Find flights
Deals
When to book
Airlines
FAQs

Cheap flights from London to Montreal from £315

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/5. Fares are subject to change and may not be available on all flights or dates of travel.
LON — YMQ
16 Apr — 23 Apr1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from London to Montreal are usually found in September or February, booked 83 days in advance, depart on a Wednesday or Friday and return on a Sunday

Cheap flight deals from London to Montreal

Enter your travel dates to find the best prices.

Cheapest flights from London to Montreal
Explore the most affordable flight options available from London to Montreal. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 17 March 2026.

Fri 25/911:35
LGW
-
YUL
Nonstop7h 40m
Air Transat
Fri 25/916:40
YUL
-
LGW
2 stops34h 15m
Air Transat
Deal found 15/3£376
Sun 20/911:35
LGW
-
YUL
Nonstop7h 40m
Air Transat
Sun 20/916:40
YUL
-
LGW
2 stops34h 15m
Air Transat
Deal found 14/3£379
Fri 11/911:35
LGW
-
YUL
Nonstop7h 40m
Air Transat
Fri 9/1016:40
YUL
-
LGW
2 stops37h 05m
Air Transat
Deal found 14/3£383
Fri 11/911:35
LGW
-
YUL
Nonstop7h 40m
Air Transat
Sun 20/916:40
YUL
-
LGW
1 stop10h 15m
Air Transat
Deal found 15/3£391
Mon 1/611:35
LGW
-
YUL
Nonstop7h 40m
Air Transat
Fri 5/616:40
YUL
-
LGW
1 stop10h 15m
Air Transat
Deal found 12/3£391
Fri 12/611:35
LGW
-
YUL
Nonstop7h 40m
Air Transat
Tue 16/616:40
YUL
-
LGW
2 stops34h 15m
Air Transat
Deal found 12/3£392
Fri 15/511:35
LGW
-
YUL
Nonstop7h 40m
Air Transat
Fri 22/516:40
YUL
-
LGW
1 stop10h 15m
Air Transat
Deal found 13/3£404
Fri 11/911:35
LGW
-
YUL
Nonstop7h 40m
Air Transat
Fri 2/1016:40
YUL
-
LGW
1 stop10h 15m
Air Transat
Deal found 13/3£405
Fri 21/812:40
LHR
-
YUL
1 stop13h 03m
Air Canada
Thu 3/922:10
YUL
-
LHR
Nonstop6h 50m
Air Canada
Deal found 12/3£410
Fri 26/611:35
LGW
-
YUL
Nonstop7h 40m
Air Transat
Tue 30/616:40
YUL
-
LGW
1 stop10h 15m
Air Transat
Deal found 15/3£413
Fri 21/812:05
LHR
-
YUL
1 stop11h 47m
Air Canada
Mon 7/922:10
YUL
-
LHR
Nonstop6h 50m
Air Canada
Deal found 15/3£415
Sun 26/412:40
LGW
-
YUL
1 stop16h 55m
Air Transat
Sun 3/506:45
YUL
-
LGW
1 stop23h 00m
Air Transat
Deal found 12/3£418

Find flight deals from London to Montreal

Discover tips and strategies to find the most affordable flight options for your journey from London (LON) to Montreal (YMQ). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 17 March 2026.

Round-trip from

£383

One-way from

£315

Popular in

December

Cheapest in

September

Average price

£495

Good round-trip deal

£448 or less

Good one-way deal

£282 or less
Air Transat
  • Air Transat
  • 11/9-9/10
  • 2 total stops
  • 44h 45m total
  • London to Montreal
Search Deals
Air Transat
  • Air Transat
  • 10/5
  • Nonstop
  • 7h 40m total
  • London to Montreal
Search Deals
Highest demand for flights based on searches. 5% potential increase in price (£20 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£11 potential savings vs. average return price).
Search Deals
Average for round-trip flights in March 2026
Search Deals
Price to beat on a round-trip flight from London (LON) to Montreal (YMQ).
Search Deals
Price to beat on a one-way flight from London (LON) to Montreal (YMQ).
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from London to Montreal 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, Cheapflights users made 858,174 searches. Data last updated 17 March 2026.
Use the filters below to find and compare flights from London to Montreal that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonMontreal

