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

According to our current data, Air Canada (£381), Lufthansa (£382), and SWISS (£384) offers the cheapest pricing from London Heathrow Airport to Montreal. Air Canada is 22% 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 TAP AIR PORTUGAL. According to our data, you can fly for as low as £336. Users have also found prices from £362 and £372 on Aer Lingus and Lufthansa, respectively.

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

While on average a flight from London Heathrow Airport to Montreal is generally £1,108, our data shows the cheapest flight currently is £321. When looking at the most popular route, (London Heathrow - Montreal Pierre Elliott Trudeau Intl), you can expect to pay £290 for that flight.

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 Aegean Airlines (81%), Thai Airways (78%) or MEA (78%) as they are the most reliable in getting you off to your destination on time.

What are the most popular airlines that fly from London Heathrow Airport to Montreal?

The most popular airlines flying from London Heathrow Airport to Montreal are Air Canada, Air France and Finnair. Something to consider prior to booking your flight.

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

Users have found that leaving on a Tuesday can be a cost-effective option. It’s possible to save up to 7% on your flight compared to booking on days when demand is much higher.

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

To save on the cost of your flight from London Heathrow Airport to Montreal, book at least 57 days before your planned departure. Booking around this time can save you about 31% on the cost of this flight compared to booking a flight leaving this week. We have found prices from £416 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as £511.

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

The best pricing can be found in the month of September. Prices to Montreal from London Heathrow Airport average £470. You can even find prices in September for less than £470, as users have found deals to Montreal from as low as £315. The month of August appears to be one of the more expensive times to travel to Montreal from London Heathrow Airport. Flying in the targeted month can save you up to 27%.

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.

£296+ Flights from London Heathrow Airport to Montreal

Cheapflights Tip: The best prices from London Heathrow to Montreal are usually found in September or February, booked 36 days in advance, depart on a Wednesday or Tuesday and return on a Tuesday

Cheap flight deals from Heathrow to Montreal

Round-trip from	£377
One-way from	£296
Popular in	August
Cheapest in	September
Average price	£453
Good round-trip deal	£417 or less
Good one-way deal	£549 or less

SWISS
5/5-21/5
2 total stops
20h 45m total
London to Montreal

Search Deals

5/5
1 total stop
13h 05m total
London to Montreal

Search Deals

Highest demand for flights based on searches. 15% potential increase in price (£67 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease (£14 potential savings vs. average return price).

Search Deals

Average for round-trip flights in April 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

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 15 April 2025.

Mon 5/510:30LHR - YUL

1 stop10h 30mMultiple Airlines

Wed 21/516:40YUL - LHR

1 stop10h 15mMultiple Airlines

Deal found 14/4£377

Mon 9/608:40LHR - YUL

1 stop11h 20mAir Canada

Mon 14/722:25YUL - LHR

Nonstop6h 35mAir Canada

Deal found 14/4£381

Mon 12/510:30LHR - YUL

1 stop10h 30mLufthansa

Mon 2/622:25YUL - LHR

Nonstop6h 35mLufthansa

Deal found 14/4£382

Fri 2/508:40LHR - YUL

1 stop11h 20mSWISS

Tue 13/516:40YUL - LHR

1 stop10h 15mSWISS

Deal found 13/4£384

Tue 29/410:25LHR - YUL

2 stops42h 26mAustrian Airlines

Thu 8/518:35YUL - LHR

1 stop33h 25mAustrian Airlines

Deal found 14/4£403

Wed 7/508:30LHR - YUL

2 stops16h 15mUnited Airlines

Sat 17/518:00YUL - LHR

1 stop11h 10mUnited Airlines

Deal found 14/4£432

Tue 6/519:45LHR - YUL

1 stop24h 15mAir France

Wed 21/517:00YUL - LHR

1 stop12h 30mAir France

Deal found 14/4£434

Tue 29/418:05LHR - YUL

Nonstop7h 10mBritish Airways

Thu 8/522:05YUL - LHR

Nonstop6h 40mBritish Airways

Deal found 14/4£457

Sat 19/410:05LHR - YUL

2 stops17h 39mFinnair

Wed 30/410:39YUL - LHR

2 stops17h 26mFinnair

Deal found 14/4£464

Fri 10/1006:50LHR - YUL

1 stop9h 55mBrussels Airlines

Wed 15/1018:35YUL - LHR

2 stops17h 30mBrussels Airlines

Deal found 14/4£484

Sat 12/718:50LHR - YUL

1 stop26h 15mDelta

Sun 27/721:00YUL - LHR

1 stop11h 45mDelta

Deal found 14/4£492

Sat 31/508:55LHR - YUL

2 stops18h 50mAmerican Airlines

Thu 5/622:05YUL - LHR

Nonstop6h 40mAmerican Airlines

Deal found 14/4£496

Best flights from Heathrow to Montreal
Discover carefully curated flight deals from Heathrow to Montreal that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 15 April 2025.

