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Cheap flights from London Heathrow Airport to Montreal from £287

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 10/3. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — YMQ
27 Dec — 3 Jan1
1 adult
1 adult, Economy, 0 bags

Cheapflights Tip: The best prices from London Heathrow to Montreal are usually found in June or May, booked 84 days in advance, depart on a Wednesday or Friday and return on a Sunday

Cheap flight deals from Heathrow to Montreal

Discover tips and strategies to find the most affordable flight options for your journey from Heathrow (LHR) 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 27 November 2025.

Round-trip from

£427

One-way from

£287

Popular in

December

Cheapest in

June

Average price

£442

Good round-trip deal

£545 or less

Good one-way deal

£436 or less
Air Canada
  • Air Canada
  • 15/2-26/2
  • 2 total stops
  • 25h 15m total
  • London to Montreal
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Virgin Atlantic
  • Virgin Atlantic
  • 10/3
  • 1 total stop
  • 25h 55m total
  • London to Montreal
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Highest demand for flights based on searches. 4% potential increase in price (£17 potential increase over avg. return price).
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Cheapest flight prices on average. 2% potential price decrease (£9 potential savings vs. average return price).
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Average for round-trip flights in November 2025
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Price to beat on a round-trip flight from London Heathrow to Montreal (YMQ).
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Price to beat on a one-way flight from London Heathrow to Montreal (YMQ).
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Find flight deals from Heathrow to Montreal

Enter your travel dates to find the best prices.

Cheapest flights from Heathrow to Montreal
Explore the most affordable flight options available from Heathrow to Montreal. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 27 November 2025.

Wed 26/1111:10LHR - YUL
1 stop12h 10mLufthansa
Wed 3/1213:20YUL - LHR
1 stop15h 00mLufthansa
Deal found 24/11£428
Thu 27/1106:00LHR - YUL
1 stop14h 10mSWISS
Wed 3/1216:45YUL - LHR
1 stop20h 05mSWISS
Deal found 24/11£430
Thu 4/1206:00LHR - YUL
1 stop14h 10mMultiple Airlines
Wed 7/121:45YUL - LHR
1 stop17h 50mMultiple Airlines
Deal found 24/11£430
Wed 26/1109:00LHR - YUL
2 stops15h 14mAir Canada
Wed 3/1212:10YUL - LHR
2 stops16h 10mAir Canada
Deal found 25/11£432
Thu 4/1214:45LHR - YUL
1 stop12h 57mMultiple Airlines
Thu 15/120:40YUL - LHR
Nonstop6h 50mMultiple Airlines
Deal found 24/11£433
Sat 6/1209:00LHR - YUL
2 stops15h 14mAir Canada
Sat 13/1222:30YUL - LHR
2 stops17h 05mAir Canada
Deal found 26/11£433
Sat 6/1206:00LHR - YUL
1 stop14h 10mMultiple Airlines
Sat 13/1221:45YUL - LHR
1 stop17h 50mMultiple Airlines
Deal found 26/11£436
Wed 26/1109:00LHR - YUL
1 stop11h 10mAir Canada
Thu 27/1121:45YUL - LHR
1 stop17h 50mAir Canada
Deal found 25/11£436
Thu 27/1113:25LHR - YUL
Nonstop7h 45mAir Canada
Tue 9/1220:10YUL - LHR
2 stops19h 25mAir Canada
Deal found 26/11£437
Wed 3/1209:00LHR - YUL
1 stop11h 10mSWISS
Mon 12/116:45YUL - LHR
1 stop10h 20mSWISS
Deal found 24/11£439

Cheapflights Fare Finder

 
Customise your flight search to find flights from Heathrow 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 27 November 2025.
Use the filters below to find and compare flights from London Heathrow Airport to Montreal that are best for you.

