LHR - YUL

C$ 544 Find Cheap Flights from London Heathrow Airport to Montreal – Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Heathrow to Montreal departing on 2/9. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
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Everything you should know

Cheapest round-trip
C$ 789
Typical prices: C$ 883-C$ 1,329
Multiple Airlines
Thu 20/8Thu 27/8
LHR - YUL • 1 stop
Cheapest direct flights
C$ 791
Typical prices: C$ 799-C$ 1,195
Lufthansa
Thu 27/8Sat 5/9
LHR - YUL • Direct
Advice from real travellers
AI-powered summary based on content written by travel experts. AI can make mistakes.
Lufthansa Premium Economy adds more space and an extra checked bag than standard fares.
BA premium economy adds legroom, while Air Canada offers free Wi-Fi messaging.
Expert advice
Expert advice
Expert advice
Expert advice
Top airlines
Cheapest • from C$ 791 (round-trip)
Best reviews • 7.1 score
Airline reviews
Airline reviews
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Airline reviews
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Direct flights
You can fly direct with Air Canada and British Airways. Average duration is 7h 25m
Direct flights
Direct flights
+1
+1
Direct flights
Direct flights
+1
Avoid delays
Most punctual • 94% on-time
Best time • Fewest delays
Insights
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Insights
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When to book
in advance
Our data shows that travellers who book at least 2 weeks in advance save around 17% compared to booking last minute.
Insights
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Insights
When to travel
Cheapest • 12% price drop
Most popular
Good to know
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We hope you love your trip to Montreal!
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Flight Deals

Cheap Flights from Heathrow to Montreal (LHR-YUL)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Heathrow to Montreal that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Heathrow to Montreal

Thu, 20 Aug - Thu, 27 Aug
Multiple Airlines Logo
8:05 p.m. - 3:00 p.m.
LHR
-
YUL
23h 55m
1 stop
Multiple Airlines Logo
10:10 p.m. - 10:00 a.m.
YUL
-
LHR
6h 50mdirect
C$ 789Multiple Airlines
Tue, 25 Aug - Thu, 3 Sep
Air Canada Logo
5:50 p.m. - 11:00 a.m.
LHR
-
YUL
22h 10m
1 stop
Air Canada Logo
10:00 p.m. - 9:00 p.m.
YUL
-
LHR
18h 00m
1 stop
C$ 791Air Canada
Sat, 29 Aug - Fri, 11 Sep
Multiple Airlines Logo
8:05 p.m. - 3:00 p.m.
LHR
-
YUL
23h 55m
1 stop
Multiple Airlines Logo
4:40 p.m. - 8:35 a.m.
YUL
-
LHR
10h 55m
1 stop
C$ 792Multiple Airlines
Fri, 21 Aug - Thu, 27 Aug
Multiple Airlines Logo
5:50 p.m. - 11:00 a.m.
LHR
-
YUL
22h 10m
1 stop
Multiple Airlines Logo
10:40 a.m. - 6:30 a.m.
YUL
-
LHR
14h 50m
1 stop
C$ 793Multiple Airlines
Tue, 13 Oct - Tue, 15 Jun
Air France Logo
8:55 a.m. - 3:05 p.m.
LHR
-
YUL
11h 10m
1 stop
Air France Logo
7:00 p.m. - 10:30 a.m.
YUL
-
LHR
10h 30m
1 stop
C$ 795Air France
Mon, 5 Oct - Thu, 12 Nov
Lufthansa Logo
7:30 a.m. - 4:00 p.m.
LHR
-
YUL
13h 30m
1 stop
Lufthansa Logo
7:10 p.m. - 7:10 a.m.
YUL
-
LHR
7h 00mdirect
C$ 796Lufthansa
Thu, 20 Aug - Thu, 27 Aug
Air Canada Logo
5:15 p.m. - 3:00 p.m.
LHR
-
YUL
26h 45m
1 stop
Air Canada Logo
10:10 p.m. - 10:00 a.m.
YUL
-
LHR
6h 50mdirect
C$ 798Air Canada
Mon, 24 Aug - Mon, 31 Aug
Air Canada Logo
2:05 p.m. - 4:40 p.m.
LHR
-
YUL
7h 35mdirect
Air Canada Logo
10:10 p.m. - 10:00 a.m.
YUL
-
LHR
6h 50mdirect
C$ 799Air Canada
Fri, 2 Oct - Wed, 7 Oct
SWISS Logo
6:00 a.m. - 3:00 p.m.
LHR
-
YUL
14h 00m
1 stop
SWISS Logo
6:35 p.m. - 1:00 p.m.
YUL
-
LHR
13h 25m
2 stops
C$ 801SWISS
Wed, 9 Sep - Fri, 18 Sep
Air Canada Logo
8:40 a.m. - 3:00 p.m.
LHR
-
YUL
11h 20m
1 stop
Air Canada Logo
8:40 a.m. - 6:35 a.m.
YUL
-
LHR
16h 55m
2 stops
C$ 802Air Canada
Booking Insights

