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Cheap flights from London to Montreal from £221

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 8/9. Fares are subject to change and may not be available on all flights or dates of travel.
LON — YMQ
2 Sep — 9 Sep1
1 adult

Cheapflights Tip: The best prices from London to Montreal are usually found in September or March, booked 56 days in advance, depart on a Wednesday or Tuesday and return on a Sunday

Cheap 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 28 August 2025.

Round-trip from

£353

One-way from

£221

Popular in

December

Cheapest in

September

Average price

£546

Good round-trip deal

£335 or less

Good one-way deal

£245 or less
SWISS
  • SWISS
  • 9/10-16/10
  • 2 total stops
  • 21h 45m total
  • London to Montreal
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Air Transat
  • Air Transat
  • 8/9
  • Nonstop
  • 7h 40m total
  • London to Montreal
Search Deals
Highest demand for flights based on searches. 4% potential increase in price (£16 potential increase over avg. return price).
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Cheapest flight prices on average. 2% potential price decrease (£8 potential savings vs. average return price).
Search Deals
Average for round-trip flights in August 2025
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Price to beat on a round-trip flight from London (LON) to Montreal (YMQ).
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Price to beat on a one-way flight from London (LON) to Montreal (YMQ).
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Find flight deals from London to Montreal

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 28 August 2025.

Thu 9/1009:25LCY - YUL
1 stop10h 35mSWISS
Thu 16/1016:40YUL - LCY
1 stop11h 10mSWISS
Deal found 25/8£353
Thu 9/1011:35LGW - YUL
Nonstop7h 40mAir Transat
Thu 16/1018:00YUL - LGW
1 stop11h 45mAir Transat
Deal found 25/8£355
Fri 12/912:40LGW - YUL
1 stop30h 32mAir Transat
Wed 24/922:05YUL - LGW
Nonstop6h 45mAir Transat
Deal found 25/8£358
Fri 12/911:35LGW - YUL
Nonstop7h 40mAir Transat
Sat 4/1022:05YUL - LGW
Nonstop6h 45mAir Transat
Deal found 26/8£359
Thu 28/811:35LGW - YUL
Nonstop7h 40mAir Transat
Sat 11/1022:05YUL - LGW
Nonstop6h 45mAir Transat
Deal found 27/8£359
Tue 9/911:35LGW - YUL
Nonstop7h 40mAir Transat
Sat 4/1022:05YUL - LGW
Nonstop6h 45mAir Transat
Deal found 26/8£360
Sun 30/1106:50LHR - YUL
1 stop9h 55mAir Canada
Thu 4/1219:30YUL - LHR
Nonstop6h 40mAir Canada
Deal found 27/8£360
Fri 5/911:35LGW - YUL
Nonstop7h 40mAir Transat
Sun 14/910:00YUL - LGW
1 stop19h 45mAir Transat
Deal found 26/8£361
Thu 4/911:35LGW - YUL
Nonstop7h 40mAir Transat
Sat 6/922:05YUL - LGW
Nonstop6h 45mAir Transat
Deal found 27/8£362
Thu 11/911:35LGW - YUL
Nonstop7h 40mAir Transat
Thu 2/1022:05YUL - LGW
Nonstop6h 45mAir Transat
Deal found 25/8£363
Tue 4/1116:10LHR - YUL
Nonstop7h 35mBritish Airways
Wed 19/1120:40YUL - LHR
Nonstop6h 50mBritish Airways
Deal found 27/8£363
Wed 3/909:40LGW - YUL
1 stop13h 20mAir Transat
Sat 4/1022:05YUL - LGW
Nonstop6h 45mAir Transat
Deal found 25/8£364

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 28 August 2025.
Use the filters below to find and compare flights from London to Montreal that are best for you.

