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Cheap flights from Montreal Pierre Elliott Trudeau Intl Airport to London from C$ 339

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 18/3. Fares are subject to change and may not be available on all flights or dates of travel.
YUL — LON
12 Mar — 19 Mar1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Montreal Pierre Elliott Trudeau Intl to London are usually found in May or November, booked 86 days in advance, depart on a Sunday or Saturday and return on a Sunday

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 10 February 2026.

Fri 22/510:45 p.m.
YUL
-
LGW
1 stop11h 55m
TAP AIR PORTUGAL
Fri 5/610:35 a.m.
LGW
-
YUL
1 stop15h 35m
TAP AIR PORTUGAL
Deal found 8/2C$ 662
Mon 15/610:45 p.m.
YUL
-
LHR
1 stop15h 05m
TAP AIR PORTUGAL
Mon 22/68:00 a.m.
LHR
-
YUL
1 stop18h 10m
TAP AIR PORTUGAL
Deal found 7/2C$ 663
Mon 9/310:45 p.m.
YUL
-
LHR
1 stop19h 55m
TAP AIR PORTUGAL
Mon 16/38:15 a.m.
LHR
-
YUL
1 stop17h 00m
TAP AIR PORTUGAL
Deal found 7/2C$ 666
Mon 25/510:45 p.m.
YUL
-
LGW
1 stop11h 50m
TAP AIR PORTUGAL
Tue 2/64:25 p.m.
LGW
-
YUL
1 stop33h 20m
TAP AIR PORTUGAL
Deal found 9/2C$ 671
Sun 19/410:45 p.m.
YUL
-
LHR
1 stop15h 05m
TAP AIR PORTUGAL
Tue 28/47:50 p.m.
LHR
-
YUL
1 stop29h 55m
TAP AIR PORTUGAL
Deal found 9/2C$ 672
Mon 1/610:45 p.m.
YUL
-
LGW
1 stop11h 50m
TAP AIR PORTUGAL
Sun 14/610:35 a.m.
LGW
-
YUL
1 stop15h 35m
TAP AIR PORTUGAL
Deal found 7/2C$ 675
Fri 22/510:45 p.m.
YUL
-
LHR
1 stop18h 15m
TAP AIR PORTUGAL
Sun 31/57:50 p.m.
LHR
-
YUL
1 stop30h 20m
TAP AIR PORTUGAL
Deal found 6/2C$ 675
Mon 1/610:45 p.m.
YUL
-
LHR
1 stop15h 05m
TAP AIR PORTUGAL
Mon 8/61:45 p.m.
LHR
-
YUL
1 stop12h 25m
TAP AIR PORTUGAL
Deal found 7/2C$ 677
Fri 12/610:45 p.m.
YUL
-
LGW
1 stop11h 55m
TAP AIR PORTUGAL
Wed 24/610:35 a.m.
LGW
-
YUL
1 stop15h 10m
TAP AIR PORTUGAL
Deal found 8/2C$ 679
Wed 4/39:45 p.m.
YUL
-
LHR
1 stop14h 45m
TAP AIR PORTUGAL
Mon 16/38:15 a.m.
LHR
-
YUL
1 stop17h 00m
TAP AIR PORTUGAL
Deal found 7/2C$ 679
Mon 1/610:45 p.m.
YUL
-
LHR
1 stop15h 05m
TAP AIR PORTUGAL
Wed 10/66:00 a.m.
LHR
-
YUL
1 stop19h 45m
TAP AIR PORTUGAL
Deal found 7/2C$ 681
Fri 5/610:45 p.m.
YUL
-
LHR
1 stop14h 00m
TAP AIR PORTUGAL
Mon 15/68:00 a.m.
LHR
-
YUL
1 stop18h 10m
TAP AIR PORTUGAL
Deal found 9/2C$ 682

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 10 February 2026.