KAYAK's insights & trends for Heathrow to Montreal flights

Get data-powered insights and trends into flights from Heathrow to Montreal to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from London Heathrow Airport to Montreal Pierre Elliott Trudeau Intl Airport?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from London Heathrow Airport to Montreal Pierre Elliott Trudeau Intl Airport departing in August.

What’s the cheapest day of the week to fly from London Heathrow Airport to Montreal?

The average price of all round-trip flights from London Heathrow Airport to Montreal Pierre Elliott Trudeau Intl Airport clicked on KAYAK for each day over the last 12 months.

When flying from London Heathrow Airport to Montreal, you should consider leaving on a Sunday and avoid Thursdays if you are looking for the best rates. For your return to London Heathrow Airport, you’ll find the best rates on Sundays and the most expensive ones on Tuesdays.

What is the cheapest month to fly from London Heathrow Airport to Montreal Pierre Elliott Trudeau Intl Airport?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from London Heathrow Airport to Montreal Pierre Elliott Trudeau Intl Airport, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from London Heathrow Airport to Montreal Pierre Elliott Trudeau Intl Airport is September, where tickets cost C$ 886 (return) on average. On the other hand, the most expensive months are July and August, where the average cost of round-trip tickets is C$ 1,265 and C$ 1,110 respectively.

Can I save money by flying with a layover from London Heathrow Airport to Montreal Pierre Elliott Trudeau Intl Airport?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 1 stop layover the cheapest option at C$ 1,040 on average.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from London Heathrow Airport to Montreal Pierre Elliott Trudeau Intl Airport, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from London Heathrow Airport to Montreal Pierre Elliott Trudeau Intl Airport, you should book around 2 weeks before departure, which saves you about 17% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 15 weeks before departure.

Expert advice

Expert advice for your flight from Heathrow to Montreal

 
AI-powered summary based on content written by travel experts. AI can make mistakes.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Stefanie Waldek

Stefanie Waldek

Expert on Air Canada

Stefanie Waldek is a freelance space, travel, and design writer based in Saratoga Springs, NY. Her words have appeared in Space.com, Travel + Leisure, Condé Nast Traveler, Architectural Digest, and House Beautiful, among other publications. An expert in aviation and expedition cruising, Stefanie is frequently up in the air or on the sea, likely en route to Antarctica or the Arctic.

Duncan Madden

Duncan Madden

Expert on British Airways and LHR

Duncan is a freelance travel writer, copywriter and book author in constant search of travel stories and the perpetual sensation of being on holiday. He’s never happier than when on a dusty trail in search of empty waves or ducking under the piste tape in search of snowbound solitude. British born, living in Germany, but happiest heading for the horizon. His first book, Found in Translation, explores the etymologies and stories of country names around the world and is out now.

Jessica Macdonald

Jessica Macdonald

Expert on Lufthansa

Currently based in Scotland after living in South Africa and the United States, Jessica has been writing travel and aviation content for more than 10 years. She regularly contributes to Travel + Leisure and TripSavvy, and has had work published by Condé Nast Traveller and The Independent. She has traveled to more than 50 countries across six continents.

Mark Stachiew

Mark Stachiew

Expert on YUL

Mark Stachiew has been exploring the world and writing about it for more than 30 years. His travel stories have appeared in numerous newspapers, magazines and online publications in Canada, the United States and beyond.

Good to know

Low seasonFebruary
Cheapest flightC$ 544
Best time to beat the crowds (9% less expensive on average)
Most popular time to fly (25% more expensive on average)
Flight from London Heathrow Airport to Montreal

When to book flights from Heathrow to Montreal

Are your dates flexible? Find out the best times to travel from Heathrow to Montreal based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking London Heathrow Airport to Montreal flights

  • What is the cheapest flight from London Heathrow Airport to Montreal Pierre Elliott Trudeau Intl Airport?

    In the last 5 days, the lowest price for a flight from London Heathrow Airport to Montreal Pierre Elliott Trudeau Intl Airport was C$ 544 for a one-way ticket and C$ 789 for a round-trip.

  • Which airports will I be using when flying from London Heathrow Airport to Montreal?

