Find flights
Deals
When to book
Airlines
FAQs

Cheap flights from London Heathrow Airport to Montreal from £265

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
14 Dec — 21 Dec1
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 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 14 November 2025.

Round-trip from

£398

One-way from

£265

Popular in

December

Cheapest in

June

Average price

£442

Good round-trip deal

£505 or less

Good one-way deal

£374 or less
Air Canada
  • Air Canada
  • 25/1-8/2
  • 3 total stops
  • 26h 30m total
  • London to Montreal
Search Deals
18/11
  • 18/11
  • 1 total stop
  • 33h 25m total
  • London to Montreal
Search Deals
Highest demand for flights based on searches. 5% potential increase in price (£19 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£9 potential savings vs. average return price).
Search Deals
Average for round-trip flights in November 2025
Search Deals
Price to beat on a round-trip flight from London Heathrow to Montreal (YMQ).
Search Deals
Price to beat on a one-way flight from London Heathrow to Montreal (YMQ).
Search Deals

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 14 November 2025.

Sun 16/1113:45LHR - YUL
1 stop30h 25mAir Canada
Sun 30/1108:30YUL - LHR
2 stops19h 50mAir Canada
Deal found 11/11£394
Mon 17/1109:00LHR - YUL
1 stop11h 10mAir Canada
Mon 1/1219:00YUL - LHR
2 stops20h 35mAir Canada
Deal found 12/11£397
Wed 12/1119:25LHR - YUL
1 stop23h 20mAir Canada
Sat 6/1222:30YUL - LHR
2 stops17h 05mAir Canada
Deal found 11/11£400
Thu 27/1109:00LHR - YUL
2 stops15h 53mAir Canada
Tue 2/1222:30YUL - LHR
2 stops17h 05mAir Canada
Deal found 12/11£401
Fri 21/1109:00LHR - YUL
1 stop11h 10mAir Canada
Sun 30/1110:30YUL - LHR
2 stops17h 50mAir Canada
Deal found 13/11£406
Sun 16/1106:50LHR - YUL
1 stop9h 55mAir Canada
Sun 23/1112:10YUL - LHR
2 stops16h 10mAir Canada
Deal found 13/11£408
Wed 19/1113:45LHR - YUL
1 stop30h 25mAir Canada
Wed 26/1120:10YUL - LHR
2 stops19h 25mAir Canada
Deal found 13/11£410
Thu 20/1113:45LHR - YUL
1 stop30h 25mAir Canada
Thu 27/1122:30YUL - LHR
2 stops17h 05mAir Canada
Deal found 13/11£410
Thu 13/1106:00LHR - YUL
1 stop12h 45mAir Canada
Sun 16/1110:30YUL - LHR
2 stops17h 50mAir Canada
Deal found 12/11£411
Tue 2/1209:00LHR - YUL
1 stop11h 10mAir Canada
Mon 8/1222:30YUL - LHR
2 stops17h 05mAir Canada
Deal found 12/11£413

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 14 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

