YUL - LHR

£206 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 Heathrow departing on 15/9. 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.
1 adult

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
Travellers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 26% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Cheap Flight Deals from Montreal to Heathrow (YUL-LHR)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return 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.

Recent return flight deals from Montreal to Heathrow

KAYAK's recommended return flight deals from the most popular airlines that fly from Montreal to Heathrow.
Discover the best prices for you by selecting your travel dates on KAYAK.
Choose your dates
Air Canada Logo
22:25 - 10:00YUL-LHR
6h 35mdirect
Air Canada Logo
06:00 - 15:00LHR-YUL
14h 00m1 stop
£384Air Canada
Find Deal
Sat, 24 May - Tue, 10 Jun
Air Canada Logo
22:25 - 10:00YUL-LHR
6h 35mdirect
Air Canada Logo
08:45 - 15:00LHR-YUL
11h 15m1 stop
£391Air Canada
Find Deal
Wed, 7 May - Sat, 10 May
TAP AIR PORTUGAL Logo
22:45 - 22:55YUL-LHR
19h 10m1 stop
TAP AIR PORTUGAL Logo
18:45 - 20:45LHR-YUL
31h 00m1 stop
£400TAP AIR PORTUGAL
Find Deal
Mon, 1 Sep - Tue, 9 Sep
TAP AIR PORTUGAL Logo
22:45 - 22:00YUL-LHR
18h 15m1 stop
TAP AIR PORTUGAL Logo
06:00 - 20:45LHR-YUL
19h 45m1 stop
£405TAP AIR PORTUGAL
Find Deal
Mon, 1 Sep - Wed, 10 Sep
Lufthansa Logo
22:25 - 10:00YUL-LHR
6h 35mdirect
Lufthansa Logo
09:30 - 11:40LHR-YUL
7h 10mdirect
£409Lufthansa
Find Deal
Sun, 11 May - Fri, 16 May
Lufthansa Logo
22:25 - 10:00YUL-LHR
6h 35mdirect
Lufthansa Logo
09:30 - 11:40LHR-YUL
7h 10mdirect
£410Lufthansa
Find Deal
Fri, 6 Jun - Fri, 13 Jun
British Airways Logo
22:05 - 09:45YUL-LHR
6h 40mdirect
British Airways Logo
18:05 - 20:15LHR-YUL
7h 10mdirect
£413British Airways
Find Deal
Thu, 12 Jun - Wed, 18 Jun
British Airways Logo
22:10 - 09:50YUL-LHR
6h 40mdirect
British Airways Logo
18:05 - 20:15LHR-YUL
7h 10mdirect
£418British Airways
Find Deal
Wed, 28 May - Wed, 18 Jun
 Logo
09:15 - 10:40YUL-LHR
20h 25m1 stop
 Logo
09:30 - 11:40LHR-YUL
7h 10mdirect
Sat, 24 May - Thu, 29 May
 Logo
22:25 - 10:00YUL-LHR
6h 35mdirect
 Logo
18:30 - 12:10LHR-YUL
22h 40m1 stop
Wed, 14 May - Mon, 19 May

Expert advice for your flight from Montreal to Heathrow

 
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 specific 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
Lufthansa

Lufthansa's Premium Economy offers 50% more space and an extra 23 kg checked bag.


Lufthansa provides 11 special meal choices, including gluten-free and kosher, ordered 24 hours before departure.

Read more about Lufthansaby Jessica Macdonald
Air Canada

Air Canada's Signature Class features lie-flat seats with direct aisle access on long-haul flights.


Air Canada's Aeroplan offers free Wi-Fi messaging for members and high-value business-class redemptions.

Read more about Air Canadaby Stefanie Waldek
British Airways

BA's premium economy offers 18 cm extra legroom, priority boarding, and wider seats for long-haul comfort.


BA's Executive Club loyalty programme offers Avios points for flights and partner purchases.

Airports
YUL

Security queues at YUL move quickly. Arrive 90 minutes early; expect 20–30 minute waits even for general security.

Read more about YULby Brandon Schultz
LHR

The Heathrow Express takes you to London Paddington in 15 minutes. Buy tickets in advance for the best rate.

Read more about LHRby Kirstie Pickering
Our travel experts
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 travelled to more than 50 countries across six continents.

