.

  • American Airlines Flights From Montreal to London Heathrow Airport

    Across 10,000 American Airlines reviews on momondo, the average score is 7.2/10. American Airlines flies from Montreal to London Heathrow Airport about 2 times each week, with ticket deals ranging from C$ 580 to C$ 792. Price data is based on momondo searches in the last 72 hours.

Travelling to a place near London?

Book flights to London if you plan to visit one of these locations
Hounslow
Ipswich
Poole
Gatwick
Dartford
Crawley
Ilford
Wembley
Maidstone
Swindon
Chelmsford
Wokingham
Canterbury
Stratford-upon-Avon
Feltham
Hayes
Uxbridge
Waterlooville
Newport
Basingstoke

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

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Tue 2/9
Tue 9/9
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to London

Popular Cities in the United Kingdom

Popular flights according to clicks in the last 7 days on momondo
Flights to London Gatwick Airportfrom C$ 500
Flights to London City Airportfrom C$ 789
Flights to London Luton Airportfrom C$ 646
Flights to London Stansted Airportfrom C$ 633
Flights to London Southend Airportfrom C$ 818
Flights to Glasgow Intl Airportfrom C$ 639
Flights to Belfast Intl Airportfrom C$ 830
Flights to Belfast City Airportfrom C$ 850