YUL - LON

£221 Find Cheap Flights from Montreal to London – 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 Montreal to London departing on 18/9. 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
1 adult, Economy, 0 bags

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Everything you should know

Cheapest return fare
£388
Typical prices: £402-£513
Air Transat
Sun 6/9Mon 14/9
YUL - LGW • Direct
Cheapest one-way flight
£220
Multiple Airlines
Fri 18/9
YUL - STN • 1 stop
Advice from real travellers
AI-powered summary based on content written by travel experts. AI can make mistakes.
Lufthansa Premium Economy adds space and a 23 kg checked bag.
Air Transat Eco Budget includes a meal; BA premium economy adds legroom.
Expert advice
Expert advice
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Top airlines
Cheapest • from £388 (return)
Best reviews • 7.8 score
Airline reviews
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Direct flights
You can fly direct with Air Canada, Air Transat, and British Airways. Average duration is 6h 46m
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Top routes
Cheapest • 11% average savings
Most popular
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Avoid delays
Most punctual • 89% on-time
Best time • Fewest delays
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Top stopover airports
Cheapest • Avg £337 (return)
Shortest trip • 9h 10m (one-way)
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When to book
in advance
Our data shows that travellers who book at least 6 weeks in advance save around 13% compared to booking last minute.
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When to travel
Cheapest • 16% price drop
Most popular
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Flight Deals

Cheap Flights from Montreal to London (YUL-LON)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Montreal to London 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 return flight deals from Montreal to London

Sun, 6 Sep - Mon, 14 Sep
Air Transat Logo
22:05 - 09:50
YUL
-
LGW
6h 45mdirect
Air Transat Logo
11:35 - 14:15
LGW
-
YUL
7h 40mdirect
£388Air Transat
Thu, 17 Sep - Sun, 20 Sep
Air Transat Logo
22:05 - 09:50
YUL
-
LGW
6h 45mdirect
Air Transat Logo
11:35 - 14:15
LGW
-
YUL
7h 40mdirect
£388Air Transat
Sat, 5 Sep - Thu, 10 Sep
Air Transat Logo
23:35 - 11:20
YUL
-
LGW
6h 45mdirect
Air Transat Logo
11:35 - 14:15
LGW
-
YUL
7h 40mdirect
£388Air Transat
Fri, 2 Oct - Fri, 9 Oct
Air Transat Logo
06:45 - 10:45
YUL
-
LGW
23h 00m
1 stop
Air Transat Logo
12:40 - 00:37
LGW
-
YUL
16h 57m
1 stop
£389Air Transat
Fri, 28 Aug - Sat, 5 Sep
Air Canada Logo
18:40 - 06:30
YUL
-
LHR
6h 50mdirect
Air Canada Logo
14:05 - 16:40
LHR
-
YUL
7h 35mdirect
£458Air Canada
Fri, 4 Sep - Thu, 10 Sep
Air Canada Logo
18:40 - 06:30
YUL
-
LHR
6h 50mdirect
Air Canada Logo
14:05 - 16:40
LHR
-
YUL
7h 35mdirect
£458Air Canada
Wed, 16 Sep - Wed, 23 Sep
Air Canada Logo
22:10 - 10:00
YUL
-
LHR
6h 50mdirect
Air Canada Logo
09:30 - 12:00
LHR
-
YUL
7h 30mdirect
£458Air Canada
Tue, 15 Sep - Wed, 20 Jan
British Airways Logo
22:00 - 09:40
YUL
-
LHR
6h 40mdirect
British Airways Logo
16:45 - 19:15
LHR
-
YUL
7h 30mdirect
£473British Airways
Tue, 15 Sep - Wed, 20 Jan
British Airways Logo
22:00 - 09:40
YUL
-
LHR
6h 40mdirect
British Airways Logo
16:45 - 19:15
LHR
-
YUL
7h 30mdirect
£474British Airways
Thu, 24 Sep - Sun, 4 Oct
British Airways Logo
22:00 - 09:40
YUL
-
LHR
6h 40mdirect
British Airways Logo
18:05 - 20:15
LHR
-
YUL
7h 10mdirect
£513British Airways
Booking Insights

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.

