YUL - LHR

$320 Find Cheap Flights from Montreal to London Heathrow Airport

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Montreal to London departing on 8/11. 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

KAYAK searches hundreds of travel sites at once for deals on flights to London Heathrow Airport

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

Cheap Flights from Montreal to Heathrow (YUL-LHR)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Montreal to Heathrow 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 Montreal to London

Fri, Aug 8 - Sun, Aug 17
Lufthansa Logo
2:10 pm - 6:35 amYUL-LHR
11h 25m1 stop
Lufthansa Logo
2:05 pm - 4:15 pmLHR-YUL
7h 10mnonstop
$369Lufthansa
Find Deal
Sun, Sep 14 - Mon, Sep 22
Austrian Airlines Logo
6:35 pm - 9:40 pmYUL-LHR
22h 05m1 stop
Austrian Airlines Logo
10:25 am - 1:50 pmLHR-YUL
32h 25m1 stop
$503Austrian Airlines
Find Deal
Sun, Oct 5 - Sun, Oct 12
Air Canada Logo
9:55 pm - 9:35 amYUL-LHR
6h 40mnonstop
Air Canada Logo
6:50 am - 11:35 amLHR-YUL
9h 45m1 stop
$540Air Canada
Find Deal
Tue, Sep 9 - Tue, Sep 16
Air Canada Logo
9:55 pm - 9:35 amYUL-LHR
6h 40mnonstop
Air Canada Logo
6:50 am - 11:35 amLHR-YUL
9h 45m1 stop
$541Air Canada
Find Deal
Thu, Sep 4 - Sun, Sep 28
 Logo
8:15 pm - 10:00 amYUL-LHR
32h 45m1 stop
 Logo
6:50 am - 11:35 amLHR-YUL
9h 45m1 stop
Mon, Nov 10 - Fri, Nov 21
British Airways Logo
8:50 pm - 8:40 amYUL-LHR
6h 50mnonstop
British Airways Logo
4:30 pm - 7:05 pmLHR-YUL
7h 35mnonstop
$595British Airways
Find Deal
Mon, Dec 1 - Tue, Dec 16
British Airways Logo
8:50 pm - 8:40 amYUL-LHR
6h 50mnonstop
British Airways Logo
4:30 pm - 7:05 pmLHR-YUL
7h 35mnonstop
$629British Airways
Find Deal
Mon, Nov 10 - Fri, Nov 21
 Logo
2:25 pm - 7:20 amYUL-LHR
11h 55m1 stop
 Logo
4:30 pm - 7:05 pmLHR-YUL
7h 35mnonstop
Thu, Oct 23 - Mon, Oct 27
American Airlines Logo
12:15 pm - 6:40 amYUL-LHR
13h 25m1 stop
American Airlines Logo
4:30 pm - 8:05 pmLHR-YUL
7h 35mnonstop
$646American Airlines
Find Deal
Sat, Nov 1 - Sun, Nov 16
American Airlines Logo
9:50 pm - 8:40 amYUL-LHR
6h 50mnonstop
American Airlines Logo
10:05 am - 10:45 pmLHR-YUL
17h 40m1 stop
$681American Airlines
Find Deal
Expert advice

Expert advice for your flight from Montreal to London

 
Snippets provided in this section are AI-generated based on a summarization 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

Signature Class offers lie-flat seats with direct aisle access, ideal for long-haul comfort.


Premium Economy provides extra legroom and priority boarding, enhancing comfort on long flights.

Read more about Air Canadaby Stefanie Waldek
British Airways

Premium Economy offers more space and peace, with wider seats and deeper recline.


BA's professional cabin crew enhance the flight experience with attentive service.

Lufthansa

Premium Economy offers 50% more space and an extra checked bag, enhancing comfort.


Lufthansa's special meals cater to dietary needs, available on long-haul flights.

Read more about Lufthansaby Jessica Macdonald
American Airlines

Main Cabin Extra offers early boarding and complimentary drinks, ideal for longer flights.