Fly from

Heathrow

Fly to

Montreal

Route

Depart

Return

Price

LondonMontreal

LHR - YUL

LHRYUL

London Heathrow

Sat 10/1

09:55-22:44

1 stop17h 49m

Montreal Pierre Elliott Trudeau Intl

Sat 17/1

20:30-08:20

Nonstop6h 50m

£438

LondonMontreal

LHR - YUL

LHRYUL

London Heathrow

Thu 19/3

09:55-22:44

1 stop16h 49m

Montreal Pierre Elliott Trudeau Intl

Sun 22/3

21:50-08:40

Nonstop6h 50m

£438

LondonMontreal

LHR - YUL

LHRYUL

London Heathrow

Tue 20/1

16:10-18:45

Nonstop7h 35m

Montreal Pierre Elliott Trudeau Intl

Sat 31/1

12:59-06:35

1 stop12h 36m

£438

LondonMontreal

LHR - YUL

LHRYUL

London Heathrow

Thu 5/3

10:15-22:59

1 stop17h 44m

Montreal Pierre Elliott Trudeau Intl

Thu 12/3

21:50-08:40

Nonstop6h 50m

£438

LondonMontreal

LHR - YUL

LHRYUL

London Heathrow

Mon 16/3

07:30-19:48

2 stops16h 18m

Montreal Pierre Elliott Trudeau Intl

Sun 5/4

11:23-06:55

2 stops14h 32m

£445

LondonMontreal

LHR - YUL

LHRYUL

London Heathrow

Wed 10/12

11:10-18:20

1 stop12h 10m

Montreal Pierre Elliott Trudeau Intl

Fri 24/4

18:55-06:30

Nonstop6h 35m

£449

LondonMontreal

LHR - YUL

LHRYUL

London Heathrow

Thu 22/1

06:00-15:10

1 stop14h 10m

Montreal Pierre Elliott Trudeau Intl

Fri 6/2

16:45-11:15

1 stop13h 30m

£451

LondonMontreal

LHR - YUL

LHRYUL

London Heathrow

Fri 9/1

09:55-22:44

1 stop17h 49m

Montreal Pierre Elliott Trudeau Intl

Fri 16/1

15:50-10:25

1 stop13h 35m

£458

LondonMontreal

LHR - YUL

LHRYUL

London Heathrow

Mon 11/5

18:05-20:15

Nonstop7h 10m

Montreal Pierre Elliott Trudeau Intl

Sun 21/6

18:00-12:15

1 stop13h 15m

£464

LondonMontreal

LHR - YUL

LHRYUL

London Heathrow

Sat 16/5

10:50-18:50

1 stop13h 00m

Montreal Pierre Elliott Trudeau Intl

Wed 15/7

18:15-08:35

1 stop9h 20m

£466

Flights are sorted by cheapest return flights first.

Deals found on 24/11

Showing 1-10 of 24 results
1
2
3

Best time to book a flight from Heathrow to Montreal

Have a flexible travel schedule? Discover the best time to fly to Montreal from Heathrow 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 Heathrow Airport to Montreal

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

Use this chart to determine the optimal time to book a return flight from Heathrow to Montreal. Price data was last updated on 21 November 2025.

To ensure you get the cheapest price possible for a flight from London Heathrow Airport to Montreal, you should look to book at least 84 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 Heathrow Airport to Montreal?

Currently, May is the cheapest month in which you can book a flight from London Heathrow Airport to Montreal (average of £339). Flying from London Heathrow Airport to Montreal in December is currently the most expensive (average of £393). 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 LHR to YMQ?

Find hourly flight availability from Heathrow 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 27 November 2025.

Unlike in the afternoon, when flights are generally more expensive, you can save up to 25% on flights from London Heathrow Airport to Montreal by exploring options for tickets in the morning.

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

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

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

Weekly flight availability from London Heathrow Airport to Montreal

Explore weekly flight availability from Heathrow 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 27 November 2025.

The most flights from LHR 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 Heathrow Airport to Montreal?

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

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

Lisbon (LIS) – chosen by Cheapflights users on 31% of one-stop itineraries from London Heathrow Airport to Montreal on Cheapflights.

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

Average return fare for one-stop flights from London Heathrow Airport 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 £371.

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

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

Flights via Amsterdam (AMS) have the shortest average one-way travel time for one-stop routes: 11h 03m.

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

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

Flights via Newark (EWR) offer the fastest connection on this route, with an average stopover time of 1h 38m.

How often are flights from London to Montreal delayed?

About 11% of weekly flights between London and Montreal have experienced delays in the past year, with the average delay time being 143 minutes.