Mon 5/510:30LHR - YUL

1 stop10h 30mMultiple Airlines

Wed 21/516:40YUL - LHR

1 stop10h 15mMultiple Airlines

Deal found 14/4£377

Mon 9/608:40LHR - YUL

1 stop11h 20mAir Canada

Mon 14/722:25YUL - LHR

Nonstop6h 35mAir Canada

Deal found 14/4£381

Mon 12/510:30LHR - YUL

1 stop10h 30mLufthansa

Mon 2/622:25YUL - LHR

Nonstop6h 35mLufthansa

Deal found 14/4£382

Fri 2/508:40LHR - YUL

1 stop11h 20mSWISS

Tue 13/516:40YUL - LHR

1 stop10h 15mSWISS

Deal found 13/4£384

Tue 29/410:25LHR - YUL

2 stops42h 26mAustrian Airlines

Thu 8/518:35YUL - LHR

1 stop33h 25mAustrian Airlines

Deal found 14/4£403

Wed 7/508:30LHR - YUL

2 stops16h 15mUnited Airlines

Sat 17/518:00YUL - LHR

1 stop11h 10mUnited Airlines

Deal found 14/4£432

Tue 6/519:45LHR - YUL

1 stop24h 15mAir France

Wed 21/517:00YUL - LHR

1 stop12h 30mAir France

Deal found 14/4£434

Tue 29/418:05LHR - YUL

Nonstop7h 10mBritish Airways

Thu 8/522:05YUL - LHR

Nonstop6h 40mBritish Airways

Deal found 14/4£457

Wed 21/506:30LHR - YUL

2 stops21h 46mDelta

Mon 26/506:00YUL - LHR

2 stops23h 45mDelta

Deal found 14/4£473

Mon 5/512:30LHR - YUL

1 stop15h 15mFinnair

Sat 10/516:00YUL - LHR

2 stops36h 30mFinnair

Deal found 14/4£476

Fri 10/1006:50LHR - YUL

1 stop9h 55mBrussels Airlines

Wed 15/1018:35YUL - LHR

2 stops17h 30mBrussels Airlines

Deal found 14/4£484

Sat 31/509:15LHR - YUL

2 stops18h 30mAmerican Airlines

Mon 2/622:10YUL - LHR

Nonstop6h 40mAmerican Airlines

Deal found 14/4£496

Direct flights from Heathrow to Montreal
Explore direct flight options from Heathrow to Montreal based on user searches, and compare prices and availability for your desired travel dates. Data last updated 15 April 2025.

Mon 15/918:05LHR - YUL

Nonstop7h 10mBritish Airways

Mon 22/922:10YUL - LHR

Nonstop6h 40mBritish Airways

Deal found 14/4£392

Fri 30/509:30LHR - YUL

Nonstop7h 10mAir Canada

Fri 6/618:55YUL - LHR

Nonstop6h 35mAir Canada

Deal found 14/4£393

Sun 27/414:05LHR - YUL

Nonstop7h 10mLufthansa

Sun 4/518:55YUL - LHR

Nonstop6h 35mLufthansa

Deal found 13/4£408

Thu 1/509:30LHR - YUL

Nonstop7h 10mMultiple Airlines

Wed 21/518:55YUL - LHR

Nonstop6h 35mMultiple Airlines

Deal found 14/4£416

Sat 24/518:05LHR - YUL

Nonstop7h 10mAmerican Airlines

Thu 29/522:05YUL - LHR

Nonstop6h 40mAmerican Airlines

Deal found 14/4£581

Mon 14/718:05LHR - YUL

Nonstop7h 10mFinnair

Sun 27/722:00YUL - LHR

Nonstop6h 40mFinnair

Deal found 14/4£662

Sun 3/818:05LHR - YUL

Nonstop7h 10mAer Lingus

Sat 23/822:05YUL - LHR

Nonstop6h 40mAer Lingus

Deal found 13/4£1,215

Last-minute flights from Heathrow to Montreal
Discover last-minute flight deals from Heathrow to Montreal. Data last updated 15 April 2025 and is based on user searches.

