Find flights
Deals
When to book
Airlines
FAQs

Cheap flights from Montreal Pierre Elliott Trudeau Intl Airport to London from £242

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 25/5. Fares are subject to change and may not be available on all flights or dates of travel.
YUL — LON
27 Apr — 4 May1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Montreal Pierre Elliott Trudeau Intl to London are usually found in November or May, booked 86 days in advance, depart on a Sunday or Friday and return on a Friday

Cheap flight deals from Pierre Elliott Trudeau Intl to London

Enter your travel dates to find the best prices.

Cheapest flights from Pierre Elliott Trudeau Intl to London
Explore the most affordable flight options available from Pierre Elliott Trudeau Intl to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 28 March 2026.

Thu 7/522:05
YUL
-
LGW
Nonstop6h 45m
Air Transat
Wed 13/512:40
LGW
-
YUL
1 stop26h 22m
Air Transat
Deal found 23/3£419
Tue 19/506:45
YUL
-
STN
2 stops25h 40m
Multiple Airlines
Tue 26/522:00
STN
-
YUL
2 stops31h 25m
Multiple Airlines
Deal found 23/3£421
Mon 1/622:45
YUL
-
LHR
1 stop18h 15m
TAP AIR PORTUGAL
Mon 8/608:00
LHR
-
YUL
1 stop18h 10m
TAP AIR PORTUGAL
Deal found 24/3£421
Tue 19/516:15
YUL
-
LGW
1 stop13h 30m
Air Transat
Wed 27/512:40
LGW
-
YUL
1 stop11h 40m
Air Transat
Deal found 24/3£422
Thu 7/522:05
YUL
-
LGW
Nonstop6h 45m
Air Transat
Thu 14/512:40
LGW
-
YUL
1 stop12h 50m
Air Transat
Deal found 23/3£423
Sun 31/506:45
YUL
-
LGW
1 stop23h 00m
Air Transat
Sun 7/611:35
LGW
-
YUL
Nonstop7h 40m
Air Transat
Deal found 24/3£425
Mon 8/622:45
YUL
-
LHR
1 stop15h 05m
TAP AIR PORTUGAL
Mon 22/611:20
LHR
-
YUL
1 stop14h 50m
TAP AIR PORTUGAL
Deal found 23/3£425
Tue 19/519:20
YUL
-
LTN
2 stops22h 30m
Multiple Airlines
Wed 27/506:15
LTN
-
YUL
2 stops23h 10m
Multiple Airlines
Deal found 24/3£425
Tue 19/519:20
YUL
-
STN
2 stops22h 20m
Multiple Airlines
Wed 27/509:55
STN
-
YUL
3 stops37h 25m
Multiple Airlines
Deal found 24/3£425
Sat 9/522:05
YUL
-
LGW
Nonstop6h 45m
Air Transat
Sat 16/511:35
LGW
-
YUL
Nonstop7h 40m
Air Transat
Deal found 25/3£425
Mon 1/622:45
YUL
-
LHR
1 stop15h 05m
TAP AIR PORTUGAL
Sun 14/618:45
LHR
-
YUL
1 stop31h 25m
TAP AIR PORTUGAL
Deal found 26/3£425
Tue 2/606:45
YUL
-
STN
2 stops34h 55m
Multiple Airlines
Mon 8/622:00
STN
-
YUL
2 stops31h 25m
Multiple Airlines
Deal found 23/3£426

Find flight deals from Pierre Elliott Trudeau Intl to London

Discover tips and strategies to find the most affordable flight options for your journey from Pierre Elliott Trudeau Intl (YUL) to London (LON). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 28 March 2026.