Fly from

London

Fly to

Montreal

Route

Depart

Return

Price

LondonMontreal

LGW - YUL

LGWYUL

London Gatwick

Fri 12/9

11:35-14:15

Nonstop7h 40m

Montreal Pierre Elliott Trudeau Intl

Sat 4/10

22:05-09:50

Nonstop6h 45m

£359

LondonMontreal

LGW - YUL

LGWYUL

London Gatwick

Fri 17/10

11:35-14:15

Nonstop7h 40m

Montreal Pierre Elliott Trudeau Intl

Tue 2/12

17:25-09:45

1 stop11h 20m

£359

LondonMontreal

LGW - YUL

LGWYUL

London Gatwick

Tue 7/10

11:35-14:15

Nonstop7h 40m

Montreal Pierre Elliott Trudeau Intl

Sat 11/10

22:05-09:50

Nonstop6h 45m

£359

LondonMontreal

LGW - YUL

LGWYUL

London Gatwick

Wed 10/9

11:35-14:15

Nonstop7h 40m

Montreal Pierre Elliott Trudeau Intl

Sat 4/10

22:05-09:50

Nonstop6h 45m

£360

LondonMontreal

LGW - YUL

LGWYUL

London Gatwick

Tue 9/9

11:35-14:15

Nonstop7h 40m

Montreal Pierre Elliott Trudeau Intl

Sat 4/10

22:05-09:50

Nonstop6h 45m

£360

LondonMontreal

LGW - YUL

LGWYUL

London Gatwick

Thu 11/9

11:35-14:15

Nonstop7h 40m

Montreal Pierre Elliott Trudeau Intl

Sat 4/10

22:05-09:50

Nonstop6h 45m

£360

LondonMontreal

LGW - YUL

LGWYUL

London Gatwick

Thu 9/10

11:35-14:15

Nonstop7h 40m

Montreal Pierre Elliott Trudeau Intl

Sat 11/10

15:10-10:45

1 stop14h 35m

£362

LondonMontreal

LGW - YUL

LGWYUL

London Gatwick

Thu 25/9

11:35-14:15

Nonstop7h 40m

Montreal Pierre Elliott Trudeau Intl

Thu 16/10

22:05-09:50

Nonstop6h 45m

£362

LondonMontreal

LGW - YUL

LGWYUL

London Gatwick

Sat 11/10

12:40-14:12

1 stop30h 32m

Montreal Pierre Elliott Trudeau Intl

Tue 28/10

17:25-09:45

1 stop12h 20m

£363

LondonMontreal

LHR - YUL

LHRYUL

London Heathrow

Wed 12/11

11:45-17:20

1 stop10h 35m

Montreal Pierre Elliott Trudeau Intl

Wed 19/11

17:00-07:55

1 stop9h 55m

£364

Flights are sorted by cheapest return flights first.

Deals found on 26/8

Showing 1-10 of 60 results
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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 22 August 2025.

To ensure you get the cheapest price possible for a flight from London to Montreal, you should look to book at least 56 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, February is the cheapest month in which you can book a flight from London to Montreal (average of £475). Flying from London to Montreal in July is currently the most expensive (average of £743). 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 28 August 2025.

It’s optimal to fly from London to Montreal in the evening. By choosing this option you can save up to 7% on the cost of your flight, compared to a flight at midday.

What is the cheapest day to fly from London to Montreal?

Use this chart to determine the cheapest time to fly return from London to Montreal. Price data was last updated on 16 December 2024.

Travellers seeking maximum savings on their London to Montreal flight should consider departing on Sunday evenings when fares are most often at their lowest. Friday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

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 28 August 2025.

The most flights from LON to YMQ are scheduled on a Tuesday (19 on average). You will have fewer flight options on Monday, 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 47% 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 £319.

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 Brussels (BRU) 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 50m.