Fri 18/406:50LHR - YUL

2 stops36h 00mBrussels Airlines

Sat 26/418:35YUL - LHR

2 stops46h 00mBrussels Airlines

Deal found 14/4£538

Sat 19/410:05LHR - YUL

2 stops17h 39mFinnair

Wed 30/410:39YUL - LHR

2 stops17h 26mFinnair

Deal found 14/4£464

Sun 20/406:00LHR - YUL

1 stop12h 50mMultiple Airlines

Sun 27/420:40YUL - LHR

1 stop16h 45mMultiple Airlines

Deal found 13/4£390

Sun 20/406:00LHR - YUL

1 stop12h 50mAustrian Airlines

Fri 25/420:40YUL - LHR

2 stops13h 00mAustrian Airlines

Deal found 14/4£629

Sun 20/406:40LHR - YUL

3 stops22h 19mScandinavian Airlines

Fri 25/412:38YUL - LHR

2 stops22h 22mScandinavian Airlines

Deal found 14/4£1,199

Mon 21/408:30LHR - YUL

1 stop30h 58mUnited Airlines

Thu 1/509:15YUL - LHR

2 stops16h 30mUnited Airlines

Deal found 14/4£387

Mon 21/408:30LHR - YUL

1 stop11h 51mAir Canada

Fri 2/520:15YUL - LHR

1 stop10h 35mAir Canada

Deal found 14/4£406

Mon 21/408:40LHR - YUL

2 stops36h 41mSWISS

Mon 28/418:35YUL - LHR

2 stops32h 20mSWISS

Deal found 14/4£481

Mon 21/410:05LHR - YUL

2 stops17h 39mFinnair

Thu 1/512:55YUL - LHR

2 stops15h 10mFinnair

Deal found 14/4£547

Mon 21/411:45LHR - YUL

1 stop16h 43mVirgin Atlantic

Thu 1/519:00YUL - LHR

1 stop16h 35mVirgin Atlantic

Deal found 14/4£888

Mon 21/418:10LHR - YUL

2 stops34h 41mLOT

Fri 25/419:10YUL - LHR

2 stops21h 50mLOT

Deal found 14/4£1,031

Mon 21/418:30LHR - YUL

1 stop24h 40mAir Algerie

Mon 28/416:10YUL - LHR

1 stop16h 20mAir Algerie

Deal found 14/4£2,137

One-way flights from Heathrow to Montreal
Search for one-way flight options from Heathrow to Montreal. Find affordable one-way fares based on user searches. Data last updated 15 April 2025.

Mon 5/512:55LHR - YUL

1 stop13h 05mMultiple Airlines

Deal found 14/4£296

Sun 8/619:50LHR - YUL

1 stop30h 20mTAP AIR PORTUGAL

Deal found 14/4£336

Thu 1/509:50LHR - YUL

2 stops14h 31mAer Lingus

Deal found 13/4£362

Thu 1/509:30LHR - YUL

1 stop11h 30mLufthansa

Deal found 13/4£372

Sun 7/919:50LHR - YUL

2 stops29h 20mAzores Airlines

Deal found 14/4£400

Wed 30/408:40LHR - YUL

1 stop11h 20mSWISS

Deal found 14/4£403

Sat 26/406:00LHR - YUL

1 stop12h 50mAustrian Airlines

Deal found 14/4£406

Sat 7/614:10LHR - YUL

1 stop15h 33mWestJet

Deal found 14/4£421

Sun 8/609:30LHR - YUL

Nonstop7h 20mAir Canada

Deal found 14/4£489

Tue 8/718:10LHR - YUL

1 stop21h 20mRoyal Air Maroc

Deal found 14/4£517

Cheapflights Fare Finder

Use the filters below to find and compare flights from London Heathrow Airport to Montreal that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

