LHR - YUL

C$ 475 Find Cheap Flights from London Heathrow Airport to Montreal

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 18/11. 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.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Montreal Pierre Elliott Trudeau Intl Airport

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from London to Montreal, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from London to Montreal, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
C$ 734
Overall average: C$ 835
Air Canada
Sun 25/1Sun 8/2
LHR - YUL • 1 stop
Cheapest direct flights
C$ 834
Typical prices: C$ 877-C$ 1,430
Air Canada
Sat 6/12Mon 8/12
LHR - YUL • Direct
Our travellers' advice
AI-generated summary based on content written by travel experts
BA's premium economy offers 18 cm extra legroom.
Use the ArriveCAN app at YUL for faster customs.
Expert advice
Expert advice
Expert advice
Expert advice
Top airlines
Air Canada
Cheapest • from C$ 734 (round-trip)
Air Canada
Best reviews • 7.1 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to book
2 weeks
in advance
Our data shows that travellers who book at least 2 weeks in advance save around 8% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
May
Cheapest • 15% price drop
August
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you love your trip to Montreal!
Flight Deals
Booking Insights
Expert advice
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

Sun, 25 Jan - Sun, 8 Feb
Air Canada Logo
9:00 a.m. - 3:10 p.m.LHR-YUL
11h 10m1 stop
Air Canada Logo
1:00 p.m. - 9:20 a.m.YUL-LHR
15h 20m2 stops
C$ 734Air Canada
Find Deal
Thu, 27 Nov - Tue, 2 Dec
Air Canada Logo
9:00 a.m. - 7:53 p.m.LHR-YUL
15h 53m2 stops
Air Canada Logo
10:30 p.m. - 8:35 p.m.YUL-LHR
17h 05m2 stops
C$ 740Air Canada
Find Deal
Thu, 12 Feb - Thu, 5 Mar
Air Canada Logo
9:00 a.m. - 3:10 p.m.LHR-YUL
11h 10m1 stop
Air Canada Logo
10:30 p.m. - 8:35 p.m.YUL-LHR
17h 05m2 stops
C$ 741Air Canada
Find Deal
Wed, 11 Feb - Wed, 4 Mar
Air Canada Logo
1:45 p.m. - 3:10 p.m.LHR-YUL
30h 25m1 stop
Air Canada Logo
10:30 p.m. - 8:35 p.m.YUL-LHR
17h 05m2 stops
C$ 744Air Canada
Find Deal
Thu, 12 Feb - Thu, 5 Mar
Air Canada Logo
9:00 a.m. - 7:58 p.m.LHR-YUL
15h 58m2 stops
Air Canada Logo
7:00 p.m. - 8:35 p.m.YUL-LHR
20h 35m2 stops
C$ 751Air Canada
Find Deal
Tue, 2 Dec - Sun, 7 Dec
Air Canada Logo
12:05 p.m. - 3:10 p.m.LHR-YUL
32h 05m1 stop
Air Canada Logo
10:30 a.m. - 9:20 a.m.YUL-LHR
17h 50m2 stops
C$ 752Air Canada
Find Deal
Sat, 6 Dec - Fri, 12 Dec
Air Canada Logo
9:00 a.m. - 3:10 p.m.LHR-YUL
11h 10m1 stop
Air Canada Logo
10:30 a.m. - 9:20 a.m.YUL-LHR
17h 50m2 stops
C$ 755Air Canada
Find Deal
Wed, 26 Nov - Sat, 6 Dec
Air Canada Logo
12:05 p.m. - 3:10 p.m.LHR-YUL
32h 05m1 stop
Air Canada Logo
8:10 p.m. - 8:35 p.m.YUL-LHR
19h 25m2 stops
C$ 757Air Canada
Find Deal
Wed, 4 Feb - Sun, 8 Feb
Air Canada Logo
9:00 a.m. - 3:10 p.m.LHR-YUL
11h 10m1 stop
Air Canada Logo
1:00 p.m. - 9:20 a.m.YUL-LHR
15h 20m2 stops
C$ 758Air Canada
Find Deal
Wed, 4 Mar - Fri, 20 Mar
Air Canada Logo
6:00 a.m. - 1:45 p.m.LHR-YUL
12h 45m1 stop
Air Canada Logo
1:00 p.m. - 9:20 a.m.YUL-LHR
16h 20m2 stops
C$ 761Air Canada
Find Deal
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.

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 Saturday and avoid Mondays 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 May, where tickets cost C$ 768 (return) on average. On the other hand, the most expensive months are August and July, where the average cost of round-trip tickets is C$ 1,142 and C$ 1,135 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 2 stops layover the cheapest option at C$ 855 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 8% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 17 weeks before departure.