Read more
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 out at sea, likely en route to Antarctica or the Arctic.

Read more
Duncan Madden

Duncan Madden

Expert on British Airways

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
Brandon Schultz

Brandon Schultz

Expert on YUL

Brandon Schultz

Brandon Schultz

Brandon travels every week and makes friends with stray cats wherever he goes. Dogs, too... he once brought one home to the US from the Amalfi Coast. He’s written 6 books, visited 6 continents (still waiting on Antarctica), and would eat ice cream 6 times a day if he could. He lives in Brooklyn, New York, with his partner and three cats.

Read more
Kirstie Pickering

Kirstie Pickering

Expert on LHR

Kirstie Pickering

Kirstie Pickering

Aviation and business journalist Kirstie didn’t leave England until she was 18 years old, but has since travelled to over 20 countries including Japan, Canada, and Iceland. Her travel expertise lies in European city breaks, including how to find the best locally-owned hotels and restaurants and how to optimise the airport experience for your needs.

Read more

KAYAK's insights & trends for Montreal to Heathrow flights

Get data-powered insights and trends into flights from Montreal to Heathrow 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.
For Montreal to London Heathrow Airport, Tuesday is the cheapest day to fly on average and Saturday is the most expensive. Flying from London Heathrow Airport back to Montreal, the best deals are generally found on Wednesday, with Saturday being the most expensive.

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 £494 (return) on average. On the other hand, the most expensive months are December and July, where the average cost of round-trip tickets is £690 and £650 respectively.

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

The average return price for all direct flights, flights with one stopover, and flights with two stopovers for the route found by users searching on KAYAK in the last 2 weeks.
No, with an average price for the route of £758, 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 20 weeks before departure.

Good to know - Cheap tickets from Montreal to London Heathrow Airport

Low season

January

High season

September

Cheapest flight

£206
Best time to beat the crowds (6% less expensive on average)
Most popular time to fly and prices are also 11% lower on average.
Flight from Montreal to London Heathrow Airport

When to book flights from Montreal to Heathrow

Are your dates flexible? Find out the best times to travel from Montreal to Heathrow based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or returns 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 £274 for a one-way ticket and £511 for a return.

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

    Montreal airport is called Montreal Pierre Elliott Trudeau Intl and the only airport in London Heathrow Airport is London Heathrow.

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

    Air Canada, Lufthansa, Air France, and SWISS 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 direct flights from Montreal to London Heathrow Airport on a daily basis.

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

    The two airlines most popular with KAYAK users for flights from Montreal to London are Air Canada and British Airways. With an average price for the route of £534 and an overall rating of 7.0, Air Canada is the most popular choice. British Airways is also a great choice for the route, with an average price of £670 and an overall rating of 6.6.

  • 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 travellers 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 return ticket. You could then fly to London Heathrow Airport with an airline and back to Montreal with another airline.

  • 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.

See more FAQs

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 from London Heathrow Airport to Montreal? 25% of our users found flights on this route for £558 or less one-way and £540 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, +10 more

Aer Lingus, Air Canada, +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

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 3 airlines serving from Montreal to Heathrow

 
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 Heathrow? 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.
7.6
FinnairOverall score based on 1272 reviews
7.6Boarding
6.9Entertainment
6.7Food
8.1Crew
7.4Comfort
Airline reviews

Boarding uncomfortable. Stewardess said I would have to check my carry on as there was no room in the overhead bins. Another passenger helped me find a spot.

8.0 ExcellentAnonymous, Jan 2025DFW - CVG
Read more Finnair reviews

Boarding uncomfortable. Stewardess said I would have to check my carry on as there was no room in the overhead bins. Another passenger helped me find a spot.

Any flight that lands safely is a good flight. However our leg from Helsinki was delayed 1 hour with no explanation. The delay would not allow us to make our connection to Cincinnati. I was informed by American Airlines that our Cincinnati flight was rescheduled for the following day. I immediately made a non refundable hotel reservation in Dallas. Upon exiting the plane at Dallas I was given a hotel voucher. Nice, but I can't get a refund on the hotel I booked. A little communication would have been helpful. Food on Finnair is below quality of Korean Air.

The cabin crew really looked like they wanted to be somewhere else. They weren't really interested in providing an attentive service to full fare paying passengers at all. However the Captiain's in flight announcements were relaxed and very entertaining.