LondonMontreal

LHR - YUL

LHRYUL

London Heathrow

Mon 5/5

10:30-16:00

1 stop10h 30m

Montreal Pierre Elliott Trudeau Intl

Wed 21/5

16:40-07:55

1 stop10h 15m

£377

LondonMontreal

LHR - YUL

LHRYUL

London Heathrow

Mon 9/6

08:40-15:00

1 stop11h 20m

Montreal Pierre Elliott Trudeau Intl

Mon 14/7

22:25-10:00

Nonstop6h 35m

£381

LondonMontreal

LHR - YUL

LHRYUL

London Heathrow

Mon 12/5

10:30-16:00

1 stop10h 30m

Montreal Pierre Elliott Trudeau Intl

Mon 2/6

22:25-10:00

Nonstop6h 35m

£382

LondonMontreal

LHR - YUL

LHRYUL

London Heathrow

Fri 2/5

08:40-15:00

1 stop11h 20m

Montreal Pierre Elliott Trudeau Intl

Tue 13/5

16:40-07:55

1 stop10h 15m

£384

LondonMontreal

LHR - YUL

LHRYUL

London Heathrow

Tue 29/4

10:25-23:51

2 stops42h 26m

Montreal Pierre Elliott Trudeau Intl

Mon 12/5

18:35-21:40

1 stop22h 05m

£403

LondonMontreal

LHR - YUL

LHRYUL

London Heathrow

Wed 7/5

08:30-19:45

2 stops16h 15m

Montreal Pierre Elliott Trudeau Intl

Sun 11/5

11:15-06:45

2 stops14h 30m

£432

LondonMontreal

LHR - YUL

LHRYUL

London Heathrow

Tue 6/5

19:45-15:00

1 stop24h 15m

Montreal Pierre Elliott Trudeau Intl

Wed 21/5

17:00-10:30

1 stop12h 30m

£434

LondonMontreal

LHR - YUL

LHRYUL

London Heathrow

Tue 29/4

18:05-20:15

Nonstop7h 10m

Montreal Pierre Elliott Trudeau Intl

Thu 8/5

22:05-09:45

Nonstop6h 40m

£457

LondonMontreal

LHR - YUL

LHRYUL

London Heathrow

Wed 21/5

06:30-23:16

2 stops21h 46m

Montreal Pierre Elliott Trudeau Intl

Mon 26/5

06:00-10:45

2 stops23h 45m

£473

LondonMontreal

LHR - YUL

LHRYUL

London Heathrow

Mon 5/5

12:30-22:45

1 stop15h 15m

Montreal Pierre Elliott Trudeau Intl

Sat 10/5

16:00-09:30

2 stops36h 30m

£476

Flights are sorted by cheapest return flights first.

Deals found on 14/4

Showing 1-10 of 22 results

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?

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, February is the cheapest month in which you can book a flight from London Heathrow Airport to Montreal (average of £475). Flying from London Heathrow Airport 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 LHR to YMQ?

Unlike in the evening, when flights are generally more expensive, you can save up to 14% on flights from London Heathrow Airport to Montreal by exploring options for tickets in the afternoon.

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

Travellers seeking maximum savings on their London Heathrow Airport to Montreal flight should consider departing on Tuesday afternoons 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

The most flights from LHR to YMQ are scheduled on a Wednesday (17 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (10 on average).

Rainfall in Montreal by month

In terms of precipitation, rainfall in Montreal ranges from 64.0 - 111.0 inches per month. August is typically the wettest month, when rainfall can reach 111.0 mm. February is typically the driest time to visit Montreal when rainfall is around 64.0 mm.

Temperature in Montreal by month

If weather is an important factor for your trip to Montreal, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 22.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -9.0 C).

Reviews of airlines servicing Montreal

Peruse reviews from past customers who have flown with Delta, Finnair and Austrian Airlines from London to Montreal to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very Good

7,917 reviews

Check prices

Reviews

1 / 20

6.0

Good

Colin,Sept 2024

LHR - BOS

Delta One is very poor quality seating for first class. On multiple trips pieces have come off the seat. Staff and food have been good

Delta

8.0

Very Good

7,917 reviews

Delta

8.0

Very Good

7,917 reviews

Check prices

Reviews

1 / 20

6.0

Good

Colin,Sept 2024

LHR - BOS

Delta One is very poor quality seating for first class. On multiple trips pieces have come off the seat. Staff and food have been good

Finnair

7.6

Good

1,269 reviews

Delta

8.0

Very Good

7,917 reviews

Check prices

Reviews

1 / 20

6.0

Good

Colin,Sept 2024

LHR - BOS

Delta One is very poor quality seating for first class. On multiple trips pieces have come off the seat. Staff and food have been good