How much is a return flight from Montreal Pierre Elliott Trudeau Intl Airport to London?

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

Flight prices are below average for this route right now.

Flights to London from Montreal Pierre Elliott Trudeau Intl Airport usually cost between £534 and £706 in September.
The lowest price found in the past 5 days was £388 on Air Transat (5 Sept–10 Sept).

What is the cheapest Montreal Pierre Elliott Trudeau Intl Airport to London flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest return flight from Montreal Pierre Elliott Trudeau Intl Airport to London costs £367 on the route between Montreal Pierre Elliott Trudeau Intl Airport (YUL) and London Gatwick Airport (LGW). Over the past month, this route was, on average, 11% cheaper than other Montreal Pierre Elliott Trudeau Intl Airport-London routes. The most popular route is between Montreal Pierre Elliott Trudeau Intl Airport (YUL) and London Heathrow Airport (LHR).

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

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

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

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

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, 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 is November, where tickets cost £457 (return) on average. On the other hand, the most expensive months are December and August, where the average cost of round-trip tickets is £691 and £615 respectively.

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

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.

Yes, flying with a stopover may cost you more time, but you can also save money on the route, with a 1 stop stopover the cheapest option at £546 on average.

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

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, 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, you should book around 6 weeks before departure, which saves you about 13% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 11 weeks before departure.

Expert advice

Expert advice for your flight from Montreal to London

 
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
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 travelled to more than 50 countries across six continents.

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

Duncan Madden

Duncan Madden

Expert on British Airways

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.

John Walton

John Walton

Expert on Air Transat

Independent aviation journalist John Walton took his first flight at eight weeks old and hasn’t stopped travelling since. A world-renowned expert in airlines and the passenger experience, he writes in depth on aviation, is a resident expert on travel in Japan and France, and offers a uniquely queer perspective on travelling the world.

Brandon Schultz

Brandon Schultz

Expert on YUL

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.

Kirstie Pickering

Kirstie Pickering

Expert on LHR and LGW

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.

Good to know - Cheap tickets from Montreal to London

Low season

February
Best time to beat the crowds (4% less expensive on average)
Most popular time to fly (5% more expensive on average)

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 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 flights

  • What dining options are available at Montreal Airport?

    There are more than 30 restaurants and cafés at Montreal-Trudeau Airport, so travelers don’t have to fly on an empty stomach. Dine at European-style bistros, sports bars or fast food outlets, or enjoy a cocktail or microbrew at one of the bars. There are also family-friendly options such as pizza and burger joints as well as healthy options for juices and gourmet salads.

  • Is there a concierge service at Montreal Airport?

    SAVM offers meet and greet services for passengers travelling through Montreal-Trudeau Airport. Passengers will be accompanied throughout their stay at the airport, and offered personalized assistance with check-in, luggage, security and boarding. Private transfers and access to VIP lounges can also be arranged.

  • What facilities are available at Heathrow Airport for families travelling with children?

    Parents travelling with children can take advantage of family-friendly amenities at Heathrow Airport, including a number of Stay & Play areas in the terminal. These areas have interactive slides and activity sheets to keep little ones entertained. A number of restaurants also offer kids menus and high chairs.

  • What is the fastest way to get to central London from Heathrow Airport?

    The Heathrow Express runs from the airport to central London in about 15 minutes. Trains depart from Terminals 2 and 3 and tickets can be purchased online, at the station or on the train. Amenities include air-conditioning, ample luggage space, free Wi-Fi and on-board TV.

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

    In the last 5 days, the lowest price for a flight from Montreal Pierre Elliott Trudeau Intl Airport to London was £221 for a one-way ticket and £388 for a return.

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

    When flying out of Montreal you will be using Montreal Pierre Elliott Trudeau Intl. You will be landing at one of these airports: London Heathrow or London Stansted.

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

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

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

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

  • Which airline alliances offer flights from Montreal to London?

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

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

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

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

    The two airlines most popular with KAYAK users for flights from Montreal to London are Air Transat and Air Canada. With an average price for the route of £506 and an overall rating of 7.8, Air Transat is the most popular choice. Air Canada is also a great choice for the route, with an average price of £566 and an overall rating of 7.1.

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

    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.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to London 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?

    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 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?

