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Cheap flights from London to Montreal from £246

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 1/10. Fares are subject to change and may not be available on all flights or dates of travel.
LON — YMQ
16 Jul — 23 Jul1
1 adult

Cheapflights Tip: The best prices from London to Montreal are usually found in September or March, booked 71 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 11 July 2025.

Round-trip from

£341

One-way from

£246

Popular in

December

Cheapest in

September

Average price

£525

Good round-trip deal

£337 or less

Good one-way deal

£276 or less
Air Transat
  • Air Transat
  • 4/9-9/9
  • 2 total stops
  • 31h 50m total
  • London to Montreal
Air Transat
  • Air Transat
  • 1/10
  • 1 total stop
  • 16h 57m total
  • London to Montreal
Highest demand for flights based on searches. 4% potential increase in price (£16 potential increase over avg. return price).
Cheapest flight prices on average. 2% potential price decrease (£8 potential savings vs. average return price).
Average for round-trip flights in July 2025
Price to beat on a round-trip flight from London (LON) to Montreal (YMQ).
Price to beat on a one-way flight from London (LON) to Montreal (YMQ).

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 11 July 2025.

Thu 4/912:40LGW - YUL
1 stop11h 40mAir Transat
Tue 9/906:45YUL - LGW
1 stop20h 10mAir Transat
Deal found 9/7£341
Thu 4/909:30LHR - YUL
Nonstop7h 10mAir Canada
Tue 9/921:55YUL - LHR
Nonstop6h 40mAir Canada
Deal found 9/7£346
Sun 12/1007:25LHR - YUL
1 stop18h 35mMultiple Airlines
Wed 19/1116:50YUL - LHR
1 stop10h 15mMultiple Airlines
Deal found 10/7£347
Thu 9/1008:40LHR - YUL
1 stop11h 20mSWISS
Thu 30/1017:50YUL - LHR
1 stop20h 00mSWISS
Deal found 10/7£362
Mon 8/913:45LHR - YUL
1 stop12h 25mTAP AIR PORTUGAL
Mon 22/922:45YUL - LHR
1 stop15h 05mTAP AIR PORTUGAL
Deal found 9/7£364
Wed 5/1109:25LCY - YUL
1 stop10h 50mSWISS
Wed 12/1116:50YUL - LCY
1 stop19h 15mSWISS
Deal found 8/7£366
Sun 14/915:05LTN - YUL
1 stop25h 30mMultiple Airlines
Sun 21/918:50YUL - LTN
1 stop18h 25mMultiple Airlines
Deal found 10/7£375
Tue 2/910:30LHR - YUL
1 stop10h 30mLufthansa
Sat 20/918:55YUL - LHR
Nonstop6h 35mLufthansa
Deal found 10/7£376
Wed 1/1007:40LGW - YUL
1 stop18h 20mMultiple Airlines
Wed 1/1023:00YUL - LGW
1 stop10h 00mMultiple Airlines
Deal found 9/7£380
Wed 5/1116:10LHR - YUL
Nonstop7h 35mBritish Airways
Wed 12/1120:40YUL - LHR
Nonstop6h 50mBritish Airways
Deal found 8/7£389
Fri 5/911:45LHR - YUL
1 stop10h 10mDelta
Wed 28/117:00YUL - LHR
1 stop15h 45mDelta
Deal found 9/7£389
Wed 24/916:25LGW - YUL
1 stop33h 45mTAP AIR PORTUGAL
Wed 15/1022:45YUL - LGW
1 stop30h 00mTAP AIR PORTUGAL
Deal found 9/7£393

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 11 July 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