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 28 August 2025.
Read reviews from past customers who have flown with Air Transat, Finnair, 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
429 reviews
Check prices

Crew

8.4

Entertainment

7.0

Food

6.8

Comfort

7.3

Overall

7.7

Boarding

7.9

Reviews

1 / 20
10.0
Excellent

Liam,Jun 2025

GLA - YYZ

To and from Glasgow with Air Transat. Excellent flights, food, service. Nothing but praise.
Air Transat
7.7
Good
429 reviews
Air Transat
7.7
Good
429 reviews
Check prices

Crew

8.4

Entertainment

7.0

Food

6.8

Comfort

7.3

Overall

7.7

Boarding

7.9

Reviews

1 / 20
10.0
Excellent

Liam,Jun 2025

GLA - YYZ

To and from Glasgow with Air Transat. Excellent flights, food, service. Nothing but praise.
Finnair
7.6
Good
1,321 reviews
Air Transat
7.7
Good
429 reviews
Check prices

Crew

8.4

Entertainment

7.0

Food

6.8

Comfort

7.3

Overall

7.7

Boarding

7.9

Reviews

1 / 20
10.0
Excellent

Liam,Jun 2025

GLA - YYZ

To and from Glasgow with Air Transat. Excellent flights, food, service. Nothing but praise.
Air Canada
7.1
Good
10,000 reviews
Air Transat
7.7
Good
429 reviews
Check prices

Crew

8.4

Entertainment

7.0

Food

6.8

Comfort

7.3

Overall

7.7

Boarding

7.9

Reviews

1 / 20
10.0
Excellent

Liam,Jun 2025

GLA - YYZ

To and from Glasgow with Air Transat. Excellent flights, food, service. Nothing but praise.
Lufthansa
6.8
Okay
7,368 reviews
Air Transat
7.7
Good
429 reviews
Check prices

Crew

8.4

Entertainment

7.0

Food

6.8

Comfort

7.3

Overall

7.7

Boarding

7.9

Reviews

1 / 20
10.0
Excellent

Liam,Jun 2025

GLA - YYZ

To and from Glasgow with Air Transat. Excellent flights, food, service. Nothing but praise.
British Airways
6.7
Okay
7,310 reviews
Air Transat
7.7
Good
429 reviews
Check prices

Crew

8.4

Entertainment

7.0

Food

6.8

Comfort

7.3

Overall

7.7

Boarding

7.9

Reviews

1 / 20
10.0
Excellent

Liam,Jun 2025

GLA - YYZ

To and from Glasgow with Air Transat. Excellent flights, food, service. Nothing but praise.

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, KLM, and Delta 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 5h 20m. 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 France (£96), Virgin Atlantic (£259), and Air Transat (£294) offers the cheapest pricing from London to Montreal. Air France is priced at 78% lower than the current average price of a flight leaving 3 months from now.

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

    Most travelers choose London Heathrow - Montreal Pierre Elliott Trudeau Intl, London City - Montreal Pierre Elliott Trudeau Intl or London Gatwick - 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 Air Canada (92%), Austrian Airlines (92%) and United Airlines (92%).

  • What are the cheapest flights from London to Montreal?

    Looking for the cheapest flight from London to Montreal? While on average our users pay £1,053, our data indicates the cheapest price to be £379. The most popular route (London Heathrow - Montreal Pierre Elliott Trudeau Intl), is priced around £350.

  • 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, February is the cheapest month in which you can book a flight from London to Montreal (average of £475). Flying from London to Montreal in July is currently the most expensive (average of £743). 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

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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 28 August 2025.
Air Canada flights from London to Montreal
Air Transat flights from London to Montreal
British Airways flights from London to Montreal

Top 9 airlines flying from London to Montreal

Discover the top 9 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 28 August 2025.
AirlineCheapestAverageFlexibilityOn-time
Air FranceCheapest£96Average£465FlexibilityNo cancel feeOn-time77%
Search Air France flights
Virgin AtlanticCheapest£259Average£682FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
Air TransatCheapest£294Average£473FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
United AirlinesCheapest£325Average£485FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
TAP AIR PORTUGALCheapest£335Average£535FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
Air CanadaCheapest£369Average£481FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
British AirwaysCheapest£373Average£533FlexibilityNo cancel feeOn-time70%
Search British Airways flights
LufthansaCheapest£375Average£494FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
FinnairCheapest£403Average£739FlexibilityNo cancel feeOn-time76%
Search Finnair 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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