Round-trip from

£421

One-way from

£242

Popular in

December

Cheapest in

November

Average price

£515

Good round-trip deal

£601 or less

Good one-way deal

£331 or less
19/5-26/5
  • 19/5-26/5
  • 4 total stops
  • 57h 05m total
  • Montreal to London
Search Deals
TAP AIR PORTUGAL
  • TAP AIR PORTUGAL
  • 25/5
  • 1 total stop
  • 11h 50m total
  • Montreal to London
Search Deals
Highest demand for flights based on searches. 3% potential increase in price (£16 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£14 potential savings vs. average return price).
Search Deals
Average for round-trip flights in March 2026
Search Deals
Price to beat on a round-trip flight from Montreal Pierre Elliott Trudeau Intl to London (LON).
Search Deals
Price to beat on a one-way flight from Montreal Pierre Elliott Trudeau Intl to London (LON).
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Pierre Elliott Trudeau Intl to London that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 28 March 2026.
Use the filters below to find and compare flights from Montreal Pierre Elliott Trudeau Intl Airport to London that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

MontrealLondon

YUL - LGW

YULLGW

Montreal Pierre Elliott Trudeau Intl

Sun 3/5

20:35-10:45

1 stop9h 10m

London Gatwick

Wed 13/5

11:35-14:15

Nonstop7h 40m

£434

MontrealLondon

YUL - LGW

YULLGW

Montreal Pierre Elliott Trudeau Intl

Mon 4/5

20:35-10:45

1 stop9h 10m

London Gatwick

Sun 10/5

11:35-14:15

Nonstop7h 40m

£434

MontrealLondon

YUL - LGW

YULLGW

Montreal Pierre Elliott Trudeau Intl

Mon 4/5

20:35-10:45

1 stop9h 10m

London Gatwick

Thu 14/5

12:40-19:20

1 stop11h 40m

£440

MontrealLondon

YUL - LGW

YULLGW

Montreal Pierre Elliott Trudeau Intl

Sat 9/5

22:05-09:50

Nonstop6h 45m

London Gatwick

Fri 22/5

11:35-14:15

Nonstop7h 40m

£451

MontrealLondon

YUL - LTN

YULLTN

Montreal Pierre Elliott Trudeau Intl

Mon 11/5

21:30-13:15

1 stop10h 45m

London Luton

Mon 18/5

19:40-11:35

1 stop20h 55m

£454

MontrealLondon

YUL - LGW

YULLGW

Montreal Pierre Elliott Trudeau Intl

Mon 11/5

20:35-10:45

1 stop9h 10m

London Gatwick

Wed 27/5

11:35-14:15

Nonstop7h 40m

£457

MontrealLondon

YUL - LGW

YULLGW

Montreal Pierre Elliott Trudeau Intl

Fri 8/5

20:35-10:45

1 stop9h 10m

London Gatwick

Mon 11/5

12:40-19:30

1 stop11h 50m

£465

MontrealLondon

YUL - LTN

YULLTN

Montreal Pierre Elliott Trudeau Intl

Tue 19/5

21:30-22:25

1 stop19h 55m

London Luton

Wed 27/5

19:20-11:35

1 stop21h 15m

£500

MontrealLondon

YUL - LTN

YULLTN

Montreal Pierre Elliott Trudeau Intl

Wed 3/6

19:00-21:25

1 stop21h 25m

London Luton

Sat 20/6

18:10-10:40

1 stop21h 30m

£520

MontrealLondon

YUL - LGW

YULLGW

Montreal Pierre Elliott Trudeau Intl

Wed 3/6

15:10-10:45

1 stop14h 35m

London Gatwick

Sun 7/6

11:35-14:15

Nonstop7h 40m

£522

Flights are sorted by cheapest return flights first.

Deals found on 27/3

Showing 1-10 of 60 resultsSorted by cheapest first
1
2
3
...
6

Best time to book a flight from Pierre Elliott Trudeau Intl to London

Have a flexible travel schedule? Discover the best time to fly to London from Pierre Elliott Trudeau Intl with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Montreal Pierre Elliott Trudeau Intl Airport to London

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

Use this chart to determine the optimal time to book a return flight from Pierre Elliott Trudeau Intl to London. Price data was last updated on 13 March 2026.

Booking 86 days in advance of your planned departure date is, on average, the best time to get cheap flights from Montreal Pierre Elliott Trudeau Intl Airport to London. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Montreal Pierre Elliott Trudeau Intl Airport to London?

Currently, December is the cheapest month in which you can book a flight from Montreal Pierre Elliott Trudeau Intl Airport to London (average of £259). Flying from Montreal Pierre Elliott Trudeau Intl Airport to London in July is currently the most expensive (average of £485). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from YUL to LON?