SEN - YUL

SENYUL

London Southend

Thu 14/5

10:10-11:35

1 stop30h 25m

Montreal Pierre Elliott Trudeau Intl

Thu 21/5

18:50-10:45

1 stop10h 55m

£428

LondonMontreal

LTN - YUL

LTNYUL

London Luton

Wed 17/6

19:20-11:35

1 stop21h 15m

Montreal Pierre Elliott Trudeau Intl

Fri 26/6

21:30-12:55

1 stop10h 25m

£465

LondonMontreal

SEN - YUL

SENYUL

London Southend

Thu 21/5

10:10-11:35

1 stop30h 25m

Montreal Pierre Elliott Trudeau Intl

Thu 28/5

18:50-10:45

1 stop10h 55m

£466

LondonMontreal

LTN - YUL

LTNYUL

London Luton

Wed 6/5

06:10-14:00

1 stop12h 50m

Montreal Pierre Elliott Trudeau Intl

Tue 12/5

21:30-14:40

1 stop12h 10m

£478

LondonMontreal

LTN - YUL

LTNYUL

London Luton

Sat 22/8

06:05-14:00

1 stop12h 55m

Montreal Pierre Elliott Trudeau Intl

Mon 31/8

18:50-10:35

1 stop10h 45m

£483

LondonMontreal

SEN - YUL

SENYUL

London Southend

Fri 28/8

11:20-11:35

1 stop29h 15m

Montreal Pierre Elliott Trudeau Intl

Sun 6/9

18:50-10:30

1 stop10h 40m

£492

LondonMontreal

LGW - YUL

LGWYUL

London Gatwick

Fri 21/8

11:35-14:15

Nonstop7h 40m

Montreal Pierre Elliott Trudeau Intl

Tue 8/9

22:05-09:50

Nonstop6h 45m

£495

LondonMontreal

LGW - YUL

LGWYUL

London Gatwick

Wed 26/8

11:35-14:15

Nonstop7h 40m

Montreal Pierre Elliott Trudeau Intl

Sun 6/9

22:05-09:50

Nonstop6h 45m

£510

LondonMontreal

LHR - YUL

LHRYUL

London Heathrow

Thu 23/4

15:20-22:06

1 stop11h 46m

Montreal Pierre Elliott Trudeau Intl

Sun 3/5

06:35-06:55

2 stops19h 20m

£533

LondonMontreal

LGW - YUL

LGWYUL

London Gatwick

Wed 19/8

11:35-14:15

Nonstop7h 40m

Montreal Pierre Elliott Trudeau Intl

Sun 6/9

22:05-09:50

Nonstop6h 45m

£535

Flights are sorted by cheapest return flights first.

Deals found on 16/3

Showing 1-10 of 60 resultsSorted by cheapest first
1
2
3
...
6

Best time to book a flight from London to Montreal

Have a flexible travel schedule? Discover the best time to fly to Montreal from London with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from London to Montreal

How far ahead should I book a flight from London to Montreal?

Use this chart to determine the optimal time to book a return flight from London to Montreal. Price data was last updated on 13 March 2026.

To ensure you get the cheapest price possible for a flight from London to Montreal, you should look to book at least 83 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from London to Montreal?

Currently, September is the cheapest month in which you can book a flight from London to Montreal (average of £287). Flying from London to Montreal in December is currently the most expensive (average of £388). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from LON to YMQ?

Find hourly flight availability from London to Montreal. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 17 March 2026.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from London to Montreal as you normally would.

Weekly flight availability from London to Montreal

Explore weekly flight availability from London to Montreal. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 17 March 2026.

The most flights from LON to YMQ are scheduled on a Monday (13 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (12 on average).

How much does it cost for a return flight from London to Montreal?

What’s the top stopover airport for flights from London to Montreal?

Share of one-stop return flights from London to Montreal chosen by Cheapflights users in the past 12 months, using the same stopover each way.