Round-trip from

C$ 662

One-way from

C$ 339

Popular in

December

Cheapest in

May

Average price

C$ 961

Good round-trip deal

C$ 185 or less

Good one-way deal

C$ 216 or less
TAP AIR PORTUGAL
  • TAP AIR PORTUGAL
  • 22/5-5/6
  • 2 total stops
  • 27h 30m total
  • Montreal to London
Search Deals
18/3
  • 18/3
  • 1 total stop
  • 17h 25m total
  • Montreal to London
Search Deals
Highest demand for flights based on searches. 3% potential increase in price (C$ 45 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (C$ 41 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 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

 
Customize 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 629,999 searches. Data last updated 10 February 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

Pierre Elliott Trudeau Intl

Fly to

London

Route

Depart

Return

Price

MontrealLondon

YUL - LGW

YULLGW

Montreal Pierre Elliott Trudeau Intl

Thu 21/5

10:05 p.m.-9:50 a.m.

Nonstop6h 45m

London Gatwick

Sun 24/5

11:35 a.m.-2:15 p.m.

Nonstop7h 40m

C$ 742

MontrealLondon

YUL - LGW

YULLGW

Montreal Pierre Elliott Trudeau Intl

Thu 21/5

10:05 p.m.-9:50 a.m.

Nonstop6h 45m

London Gatwick

Fri 29/5

11:35 a.m.-2:15 p.m.

Nonstop7h 40m

C$ 742

MontrealLondon

YUL - LGW

YULLGW

Montreal Pierre Elliott Trudeau Intl

Fri 22/5

10:05 p.m.-9:50 a.m.

Nonstop6h 45m

London Gatwick

Sun 24/5

11:35 a.m.-2:15 p.m.

Nonstop7h 40m

C$ 742

MontrealLondon

YUL - LTN

YULLTN

Montreal Pierre Elliott Trudeau Intl

Mon 9/3

9:10 p.m.-5:10 p.m.

1 stop16h 00m

London Luton

Mon 16/3

11:20 a.m.-1:35 p.m.

1 stop30h 15m

C$ 743

MontrealLondon

YUL - LGW

YULLGW

Montreal Pierre Elliott Trudeau Intl

Sat 2/5

10:05 p.m.-9:50 a.m.

Nonstop6h 45m

London Gatwick

Fri 8/5

11:35 a.m.-2:15 p.m.

Nonstop7h 40m

C$ 749

MontrealLondon

YUL - LGW

YULLGW

Montreal Pierre Elliott Trudeau Intl

Tue 5/5

10:05 p.m.-9:50 a.m.

Nonstop6h 45m

London Gatwick

Mon 11/5

12:40 p.m.-7:30 p.m.

1 stop11h 50m

C$ 751

MontrealLondon

YUL - LGW

YULLGW

Montreal Pierre Elliott Trudeau Intl

Sat 23/5

10:05 p.m.-9:50 a.m.

Nonstop6h 45m

London Gatwick

Thu 28/5

12:40 p.m.-7:20 p.m.

1 stop11h 40m

C$ 751

MontrealLondon

YUL - LGW

YULLGW

Montreal Pierre Elliott Trudeau Intl

Fri 22/5

10:05 p.m.-9:50 a.m.

Nonstop6h 45m

London Gatwick

Wed 27/5

12:40 p.m.-7:20 p.m.

1 stop11h 40m

C$ 751

MontrealLondon

YUL - LGW

YULLGW

Montreal Pierre Elliott Trudeau Intl

Sat 2/5

10:05 p.m.-9:50 a.m.

Nonstop6h 45m

London Gatwick

Tue 12/5

12:40 p.m.-7:20 p.m.

1 stop11h 40m

C$ 751

MontrealLondon

YUL - LGW

YULLGW

Montreal Pierre Elliott Trudeau Intl

Wed 25/3

9:10 p.m.-5:45 p.m.

1 stop16h 35m

London Gatwick

Wed 1/4

5:55 p.m.-12:50 p.m.

1 stop23h 55m

C$ 772

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/2

Showing 1-10 of 60 results
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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 round-trip 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 round-trip flight from Pierre Elliott Trudeau Intl to London. Price data was last updated on 6 February 2026.