Find hourly flight availability from Pierre Elliott Trudeau Intl to London. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 28 March 2026.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Montreal Pierre Elliott Trudeau Intl Airport to London as you normally would.

How much does it cost for a return flight from Montreal Pierre Elliott Trudeau Intl Airport to London?

What’s the top stopover airport for flights from Montreal Pierre Elliott Trudeau Intl Airport to London?

Share of one-stop return flights from Montreal Pierre Elliott Trudeau Intl Airport to London chosen by Cheapflights users in the past 12 months, using the same stopover each way.

Newark (EWR) – chosen by Cheapflights users on 36% of one-stop itineraries from Montreal Pierre Elliott Trudeau Intl Airport to London on Cheapflights.

What’s the cheapest stopover airport for flights from Montreal Pierre Elliott Trudeau Intl Airport to London?

Average return fare for one-stop flights from Montreal Pierre Elliott Trudeau Intl Airport to London, chosen by Cheapflights users in the past 12 months, with the same stopover each way.

Newark (EWR) is the most affordable one-stop option, with an average return flight price of £566.

What’s the fastest stopover option from Montreal Pierre Elliott Trudeau Intl Airport to London?

Shortest average travel time for one-stop one-way flights from Montreal Pierre Elliott Trudeau Intl Airport to London, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by stopover airport.

Flights via Newark (EWR) have the shortest average one-way travel time for one-stop routes: 10h 20m.

Which airport typically offers the quickest stopover for flights from Montreal Pierre Elliott Trudeau Intl Airport to London?

Average stopover duration for one-stop one-way flights from Montreal Pierre Elliott Trudeau Intl Airport to London, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Newark (EWR) offer the fastest connection on this route, with an average stopover time of 1h 20m.

How often are flights from Montreal to London delayed?

About 20% of weekly flights between Montreal and London have experienced delays in the past year, with the average delay time being 147 minutes.

What is the most punctual flight time for Montreal to London flights?

Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the evening tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Thursday tends to have the lowest number of delays on this route, whereas Sunday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on Montreal to London flights?

Over the past year, Air Transat have had the lowest number of delays on this route, with just 11% of flights being delayed.

Reviews of airlines servicing London

Get insights into the airlines that provide service to London. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to London. Reviews last updated 28 March 2026.
Get a feel of what it's like to fly with Air Transat,Air Canada, andBritish Airways from Montreal Pierre Elliott Trudeau Intl Airport to London by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Air Transat
7.7
Good
527 reviews
Check prices

Entertainment

7.0

Comfort

7.3

Overall

7.7

Food

6.8

Crew

8.4

Boarding

7.9

Reviews

1 / 20
2.0
Mediocre

Anonymous,Dec 2025

YOW - GCM

The flight was delayed for 3.5 hours. No compensation for a meal voucher. We were positioned at the back of the plane and the toilets were not working properly. It was a foul smell coming from the toilet.
Air Transat
7.7
Good
527 reviews
Air Transat
7.7
Good
527 reviews
Check prices

Entertainment

7.0

Comfort

7.3

Overall

7.7

Food

6.8

Crew

8.4

Boarding

7.9

Reviews

1 / 20
2.0
Mediocre

Anonymous,Dec 2025

YOW - GCM

The flight was delayed for 3.5 hours. No compensation for a meal voucher. We were positioned at the back of the plane and the toilets were not working properly. It was a foul smell coming from the toilet.
Air Canada
7.1
Good
10,853 reviews
Air Transat
7.7
Good
527 reviews
Check prices

Entertainment

7.0

Comfort

7.3

Overall

7.7

Food

6.8

Crew

8.4

Boarding

7.9

Reviews

1 / 20
2.0
Mediocre

Anonymous,Dec 2025

YOW - GCM

The flight was delayed for 3.5 hours. No compensation for a meal voucher. We were positioned at the back of the plane and the toilets were not working properly. It was a foul smell coming from the toilet.
British Airways
6.7
Okay
7,825 reviews
Air Transat
7.7
Good
527 reviews
Check prices

Entertainment

7.0

Comfort

7.3

Overall

7.7

Food

6.8

Crew

8.4

Boarding

7.9

Reviews

1 / 20
2.0
Mediocre

Anonymous,Dec 2025

YOW - GCM

The flight was delayed for 3.5 hours. No compensation for a meal voucher. We were positioned at the back of the plane and the toilets were not working properly. It was a foul smell coming from the toilet.