Toronto (YYZ) – chosen by Cheapflights users on 42% of one-stop itineraries from London to Montreal on Cheapflights.

What’s the cheapest stopover airport for flights from London to Montreal?

Average return fare for one-stop flights from London to Montreal, chosen by Cheapflights users in the past 12 months, with the same stopover each way.

Zurich (ZRH) is the most affordable one-stop option, with an average return flight price of £324.

What’s the fastest stopover option from London to Montreal?

Shortest average travel time for one-stop one-way flights from London to Montreal, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by stopover airport.

Flights via Paris (CDG) have the shortest average one-way travel time for one-stop routes: 9h 50m.

Which airport typically offers the quickest stopover for flights from London to Montreal?

Average stopover duration for one-stop one-way flights from London to Montreal, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Zurich (ZRH) offer the fastest connection on this route, with an average stopover time of 0h 53m.

How often are flights from London to Montreal delayed?

About 10% of weekly flights between London and Montreal have experienced delays in the past year, with the average delay time being 152 minutes.

What is the most punctual flight time for London to Montreal flights?

Historically, flights departing in the early afternoon are less likely to be delayed, whereas flights leaving in the evening tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Tuesday tends to have the lowest number of delays on this route, whereas Sunday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on London to Montreal flights?

Over the past year, Air Canada have had the lowest number of delays on this route, with just 6% of flights being delayed.

Reviews of airlines servicing Montreal

Get insights into the airlines that provide service to Montreal. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Montreal. Reviews last updated 17 March 2026.
Read reviews from past customers who have flown with Air Transat,American Airlines, andAir Canada from London to Montreal. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Air Transat
7.7
Good
521 reviews
Check prices

Food

6.8

Overall

7.7

Crew

8.5

Entertainment

7.0

Comfort

7.3

Boarding

7.9

Reviews

1 / 20
2.0
Mediocre

Anonymous,Dec 2025

YOW - GCM

The flight was delayed for 3.5 hours. No compensation for a meal voucher. We were positioned at the back of the plane and the toilets were not working properly. It was a foul smell coming from the toilet.
Air Transat
7.7
Good
521 reviews
Air Transat
7.7
Good
521 reviews
Check prices

Food

6.8

Overall

7.7

Crew

8.5

Entertainment

7.0

Comfort

7.3

Boarding

7.9

Reviews

1 / 20
2.0
Mediocre

Anonymous,Dec 2025

YOW - GCM

The flight was delayed for 3.5 hours. No compensation for a meal voucher. We were positioned at the back of the plane and the toilets were not working properly. It was a foul smell coming from the toilet.
American Airlines
7.1
Good
11,468 reviews
Air Transat
7.7
Good
521 reviews
Check prices

Food

6.8

Overall

7.7

Crew

8.5

Entertainment

7.0

Comfort

7.3

Boarding

7.9

Reviews

1 / 20
2.0
Mediocre

Anonymous,Dec 2025

YOW - GCM

The flight was delayed for 3.5 hours. No compensation for a meal voucher. We were positioned at the back of the plane and the toilets were not working properly. It was a foul smell coming from the toilet.
Air Canada
7.1
Good
10,811 reviews
Air Transat
7.7
Good
521 reviews
Check prices

Food

6.8

Overall

7.7

Crew

8.5

Entertainment

7.0

Comfort

7.3

Boarding

7.9

Reviews

1 / 20
2.0
Mediocre

Anonymous,Dec 2025

YOW - GCM

The flight was delayed for 3.5 hours. No compensation for a meal voucher. We were positioned at the back of the plane and the toilets were not working properly. It was a foul smell coming from the toilet.
Lufthansa
6.8
Okay
7,858 reviews
Air Transat
7.7
Good
521 reviews
Check prices

