Find flights
Deals
When to book
Airlines
FAQs
United Kingdom
GBP

Cheap flights from London Heathrow Airport to Montreal from £260

LHR — YMQ
6 Nov — 13 Nov1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from London Heathrow to Montreal are usually found in November or January, booked 46 days in advance, depart on a Friday or Monday and return on a Sunday

Cheap flight deals from Heathrow to Montreal

Enter your travel dates to find the best prices.

Cheapest flights from Heathrow to Montreal

Wed 25/1106:00 -
1 stop18h 55m
Sun 29/1121:45 -
1 stop19h 55m
Deal found 4/10£391
Tue 17/1120:50 -
1 stop20h 40m
Tue 24/1118:30 -
1 stop20h 35m
Deal found 4/10£437
Thu 29/1016:45 -
Nonstop7h 30m
Thu 5/1121:15 -
Nonstop6h 50m
Deal found 3/10£454
Thu 26/1106:20 -
1 stop11h 20m
Fri 4/1220:10 -
1 stop15h 25m
Deal found 3/10£457
Thu 29/1009:00 -
1 stop12h 48m
Thu 5/1119:10 -
Nonstop7h 00m
Deal found 3/10£463
Tue 3/1108:55 -
1 stop11h 45m
Tue 10/1121:25 -
1 stop19h 00m
Deal found 4/10£466
Fri 13/1106:20 -
1 stop11h 20m
Sun 22/1120:10 -
1 stop20h 15m
Deal found 7/10£478
Wed 11/1106:20 -
1 stop14h 20m
Sun 15/1121:25 -
1 stop19h 00m
Deal found 4/10£480

Find flight deals from Heathrow to Montreal

Round-trip from

£391

One-way from

£260

Popular in

July

Cheapest in

November

Average price

£507

Good round-trip deal

£470 or less

Good one-way deal

£386 or less
TAP AIR PORTUGAL
  • TAP AIR PORTUGAL
  • 25/11-29/11
  • 2 total stops
  • 38h 50m total
  • London to Montreal
Search Deals
20/11-31/12
  • 20/11-31/12
  • 2 total stops
  • 51h 50m total
  • London to Montreal
Search Deals
Highest demand for flights based on searches. 4% potential increase in price (£18 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (£8 potential savings vs. average return price).
Search Deals
Average for round-trip flights in October 2026
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

