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Cheap flights from London Heathrow Airport to Montreal from £244

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 18/11. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — YMQ
7 Dec — 14 Dec1
1 adult
1 adult, Economy, 0 bags

Cheapflights Tip: The best prices from London Heathrow to Montreal are usually found in June or September, booked 36 days in advance, depart on a Wednesday or Tuesday 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 7 November 2025.

Round-trip from

£396

One-way from

£244

Popular in

December

Cheapest in

June

Average price

£447

Good round-trip deal

£507 or less

Good one-way deal

£376 or less
Air Canada
  • Air Canada
  • 4/12-9/12
  • 3 total stops
  • 30h 35m total
  • London to Montreal
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18/11
  • 18/11
  • 1 total stop
  • 33h 25m total
  • London to Montreal
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Highest demand for flights based on searches. 5% potential increase in price (£20 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 7 November 2025.

Thu 4/1209:00LHR - YUL
1 stop11h 10mAir Canada
Tue 9/1220:10YUL - LHR
2 stops19h 25mAir Canada
Deal found 5/11£396
Tue 11/1112:05LHR - YUL
1 stop32h 05mAir Canada
Tue 25/1120:10YUL - LHR
2 stops19h 25mAir Canada
Deal found 6/11£396
Sun 9/1109:05LHR - YUL
1 stop33h 40mAir Canada
Tue 18/1120:10YUL - LHR
2 stops19h 25mAir Canada
Deal found 6/11£398
Wed 12/1109:00LHR - YUL
1 stop11h 10mAir Canada
Wed 26/1120:10YUL - LHR
2 stops19h 25mAir Canada
Deal found 7/11£399
Thu 13/1106:00LHR - YUL
1 stop12h 45mAir Canada
Sun 23/1110:30YUL - LHR
2 stops17h 50mAir Canada
Deal found 7/11£407
Fri 21/1112:05LHR - YUL
1 stop32h 05mAir Canada
Sun 30/1122:30YUL - LHR
2 stops17h 05mAir Canada
Deal found 6/11£408
Sat 22/1109:00LHR - YUL
1 stop11h 10mAir Canada
Wed 10/1222:30YUL - LHR
2 stops17h 05mAir Canada
Deal found 6/11£409
Mon 10/1106:00LHR - YUL
1 stop12h 45mAir Canada
Tue 18/1122:30YUL - LHR
2 stops17h 05mAir Canada
Deal found 6/11£411
Sat 8/1106:00LHR - YUL
1 stop12h 45mAir Canada
Thu 13/1108:00YUL - LHR
2 stops31h 35mAir Canada
Deal found 7/11£412
Thu 4/1206:00LHR - YUL
1 stop12h 45mMultiple Airlines
Tue 9/1213:10YUL - LHR
1 stop12h 20mMultiple Airlines
Deal found 5/11£413
Wed 5/1119:25LHR - YUL
1 stop23h 20mAir Canada
Mon 17/1121:30YUL - LHR
2 stops18h 05mAir Canada
Deal found 5/11£414

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 7 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