Flagship Lounges provide premium services including upgraded seating and meals for qualifying passengers.

Airports
YUL

Security lines at YUL move quickly. Arrive 90 minutes early; expect 20-30 minutes for screening.

Read more about YULby Brandon Schultz
LHR

The Elizabeth Line offers a cost-effective commute from Heathrow to central London, taking about twice as long as the Express.

Read more about LHRby Duncan Madden
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
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
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
Harriet Baskas

Harriet Baskas

Expert on American Airlines

Harriet Baskas

Harriet Baskas

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Read more
Brandon Schultz

Brandon Schultz

Expert on YUL

Brandon Schultz

Brandon Schultz

Brandon Schultz is an award-winning food and travel writer based in New York City. His work has appeared in Forbes, AAA, Thrillist, Travel + Leisure, and The Daily Meal, among many others, and he is the author of 6 books, including 3 cookbooks.

Read more
Useful Info

KAYAK's insights & trends for Montreal to London flights

Get data-powered insights and trends into flights from Montreal to London 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 Montreal to London Heathrow Airport?

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

If your flying dates are flexible, you should consider flying to London Heathrow Airport on a Saturday, as we generally find the cheapest rates on that day for this route. On the other hand, Tuesday is the most expensive day to fly from Montreal to London Heathrow Airport. For your return ticket, we recommend flying on a Tuesday and avoiding Thursdays for the best deals.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow 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 Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow Airport is October, where tickets cost $658 (return) on average. On the other hand, the most expensive months are December and July, where the average cost of round-trip tickets is $922 and $854 respectively.

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

No, with an average price for the route of $2,576, prices are generally cheapest when you fly direct.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow 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 Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow Airport, you should book around 2 weeks before departure. For the absolute cheapest price, our data suggests you should book 11 weeks before departure.

Good to know

Low seasonFebruary
High seasonSeptember
Cheapest flight$320
Best time to beat the crowds with an average 5% drop in price.
Most popular time to fly and prices are also 8% lower on average.
Flight from Montreal to London Heathrow Airport

When to book flights from Montreal to London

Are your dates flexible? Find out the best times to travel from Montreal to London 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 Montreal to London Heathrow Airport flights

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

    In the last 3 days, the lowest price for a flight from Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow Airport was $320 for a one-way ticket and $369 for a round-trip.

  • Do I need a passport to fly between Montreal and London Heathrow Airport?

    Yes, you’ll need a passport to travel to London Heathrow Airport from Montreal.

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

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

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

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

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

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

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

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

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

    The two airlines most popular with KAYAK users for flights from Montreal to London are American Airlines and Air Canada. With an average price for the route of $854 and an overall rating of 7.2, American Airlines is the most popular choice. Air Canada is also a great choice for the route, with an average price of $744 and an overall rating of 7.1.

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

    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 Montreal to London Heathrow Airport.

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

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

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

    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 London Heathrow Airport with an airline and back to Montreal with another airline. Booking your flights between Montreal and LHR can sometimes prove cheaper using this method.

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

    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 London Heathrow Airport from Montreal 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 Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow Airport

  • Looking for a cheap flight? 25% of our users found flights on this route for $607 or less one-way and $703 or less round-trip.

Prefer to fly direct from Montreal to London Heathrow Airport?

Find which airlines fly direct from Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow Airport, which days they fly and book direct flights.