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

Cheapest return flight

LondonMontreal

LHR London Heathrow - YUL Montreal Pierre Elliott Trudeau Intl

LHRYUL

London Heathrow

Wed 2/12

06:30-17:15

1 stop15h 45m

Montreal Pierre Elliott Trudeau Intl

Wed 31/12

00:00-06:00

Nonstop0h 00m

£375
Fastest return journey

LondonMontreal

LHR London Heathrow - YUL Montreal Pierre Elliott Trudeau Intl

LHRYUL

London Heathrow

Mon 30/11

16:45-19:15

Nonstop7h 30m

Montreal Pierre Elliott Trudeau Intl

Wed 31/12

00:00-06:00

Nonstop0h 00m

£377

LondonMontreal

LHR London Heathrow - YUL Montreal Pierre Elliott Trudeau Intl

LHRYUL

London Heathrow

Thu 26/11

16:45-19:15

Nonstop7h 30m

Montreal Pierre Elliott Trudeau Intl

Wed 31/12

00:00-06:00

Nonstop0h 00m

£377

LondonMontreal

LHR London Heathrow - YUL Montreal Pierre Elliott Trudeau Intl

LHRYUL

London Heathrow

Sun 6/12

16:45-19:15

Nonstop7h 30m

Montreal Pierre Elliott Trudeau Intl

Wed 31/12

00:00-06:00

Nonstop0h 00m

£389

LondonMontreal

LHR London Heathrow - YUL Montreal Pierre Elliott Trudeau Intl

LHRYUL

London Heathrow

Fri 4/12

16:45-19:15

Nonstop7h 30m

Montreal Pierre Elliott Trudeau Intl

Wed 31/12

00:00-06:00

Nonstop0h 00m

£389

LondonMontreal

LHR London Heathrow - YUL Montreal Pierre Elliott Trudeau Intl

LHRYUL

London Heathrow

Sat 5/12

16:45-19:15

Nonstop7h 30m

Montreal Pierre Elliott Trudeau Intl

Wed 31/12

00:00-06:00

Nonstop0h 00m

£389

LondonMontreal

LHR London Heathrow - YUL Montreal Pierre Elliott Trudeau Intl

LHRYUL

London Heathrow

Tue 3/11

14:50-13:20

1 stop27h 30m

Montreal Pierre Elliott Trudeau Intl

Wed 31/12

00:00-06:00

Nonstop0h 00m

£393

LondonMontreal

LHR London Heathrow - YUL Montreal Pierre Elliott Trudeau Intl

LHRYUL

London Heathrow

Thu 24/12

16:45-19:15

Nonstop7h 30m

Montreal Pierre Elliott Trudeau Intl

Wed 31/12

00:00-06:00

Nonstop0h 00m

£409

LondonMontreal

LHR London Heathrow - YUL Montreal Pierre Elliott Trudeau Intl

LHRYUL

London Heathrow

Thu 24/12

14:45-20:45

1 stop11h 00m

Montreal Pierre Elliott Trudeau Intl

Wed 31/12

00:00-06:00

Nonstop0h 00m

£416

LondonMontreal

LHR London Heathrow - YUL Montreal Pierre Elliott Trudeau Intl

LHRYUL

London Heathrow

Mon 4/1

17:20-18:50

2 stops30h 30m

Montreal Pierre Elliott Trudeau Intl

Wed 31/12

00:00-06:00

Nonstop0h 00m

£420

Flights are sorted by cheapest return flights first.

Deals found on 3/10

Showing 1-10 of 23 resultsSorted by cheapest first
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

Cheapflights Insights

Everything you need to know about your flight from London Heathrow Airport to Montreal

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

Currently, January is the cheapest month in which you can book a flight from London Heathrow Airport to Montreal (average of £481). Flying from London Heathrow Airport to Montreal in July is currently the most expensive (average of £680). 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?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from London Heathrow Airport to Montreal as you normally would.

Weekly flight availability from London Heathrow Airport to Montreal

The most flights from LHR to YMQ are scheduled on a Tuesday (17 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (12 on average).

How much does it cost for a return flight from London Heathrow Airport to Montreal?

Airfare is below average for this route at the moment.
London Heathrow Airport to Montreal flights typically cost between £414 and £579 in November.
The cheapest return price found within the last 5 days was £391 on TAP AIR PORTUGAL (25 Nov–29 Nov).

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

Newark (EWR) – 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?

Amsterdam (AMS) is the most affordable one-stop option, with an average return flight price of £316.

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

Flights via Amsterdam (AMS) have the shortest average one-way travel time for one-stop routes: 10h 10m.

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

Flights via Zurich (ZRH) offer the fastest connection on this route, with an average stopover time of 0h 55m.

How often are flights from London to Montreal delayed?

About 10% of weekly flights between London and Montreal have experienced delays in the past year, with the average delay time being 153 minutes.

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

Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the evening tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Sunday tends to have the lowest number of delays on this route, whereas Friday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on London to Montreal flights?

Over the past year, Air Canada have had the lowest number of delays on this route, with just 7% of flights being delayed.

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 63 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.

Reviews of airlines servicing Montreal

See what other customers who have flown with Air Transat,TAP AIR PORTUGAL, 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.
Air Transat
7.7
Good
583 reviews
Check prices

Comfort

7.3

Boarding

8.0

Entertainment

7.1

Overall

7.7

Crew

8.5

Food

6.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Sept 2025

YYZ - YUL

Easy, fast onboarding, very friendly staff. Seats were very narrow, OK for me but we were elbow to elbow with both neighbours of small size. The seat width should be indicated at the time of booking to prevent an uncomfortable situation with oversized travellers.
Air Transat
7.7
Good
583 reviews
Air Transat
7.7
Good
583 reviews
Check prices