Expert advice

Expert advice for your flight from Heathrow to Montreal

 
Snippets provided in this section are AI-generated based on a summarisation of KAYAK-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Airlines
Air Canada

Air Canada's Signature Class offers lie-flat seats with direct aisle access.


Air Canada's Wi-Fi is free for messaging to Aeroplan members.

Lufthansa

Lufthansa's Premium Economy offers 50% more space and an extra checked bag.


Lufthansa's in-flight entertainment includes recent movies and TV series.

British Airways

BA's premium economy offers 18 cm extra legroom, ideal for long flights.


BA's cabin crew are known for their professionalism and proactive service.

Airports
LHR

Heathrow can be overcrowded. Arrive two hours early for carry-on only, longer if checking bags. Avoid peak times for smoother travel.

YUL

For a quick exit at YUL, use the ArriveCAN app for customs. It offers a special, often empty queue for faster processing.

Our travel experts
Stefanie Waldek

Stefanie Waldek

Expert on Air Canada

Stefanie Waldek

Stefanie Waldek

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.

Read more
Jessica Macdonald

Jessica Macdonald

Expert on Lufthansa

Jessica Macdonald

Jessica Macdonald

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.

Read more
Duncan Madden

Duncan Madden

Expert on British Airways and LHR

Duncan Madden

Duncan Madden

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.

Read more
Mark Stachiew

Mark Stachiew

Expert on YUL

Mark Stachiew

Mark Stachiew

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.

Read more

Good to know

Low seasonNovember
Cheapest flightC$ 489
Best time to beat the crowds (3% 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 3 days, the lowest price for a flight from London Heathrow Airport to Montreal Pierre Elliott Trudeau Intl Airport was C$ 489 for a one-way ticket and C$ 734 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, KLM, 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$ 918 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$ 859 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$ 606 or less one-way and C$ 867 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 10449 reviews
7.3Boarding
6.8Entertainment
6.3Food
7.8Crew
7.1Comfort
Airline reviews

Allow me to book extra bag check in as free though I packed in 1 luggage but that was 7 LBS overweight so make another bag to free check in.

8.0 ExcellentMH, Oct 2025LGA - YUL
Read more Air Canada reviews

Allow me to book extra bag check in as free though I packed in 1 luggage but that was 7 LBS overweight so make another bag to free check in.

Good. But not to serve tea/coffee during a 8-hour plus flight is bad.

I paid extra to have a seat with more leg room next to a door. Turns out that is next to the bathroom. Customers disrespected my space the entire trip by stepping on my feet and tripping over me. You need to do a better job defining the space! Others had leg room under the seat in front of them and then used my space as a lounge and waiting area. Never again!

Plane left an hour late, I missed my connection and my bow case was never even loaded on the plane in VA. I deal with this type of nonsense everytime I fly air canada.

It was a smooth flight both in the sky and landing!

Fare was great, seat comfort the opposite as cushion was worn out. Ok for 2 hour flight, not for 4.5 hour flight..

We went for a family funeral. Unfortunately Air Canada will not give a bereavement discount for flights that have already occurred. We couldn't get the death certificate before our flights.

The crew was highly professional and caring, I was flying business class. I will fly with them any time.

The crew members were great. The flight was awesome. But I had trouble getting to any of the movies. I tried over and over. The free wifi though is a bonus which I appreciated. Re comfort I am not telling you anything you don’t know. There is nothing comfortable about air travel any longer. As someone with a back issue I am usually squirming about two hours into any flight. But safety matters most of all to me and I do feel safe with air Canada.

For the price, it was a really good experience. There was no entertainment on board, so I couldn't really rate this, and I didn't order a meal. I appreciated that there was a free glass of wine.

Paid for exit row at the back of the plane. Window seat with lots of leg space. Food was inedible (as usual). Brought my own.

Missed flight. Requested assistance for my father and he did not receive it in Paris.

Business Class was very comfortable and the food and service was top notch.

The crew was very nice. The equipment on the 747 felt old.

As expected. Would have appreciated a 3-day headsup reminder as a reassurance that all is well.

Poor food on flight between Toronto and Stockholm Airport Toronto too crowded

The plane was late (as was my flight out from Birmingham the day before)

Business Class Configuration was excellent- private and comfortable. Crew and service were excellent. I really appreciate Air Canada cabin pressurization equal to an altitude of 8,000ft. Upon landing, I felt more alert and refreshed than typical for international flights

Hard to use tables and TV screens interfere with the enjoyment of flight experience. Other than that it was a smooth and comfortable ride and we were well taken care of.