    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 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

  • Looking for a cheap flight from London to Montreal? 25% of our users found flights on this route for £297 or less one-way and £462 or less round-trip.
  • Flights from Montreal to London depart from Montreal Pierre Elliott Trudeau International Airport and have an average flight time of 7 hours. Flights can be booked through a number of airlines including SWISS, Delta, Air Transat, Air Canada and Icelandair. Direct flights from Montreal to London are generally more expensive.
  • London is served by a number of airports so it is important to check where you’re staying in the UK before you book your flight. Heathrow Airport is located about 30 kilometers west of London and has the most connections to the city. Gatwick is located 45 kilometers to the south and Stanstead is 60 kilometers north-east of central London.
  • If you are looking for something to read on your flight from Montreal-Trudeau Airport, the lirevoustransporte.com platform has a collection of electronic books for passengers to download to a phone or device. Travelers have access to the first chapter and can borrow the full book from the BAnQ portal or purchase it in print or digital format.
  • International travelers can purchase a range of duty-free items at Montreal-Trudeau Airport including perfume, cosmetics, confectionary and liquor. If you’re running short on time, browse through the online catalogue, pre-order your items and simply pick up your purchases when you get to the airport. Duty-free shops are located near Gates 52 and 75.
  • If you are arriving on an early flight and want to go sightseeing in London without bringing your luggage, Transferbags can deliver your bags from Heathrow Airport directly to your hotel, accommodation or office. Your bags will be ready for collection at your chosen destination as soon as you arrive. This service can be booked online or at Heathrow Airport.

Prefer to fly direct from Montreal to London?

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

Direct departures

Montreal Pierre Elliott Trudeau Intl to London

Monday

Air Canada,Air Transat,British Airways

Air Canada,Air Transat, +1 more

Tuesday

Air Canada,Air Transat,British Airways

Air Canada,Air Transat, +1 more

Wednesday

Air Canada,Air Transat,British Airways

Air Canada,Air Transat, +1 more

Thursday

Air Canada,Air Transat,British Airways

Air Canada,Air Transat, +1 more

Friday

Air Canada,Air Transat,British Airways

Air Canada,Air Transat, +1 more

Saturday

Air Canada,Air Transat,British Airways

Air Canada,Air Transat, +1 more

Sunday

Air Canada,Air Transat,British Airways

Air Canada,Air Transat, +1 more

See more direct flights

Direct returns

London to Montreal Pierre Elliott Trudeau Intl

Monday

Air Canada,Air Transat,British Airways

Air Canada,Air Transat, +1 more

Tuesday

Air Canada,Air Transat,British Airways

Air Canada,Air Transat, +1 more

Wednesday

Air Canada,Air Transat,British Airways

Air Canada,Air Transat, +1 more

Thursday

Air Canada,Air Transat,British Airways

Air Canada,Air Transat, +1 more

Friday

Air Canada,Air Transat,British Airways

Air Canada,Air Transat, +1 more

Saturday

Air Canada,Air Transat,British Airways

Air Canada,Air Transat, +1 more

Sunday

Air Canada,Air Transat,British Airways

Air Canada,Air Transat, +1 more

See more direct flights

Reviews of the top 3 airlines flying 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.
7.8
Air TransatOverall score based on 568 reviews
8.0Boarding
7.3Comfort
7.1Entertainment
8.5Crew
6.8Food
Airline reviews

I liked the reliability. I liked less the chair comfort...

10.0 ExcellentMaria P, Jun 2026
YUL - MAD
Read more Air Transat reviews

I liked the reliability. I liked less the chair comfort...

I didn't have any problems during my flight. My main issue is with airlines in general, they keep offering less and less every year, AirTransat is no different.

We are a senior couple (70+) and chose emergency exit seats so we would have 2 seats together and neither of us had to sit in a middle seat. My husband is type 1 diabetic on an insulin pump and I monitor his blood sugar levels. I am 5'9" and 250 lbs and found the seats extremely uncomfortable. Toward the end of the flight I developed diarrhea which lasted a full 24 hours.

I was supose to have a carrey on incluided for each passenger and they made me paid 75$ each at the gate.