The price you pay for your flight from Montreal Pierre Elliott Trudeau Intl Airport to London may vary depending on when you book. For the best chance of a lower fare, look to book 86 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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 C$ 468). Flying from Montreal Pierre Elliott Trudeau Intl Airport to London in July is currently the most expensive (average of C$ 878). 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 10 February 2026.

When flying from Montreal Pierre Elliott Trudeau Intl Airport to London, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from Montreal Pierre Elliott Trudeau Intl Airport to London

Explore weekly flight availability from Pierre Elliott Trudeau Intl to London. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 10 February 2026.

The most flights from YUL to LON are scheduled on a Sunday (13 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (7 on average).

How much does it cost to fly round-trip from Montreal Pierre Elliott Trudeau Intl Airport to London?

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

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

Toronto (YYZ) – chosen by Cheapflights users on 47% of one-stop itineraries from Montreal Pierre Elliott Trudeau Intl Airport to London on Cheapflights.

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

Average round-trip fare for 1-stop flights from Montreal Pierre Elliott Trudeau Intl Airport to London, chosen by Cheapflights users in the past 12 months, with the same layover each way.

Toronto (YYZ) is the most affordable 1-stop option, with an average round-trip price of C$ 752.

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

Shortest average travel time for 1-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 layover airport.

Flights via Ottawa (YOW) have the shortest average one-way travel time for 1-stop routes: 9h 00m.

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

Average layover duration for 1-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 layover time of 1h 20m.

How often are flights from Montreal to London delayed?

About 21% of weekly flights between Montreal and London have experienced delays in the past year, with the average delay time being 158 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?

Wednesday 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 has had the lowest number of delays on this route, with just 7% 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 10 February 2026.
Get a feel of what it's like to fly with Porter Airlines,Air Transat, andAir Canada 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.
Porter Airlines
7.9
Good
414 reviews
Check prices

Entertainment

6.9

Crew

8.6

Comfort

7.9

Overall

7.9

Food

7.5

Boarding

8.2

Reviews

1 / 20
2.0
Mediocre

Milad,Feb 2026

LIR - YYZ

Not helpful staff at Liberia airport at the check-in counter. Extremely poor skill people and not willing to help the passenger.
Porter Airlines
7.9
Good
414 reviews
Porter Airlines
7.9
Good
414 reviews
Check prices

Entertainment

6.9

Crew

8.6

Comfort

7.9

Overall

7.9

Food

7.5

Boarding

8.2

Reviews

1 / 20
2.0
Mediocre

Milad,Feb 2026

LIR - YYZ

Not helpful staff at Liberia airport at the check-in counter. Extremely poor skill people and not willing to help the passenger.
Air Transat
7.7
Good
506 reviews
Porter Airlines
7.9
Good
414 reviews
Check prices

Entertainment

6.9

Crew

8.6

Comfort

7.9

Overall

7.9

Food

7.5

Boarding

8.2

Reviews

1 / 20
2.0
Mediocre

Milad,Feb 2026

LIR - YYZ

Not helpful staff at Liberia airport at the check-in counter. Extremely poor skill people and not willing to help the passenger.
Air Canada
7.1
Good
10,701 reviews
Porter Airlines
7.9
Good
414 reviews
Check prices

Entertainment

6.9

Crew

8.6

Comfort

7.9

Overall

7.9

Food

7.5

Boarding

8.2

Reviews

1 / 20
2.0
Mediocre

Milad,Feb 2026

LIR - YYZ

Not helpful staff at Liberia airport at the check-in counter. Extremely poor skill people and not willing to help the passenger.
Lufthansa
6.8
Okay
7,777 reviews
Porter Airlines
7.9
Good
414 reviews
Check prices

Entertainment

6.9

Crew

8.6

Comfort

7.9

Overall

7.9

Food

7.5

Boarding

8.2

Reviews

1 / 20
2.0
Mediocre

Milad,Feb 2026

LIR - YYZ

Not helpful staff at Liberia airport at the check-in counter. Extremely poor skill people and not willing to help the passenger.
British Airways
6.7
Okay
7,724 reviews
Porter Airlines
7.9
Good
414 reviews
Check prices

Entertainment

6.9

Crew

8.6

Comfort

7.9

Overall

7.9

Food

7.5

Boarding

8.2

Reviews

1 / 20
2.0
Mediocre

Milad,Feb 2026

LIR - YYZ

Not helpful staff at Liberia airport at the check-in counter. Extremely poor skill people and not willing to help the passenger.