Food

6.8

Overall

7.7

Crew

8.5

Entertainment

7.0

Comfort

7.3

Boarding

7.9

Reviews

1 / 20
2.0
Mediocre

Anonymous,Dec 2025

YOW - GCM

The flight was delayed for 3.5 hours. No compensation for a meal voucher. We were positioned at the back of the plane and the toilets were not working properly. It was a foul smell coming from the toilet.
British Airways
6.7
Okay
7,797 reviews
Air Transat
7.7
Good
521 reviews
Check prices

Food

6.8

Overall

7.7

Crew

8.5

Entertainment

7.0

Comfort

7.3

Boarding

7.9

Reviews

1 / 20
2.0
Mediocre

Anonymous,Dec 2025

YOW - GCM

The flight was delayed for 3.5 hours. No compensation for a meal voucher. We were positioned at the back of the plane and the toilets were not working properly. It was a foul smell coming from the toilet.

Related info for your journey

Find useful and relevant information for your journey from London to Montreal. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from London to Montreal?

    Airlines like Air Transat, United Airlines, and SWISS fly from London to Montreal in about 7h 40m. The time it takes to get you to your destination can typically vary by up to 17h 05m. London and Montreal are separated by a distance of 3258 mi. Both multi-stop and direct flights can be found to your destination and back.

  • What are the cheapest airlines flying from London to Montreal round-trip?

    According to our current data, Air Transat (£305), United Airlines (£330), and Air Canada (£364) offers the cheapest pricing from London to Montreal. Air Transat is priced at 35% lower than the current average price of a flight leaving 3 months from now.

  • What are the cheapest airlines to fly from London to Montreal one-way?

    One-way options have recently been found by users for as low as £210 on Air Transat. Other airlines that offer cheap prices include Virgin Atlantic from £280 and British Airways from £293 one-way.

  • What are the most popular routes from London to Montreal?

    Most travelers choose London Heathrow - Montreal Pierre Elliott Trudeau Intl, London Gatwick - Montreal Pierre Elliott Trudeau Intl or London City - Montreal Pierre Elliott Trudeau Intl when deciding on the best route from London to Montreal.

  • What are the most reliable airlines from London to Montreal?

    The top 3 most reliable airlines when flying from London to Montreal are Aegean Airlines (96%), Air Canada (90%) and Austrian Airlines (90%).

  • What are the cheapest flights from London to Montreal?

    Looking for the cheapest flight from London to Montreal? While on average our users pay £781, our data indicates the cheapest price to be £321. The most popular route (London Heathrow - Montreal Pierre Elliott Trudeau Intl), is priced around £415.

  • Can I find deals for flights from London to Montreal that include hotel bookings?

    Yes. In addition to deals on London to Montreal flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from London to Montreal?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from London to Montreal.

  • Can I find deals for business class flights from London to Montreal?

    Yes. Cheapflights offers flight deals from London to Montreal by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from London to Montreal?

    Currently, September is the cheapest month in which you can book a flight from London to Montreal (average of £287). Flying from London to Montreal in December is currently the most expensive (average of £388). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Fly from London to Montreal on these airlines

Choose from the following airlines for your flight from London to Montreal. Flights are based on user searches made on Cheapflights and were last updated on 17 March 2026.
Air Canada flights from London to Montreal
Air Transat flights from London to Montreal
British Airways flights from London to Montreal

Top 7 airlines flying from London to Montreal

Discover the top 7 airlines that operate flights from London to Montreal. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 17 March 2026.
AirlineCheapestAverageFlexibilityOn-time
Air TransatCheapest£305Average£459FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
United AirlinesCheapest£330Average£499FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Air CanadaCheapest£364Average£504FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
British AirwaysCheapest£385Average£530FlexibilityNo cancel feeOn-time70%
Search British Airways flights
FinnairCheapest£393Average£762FlexibilityNo cancel feeOn-time76%
Search Finnair flights
LufthansaCheapest£398Average£519FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Virgin AtlanticCheapest£429Average£730FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from London to Montreal?

Cheapflights helps you search for flights from London to Montreal via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from London to Montreal?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from London to Montreal.

Can Cheapflights find flights from London to Montreal with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from London to Montreal, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from London to Montreal become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Montreal from London today and book when prices fit your budget.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.