    When flying out of London Heathrow Airport you will be using London Heathrow. You will be landing at Montreal, also known as Montreal Pierre Elliott Trudeau Intl.

  • Which airlines offer Wi-Fi service onboard planes from London Heathrow Airport to Montreal?

    Lufthansa, and Air Canada offer inflight Wi-Fi service on the London Heathrow Airport to Montreal flight route.

  • Which aircraft models fly most regularly from London Heathrow Airport to Montreal?

    The Boeing 787-8 Dreamliner is the aircraft model that flies most regularly on the London Heathrow Airport to Montreal flight route.

  • Which airline alliances offer flights from London Heathrow Airport to Montreal?

    oneworld, and Star Alliance are the airline alliances operating flights between London Heathrow Airport and Montreal, with oneworld being the most commonly used for this route.

  • On which days can I fly direct from London Heathrow Airport to Montreal?

    There are direct flights from London Heathrow Airport to Montreal on a daily basis.

  • Which is the best airline for flights from London to Montreal, Air Canada or Lufthansa?

    The two airlines most popular with KAYAK users for flights from London to Montreal are Air Canada and Lufthansa. With an average price for the route of C$ 1,071 and an overall rating of 7.1, Air Canada is the most popular choice. Lufthansa is also a great choice for the route, with an average price of C$ 918 and an overall rating of 6.8.

  • How does KAYAK find such low prices on flights from London Heathrow Airport to Montreal?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from London Heathrow Airport to Montreal.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from London Heathrow Airport to Montreal?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Montreal from London Heathrow Airport is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights from London Heathrow Airport to Montreal?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Montreal with an airline and back to London Heathrow Airport with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from London Heathrow Airport to Montreal?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Montreal from London Heathrow Airport up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from London Heathrow Airport to Montreal Pierre Elliott Trudeau Intl Airport

  • Looking for a cheap flight? 25% of our users found flights on this route for C$ 686 or less one-way and C$ 1,118 or less round-trip.

Prefer to fly direct from London Heathrow Airport to Montreal?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from London Heathrow to Montreal Pierre Elliott Trudeau Intl.
Find which airlines fly direct from London Heathrow Airport to Montreal Pierre Elliott Trudeau Intl Airport, which days they fly and book direct flights.

Direct departures

London Heathrow to Montreal Pierre Elliott Trudeau Intl

Monday

Air Canada,British Airways

Air Canada,British Airways

Tuesday

Air Canada,British Airways

Air Canada,British Airways

Wednesday

Air Canada,British Airways

Air Canada,British Airways

Thursday

Air Canada,British Airways

Air Canada,British Airways

Friday

Air Canada,British Airways

Air Canada,British Airways

Saturday

Air Canada,British Airways

Air Canada,British Airways

Sunday

Air Canada,British Airways

Air Canada,British Airways

See more nonstop flights

Direct returns

Montreal Pierre Elliott Trudeau Intl to London Heathrow

Monday

Air Canada,British Airways

Air Canada,British Airways

Tuesday

Air Canada,British Airways

Air Canada,British Airways

Wednesday

Air Canada,British Airways

Air Canada,British Airways

Thursday

Air Canada,British Airways

Air Canada,British Airways

Friday

Air Canada,British Airways

Air Canada,British Airways

Saturday

Air Canada,British Airways

Air Canada,British Airways

Sunday

Air Canada,British Airways

Air Canada,British Airways

See more nonstop flights

Reviews of the top 3 airlines flying from Heathrow to Montreal

 
See real verified KAYAK customer reviews for airlines flying from London to Montreal. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Heathrow to Montreal? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.1
Air CanadaOverall score based on 11291 reviews
7.1Comfort
7.3Boarding
6.8Entertainment
6.3Food
7.8Crew
Airline reviews

Multiple delays and flight cancellations meant that I arrived five and a half hours late at my destination. There was limited communication from the airline. The airline left my checked bag at my departure city and stopped tracking it almost immediately. The airline has made no apparent effort to return my bag despite filing a report, and has provided no communication or ability to check on the status of the bag.

2.0 MediocreRobert, Jun 2026
DEN - YUL
Read more Air Canada reviews

Multiple delays and flight cancellations meant that I arrived five and a half hours late at my destination. There was limited communication from the airline. The airline left my checked bag at my departure city and stopped tracking it almost immediately. The airline has made no apparent effort to return my bag despite filing a report, and has provided no communication or ability to check on the status of the bag.

It was good, seating was a little tight apart from that all was well.

