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

According to our current data, Air Canada (£380), Lufthansa (£381), and SWISS (£387) offers the cheapest pricing from London Heathrow Airport to Montreal. Air Canada is 24% 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 £333. Users have also found prices from £413 and £420 on Aer Lingus and WestJet, 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 £1,451, our data shows the cheapest flight currently is £384. When looking at the most popular route, (London Heathrow - Montreal Pierre Elliott Trudeau Intl), you can expect to pay £326 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 Air Canada (77%), Thai Airways (77%) or Austrian Airlines (77%) 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 37% on the cost of this flight compared to booking a flight leaving this week. We have found prices from £422 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as £518.

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 £482. You can even find prices in September for less than £482, as users have found deals to Montreal from as low as £319. 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 26%.

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.

£333+ 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 64 days in advance, depart on a Wednesday or Tuesday and return on a Tuesday

Cheap flight deals from Heathrow to Montreal

Round-trip from	£380
One-way from	£333
Popular in	August
Cheapest in	September
Average price	£466
Good round-trip deal	£482 or less
Good one-way deal	£579 or less

Air Canada
9/5-18/5
2 total stops
32h 05m total
London to Montreal

Search Deals

TAP AIR PORTUGAL
8/6
1 total stop
30h 20m total
London to Montreal

Search Deals

Highest demand for flights based on searches. 16% potential increase in price (£79 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 4% potential price decrease (£16 potential savings vs. average return price).

Search Deals

Average for round-trip flights in March 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 20 March 2025.

Fri 9/506:00LHR - YUL

1 stop14h 00mAir Canada

Sun 18/521:55YUL - LHR

1 stop18h 05mAir Canada

Deal found 19/3£380

Fri 12/906:30LHR - YUL

1 stop17h 55mLufthansa

Sat 20/918:55YUL - LHR

Nonstop6h 35mLufthansa

Deal found 19/3£381

Fri 2/510:30LHR - YUL

1 stop10h 30mMultiple Airlines

Wed 7/516:40YUL - LHR

1 stop10h 15mMultiple Airlines

Deal found 19/3£384

Tue 25/308:55LHR - YUL

1 stop11h 20mSWISS

Tue 1/416:40YUL - LHR

1 stop10h 15mSWISS

Deal found 18/3£386

Thu 27/316:30LHR - YUL

Nonstop7h 35mBritish Airways

Thu 3/422:05YUL - LHR

Nonstop6h 40mBritish Airways

Deal found 19/3£395

Fri 18/412:00LHR - YUL

2 stops24h 48mUnited Airlines

Wed 23/413:15YUL - LHR

2 stops16h 00mUnited Airlines

Deal found 19/3£398

Mon 12/506:00LHR - YUL

2 stops23h 41mAustrian Airlines

Sun 18/515:30YUL - LHR

2 stops13h 45mAustrian Airlines

Deal found 19/3£420

Thu 26/611:05LHR - YUL

2 stops13h 20mBrussels Airlines

Sun 29/619:05YUL - LHR

1 stop21h 30mBrussels Airlines

Deal found 19/3£441

Thu 29/511:30LHR - YUL

2 stops16h 46mDelta

Mon 2/618:50YUL - LHR

1 stop10h 55mDelta

Deal found 19/3£459

Sat 22/311:45LHR - YUL

1 stop15h 35mFinnair

Sat 29/312:55YUL - LHR

2 stops16h 00mFinnair

Deal found 19/3£467

Fri 18/412:25LHR - YUL

1 stop16h 03mVirgin Atlantic

Fri 25/416:50YUL - LHR

1 stop11h 05mVirgin Atlantic

Deal found 19/3£471

Sun 27/412:25LHR - YUL

1 stop16h 03mAir France

Sat 10/512:56YUL - LHR

1 stop14h 59mAir France

Deal found 18/3£509

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 20 March 2025.