Excellent flight overall. Lufthansa Business service was excellent with great cabin crew and very good food and wines. The seat comfort was excellent. Only a slight reduction in score due to the 747-400 being a relatively loud aircraft these days.

⭐ British Airways Review — A Journey of Highs, Lows, and Lessons ⭐ I recently flew Business Class round-trip from Boston to Mumbai with British Airways, and my experience was a tale of two extremes — from disappointment to exceptional service, and then back to inconsistency. Boston → London: A Surprisingly Poor Start My journey began on a disappointing note. On a 6-hour Business Class flight, I was surprised to discover that there wasn’t a single proper vegetarian meal option available. I was offered a few bakery items only after repeatedly requesting something to eat. The flight attendant shrugged, offered no solution, and eventually — quite literally — threw some bread at me after much delay. This was not only disheartening, it was extremely surprising given my wonderful Business Class experience with BA last year. I stepped off that flight genuinely hungry and had to make a mad dash to the lounge just to get a proper meal. London → Mumbai: A Complete Turnaround The next sector restored my faith in British Airways. The entire crew was warm, welcoming, attentive, and genuinely caring. A special shoutout to Phiroze and the entire team serving the Business Class cabin — their professionalism, hospitality, and thoughtful service were extraordinary. They truly embodied what makes British Airways a global leader, and I am deeply grateful for the experience they provided. This is the BA I know and love. Mumbai → London: A Strange Meal Schedule This sector was generally fine, but the meal timing was puzzling. Lunch at 10:30 AM — for a Business cabin — felt unusual, and most passengers, including myself, barely touched it. The rest of the service was smooth, but the scheduling definitely needs a rethink. London → Boston: Mixed Experience Again The flight itself was decent, but the Business Lounge at Heathrow for this leg was a letdown. Arrived during lunch hours: no hot vegetarian options available Lounge area: dirty dishes everywhere Even after politely alerting the staff, the dishes were ignored and left uncleared For a premium cabin passenger — and at one of the world’s busiest international hubs — this was disappointing. Overall Impression My journey with British Airways felt inconsistent — two great sectors sandwiched between two that fell short of the BA standard. When BA is good, it is world-class. When it misses, the gap is noticeable. I genuinely hope the airline takes this feedback as constructive insight. I continue to believe in British Airways, and I commend the outstanding crew on the London → Mumbai sector — they were the highlight of my entire trip. With a little more focus on vegetarian meal availability, lounge service, and consistency across crews, BA can ensure every Business Class passenger experiences the premium journey they promise.

We were in business class and I had seat # 1. This was a night flight and after dinner was served, lights were dimmed and I went to sleep. The crew were loud and noisy so I didn’t get much sleep. I expect the crew to enjoy themselves but would Appreciate some decency in staying quiet while the passengers sleep

Have travelled business class with other airlines who profess to be the best in the world. They can however not beat the service and comfort that BA provide.

Great on board entertainment Tasty food Cattle class obviously crammed but not as bad as shorter hall flights

Logan gate staff was unhelpful. Arrived early, come to find out the airbus scheduled was reassigned and I did not have a seat. The desk agent spoke to his supervisor who instructed him to give me a boarding pass to get up to gate area, he was polite. At the gate the fellow was sitting to the side with two other BA staff . I asked him if he could help me, his answer was” we are on a break, we are closed” then turned his back. I am almost 70, drove 4 1/2 hours to Boston and had been looking forward to this trip for 5 months. I have worked in service many times in my life and this is not how it is done. I eventually (1/2 hr) before boarding was able to get a seat. The rest of the flight experience was unremarkable.

The boarding process was chaotic at LHR and the seat was not as comfortable as other airlines....

Great flight. One unique individual assisting in business class who should have not been there. Need more generic meals, not British centric.

We always use BA due to the direct flight options, we have always had a pleasant flight with BA.

There might be more food options for people who can't eat so much starch/sugar/bread/rice. Meat, cheese, walnuts/pecans for snack, maybe jerky or other kinds of meat-based snacks would be better than bread and rice and sweets. I had an extra chardonnay, which was fine. The entertainment was great.

Unfortunately, my flight was cancelled because of some sort of emergency over the Atlantic and had to return to London. While I think British Airways made every effort to mitigate the situation, I must say it was still pretty unpleasant. I do appreciate the fact, however, that British Airways put my safety first…and I think the effort to correct a bad situation was very sincere. But I think the process might be handled better in future.

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

Information on your arrival and departure airports