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

Historically, flights departing in the morning 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 Thursday 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 8% 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 27 November 2025.
See what other customers who have flown with United Airlines, American Airlines, andAir Canada from London Heathrow Airport to Montreal have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,046 reviews
Check prices

Food

6.6

Boarding

7.7

Comfort

7.3

Crew

8.1

Entertainment

7.1

Overall

7.4

Reviews

1 / 20
10.0
Excellent

Tim,Sept 2025

LHR - IAD

The premium economy seats were very comfortable and the attention and service by the flight attendants was superb.
United Airlines
7.4
Good
9,046 reviews
United Airlines
7.4
Good
9,046 reviews
Check prices

Food

6.6

Boarding

7.7

Comfort

7.3

Crew

8.1

Entertainment

7.1

Overall

7.4

Reviews

1 / 20
10.0
Excellent

Tim,Sept 2025

LHR - IAD

The premium economy seats were very comfortable and the attention and service by the flight attendants was superb.
American Airlines
7.2
Good
11,038 reviews
United Airlines
7.4
Good
9,046 reviews
Check prices

Food

6.6

Boarding

7.7

Comfort

7.3

Crew

8.1

Entertainment

7.1

Overall

7.4

Reviews

1 / 20
10.0
Excellent

Tim,Sept 2025

LHR - IAD

The premium economy seats were very comfortable and the attention and service by the flight attendants was superb.
Air Canada
7.1
Good
10,476 reviews
United Airlines
7.4
Good
9,046 reviews
Check prices

Food

6.6

Boarding

7.7

Comfort

7.3

Crew

8.1

Entertainment

7.1

Overall

7.4

Reviews

1 / 20
10.0
Excellent

Tim,Sept 2025

LHR - IAD

The premium economy seats were very comfortable and the attention and service by the flight attendants was superb.
Lufthansa
6.8
Okay
7,594 reviews
United Airlines
7.4
Good
9,046 reviews
Check prices

Food

6.6

Boarding

7.7

Comfort

7.3

Crew

8.1

Entertainment

7.1

Overall

7.4

Reviews

1 / 20
10.0
Excellent

Tim,Sept 2025

LHR - IAD

The premium economy seats were very comfortable and the attention and service by the flight attendants was superb.
British Airways
6.7
Okay
7,539 reviews
United Airlines
7.4
Good
9,046 reviews
Check prices

Food

6.6

Boarding

7.7

Comfort

7.3

Crew

8.1

Entertainment

7.1

Overall

7.4

Reviews

1 / 20
10.0
Excellent

Tim,Sept 2025

LHR - IAD

The premium economy seats were very comfortable and the attention and service by the flight attendants was superb.

Related info for your journey

Find useful and relevant information for your journey from Heathrow 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 Heathrow Airport to Montreal?

    For as low as £445, United Airlines can have you in Montreal from London Heathrow Airport in 16h 18m. The distance between London Heathrow Airport and Montreal is about 3239 mi.

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

    According to our current data, Air France (£98), Virgin Atlantic (£264), and Air Transat (£326) offers the cheapest pricing from London Heathrow Airport to Montreal. Air France is 79% cheaper than the average price of flights available within the next 90 days to this destination.

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

    No one likes to see their flight delayed. When booking a flight from London Heathrow Airport to Montreal consider choosing Egyptair (97%), Thai Airways (96%) or MEA (96%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from London Heathrow Airport to Montreal?

    While on average a flight from London Heathrow Airport to Montreal is generally £1,281, our data shows the cheapest flight currently is £229. When looking at the most popular route, (London Heathrow - Montreal Pierre Elliott Trudeau Intl), you can expect to pay £395 for that flight.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Heathrow 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 Heathrow Airport to Montreal?

    Currently, May is the cheapest month in which you can book a flight from London Heathrow Airport to Montreal (average of £339). Flying from London Heathrow Airport to Montreal in December is currently the most expensive (average of £393). 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.

Top 9 airlines flying from Heathrow to Montreal

Discover the top 9 airlines that operate flights from Heathrow 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 27 November 2025.
AirlineCheapestAverageFlexibilityOn-time
Air FranceCheapest£98Average£457FlexibilityNo cancel feeOn-time77%
Search Air France flights
Virgin AtlanticCheapest£264Average£696FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
Air TransatCheapest£326Average£496FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
United AirlinesCheapest£332Average£502FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
TAP AIR PORTUGALCheapest£342Average£550FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
Air CanadaCheapest£372Average£508FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
LufthansaCheapest£378Average£516FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
British AirwaysCheapest£383Average£528FlexibilityNo cancel feeOn-time70%
Search British Airways flights
FinnairCheapest£405Average£594FlexibilityNo 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 Heathrow to Montreal?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Heathrow to Montreal. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

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

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Heathrow to Montreal for you. Better yet — we are completely free to use.

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

Yes! Cheapflights helps users easily find flights from Heathrow to Montreal with no change fees.

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

Yes! Start tracking prices for Heathrow to Montreal flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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