Fri 9/506:00LHR - YUL

1 stop14h 00mAir Canada

Sun 18/521:55YUL - LHR

1 stop18h 05mAir Canada

Deal found 19/3£380

Fri 12/906:30LHR - YUL

1 stop17h 55mLufthansa

Sat 20/918:55YUL - LHR

Nonstop6h 35mLufthansa

Deal found 19/3£381

Fri 2/510:30LHR - YUL

1 stop10h 30mMultiple Airlines

Wed 7/516:40YUL - LHR

1 stop10h 15mMultiple Airlines

Deal found 19/3£384

Fri 25/408:40LHR - YUL

1 stop11h 20mSWISS

Thu 8/516:40YUL - LHR

1 stop18h 45mSWISS

Deal found 18/3£387

Fri 18/412:00LHR - YUL

2 stops24h 48mUnited Airlines

Wed 23/413:15YUL - LHR

2 stops16h 00mUnited Airlines

Deal found 19/3£398

Mon 12/506:00LHR - YUL

2 stops23h 41mAustrian Airlines

Sun 18/515:30YUL - LHR

2 stops13h 45mAustrian Airlines

Deal found 19/3£420

Thu 26/611:05LHR - YUL

2 stops13h 20mBrussels Airlines

Sun 29/619:05YUL - LHR

1 stop21h 30mBrussels Airlines

Deal found 19/3£441

Wed 2/411:45LHR - YUL

1 stop10h 10mDelta

Wed 9/407:05YUL - LHR

2 stops22h 40mDelta

Deal found 19/3£444

Sun 27/412:25LHR - YUL

1 stop16h 03mAir France

Thu 8/519:00YUL - LHR

1 stop16h 35mAir France

Deal found 18/3£447

Fri 18/412:25LHR - YUL

1 stop16h 03mVirgin Atlantic

Fri 25/416:50YUL - LHR

1 stop11h 05mVirgin Atlantic

Deal found 19/3£471

Fri 18/410:05LHR - YUL

2 stops28h 45mFinnair

Fri 9/507:47YUL - LHR

2 stops18h 58mFinnair

Deal found 19/3£479

Wed 9/418:05LHR - YUL

Nonstop7h 10mBritish Airways

Wed 16/422:10YUL - LHR

Nonstop6h 40mBritish Airways

Deal found 19/3£516

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 20 March 2025.

Mon 31/309:30LHR - YUL

Nonstop7h 10mAir Canada

Sat 26/422:20YUL - LHR

Nonstop6h 40mAir Canada

Deal found 19/3£383

Thu 1/509:30LHR - YUL

Nonstop7h 10mMultiple Airlines

Tue 6/522:25YUL - LHR

Nonstop6h 35mMultiple Airlines

Deal found 19/3£410

Fri 25/409:30LHR - YUL

Nonstop7h 10mLufthansa

Thu 8/522:25YUL - LHR

Nonstop6h 35mLufthansa

Deal found 18/3£415

Thu 1/518:05LHR - YUL

Nonstop7h 10mBritish Airways

Sat 1/1121:50YUL - LHR

Nonstop6h 50mBritish Airways

Deal found 19/3£512

Fri 2/518:05LHR - YUL

Nonstop7h 10mAmerican Airlines

Thu 8/522:05YUL - LHR

Nonstop6h 40mAmerican Airlines

Deal found 19/3£528

Fri 29/818:05LHR - YUL

Nonstop7h 10mFinnair

Tue 16/922:10YUL - LHR

Nonstop6h 40mFinnair

Deal found 19/3£569

Sat 30/818:05LHR - YUL

Nonstop7h 10mAer Lingus

Thu 18/922:05YUL - LHR

Nonstop6h 40mAer Lingus

Deal found 19/3£637

Last-minute flights from Heathrow to Montreal
Discover last-minute flight deals from Heathrow to Montreal. Data last updated 20 March 2025 and is based on user searches.