Austrian Airlines

7.6

Good

775 reviews

Delta

8.0

Very Good

7,917 reviews

Check prices

Reviews

1 / 20

6.0

Good

Colin,Sept 2024

LHR - BOS

Delta One is very poor quality seating for first class. On multiple trips pieces have come off the seat. Staff and food have been good

Azores Airlines

7.5

Good

65 reviews

Delta

8.0

Very Good

7,917 reviews

Check prices

Reviews

1 / 20

6.0

Good

Colin,Sept 2024

LHR - BOS

Delta One is very poor quality seating for first class. On multiple trips pieces have come off the seat. Staff and food have been good

Air France

7.5

Good

1,435 reviews

Delta

8.0

Very Good

7,917 reviews

Check prices

Reviews

1 / 20

6.0

Good

Colin,Sept 2024

LHR - BOS

Delta One is very poor quality seating for first class. On multiple trips pieces have come off the seat. Staff and food have been good

Related info for your journey

What are the cheapest airlines flying from London Heathrow Airport to Montreal round-trip?
According to our current data, Air Canada (£381), Lufthansa (£382), and SWISS (£384) offers the cheapest pricing from London Heathrow Airport to Montreal. Air Canada is 22% 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 TAP AIR PORTUGAL. According to our data, you can fly for as low as £336. Users have also found prices from £362 and £372 on Aer Lingus and Lufthansa, 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 Aegean Airlines (81%), Thai Airways (78%) or MEA (78%) 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 £1,108, our data shows the cheapest flight currently is £321. When looking at the most popular route, (London Heathrow - Montreal Pierre Elliott Trudeau Intl), you can expect to pay £290 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, February is the cheapest month in which you can book a flight from London Heathrow Airport to Montreal (average of £475). Flying from London Heathrow Airport 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

Top 8 airlines flying from Heathrow to Montreal

Airline	Cheapest	Average	Flexibility	On-time
Air France	Cheapest£98	Average£552	FlexibilityNo cancel fee	On-time77%	Search Air France flights
Air Transat	Cheapest£336	Average£507	FlexibilityNo cancel fee	On-time50%	Search Air Transat flights
TAP AIR PORTUGAL	Cheapest£343	Average£543	FlexibilityNo cancel fee	On-timeN/A	Search TAP AIR PORTUGAL flights
Air Canada	Cheapest£378	Average£485	FlexibilityNo cancel fee	On-time67%	Search Air Canada flights
British Airways	Cheapest£379	Average£535	FlexibilityNo cancel fee	On-time70%	Search British Airways flights
Lufthansa	Cheapest£383	Average£529	FlexibilityNo cancel fee	On-time76%	Search Lufthansa flights
Virgin Atlantic	Cheapest£388	Average£662	FlexibilityNo cancel fee	On-time72%	Search Virgin Atlantic flights
Finnair	Cheapest£416	Average£707	FlexibilityNo cancel fee	On-time76%	Search Finnair flights

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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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Cheap flights from London Heathrow Airport to Montreal from £296

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 5/5. Fares are subject to change and may not be available on all flights or dates of travel.

Cheapflights Tip: The best prices from London Heathrow to Montreal are usually found in September or February, booked 36 days in advance, depart on a Wednesday or Tuesday and return on a Tuesday

Cheap flight deals from Heathrow to Montreal

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

Good one-way deal

Find flight deals from Heathrow to Montreal

Cheapest flights from Heathrow to MontrealExplore 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 15 April 2025.

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 15 April 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from London Heathrow Airport to Montreal that are best for you.

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.

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 11 April 2025.

What is the cheapest month to book a flight from London Heathrow Airport to Montreal?

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 15 April 2025.

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.

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 15 April 2025.

Rainfall in Montreal by month

Plan your trip to Montreal by taking into account the average rainfall totals by month.

Temperature in Montreal by month

Plan your trip to Montreal by taking into account the average temperature totals by month.

Reviews of airlines servicing Montreal

Peruse reviews from past customers who have flown with Delta, Finnair and Austrian Airlines from London to Montreal to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

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.

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

What are the cheapest airlines to fly from London Heathrow Airport to Montreal one-way?

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

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

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

How can I find direct flights from Heathrow to Montreal?

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

What is the cheapest month to book a flight from London Heathrow Airport to Montreal?

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Alternative routes for Heathrow to Montreal

See prices for flight routes from nearby airports that may be better suited for you.

Top 8 airlines flying from Heathrow to Montreal

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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 15 April 2025.