Thu 4/9

12:40-19:20

1 stop11h 40m

Montreal Pierre Elliott Trudeau Intl

Tue 9/9

06:45-07:55

1 stop20h 10m

£341

LondonMontreal

LHR - YUL

LHRYUL

London Heathrow

Thu 4/9

09:30-11:40

Nonstop7h 10m

Montreal Pierre Elliott Trudeau Intl

Tue 9/9

21:55-09:35

Nonstop6h 40m

£346

LondonMontreal

LHR - YUL

LHRYUL

London Heathrow

Sun 12/10

07:25-21:00

1 stop18h 35m

Montreal Pierre Elliott Trudeau Intl

Wed 19/11

16:50-08:05

1 stop10h 15m

£347

LondonMontreal

LHR - YUL

LHRYUL

London Heathrow

Thu 9/10

08:40-15:00

1 stop11h 20m

Montreal Pierre Elliott Trudeau Intl

Thu 30/10

17:50-17:50

1 stop20h 00m

£362

LondonMontreal

LHR - YUL

LHRYUL

London Heathrow

Mon 8/9

13:45-21:10

1 stop12h 25m

Montreal Pierre Elliott Trudeau Intl

Mon 22/9

22:45-18:50

1 stop15h 05m

£364

LondonMontreal

LCY - YUL

LCYYUL

London City

Wed 5/11

09:25-15:15

1 stop10h 50m

Montreal Pierre Elliott Trudeau Intl

Wed 12/11

16:50-17:05

1 stop19h 15m

£366

LondonMontreal

LTN - YUL

LTNYUL

London Luton

Sun 14/9

15:05-11:35

1 stop25h 30m

Montreal Pierre Elliott Trudeau Intl

Sun 21/9

18:50-18:15

1 stop18h 25m

£375

LondonMontreal

LHR - YUL

LHRYUL

London Heathrow

Tue 2/9

10:30-16:00

1 stop10h 30m

Montreal Pierre Elliott Trudeau Intl

Sat 20/9

18:55-06:30

Nonstop6h 35m

£376

LondonMontreal

LGW - YUL

LGWYUL

London Gatwick

Wed 1/10

07:40-21:00

1 stop18h 20m

Montreal Pierre Elliott Trudeau Intl

Wed 1/10

23:00-14:00

1 stop10h 00m

£380

LondonMontreal

LHR - YUL

LHRYUL

London Heathrow

Wed 5/11

16:10-18:45

Nonstop7h 35m

Montreal Pierre Elliott Trudeau Intl

Wed 12/11

20:40-08:30

Nonstop6h 50m

£389

Flights are sorted by cheapest return flights first.

Deals found on 9/7

Showing 1-10 of 32 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 27 June 2025.

To ensure you get the cheapest price possible for a flight from London to Montreal, you should look to book at least 71 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 11 July 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 11 July 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?

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 11 July 2025.
Read reviews from past customers who have flown with Delta, Air Transat, andSWISS 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.

Food

7.3

Overall

8.0

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
8.0
Very Good

Food

7.3

Overall

8.0

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Food

7.3

Overall

8.0

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Food

7.3

Overall

8.0

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Food

7.3

Overall

8.0

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Food

7.3

Overall

8.0

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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

    According to our current data, Air Transat (£341), Air Canada (£346), and SWISS (£362) offers the cheapest pricing from London to Montreal. Air Transat is priced at 24% 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 £246 on Air Transat. Other airlines that offer cheap prices include TAP AIR PORTUGAL from £325 and Aer Lingus from £368 one-way.

  • What are the most popular routes 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 Austrian Airlines (94%), United Airlines (94%) and Lufthansa (94%).

  • What are the cheapest flights from London to Montreal?

    Looking for the cheapest flight from London to Montreal? While on average our users pay £1,378, our data indicates the cheapest price to be £350. The most popular route (London Heathrow - Montreal Pierre Elliott Trudeau Intl), is priced around £346.

  • 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

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 11 July 2025.

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 11 July 2025.
AirlineCheapestAverageFlexibilityOn-time
Air FranceCheapest£95Average£522FlexibilityNo cancel feeOn-time77%
Search Air France flights
Air TransatCheapest£307Average£512FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
United AirlinesCheapest£322Average£481FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
TAP AIR PORTUGALCheapest£332Average£530FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
Air CanadaCheapest£365Average£476FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
LufthansaCheapest£366Average£483FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
British AirwaysCheapest£369Average£530FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Virgin AtlanticCheapest£380Average£676FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
FinnairCheapest£400Average£710FlexibilityNo 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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