09:00-15:55

1 stop10h 55m

Montreal Pierre Elliott Trudeau Intl

Mon 23/3

17:55-13:00

1 stop15h 05m

£454

LondonMontreal

LHR - YUL

LHRYUL

London Heathrow

Mon 2/2

09:00-15:10

1 stop11h 10m

Montreal Pierre Elliott Trudeau Intl

Thu 12/2

16:45-11:15

1 stop13h 30m

£454

LondonMontreal

LHR - YUL

LHRYUL

London Heathrow

Thu 4/12

16:20-07:32

2 stops20h 12m

Montreal Pierre Elliott Trudeau Intl

Mon 8/12

15:00-10:50

2 stops14h 50m

£465

LondonMontreal

LHR - YUL

LHRYUL

London Heathrow

Tue 2/12

16:20-07:32

2 stops20h 12m

Montreal Pierre Elliott Trudeau Intl

Tue 9/12

14:13-10:25

2 stops15h 12m

£467

LondonMontreal

LHR - YUL

LHRYUL

London Heathrow

Tue 2/12

16:20-07:32

2 stops20h 12m

Montreal Pierre Elliott Trudeau Intl

Mon 8/12

15:00-10:50

2 stops14h 50m

£467

LondonMontreal

LHR - YUL

LHRYUL

London Heathrow

Thu 27/11

13:25-16:10

Nonstop7h 45m

Montreal Pierre Elliott Trudeau Intl

Tue 2/12

19:30-07:10

Nonstop6h 40m

£476

LondonMontreal

LHR - YUL

LHRYUL

London Heathrow

Fri 28/11

13:25-16:10

Nonstop7h 45m

Montreal Pierre Elliott Trudeau Intl

Mon 1/12

19:10-07:10

Nonstop7h 00m

£476

LondonMontreal

LHR - YUL

LHRYUL

London Heathrow

Thu 19/3

13:25-17:05

Nonstop7h 40m

Montreal Pierre Elliott Trudeau Intl

Mon 23/3

20:10-07:10

Nonstop7h 00m

£481

LondonMontreal

LHR - YUL

LHRYUL

London Heathrow

Mon 16/2

08:40-17:20

1 stop13h 40m

Montreal Pierre Elliott Trudeau Intl

Fri 20/2

16:45-08:45

1 stop11h 00m

£488

LondonMontreal

LHR - YUL

LHRYUL

London Heathrow

Sun 28/12

07:30-06:55

2 stops28h 25m

Montreal Pierre Elliott Trudeau Intl

Tue 6/1

20:00-21:20

2 stops20h 20m

£492

Flights are sorted by cheapest return flights first.

Deals found on 11/11

Showing 1-10 of 21 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 7 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 £340). Flying from London Heathrow Airport to Montreal in December is currently the most expensive (average of £392). 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 14 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 14 November 2025.

The most flights from LHR to YMQ are scheduled on a Wednesday (14 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 £372.

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 14 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

Comfort

7.4

Overall

7.6

Crew

8.1

Boarding

7.6

Food

6.7

Entertainment

6.9

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

Comfort

7.4

Overall

7.6

Crew

8.1

Boarding

7.6

Food

6.7

Entertainment

6.9

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
9,016 reviews
Finnair
7.6
Good
1,335 reviews
Check prices

Comfort

7.4

Overall

7.6

Crew

8.1

Boarding

7.6

Food

6.7

Entertainment

6.9

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
10,444 reviews
Finnair
7.6
Good
1,335 reviews
Check prices

Comfort

7.4

Overall

7.6

Crew

8.1

Boarding

7.6

Food

6.7

Entertainment

6.9

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
7,572 reviews
Finnair
7.6
Good
1,335 reviews
Check prices

Comfort

7.4

Overall

7.6

Crew

8.1

Boarding

7.6

Food

6.7

Entertainment

6.9

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
7,516 reviews
Finnair
7.6
Good
1,335 reviews
Check prices

Comfort

7.4

Overall

7.6

Crew

8.1

Boarding

7.6

Food

6.7

Entertainment

6.9

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 £454, SWISS can have you in Montreal from London Heathrow Airport in 10h 55m. 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 (£98), Virgin Atlantic (£265), and Air Transat (£327) 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 cheapest airlines to fly from London Heathrow Airport to Montreal one-way?

    For one-way options, check prices for Virgin Atlantic. According to our data, you can fly for as low as £280. Users have also found prices from £297 and £297 on Finnair and Delta, respectively.

  • 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 £1,138, our data shows the cheapest flight currently is £222. When looking at the most popular route, (London Heathrow - Montreal Pierre Elliott Trudeau Intl), you can expect to pay £375 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 £340). Flying from London Heathrow Airport to Montreal in December is currently the most expensive (average of £392). 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 14 November 2025.
AirlineCheapestAverageFlexibilityOn-time
Air FranceCheapest£98Average£459FlexibilityNo cancel feeOn-time77%
Search Air France flights
Virgin AtlanticCheapest£265Average£698FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
Air TransatCheapest£327Average£498FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
United AirlinesCheapest£333Average£504FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
TAP AIR PORTUGALCheapest£343Average£552FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
Air CanadaCheapest£374Average£502FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
LufthansaCheapest£381Average£524FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
British AirwaysCheapest£384Average£534FlexibilityNo cancel feeOn-time70%
Search British Airways flights
FinnairCheapest£406Average£596FlexibilityNo 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.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.