Comfort

7.3

Boarding

8.0

Entertainment

7.1

Overall

7.7

Crew

8.5

Food

6.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Sept 2025

YYZ - YUL

Easy, fast onboarding, very friendly staff. Seats were very narrow, OK for me but we were elbow to elbow with both neighbours of small size. The seat width should be indicated at the time of booking to prevent an uncomfortable situation with oversized travellers.
TAP AIR PORTUGAL
7.2
Good
2,383 reviews
Air Transat
7.7
Good
583 reviews
Check prices

Comfort

7.3

Boarding

8.0

Entertainment

7.1

Overall

7.7

Crew

8.5

Food

6.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Sept 2025

YYZ - YUL

Easy, fast onboarding, very friendly staff. Seats were very narrow, OK for me but we were elbow to elbow with both neighbours of small size. The seat width should be indicated at the time of booking to prevent an uncomfortable situation with oversized travellers.
Air Canada
7.1
Good
11,739 reviews
Air Transat
7.7
Good
583 reviews
Check prices

Comfort

7.3

Boarding

8.0

Entertainment

7.1

Overall

7.7

Crew

8.5

Food

6.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Sept 2025

YYZ - YUL

Easy, fast onboarding, very friendly staff. Seats were very narrow, OK for me but we were elbow to elbow with both neighbours of small size. The seat width should be indicated at the time of booking to prevent an uncomfortable situation with oversized travellers.
Lufthansa
6.8
Okay
8,266 reviews
Air Transat
7.7
Good
583 reviews
Check prices

Comfort

7.3

Boarding

8.0

Entertainment

7.1

Overall

7.7

Crew

8.5

Food

6.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Sept 2025

YYZ - YUL

Easy, fast onboarding, very friendly staff. Seats were very narrow, OK for me but we were elbow to elbow with both neighbours of small size. The seat width should be indicated at the time of booking to prevent an uncomfortable situation with oversized travellers.
British Airways
6.7
Okay
8,252 reviews
Air Transat
7.7
Good
583 reviews
Check prices

Comfort

7.3

Boarding

8.0

Entertainment

7.1

Overall

7.7

Crew

8.5

Food

6.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Sept 2025

YYZ - YUL

Easy, fast onboarding, very friendly staff. Seats were very narrow, OK for me but we were elbow to elbow with both neighbours of small size. The seat width should be indicated at the time of booking to prevent an uncomfortable situation with oversized travellers.

Related info for your journey

  • How long is the flight from London Heathrow Airport to Montreal?

    For as low as £497, United Airlines can have you in Montreal from London Heathrow Airport in 19h 12m. The distance between London Heathrow Airport and Montreal is about 3239 mi.

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

    According to our current data, Virgin Atlantic (£316), Air Canada (£383), and Finnair (£394) offers the cheapest pricing from London Heathrow Airport to Montreal. Virgin Atlantic is 42% 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 British Airways. According to our data, you can fly for as low as £296. Users have also found prices from £298 and £331 on Virgin Atlantic and TAP AIR PORTUGAL, 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 MEA (93%), Egyptair (92%) or Aegean Airlines (92%) 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 £1,503, our data shows the cheapest flight currently is £320. When looking at the most popular route, (London Heathrow - Montreal Pierre Elliott Trudeau Intl), you can expect to pay £464 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, January is the cheapest month in which you can book a flight from London Heathrow Airport to Montreal (average of £481). Flying from London Heathrow Airport to Montreal in July is currently the most expensive (average of £680). 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 6 airlines flying from Heathrow to Montreal

AirlineCheapestAverageFlexibilityOn-time
Virgin AtlanticCheapest£316Average£673FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
Air CanadaCheapest£383Average£568FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
FinnairCheapest£394Average£707FlexibilityNo cancel feeOn-time76%
Search Finnair flights
LufthansaCheapest£403Average£563FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
British AirwaysCheapest£413Average£699FlexibilityNo cancel feeOn-time70%
Search British Airways flights
SWISSCheapest£463Average£619FlexibilityNo cancel feeOn-time79%
Search SWISS flights

Fly with Cheapflights

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.