Sat 22/311:45LHR - YUL

1 stop15h 35mFinnair

Sat 29/312:55YUL - LHR

2 stops16h 00mFinnair

Deal found 19/3£467

Tue 25/306:00LHR - YUL

1 stop14h 15mMultiple Airlines

Tue 1/422:20YUL - LHR

Nonstop6h 40mMultiple Airlines

Deal found 18/3£384

Tue 25/308:55LHR - YUL

1 stop11h 20mSWISS

Tue 1/416:40YUL - LHR

1 stop10h 15mSWISS

Deal found 18/3£386

Tue 25/315:00LHR - YUL

Nonstop7h 40mLufthansa

Tue 1/422:20YUL - LHR

Nonstop6h 40mLufthansa

Deal found 18/3£412

Tue 25/306:50LHR - YUL

2 stops14h 27mUnited Airlines

Tue 8/413:25YUL - LHR

2 stops16h 15mUnited Airlines

Deal found 19/3£443

Tue 25/318:10LHR - YUL

2 stops34h 38mLOT

Thu 27/320:15YUL - LHR

2 stops21h 45mLOT

Deal found 19/3£1,603

Tue 25/319:35LHR - YUL

1 stop21h 40mAir France

Thu 27/320:05YUL - LHR

1 stop31h 55mAir France

Deal found 19/3£1,718

Wed 26/308:40LHR - YUL

1 stop13h 30mDelta

Mon 31/306:00YUL - LHR

2 stops19h 45mDelta

Deal found 19/3£433

Wed 26/308:15LHR - YUL

2 stops28h 17mTAP AIR PORTUGAL

Thu 27/315:25YUL - LHR

2 stops22h 05mTAP AIR PORTUGAL

Deal found 19/3£959

Wed 26/316:30LHR - YUL

Nonstop7h 35mAmerican Airlines

Thu 27/321:50YUL - LHR

Nonstop6h 50mAmerican Airlines

Deal found 19/3£1,318

Thu 27/315:00LHR - YUL

Nonstop7h 40mAir Canada

Mon 31/322:20YUL - LHR

Nonstop6h 40mAir Canada

Deal found 19/3£394

Thu 27/316:30LHR - YUL

Nonstop7h 35mBritish Airways

Thu 3/422:05YUL - LHR

Nonstop6h 40mBritish Airways

Deal found 19/3£395

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 20 March 2025.

