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Cheap flights from Montreal Pierre Elliott Trudeau Intl Airport to London from C$ 420

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 9/2. Fares are subject to change and may not be available on all flights or dates of travel.
YUL — LON
3 Jan — 10 Jan1
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 October, booked 34 days in advance, depart on a Sunday or Saturday and return on a Saturday

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 4 December 2025.

Sat 6/125:10 p.m.YUL - LHR
1 stop10h 20mMultiple Airlines
Fri 12/1212:00 p.m.LHR - YUL
1 stop9h 50mMultiple Airlines
Deal found 4/12C$ 833
Wed 3/127:30 p.m.YUL - LHR
Nonstop6h 40mLufthansa
Wed 10/121:25 p.m.LHR - YUL
Nonstop7h 45mLufthansa
Deal found 2/12C$ 835
Fri 5/127:30 p.m.YUL - LHR
Nonstop6h 40mMultiple Airlines
Sun 14/121:25 p.m.LHR - YUL
Nonstop7h 45mMultiple Airlines
Deal found 2/12C$ 839
Thu 4/127:30 p.m.YUL - LHR
Nonstop6h 40mMultiple Airlines
Thu 11/121:25 p.m.LHR - YUL
Nonstop7h 45mMultiple Airlines
Deal found 3/12C$ 840
Sun 7/127:30 p.m.YUL - LHR
Nonstop6h 40mLufthansa
Thu 11/121:25 p.m.LHR - YUL
Nonstop7h 45mLufthansa
Deal found 3/12C$ 842
Sun 7/121:30 p.m.YUL - LHR
2 stops14h 50mAir Canada
Sun 14/129:00 a.m.LHR - YUL
1 stop13h 35mAir Canada
Deal found 2/12C$ 843
Sun 7/128:30 a.m.YUL - LHR
2 stops19h 50mAir Canada
Thu 11/129:00 a.m.LHR - YUL
2 stops16h 50mAir Canada
Deal found 4/12C$ 844
Thu 4/124:45 p.m.YUL - LCY
1 stop11h 00mSWISS
Wed 10/129:20 a.m.LCY - YUL
1 stop10h 50mSWISS
Deal found 2/12C$ 850
Thu 4/128:50 a.m.YUL - LHR
2 stops16h 40mAir Canada
Sun 14/129:00 a.m.LHR - YUL
2 stops16h 50mAir Canada
Deal found 2/12C$ 851
Wed 3/1210:30 p.m.YUL - LHR
1 stop27h 00mAir Canada
Wed 10/121:25 p.m.LHR - YUL
Nonstop7h 45mAir Canada
Deal found 3/12C$ 853
Mon 8/125:10 p.m.YUL - LHR
1 stop10h 20mAir Canada
Fri 12/1212:00 p.m.LHR - YUL
2 stops18h 53mAir Canada
Deal found 2/12C$ 861
Wed 3/124:45 p.m.YUL - LCY
1 stop10h 55mSWISS
Wed 10/129:20 a.m.LCY - YUL
1 stop10h 50mSWISS
Deal found 2/12C$ 876

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 4 December 2025.

Round-trip from

C$ 833

One-way from

C$ 423

Popular in

December

Cheapest in

May

Average price

C$ 1,294

Good round-trip deal

C$ 845 or less

Good one-way deal

C$ 588 or less
Air Transat
  • Air Transat
  • 4/4-13/5
  • 2 total stops
  • 24h 30m total
  • Montreal to London
Search Deals
30/1
  • 30/1
  • 2 total stops
  • 20h 25m total
  • Montreal to London
Search Deals
Highest demand for flights based on searches. 5% potential increase in price (C$ 83 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 December 2025
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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 4 December 2025.
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

Wed 15/4

5:25 p.m.-10:45 a.m.

1 stop12h 20m

London Gatwick

Sun 3/5

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

Nonstop7h 40m

C$ 839

MontrealLondon

YUL - LGW

YULLGW

Montreal Pierre Elliott Trudeau Intl

Mon 13/4

5:25 p.m.-10:45 a.m.

1 stop12h 20m

London Gatwick

Sun 3/5

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

Nonstop7h 40m

C$ 839

MontrealLondon

YUL - LGW

YULLGW

Montreal Pierre Elliott Trudeau Intl

Thu 7/5

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

Nonstop6h 45m

London Gatwick

Fri 22/5

12:40 p.m.-9:02 a.m.

1 stop25h 22m

C$ 839

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Fri 6/3

9:29 a.m.-6:50 a.m.

2 stops16h 21m

London Heathrow

Wed 11/3

6:30 a.m.-6:20 p.m.

1 stop15h 50m

C$ 840

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Sun 8/3

4:45 p.m.-8:45 a.m.

1 stop12h 00m

London Heathrow

Wed 18/3

8:40 a.m.-6:20 p.m.

1 stop13h 40m

C$ 842

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Tue 10/3

8:05 p.m.-1:45 p.m.

1 stop13h 40m

London Heathrow

Tue 17/3

8:55 a.m.-4:20 p.m.

1 stop11h 25m

C$ 846

MontrealLondon

YUL - LGW

YULLGW

Montreal Pierre Elliott Trudeau Intl

Thu 2/4

7:20 p.m.-10:45 a.m.

1 stop10h 25m

London Gatwick

Wed 13/5

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

Nonstop7h 40m

C$ 846

MontrealLondon

YUL - LGW

YULLGW

Montreal Pierre Elliott Trudeau Intl

Fri 3/4

7:20 p.m.-10:45 a.m.

