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Cheap flights from London to Montreal from £320

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 18/4. Fares are subject to change and may not be available on all flights or dates of travel.
LON — YMQ
24 Apr — 1 May1
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 Friday or Wednesday 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 25 March 2026.

Mon 21/911:35
LGW
-
YUL
Nonstop7h 40m
Air Transat
Sun 27/916:40
YUL
-
LGW
1 stop10h 15m
Air Transat
Deal found 24/3£374
Mon 14/911:35
LGW
-
YUL
Nonstop7h 40m
Air Transat
Fri 25/916:40
YUL
-
LGW
2 stops34h 15m
Air Transat
Deal found 24/3£381
Fri 15/511:35
LGW
-
YUL
Nonstop7h 40m
Air Transat
Fri 22/516:40
YUL
-
LGW
1 stop10h 15m
Air Transat
Deal found 23/3£383
Sat 16/511:35
LGW
-
YUL
Nonstop7h 40m
Air Transat
Fri 22/516:40
YUL
-
LGW
1 stop10h 15m
Air Transat
Deal found 23/3£387
Fri 12/611:35
LGW
-
YUL
Nonstop7h 40m
Air Transat
Tue 16/616:40
YUL
-
LGW
1 stop10h 15m
Air Transat
Deal found 22/3£390
Fri 15/519:40
LGW
-
YUL
1 stop20h 25m
Multiple Airlines
Fri 22/518:15
YUL
-
LGW
1 stop22h 50m
Multiple Airlines
Deal found 23/3£391
Mon 22/611:35
LGW
-
YUL
Nonstop7h 40m
Air Transat
Tue 7/716:40
YUL
-
LGW
1 stop10h 15m
Air Transat
Deal found 23/3£393
Sat 13/611:35
LGW
-
YUL
Nonstop7h 40m
Air Transat
Tue 16/616:40
YUL
-
LGW
1 stop10h 15m
Air Transat
Deal found 23/3£393
Fri 8/519:40
LGW
-
YUL
1 stop20h 25m
Multiple Airlines
Fri 15/518:15
YUL
-
LGW
1 stop22h 50m
Multiple Airlines
Deal found 24/3£395
Fri 8/516:20
LTN
-
YUL
1 stop24h 15m
Multiple Airlines
Thu 21/518:50
YUL
-
LTN
1 stop12h 05m
Multiple Airlines
Deal found 20/3£417
Sat 16/506:35
STN
-
YUL
3 stops22h 50m
Multiple Airlines
Tue 19/506:45
YUL
-
STN
2 stops25h 40m
Multiple Airlines
Deal found 23/3£422
Thu 14/519:30
LTN
-
YUL
1 stop21h 05m
Multiple Airlines
Thu 21/518:50
YUL
-
LTN
1 stop12h 05m
Multiple Airlines
Deal found 24/3£422

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 25 March 2026.

Round-trip from

£374

One-way from

£320

Popular in

December

Cheapest in

September

Average price

£490

Good round-trip deal

£457 or less

Good one-way deal

£335 or less
Air Transat
  • Air Transat
  • 21/9-27/9
  • 1 total stop
  • 17h 55m total
  • London to Montreal
Search Deals
18/4
  • 18/4
  • 2 total stops
  • 22h 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 25 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