Direct departures

Montreal Pierre Elliott Trudeau Intl to London Heathrow

Monday

Aegean Airlines, Aer Lingus, Air Canada, +10 more

Aegean Airlines, Aer Lingus, +11 more

Tuesday

Aegean Airlines, Aer Lingus, Air Canada, +10 more

Aegean Airlines, Aer Lingus, +11 more

Wednesday

Aegean Airlines, Aer Lingus, Air Canada, +10 more

Aegean Airlines, Aer Lingus, +11 more

Thursday

Aegean Airlines, Aer Lingus, Air Canada, +10 more

Aegean Airlines, Aer Lingus, +11 more

Friday

Aegean Airlines, Aer Lingus, Air Canada, +10 more

Aegean Airlines, Aer Lingus, +11 more

Saturday

Aegean Airlines, Aer Lingus, Air Canada, +10 more

Aegean Airlines, Aer Lingus, +11 more

Sunday

Aegean Airlines, Aer Lingus, Air Canada, +10 more

Aegean Airlines, Aer Lingus, +11 more

See more direct flights

Direct returns

London Heathrow to Montreal Pierre Elliott Trudeau Intl

Monday

Aer Lingus, Air Canada, American Airlines, +7 more

Aer Lingus, Air Canada, +8 more

Tuesday

Aegean Airlines, Aer Lingus, Air Canada, +10 more

Aegean Airlines, Aer Lingus, +11 more

Wednesday

Aegean Airlines, Aer Lingus, Air Canada, +10 more

Aegean Airlines, Aer Lingus, +11 more

Thursday

Aer Lingus, Air Canada, American Airlines, +7 more

Aer Lingus, Air Canada, +8 more

Friday

Aegean Airlines, Aer Lingus, Air Canada, +10 more

Aegean Airlines, Aer Lingus, +11 more

Saturday

Aegean Airlines, Aer Lingus, Air Canada, +10 more

Aegean Airlines, Aer Lingus, +11 more

Sunday

Aegean Airlines, Aer Lingus, Air Canada, +10 more

Aegean Airlines, Aer Lingus, +11 more

See more direct flights
See more direct flights

Top 4 airlines serving from Montreal to London

 
See real verified KAYAK customer reviews for airlines flying from Montreal to London. 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 Montreal to London? 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.
7.2
American AirlinesOverall score based on 10000 reviews
7.5Boarding
7.2Comfort
6.5Food
6.9Entertainment
8.0Crew
Airline reviews

Flight was full, and would have preferred an aisle seat, but due to getting a late ticket ,the seat I had was adequate. The flight crew were very help full and hard working. Food and drink were excellent for the 11hr flight. Overall I was pleased with flight, and would recommend British Airways again.

10.0 ExcellentBrian, Jun 2025SAN - LHR
Read more American Airlines reviews

Flight was full, and would have preferred an aisle seat, but due to getting a late ticket ,the seat I had was adequate. The flight crew were very help full and hard working. Food and drink were excellent for the 11hr flight. Overall I was pleased with flight, and would recommend British Airways again.

More choices on menu. Seemed only thing offered was Scottish, and while that’s good for the Scot’s it doesn’t help the Americans who don’t like that food. And I really hate it when, during sleep time the attendants have a very loud conversation right over you. Lastly, I paid 5000 dollars for business class, and having to pay more to choose my seat early is really an insult. Seems greedy

More choices on menu. Seemed only thing offered was Scottish, and while that’s good for the Scot’s it doesn’t help the Americans who don’t like that food. And I really hate it when, during sleep time the attendants have a very loud conversation right over you

The chicken adobo was a little too spicy but good otherwise. My personal opinion. Movie selection could be improved, too many horror movies. Could add a few more chick flicks! The flight was bumpy at times. We arrived a little early too! Flight attendants friendly.

Again flight was awesome except British Airways lost both gate checked luggage’s. Still missing

really bad they refused to check in luggages that I had purchased, even showing them the transaction receipt from british airways app the staff in miami was MEDIOCRE

Crew was great and responsive. Entertainment quit working with about 4 hours remaining on the flight. My seat cushion was broken.

Not very good , the stewardess were unfriendly and they don't like to be bothered. Cos was a night flight and they need to sleep.

British Airways staff are very polite and willing to help.

This particular flight wasn't very full at the back, so there were three seats available for spreading out and getting relatively comfortable

Service Director cut all cabin lights and window screens defaulted to dark, but it was an afternoon flight going west. I spent hours trying to see what was reading as reading lights weren't working either. What the hell.