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?

    For as low as C$ 742, Air Transat can have you in London from Montreal Pierre Elliott Trudeau Intl Airport in 6h 45m. The distance from Montreal Pierre Elliott Trudeau Intl Airport to London is about 5243 km. This flight may include one or multiple stops.

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

    Our cheapest airline available from Montreal Pierre Elliott Trudeau Intl Airport to London is Air Transat. Our recent data shows that you can find tickets from as low as C$ 647 on this airline. Additional options worth looking into are TAP AIR PORTUGAL and Porter Airlines, starting at C$ 671 and C$ 721 round-trip. These flights start at 30% lower than the current average price 3 months from now.

  • What are the cheapest airlines to fly from Montreal Pierre Elliott Trudeau Intl Airport to London one-way?

    C$ 331 is the cheapest one-way deal found within the past few days, from Air Transat. You may also be able to find cheap deals on TAP AIR PORTUGAL and Lufthansa, with prices starting from C$ 386 and C$ 429, respectively.

  • 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 City as they are the most popular.

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

    Consider American Airlines (48%), Aer Lingus (48%) or Finnair (48%) when booking your flight. These represent the most reliable airlines when flying from Montreal Pierre Elliott Trudeau Intl Airport to London.

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

    Looking at all options, your cheapest flight can be booked for C$ 661. While the most popular route (Montreal Pierre Elliott Trudeau Intl - London Heathrow) can be booked for C$ 672 on average, our data indicates C$ 1,847 when flying from Montreal Pierre Elliott Trudeau Intl Airport to London.

  • 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 vacation 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 C$ 468). Flying from Montreal Pierre Elliott Trudeau Intl Airport to London in July is currently the most expensive (average of C$ 878). 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
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Slough
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Fly from Pierre Elliott Trudeau Intl to London on these airlines

Choose from the following airlines for your flight from Pierre Elliott Trudeau Intl to London. Flights are based on user searches made on Cheapflights and were last updated on 10 February 2026.
Air Transat flights from Montreal Pierre Elliott Trudeau Intl to London
Air Canada flights from Montreal Pierre Elliott Trudeau Intl to London
British Airways flights from Montreal Pierre Elliott Trudeau Intl to London

Top 10 airlines flying from Pierre Elliott Trudeau Intl to London

Discover the top 10 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 629,999 searches. Data last updated 10 February 2026.
AirlineCheapestAverageFlexibilityOn-time
Air TransatCheapestC$ 647AverageC$ 960FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
TAP AIR PORTUGALCheapestC$ 671AverageC$ 728FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
Porter AirlinesCheapestC$ 721AverageC$ 964FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
British AirwaysCheapestC$ 723AverageC$ 1,016FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Air CanadaCheapestC$ 742AverageC$ 1,007FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
LufthansaCheapestC$ 747AverageC$ 992FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Air FranceCheapestC$ 754AverageC$ 1,187FlexibilityNo cancel feeOn-time77%
Search Air France flights
American AirlinesCheapestC$ 766AverageC$ 1,027FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
Virgin AtlanticCheapestC$ 781AverageC$ 1,076FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
FinnairCheapestC$ 928AverageC$ 1,096FlexibilityNo cancel feeOn-time76%
Search Finnair flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers 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?

When you search for this flight from Pierre Elliott Trudeau Intl to London, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

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

Cheapflights helps you find that perfect flight to London from Pierre Elliott Trudeau Intl by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

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

Cheapflights does show flights with no change fees to all users. To see these options for flights from Pierre Elliott Trudeau Intl to London, users can toggle the no change fees filter when performing a flight search.

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

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to London from Pierre Elliott Trudeau Intl today and book when prices fit your budget.

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