Crew were professional and responsive. Food was mediocre and breakfast could do with revampinmg

Food was very ordinary for premium economy, very small portions.

i dont know WHY they call it business class. the seats are NOT significantly wider than economy seats, they just do not let the middle seats be beepked to give the illusion of more space between passengers. the seats do NOT recline any more than economy seats either. the only real difference is the full meal served to business (vs none for economy). I would rather have a wider, lie flat ACTUAL business class seat with no food for a 3 hr flight. this was pretty disappointing to say the least.

There wore nice leather like sits, in my opinion seats lay out bit tight . Crew was great they did averything possible to make averywone comfortable as possible, food was, think worst I ever head on flight, head chicken and yellow rice. Ice cream was a nic treat.

Our previous flight was delayed but they waited for us to board.

Flight was delayed, short time connection to next flight but we make it, service was good, worth to fly just to try thair on board blueberry juce. Eccelent communication with airline.

My American Airlines flight was deleted and you guys never let me know

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

My experience was poor with customer Services. Please consider flexibility with cancellation due to emergency health condition. Thank you.

Terrible. Flight was delayed for hours and we ended up arriving at our home at 4am after 20+ hours flying.

Disappointed my flight was delayed to TO as i had a connection to make. Ran through the airport I made my flight but I initially had 1.5 hours to connect. Unnecessary stress!

From my experience, I see there is room for a greater mixture of cultures, for example, a mix of the nationality of cabin crews, food, music, food, etc.

Flight was cancelled around 45 -1hr minutes before scheduled take off time due to mechanical issues we hadn’t even boarded yet. Had to reroute to Orlando so someone had to drive 2 1/2 to come and get me… the alternative was go through Toronto and get a later flight which didn’t work for my schedule. The flight attendants barely gave anyone a smile…not the same as flying when a client/passenger was important. Very disappointed. By the way I have never ever made a complaint online about any company with feedback…even when I probably should have. The only good experience was the boarding desk associates who were very professional and got me on another flight with my checked bags…very nice team.

Actually as my experience with air Canada from Canada to Newark it was crazy for me because it was a lot of delays which for me it shouldn’t be like that, but I was able to coup with it so that was my experience I hope next time they will do good on that thanks.

Delayed delayed delayed cancelled and all we got was $60 food or beverage Embarrassing I'd say

on time quick service but food so so and seats very small. no leg room. I think passengers should not be bringing so large carry on suitcases and should have free check in. Then boarding and unloading would be faster

It was fine. There were a couple of mechanical delays prior to takeoff but it was overall a quick and pleasant flight.

I don’t understand why a reputable airline like BA would delegate their London flights to AA. Makes no sense to me, as most domestic carriers do such a poor job these days. Terminal 3 at LHR is a total dump

Uncomfortable seats. Crazy seat assignments separating families when they could easily have put them together. Good communication from pilot about arrival time after delay in departure. Toilet ran out of water in sink. Snack box poor for flight of this length.

The bed in Club class was not very comfortable, everything else was good.

Cancelled flight minutes before boarding. Rescheduled flight was two days later

The flight attendants were EXTREMELY personable and appreciated the service, lights going off after dinner (probably the norm, but I haven’t flown evening overnight flights in a while). Thank you!

Great room between the seats, food was excellent, very comfortable overall and could have stayed on the plane even longer

I have noticed that the airlines, including this flight, pretend there is going to be turbulence, announce such, and say they can’t do beverage service. There is no turbulence and the seat belt light goes off 10 minutes before they ask for tray tables up and seat belts back on. They are just trying to spend less money and it’s quite transparent

Business class seats were very dated on my plane. Very little storage, charging ports were not easily accessible, tv screen kept flopping away. Vegetarian food was disappointing: hardly any protein and severely under-seasoned. Crew was lovely.

The food was ok, but not great. They delayed boarding in Portland and did not enforce group boarding. But the crew was excellent, went above and beyond.

The food was pathetic. There wasn't much leg room and recline space for such a long flight. No tea/ coffee for a 2-3 hour connecting flight without purchasing! Really!?

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

Information on your arrival and departure airports

Not what you’re looking for? Find thousands of other hotels, flights, car hires and package deals with KAYAK.