I did not like I have been charged for my carry on

It was very good but no tv but the experience was great

The flight crew were very good, polite, and professional. Unfortunately, the rest of the experience left much to be desired. The food was extremely bland—almost tasteless. We chose the non vegetarian .The lasagna was just plain pasta with a tiny garnish and no seasoning. It felt like eating starch only, The bigger issue was with luggage and space. We boarded with three tickets, and while the seats in front of us were nearly empty, all the overhead compartments had already been filled by passengers boarding to the back. This left us and many others with no overhead storage for our carry-ons. Our bags couldn’t fit well under the seats either, which meant we lost the little legroom we had. The result was a horrible, cramped experience—sore knees, no space to stretch, and no way to rest or sleep comfortably. According to the crew this was a rather normal thing. It is obviously normal that people board with handbag and carry on but they should be only allowed to use their overhead compartment and under their seat not the way it is managed that all the spaces in the front of the plane being occupied by the people sitting way back in the plane.

Nice complete meal included and great services. Plus the plane was very clean.

The plane was pretty full, and we dis not have any includes meal for our 4h30 flight? And on-board entertainment wasn't available, there was no TV or plugging to charger your device on the plane. They told us to download an app if we wanted to watch movies but it never connected, that was a disappointment, the r we st was very good though and the crew were really nice!

Not necessarily a Transat issue but it took 2 hours to go through immigration. Tried to reach out to Transat for resolution but was unable to reach an agent.

Terrible! Our flight was cancelled. No other nonstop flights available. Had to rent a car and drive 7 hours!

I really enjoyed the delicious food and the delicious breakfast; I also liked the seat—it was very comfortable—and the service was absolutely wonderful. The trip was smooth.

The food was awful. It had more than 2 hours delay. It was too expensive

They are offering less and less for more and more. They changed our seat that we paid extra to select at the last minute. The seats are way too narrow and my elbows went numb.

My original flight was canceled the day before due to mechanical issues. I had to rebook and spend $129 for a night at the airport Comfort Inn.

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.

Fight left on time Food was good Lots of entertainment Very uncomfortable

I was suppose to be preboarded, because of my child's allergies, but it wasn't done.

After we arrived at our gate, security staff changed it to"international", and rudely refused to explain to my wife why she could not go to the nearest restroom.

Didn’t even make this flight bc air Canada caused me to miss it and make an extra stop in Lyon France

All good, professional service, and arrived close to on time.

This was a special trip so we booked first class. It was obviously an old plane as the seats weren't that comfortable or spacious. We were delayed 45mins taking off as the "little engine that starts the big engines doesn't work". The powered divider between myself and the next seat in first class didn't work and my electrically powdered seat didn't work so I had to move seats to try and get some sleep. Food and drink were good, crew were great. But I'll never fly with BA again.

Need thicker and wider blankets. Food was below standard especially in the fist leg.

Decrepit planes, poor business class layout designed to maximize revenue, no decent movie selection.

Boarding was efficient. Flight left on time. Wasn’t full so we could spread out a bit. Food was ok.

The A350 is a great plane but BA's seating was incredibly tight (eg compared to the same plane as flown by BA's partner Finnair) and with a middle seat it was very claustrophobic

Staff and crew where very nice and friendly. Just need to improve the timming om the meal and beverages.

Lost bag - again. No help from staff at Nice - they have a handling agent who does nothing No emergency kit Try calling BA - they eventually found the bag - now on later flight. Trying to get someone to help in the short term is impossible. If I am unhappy - then I have to log it on a website. The agent said he was only able to help with future bookings - not assist in the chaos BA had caused. IF YOU WANT SERVICE WHEN THINGS GO WRONG - PICK ANYONE BUT BA. Personally - I'm joining ABBA (Anyone But BA) again.

I asked for assistance for my mobility issues. It took over 45 min to find someone to take me to the security. then I was deposited at the lounge and I was supposed to be picked up. No one came. I almost missed the flight. There was no offer of extra water, snacks or anything on the flight. Food was OK given that I am gluten and diary free. Seats were uncomfortable and very little stow away space.

The seat was a bit crowded since the person in front was reclined. It’s my personal belief that if the seats are allowed to recline, there should be more room. The service provided by the crew was the best I have experienced.

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

Information on your arrival and departure airports