LTN - YUL

LTNYUL

London Luton

Fri 8/5

16:20-11:35

1 stop24h 15m

Montreal Pierre Elliott Trudeau Intl

Thu 21/5

18:50-11:55

1 stop12h 05m

£417

LondonMontreal

SEN - YUL

SENYUL

London Southend

Fri 8/5

11:20-11:35

1 stop29h 15m

Montreal Pierre Elliott Trudeau Intl

Thu 21/5

18:50-10:45

1 stop10h 55m

£427

LondonMontreal

LTN - YUL

LTNYUL

London Luton

Thu 14/5

16:15-11:35

1 stop24h 20m

Montreal Pierre Elliott Trudeau Intl

Mon 25/5

21:30-22:15

1 stop19h 45m

£434

LondonMontreal

STN - YUL

STNYUL

London Stansted

Fri 11/9

17:00-11:35

1 stop23h 35m

Montreal Pierre Elliott Trudeau Intl

Sun 20/9

21:30-15:05

1 stop12h 35m

£458

LondonMontreal

LTN - YUL

LTNYUL

London Luton

Thu 25/6

19:30-11:35

1 stop21h 05m

Montreal Pierre Elliott Trudeau Intl

Fri 3/7

18:50-12:55

1 stop13h 05m

£462
Fastest return journey

LondonMontreal

LGW - YUL

LGWYUL

London Gatwick

Mon 1/6

11:35-14:15

Nonstop7h 40m

Montreal Pierre Elliott Trudeau Intl

Tue 9/6

22:05-09:50

Nonstop6h 45m

£464

LondonMontreal

LTN - YUL

LTNYUL

London Luton

Tue 5/5

07:05-14:00

1 stop11h 55m

Montreal Pierre Elliott Trudeau Intl

Tue 12/5

21:30-14:40

1 stop12h 10m

£465

LondonMontreal

LTN - YUL

LTNYUL

London Luton

Mon 8/6

18:50-14:25

1 stop24h 35m

Montreal Pierre Elliott Trudeau Intl

Mon 15/6

22:20-17:30

1 stop14h 10m

£466

LondonMontreal

LGW - YUL

LGWYUL

London Gatwick

Wed 27/5

12:40-19:20

1 stop11h 40m

Montreal Pierre Elliott Trudeau Intl

Wed 10/6

20:35-07:55

1 stop30h 20m

£487

LondonMontreal

LGW - YUL

LGWYUL

London Gatwick

Mon 20/4

09:25-19:20

2 stops14h 55m

Montreal Pierre Elliott Trudeau Intl

Mon 11/5

16:40-08:20

1 stop10h 40m

£541

Flights are sorted by cheapest return flights first.

Deals found on 24/3

Showing 1-10 of 60 resultsSorted by cheapest first
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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 £284). Flying from London to Montreal in December is currently the most expensive (average of £385). 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 25 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.

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 41% 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 £321.

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 9% 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 Monday 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 25 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
523 reviews
Check prices

Overall

7.7

Boarding

7.9

Comfort

7.3

Entertainment

7.0

Crew

8.5

Food

6.8

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
523 reviews
Air Transat
7.7
Good
523 reviews
Check prices

Overall

7.7

Boarding

7.9

Comfort

7.3

Entertainment

7.0

Crew

8.5

Food

6.8

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
11,494 reviews
Air Transat
7.7
Good
523 reviews
Check prices

Overall

7.7

Boarding

7.9

Comfort

7.3

Entertainment

7.0

Crew

8.5

Food

6.8

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
10,840 reviews
Air Transat
7.7
Good
523 reviews
Check prices

Overall

7.7

Boarding

7.9

Comfort

7.3

Entertainment

7.0

Crew

8.5

Food

6.8

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
7,867 reviews
Air Transat
7.7
Good
523 reviews
Check prices

Overall

7.7

Boarding

7.9

Comfort

7.3

Entertainment

7.0

Crew

8.5

Food

6.8

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
7,820 reviews
Air Transat
7.7
Good
523 reviews
Check prices

Overall

7.7

Boarding

7.9

Comfort

7.3

Entertainment

7.0

Crew

8.5

Food

6.8

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, SWISS, and United Airlines 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 13h 18m. 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 (£303), United Airlines (£327), and Air Canada (£361) 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 £208 on Air Transat. Other airlines that offer cheap prices include Virgin Atlantic from £278 and British Airways from £291 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 Stansted - 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 £1,031, our data indicates the cheapest price to be £316. The most popular route (London Heathrow - Montreal Pierre Elliott Trudeau Intl), is priced around £428.

  • 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 £284). Flying from London to Montreal in December is currently the most expensive (average of £385). 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 25 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 25 March 2026.
AirlineCheapestAverageFlexibilityOn-time
Air TransatCheapest£303Average£456FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
United AirlinesCheapest£327Average£495FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Air CanadaCheapest£361Average£503FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
British AirwaysCheapest£383Average£530FlexibilityNo cancel feeOn-time70%
Search British Airways flights
FinnairCheapest£389Average£755FlexibilityNo cancel feeOn-time76%
Search Finnair flights
LufthansaCheapest£395Average£517FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Virgin AtlanticCheapest£425Average£724FlexibilityNo 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.

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