Sun 8/619:50LHR - YUL

1 stop30h 20mTAP AIR PORTUGAL

Deal found 19/3£333

Fri 23/521:10LHR - YUL

2 stops26h 26mMultiple Airlines

Deal found 19/3£336

Thu 12/621:10LHR - YUL

2 stops27h 11mAer Lingus

Deal found 18/3£413

Mon 15/913:55LHR - YUL

1 stop15h 46mWestJet

Deal found 19/3£420

Sun 20/418:05LHR - YUL

Nonstop7h 10mFinnair

Deal found 19/3£424

Sun 20/418:05LHR - YUL

Nonstop7h 10mBritish Airways

Deal found 19/3£425

Wed 21/518:45LHR - YUL

2 stops30h 25mAzores Airlines

Deal found 19/3£433

Mon 18/812:40LHR - YUL

1 stop10h 35mLufthansa

Deal found 19/3£434

Tue 25/308:55LHR - YUL

1 stop11h 20mSWISS

Deal found 19/3£468

Wed 9/406:00LHR - YUL

1 stop12h 50mAustrian Airlines

Deal found 19/3£477

Sun 8/615:00LHR - YUL

1 stop28h 10mAir Algerie

Deal found 19/3£534

Wed 23/718:50LHR - YUL

1 stop20h 40mRoyal Air Maroc

Deal found 19/3£589

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

Fri 9/5

06:00-15:00

1 stop14h 00m

Montreal Pierre Elliott Trudeau Intl

Sun 18/5

21:55-21:00

1 stop18h 05m

£380

LondonMontreal

LHR - YUL

LHRYUL

London Heathrow

Fri 12/9

06:30-19:25

1 stop17h 55m

Montreal Pierre Elliott Trudeau Intl

Sat 20/9

18:55-06:30

Nonstop6h 35m

£381

LondonMontreal

LHR - YUL

LHRYUL

London Heathrow

Fri 2/5

10:30-16:00

1 stop10h 30m

Montreal Pierre Elliott Trudeau Intl

Wed 7/5

16:40-07:55

1 stop10h 15m

£384

LondonMontreal

LHR - YUL

LHRYUL

London Heathrow

Fri 25/4

08:40-15:00

1 stop11h 20m

Montreal Pierre Elliott Trudeau Intl

Thu 8/5

16:40-16:25

1 stop18h 45m

£387

LondonMontreal

LHR - YUL

LHRYUL

London Heathrow

Fri 18/4

12:00-07:48

2 stops24h 48m

Montreal Pierre Elliott Trudeau Intl

Wed 23/4

13:15-10:15

2 stops16h 00m

£398

LondonMontreal

LHR - YUL

LHRYUL

London Heathrow

Mon 12/5

06:00-00:41

2 stops23h 41m

Montreal Pierre Elliott Trudeau Intl

Sun 18/5

15:30-10:15

2 stops13h 45m

£420

LondonMontreal

LHR - YUL

LHRYUL

London Heathrow

Thu 26/6

11:05-19:25

2 stops13h 20m

Montreal Pierre Elliott Trudeau Intl

Sun 29/6

19:05-21:35

1 stop21h 30m

£441

LondonMontreal

LHR - YUL

LHRYUL

London Heathrow

Wed 2/4

11:45-16:55

1 stop10h 10m

Montreal Pierre Elliott Trudeau Intl

Wed 9/4

07:05-10:45

2 stops22h 40m

£444

LondonMontreal

LHR - YUL

LHRYUL

London Heathrow

Sun 27/4

12:25-23:28

1 stop16h 03m

Montreal Pierre Elliott Trudeau Intl

Thu 8/5

19:00-16:35

1 stop16h 35m

£447

LondonMontreal

LHR - YUL

LHRYUL

London Heathrow

Fri 18/4

12:25-23:28

1 stop16h 03m

Montreal Pierre Elliott Trudeau Intl

Fri 25/4

16:50-08:55

1 stop11h 05m

£471

Flights are sorted by cheapest return flights first.

Deals found on 19/3

Showing 1-10 of 30 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 64 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 13% 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 Friday 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 Monday (13 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (9 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, KLM and Azores 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

7,896 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

7,896 reviews

Delta

8.0

Very Good

7,896 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

KLM

7.8

Good

1,319 reviews

Delta

8.0

Very Good

7,896 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

7.6

Good

63 reviews

Delta

8.0

Very Good

7,896 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

1,266 reviews

Delta

8.0

Very Good

7,896 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

768 reviews

Delta

8.0

Very Good

7,896 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 (£380), Lufthansa (£381), and SWISS (£387) offers the cheapest pricing from London Heathrow Airport to Montreal. Air Canada is 24% 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 £333. Users have also found prices from £413 and £420 on Aer Lingus and WestJet, 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 Air Canada (77%), Thai Airways (77%) or Austrian Airlines (77%) 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 £1,451, our data shows the cheapest flight currently is £384. When looking at the most popular route, (London Heathrow - Montreal Pierre Elliott Trudeau Intl), you can expect to pay £326 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£99	Average£560	FlexibilityNo cancel fee	On-time77%	Search Air France flights
Air Transat	Cheapest£341	Average£541	FlexibilityNo cancel fee	On-time50%	Search Air Transat flights
British Airways	Cheapest£384	Average£551	FlexibilityNo cancel fee	On-time70%	Search British Airways flights
Air Canada	Cheapest£385	Average£489	FlexibilityNo cancel fee	On-time67%	Search Air Canada flights
Lufthansa	Cheapest£390	Average£537	FlexibilityNo cancel fee	On-time76%	Search Lufthansa flights
Virgin Atlantic	Cheapest£393	Average£671	FlexibilityNo cancel fee	On-time72%	Search Virgin Atlantic flights
Finnair	Cheapest£437	Average£700	FlexibilityNo cancel fee	On-time76%	Search Finnair flights
TAP AIR PORTUGAL	Cheapest£448	Average£551	FlexibilityNo cancel fee	On-timeN/A	Search TAP AIR PORTUGAL 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.

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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 £333

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 8/6. 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 64 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 20 March 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 20 March 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 14 March 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 20 March 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 20 March 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, KLM and Azores 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 20 March 2025.