Very disappointed with how we left Heathrow, and the service from Air Canada. When food was given, I was skipped by the attendant, and when I went to tell him, he just dropped the tray of food on my table. Leaving Heathrow and landing in Montreal were bad, which is not Air Canada’s fault, but the service itself was not good.

I didn't use the entertainment feature. I can't fault that. That was my choice. I could have opted for a bigger seat. Again, my choice. The crew was excellent on all of my flights. I don't really fault the food choices. (I'm one that's grateful to eat). All of the flights left on time or arrived early or on time. Grateful for the assistance that I received when checking my bag at Heathrow. (It was early...hard to think)! I hadn't flown in 17 years. I would consider choosing Air Canada again in the future.

I find it hard to believe that Air Canada still cannot provide non dairy milks for teas and coffees even if they offer vegan food, if preordered. It is about time to stop discriminating against people who live a plant-based diet.

I couldn’t fault my experience in any way. The plane was clean, comfortable, plenty of legroom and the food was great. I will definitely fly air Canada again.

Crew members were very polite and prompt in service. Cooling was very comfortable for a long journey but it's seats were stiff which are uncomfortable for a long travel

Everything went well… I really enjoyed my trip to London…. ❤️🇬🇧🇬🇧🇬🇧🛬

Would not volunteer to check in my carry-on again, my bag was lost.

Crew and travelling on time was great. Seats are not very comfortable, it feels like I always had a bump in the middle of my back. I did not appreciate the experience of being put on stand by. When I registered online 24hours before my flight, to my surprise I found out I was on stand by as my boarding pass stated SBY . Even though I purchased my flight back in October and I did board the plane as expected, the airport staff told me 15 minutes before boarding that they were overbooked and the system randomly selects client to put them on standby. No reassurance, no concern and no apologies from staff. I did not appreciate being put through this unpleasant experience and the anxiety that came along with this.

In my first flight with Air Canada we sat in the plane for 4:00pm to 6:30pm. Finally we were asked to get off the plane and we were told the flight was cancelled after 7:00pm There was o clear explanation of what was the problem. I was booked without my permission on a Delta Flight at 7:30pm that was leaving at 8:00pm and I still had to go get my luggage(my final destination was Rome with one stop in Toronto. The luggage claim for Canada was closed so had to return to finally get it on the luggage belt.. Of course I missed the Delta flight and all the next day flights were booked. I also lost what I paid for my stay in Rome because I did nt cancel in time. A complete nightmare.

The flight was delayed 7 hours and we were given 10 euros vouchers. This is ridiculous. The crew was not nice at all, they just did their job with serving food and drinks. Did not even apologize for the delay!!!!

full flight, could use more room....leg room fine seats tight

Overall great flight experience- on time, lots of food and movies.

bad seats, meager food quantity. bread not fresh. Hollywood films lack entertainment.

Great flight. Left on time, not very crowded. Quiet and the right temperature.

Boarding is as always an issue. Slow and long boarding time.

Le personnel attentionné et trilingue, la tranquillité du vol. Aucun aspect négatif

Not much leg room. The person in front of me had her seat reclined throughout the flight— made it very difficult to get up. Staff was excellent and worked very hard.

It would be much improved if the crew didn't force me to ride with my seatback up on an eight hour flight. What’s the point of a reclining seat if you’re forced to sit in the fetal position?

Horrible experience. They broke the handle of my checked in suitcase and then refused pay for damages

A great flight. The crew was excellent too. Of particular note of excellence was the gluten-free meal which was one of the best offerings I’ve ever had on a plane. Outstanding work, BA chefs.

I had a great experience on this flight! The crew was extremely helpful and attentive. Seats are very comfortable and the in flight entertainment was excellent.

The onboard service was fantastic, really in a class of its own

Everything was fine except not posting the gate number until 14 minutes before boarding. In an airport the size of Heathrow, that was unacceptable.

The least comfortable business class seat I have encountered for a while - very very firm when reclined making sleeping difficult. Cost cutting is visible everywhere - no offer to refill drinks (the wines were not good - so no real issue there :) ) Just not worth what BA charge

Usual friendly BA crew who were helpful and so kind to the kids. New business class cabin combined with 787 makes for a really enjoyable experience.

Better and more attentive crew and more food options. Leg space is very tight.

Our flight was delayed by over 6 hours. We then had to deplane, stay overnight in a hotel then fly out the next day, 23 hours late.

A heated chicken pie as a snack was terrible and could not be eaten. It should never be served. The crew took a long time in cleaning up after meals

Everything you need to know for your flight from Heathrow to Montreal

Information on your arrival and departure airports