1 stop10h 25m

London Gatwick

Sun 10/5

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

Nonstop7h 40m

C$ 846

MontrealLondon

YUL - LGW

YULLGW

Montreal Pierre Elliott Trudeau Intl

Sun 5/4

7:20 p.m.-10:45 a.m.

1 stop10h 25m

London Gatwick

Wed 13/5

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

Nonstop7h 40m

C$ 846

MontrealLondon

YUL - LGW

YULLGW

Montreal Pierre Elliott Trudeau Intl

Fri 24/4

6:20 p.m.-10:45 a.m.

1 stop11h 25m

London Gatwick

Fri 1/5

12:40 p.m.-9:02 a.m.

1 stop25h 22m

C$ 847

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/12

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 28 November 2025.

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 34 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$ 480). Flying from Montreal Pierre Elliott Trudeau Intl Airport to London in July is currently the most expensive (average of C$ 900). 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 4 December 2025.

Unlike in the evening, when flights are generally more expensive, you can save up to 13% on flights from Montreal Pierre Elliott Trudeau Intl Airport to London by exploring options for tickets in the morning.

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

Use this chart to determine the cheapest time to fly round-trip from Pierre Elliott Trudeau Intl to London. Price data was last updated on 16 December 2024.

Travelers seeking maximum savings on their Montreal Pierre Elliott Trudeau Intl Airport to London flight should consider departing on Sunday mornings when fares are most often at their lowest. Tuesday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

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 4 December 2025.

The most flights from YUL to LON are scheduled on a Monday (12 on average). You will have fewer flight options on Friday, which is when the least amount of flights are scheduled (6 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 55% 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.

Lisbon (LIS) is the most affordable 1-stop option, with an average round-trip price of C$ 716.

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 18% of weekly flights between Montreal and London have experienced delays in the past year, with the average delay time being 161 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 Monday 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 8% 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 4 December 2025.
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
8.0
Very good
395 reviews
Check prices

Comfort

8.0

Overall

8.0

Crew

8.6

Boarding

8.2

Food

7.6

Entertainment

7.0

Reviews

1 / 20
8.0
Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out
Porter Airlines
8.0
Very good
395 reviews
Porter Airlines
8.0
Very good
395 reviews
Check prices

Comfort

8.0

Overall

8.0

Crew

8.6

Boarding

8.2

Food

7.6

Entertainment

7.0

Reviews

1 / 20
8.0
Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out
Air Transat
7.8
Good
480 reviews
Porter Airlines
8.0
Very good
395 reviews
Check prices

Comfort

8.0

Overall

8.0

Crew

8.6

Boarding

8.2

Food

7.6

Entertainment

7.0

Reviews

1 / 20
8.0
Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out
Air Canada
7.1
Good
10,500 reviews
Porter Airlines
8.0
Very good
395 reviews
Check prices

Comfort

8.0

Overall

8.0

Crew

8.6

Boarding

8.2

Food

7.6

Entertainment

7.0

Reviews

1 / 20
8.0
Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out
Lufthansa
6.8
Okay
7,612 reviews
Porter Airlines
8.0
Very good
395 reviews
Check prices

Comfort

8.0

Overall

8.0

Crew

8.6

Boarding

8.2

Food

7.6

Entertainment

7.0

Reviews

1 / 20
8.0
Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out
British Airways
6.7
Okay
7,562 reviews
Porter Airlines
8.0
Very good
395 reviews
Check prices

Comfort

8.0

Overall

8.0

Crew

8.6

Boarding

8.2

Food

7.6

Entertainment

7.0

Reviews

1 / 20
8.0
Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out

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$ 842, Air Transat can have you in London from Montreal Pierre Elliott Trudeau Intl Airport in 12h. The distance from Montreal Pierre Elliott Trudeau Intl Airport to London is about 5213 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 France. Our recent data shows that you can find tickets from as low as C$ 615 on this airline. Additional options worth looking into are TAP AIR PORTUGAL and Air Transat, starting at C$ 638 and C$ 639 round-trip. These flights start at 36% 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$ 339 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 Porter Airlines and TAP AIR PORTUGAL, with prices starting from C$ 364 and C$ 395, 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 (78%), Aer Lingus (78%) or Finnair (78%) 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$ 626. While the most popular route (Montreal Pierre Elliott Trudeau Intl - London Heathrow) can be booked for C$ 706 on average, our data indicates C$ 1,998 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$ 480). Flying from Montreal Pierre Elliott Trudeau Intl Airport to London in July is currently the most expensive (average of C$ 900). 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
Sutton
Twickenham
Slough
Marlow
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Romford
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Hounslow

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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 4 December 2025.
Air Canada flights from Montreal Pierre Elliott Trudeau Intl to London
Air Transat 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 4 December 2025.
AirlineCheapestAverageFlexibilityOn-time
Air FranceCheapestC$ 615AverageC$ 1,113FlexibilityNo cancel feeOn-time77%
Search Air France flights
TAP AIR PORTUGALCheapestC$ 638AverageC$ 724FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
Air TransatCheapestC$ 639AverageC$ 970FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
Porter AirlinesCheapestC$ 739AverageC$ 987FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
LufthansaCheapestC$ 766AverageC$ 1,009FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Air CanadaCheapestC$ 766AverageC$ 1,022FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
British AirwaysCheapestC$ 766AverageC$ 1,014FlexibilityNo cancel feeOn-time70%
Search British Airways flights
American AirlinesCheapestC$ 788AverageC$ 1,071FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
Virgin AtlanticCheapestC$ 801AverageC$ 1,100FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
FinnairCheapestC$ 871AverageC$ 1,025FlexibilityNo 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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