Related info for your journey

Find useful and relevant information for your journey from Pierre Elliott Trudeau Intl to London. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Montreal Pierre Elliott Trudeau Intl Airport to London?

    There are many flights that can get you from Montreal Pierre Elliott Trudeau Intl Airport to London in 6h 40m. Fly via Air Transat, Lufthansa, or British Airways to get the fastest option. The distance between Montreal Pierre Elliott Trudeau Intl Airport and London is about 3239 mi. Both multi-stop and direct flights can be found to your destination and back.

  • What are the cheapest airlines flying from Montreal Pierre Elliott Trudeau Intl Airport to London round-trip?

    Currently priced at £402, Air Canada will fly you from Montreal Pierre Elliott Trudeau Intl Airport to London and back. In addition to Air Canada, many other airlines offer competitively priced options for your trip. Check Cheapflights for deals on British Airways for as low as £414. Users have found that Air Canada is 22% cheaper than the other options available to this destination.

  • What are the most popular routes from Montreal Pierre Elliott Trudeau Intl Airport to London?

    When deciding which route to take from Montreal Pierre Elliott Trudeau Intl Airport to London consider Montreal Pierre Elliott Trudeau Intl - London Heathrow, Montreal Pierre Elliott Trudeau Intl - London Gatwick or Montreal Pierre Elliott Trudeau Intl - London Stansted as they are the most popular.

  • What are the most reliable airlines from Montreal Pierre Elliott Trudeau Intl Airport to London?

    Before booking your flight to London from Montreal Pierre Elliott Trudeau Intl Airport, check out the most reliable airlines to get you to your destination on time: Aegean Airlines (81%), Egyptair (75%), Thai Airways( 75%).

  • What are the cheapest flights from Montreal Pierre Elliott Trudeau Intl Airport to London?

    While on average a flight from Montreal Pierre Elliott Trudeau Intl Airport to London is generally £610, our data shows the cheapest flight currently is £451. When looking at the most popular route, (Montreal Pierre Elliott Trudeau Intl - London Heathrow), you can expect to pay £405 for that flight.

  • Can I find deals for flights from Pierre Elliott Trudeau Intl to London that include hotel bookings?

    Yes. In addition to deals on Pierre Elliott Trudeau Intl to London flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Pierre Elliott Trudeau Intl to London?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Pierre Elliott Trudeau Intl to London.

  • Can I find deals for business class flights from Pierre Elliott Trudeau Intl to London?

    Yes. Cheapflights offers flight deals from Pierre Elliott Trudeau Intl to London by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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

    Currently, December is the cheapest month in which you can book a flight from Montreal Pierre Elliott Trudeau Intl Airport to London (average of £259). Flying from Montreal Pierre Elliott Trudeau Intl Airport to London in July is currently the most expensive (average of £485). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Travelling to a place near London?

Book flights to London if you plan to visit one of these locations
Milton Keynes
Wembley
Croydon
Hounslow
Luton
Gatwick
Slough
Ilford
Hayes
Brentford
Colchester
Eastbourne
Guildford
Watford
Kingston upon Thames
Romford
Ipswich
Bedford
Chelmsford
Bishop's Stortford

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 2 airlines flying from Pierre Elliott Trudeau Intl to London

Discover the top 2 airlines that operate flights from Pierre Elliott Trudeau Intl to London. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 28 March 2026.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest£402Average£490FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
British AirwaysCheapest£414Average£608FlexibilityNo cancel feeOn-time70%
Search British Airways flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Pierre Elliott Trudeau Intl to London?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Pierre Elliott Trudeau Intl to London. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from Pierre Elliott Trudeau Intl to London?

Millions of users choose and trust Cheapflights to book the best flight deals from Pierre Elliott Trudeau Intl to London for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from Pierre Elliott Trudeau Intl to London with no change fees?

Certainly. Search results for flights to London from Pierre Elliott Trudeau Intl shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from Pierre Elliott Trudeau Intl to London become cheaper?

Of course! You can now track prices for flights from Pierre Elliott Trudeau Intl to London and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.