The food could have been better. The flight attendant was the friendliest and most helpful I have ever had.

Almost no food given on a 5-hour flight (only a cookie, which is almost a joke). Boarding was a mess (as always, in Montreal boarding by zones is chaotic and the lines are a total mess). The entertainment system was old and with a limited selection.

Very nice comfortable spacy Airbus 321. I liked the offer of food on the Bistro menu. The idea is very good to pay and cost was low.

Received email saying that there won’t be a seat back entertainment screen and inflight WiFi would be available. But no WiFi both ways. Say it in the email.

Staff was very attentive! Food was good for premium economy airplane food. Clearly an older plane - seat back had to be pulled up manually after being reclined.

Good, only discomfort was consistent turbulence through the 3 hour flight. Not sure if in companies control though.

No frills very ordinary, charged me twice to book my seat assignment will.need to complain for reimbursement.

Everything ok, but it was a lot of turbulence during the flight.

Crew was pleasant and efficient. The speaker system for instructions was hard to understand

Everything well done and customer oriented There entertainment system is difficult to navigate

They delayed my flight from Toronto Pearson for one hour and Frankfurt to Abuja for 2HRS, So sad

The aircraft was old, there was no charging sockets, and the seats were narrow and uncomfortable even though I had exit row premium seats.

The service was really good. The breakfast food could’ve been better as I don’t eat sweets for breakfast and the only choice was a muffin. Overall, good experience though. Thank you.

It was my first experience in business class. It was everything I expected and more. Service was impeccable, food was delicious and I felt rested once I arrived to London

The flight was delayed and I was stressing the whole time about whether I would make my next flight.

The flight crew did a good job, the main problem I had was in the layout of the pod itself. I know it does not matter but the connection for the head phones was not A- easy to find, B- very difficult to do based on the placement ( behind the right shoulder, very hard to reach, the type of plug on the frame vs the actual plug of the headphones), C due to the location and the way it connected, it did not allow me to use my own headphones, D- very low quality and very uncomfortable headphones, E- Surprisingly, very old selections of movies, for me, at least. I will still fly with Lufthansa as you deliver a very good product overall and I enjoy the quality of service, the ease and the prices. Thank you.

Flight crew was among the best I’ve ever seen

my flight was cancelled. next one scheduled 2 days later. no hotel provided. worst airline experience ever

Crew had connection details for only 2 other flights and gave less than empathetic guidance.

The payment system was not working so was unable to connect wifi the entire flight

The boarding call announcements versus the Staff announcements versus the digital signage board on the out-going and returning flights WERE NOT IN SYNC. I was sent through check and re-checks 3 times. WHY?

Absolutely the worst airline. Can’t find anything positive to say. We were in business which is the same as most airlines coach

everything to do with KAYAK was terrible. Your customer facing departments are utterly useless, timewasting and unhelpful.

I ordered short ribs for main course. It tasted sweet, really sweet. Horrible.

When checking our bags we were told our bags would go through our final destination. This did not happen. When boarding, after group 3 it was a free for all, everyone boards. When served lunch, I asked for anything without dairy, I was given popcorn and gummy snacks. She said she would come back with more options, she never did. Also, when traveling through London, they don’t tell you your gate number until 1 hour before flight leaves, causing everyone to run to their gate.

Full flight, but crew was great. No wifi and no seatback entertainment, so had to read...argh!

The screen didn’t work and I didn’t get the seat upgrade I paid $300 for. They were no help with that,

The crew did not really interact with me which was no problem as I was fine. I did see that they were somewhat short with some passengers but that was not common. Just in general, they did not seem friendly - no requirement to be so but I am used to a friendly crew on most flights. The food was just ok but with a flight that large, I would think it hard to make something more elaborate.

Paid $180 for seat selection, and selection essnt honored. Have to call for a refund.

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

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