Thu 19/3

06:00-15:55

1 stop13h 55m

Montreal Pierre Elliott Trudeau Intl

Mon 23/3

17:55-16:20

1 stop18h 25m

£453

LondonMontreal

LHR - YUL

LHRYUL

London Heathrow

Mon 23/3

18:40-15:55

1 stop25h 15m

Montreal Pierre Elliott Trudeau Intl

Tue 31/3

16:50-13:00

2 stops15h 10m

£460

LondonMontreal

LHR - YUL

LHRYUL

London Heathrow

Mon 24/11

06:00-19:22

2 stops18h 22m

Montreal Pierre Elliott Trudeau Intl

Sun 30/11

20:15-13:40

1 stop12h 25m

£464

LondonMontreal

LHR - YUL

LHRYUL

London Heathrow

Fri 5/12

16:10-18:45

Nonstop7h 35m

Montreal Pierre Elliott Trudeau Intl

Mon 8/12

20:40-08:30

Nonstop6h 50m

£473

LondonMontreal

LHR - YUL

LHRYUL

London Heathrow

Thu 4/12

13:25-16:10

Nonstop7h 45m

Montreal Pierre Elliott Trudeau Intl

Thu 11/12

19:30-07:10

Nonstop6h 40m

£475

LondonMontreal

LHR - YUL

LHRYUL

London Heathrow

Tue 13/1

06:00-19:22

2 stops18h 22m

Montreal Pierre Elliott Trudeau Intl

Sun 18/1

18:35-16:20

2 stops16h 45m

£479

LondonMontreal

LHR - YUL

LHRYUL

London Heathrow

Fri 5/12

07:30-19:48

2 stops17h 18m

Montreal Pierre Elliott Trudeau Intl

Mon 8/12

15:00-10:50

2 stops14h 50m

£491

LondonMontreal

LHR - YUL

LHRYUL

London Heathrow

Mon 4/5

06:15-15:00

1 stop13h 45m

Montreal Pierre Elliott Trudeau Intl

Sat 9/5

17:00-08:00

1 stop10h 00m

£495

LondonMontreal

LHR - YUL

LHRYUL

London Heathrow

Mon 23/3

16:20-07:32

2 stops19h 12m

Montreal Pierre Elliott Trudeau Intl

Tue 31/3

17:30-10:40

2 stops12h 10m

£498

LondonMontreal

LHR - YUL

LHRYUL

London Heathrow

Tue 28/4

06:15-15:00

1 stop13h 45m

Montreal Pierre Elliott Trudeau Intl

Wed 6/5

17:00-08:00

1 stop10h 00m

£512

Flights are sorted by cheapest return flights first.

Deals found on 7/11

Showing 1-10 of 20 results
1
2

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 31 October 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 36 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 £341). Flying from London Heathrow Airport to Montreal in December is currently the most expensive (average of £405). 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 7 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 7 November 2025.

The most flights from LHR to YMQ are scheduled on a Wednesday (13 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (10 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 £374.

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.

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 7 November 2025.
See what other customers who have flown with Finnair, United 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.
Finnair
7.6
Good
1,335 reviews
Check prices

Food

6.7

Comfort

7.4

Crew

8.1

Entertainment

6.9

Overall

7.6

Boarding

7.6

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

FRA - DFW

I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.
Finnair
7.6
Good
1,335 reviews
Finnair
7.6
Good
1,335 reviews
Check prices

Food

6.7

Comfort

7.4

Crew

8.1

Entertainment

6.9

Overall

7.6

Boarding

7.6

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

FRA - DFW

I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.
United Airlines
7.4
Good
9,007 reviews
Finnair
7.6
Good
1,335 reviews
Check prices

Food

6.7

Comfort

7.4

Crew

8.1

Entertainment

6.9

Overall

7.6

Boarding

7.6

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

FRA - DFW

I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.
Air Canada
7.1
Good
10,416 reviews
Finnair
7.6
Good
1,335 reviews
Check prices

Food

6.7

Comfort

7.4

Crew

8.1

Entertainment

6.9

Overall

7.6

Boarding

7.6

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

FRA - DFW

I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.
Lufthansa
6.8
Okay
7,558 reviews
Finnair
7.6
Good
1,335 reviews
Check prices

Food

6.7

Comfort

7.4

Crew

8.1

Entertainment

6.9

Overall

7.6

Boarding

7.6

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

FRA - DFW

I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.
British Airways
6.7
Okay
7,500 reviews
Finnair
7.6
Good
1,335 reviews
Check prices

Food

6.7

Comfort

7.4

Crew

8.1

Entertainment

6.9

Overall

7.6

Boarding

7.6

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

FRA - DFW

I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.

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 £473, SWISS can have you in Montreal from London Heathrow Airport in 7h 35m. The distance between London Heathrow Airport and Montreal is about 3239 mi. Both multi-stop and direct flights can be found to your destination and back.

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

    According to our current data, Air France (£99), Virgin Atlantic (£266), and Air Transat (£328) 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 (93%), Thai Airways (91%) or MEA (91%) 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 £1,144, our data shows the cheapest flight currently is £224. When looking at the most popular route, (London Heathrow - Montreal Pierre Elliott Trudeau Intl), you can expect to pay £373 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 £341). Flying from London Heathrow Airport to Montreal in December is currently the most expensive (average of £405). 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 7 November 2025.
AirlineCheapestAverageFlexibilityOn-time
Air FranceCheapest£99Average£461FlexibilityNo cancel feeOn-time77%
Search Air France flights
Virgin AtlanticCheapest£266Average£702FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
Air TransatCheapest£328Average£500FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
United AirlinesCheapest£335Average£506FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
TAP AIR PORTUGALCheapest£345Average£555FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
Air CanadaCheapest£376Average£505FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
LufthansaCheapest£383Average£526FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
British AirwaysCheapest£386Average£536FlexibilityNo cancel feeOn-time70%
Search British Airways flights
FinnairCheapest£408Average£599FlexibilityNo 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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