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Cheap flights from Montreal Pierre Elliott Trudeau Intl Airport to London from C$ 413

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 28/11. Fares are subject to change and may not be available on all flights or dates of travel.
YUL — LON
13 Nov — 20 Nov1
1 adult
1 adult, Economy

Cheapflights Tip: The best prices from Montreal Pierre Elliott Trudeau Intl to London are usually found in May or October, booked 85 days in advance, depart on a Sunday or Saturday and return on a Saturday

Cheap 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 14 October 2025.

Round-trip from

C$ 770

One-way from

C$ 413

Popular in

December

Cheapest in

May

Average price

C$ 888

Good round-trip deal

C$ 812 or less

Good one-way deal

C$ 438 or less
Porter Airlines
  • Porter Airlines
  • 18/11-1/12
  • 2 total stops
  • 33h 50m total
  • Montreal to London
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24/10
  • 24/10
  • 3 total stops
  • 43h 55m total
  • Montreal to London
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Highest demand for flights based on searches. 6% potential increase in price (C$ 100 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease (C$ 45 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Price to beat on a round-trip flight from Montreal Pierre Elliott Trudeau Intl to London (LON).
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Price to beat on a one-way flight from Montreal Pierre Elliott Trudeau Intl to London (LON).
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Find 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 14 October 2025.

Tue 18/1110:35 a.m.YUL - LGW
1 stop18h 10mPorter Airlines
Mon 1/1211:40 a.m.LGW - YUL
1 stop15h 40mPorter Airlines
Deal found 13/10C$ 770
Mon 8/122:30 p.m.YUL - LGW
1 stop14h 15mPorter Airlines
Wed 10/1211:40 a.m.LGW - YUL
1 stop15h 40mPorter Airlines
Deal found 13/10C$ 771
Wed 19/1110:35 a.m.YUL - LGW
1 stop18h 10mPorter Airlines
Mon 24/1111:40 a.m.LGW - YUL
1 stop15h 40mPorter Airlines
Deal found 13/10C$ 773
Sun 7/129:45 p.m.YUL - LHR
1 stop18h 50mTAP AIR PORTUGAL
Wed 24/128:15 a.m.LHR - YUL
1 stop17h 00mTAP AIR PORTUGAL
Deal found 12/10C$ 778
Fri 28/115:25 p.m.YUL - LGW
1 stop11h 20mAir Transat
Fri 5/1211:40 a.m.LGW - YUL
1 stop11h 45mAir Transat
Deal found 14/10C$ 780
Wed 26/119:45 p.m.YUL - LGW
2 stops31h 15mTAP AIR PORTUGAL
Wed 3/1210:40 a.m.LGW - YUL
1 stop14h 35mTAP AIR PORTUGAL
Deal found 12/10C$ 784
Wed 26/119:45 p.m.YUL - LHR
1 stop18h 50mTAP AIR PORTUGAL
Sun 7/126:00 a.m.LHR - YUL
1 stop19h 15mTAP AIR PORTUGAL
Deal found 13/10C$ 785
Fri 5/129:45 p.m.YUL - STN
2 stops21h 25mMultiple Airlines
Wed 10/125:55 a.m.STN - YUL
2 stops19h 20mMultiple Airlines
Deal found 11/10C$ 788
Sat 18/1010:05 p.m.YUL - LGW
Nonstop6h 45mAir Transat
Fri 28/1111:40 a.m.LGW - YUL
1 stop17h 55mAir Transat
Deal found 13/10C$ 788
Fri 14/119:40 p.m.YUL - LGW
1 stop16h 45mMultiple Airlines
Sun 23/118:30 a.m.LGW - YUL
1 stop16h 10mMultiple Airlines
Deal found 12/10C$ 789
Wed 26/119:45 p.m.YUL - STN
2 stops18h 10mMultiple Airlines
Wed 3/127:40 a.m.STN - YUL
2 stops17h 35mMultiple Airlines
Deal found 12/10C$ 791
Fri 14/119:40 p.m.YUL - LGW
1 stop16h 45mMultiple Airlines
Sun 30/118:30 a.m.LGW - YUL
1 stop16h 10mMultiple Airlines
Deal found 14/10C$ 791

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 14 October 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

Tue 27/1

10:15 a.m.-9:45 a.m.

1 stop18h 30m

London Gatwick

Wed 18/3

11:40 a.m.-9:20 a.m.

1 stop25h 40m

C$ 771

MontrealLondon

YUL - LGW

YULLGW

Montreal Pierre Elliott Trudeau Intl

Tue 27/1

10:15 a.m.-9:45 a.m.

1 stop18h 30m

London Gatwick

Tue 10/3

11:40 a.m.-4:55 p.m.

1 stop33h 15m

C$ 771

MontrealLondon

YUL - LGW

YULLGW

Montreal Pierre Elliott Trudeau Intl

Mon 30/3

10:15 a.m.-10:45 a.m.

1 stop19h 30m

London Gatwick

Mon 13/4

12:40 p.m.-10:10 p.m.

1 stop14h 30m

C$ 774

MontrealLondon

YUL - LGW

YULLGW

Montreal Pierre Elliott Trudeau Intl

Tue 31/3

10:15 a.m.-10:45 a.m.

1 stop19h 30m

London Gatwick

Mon 13/4

12:40 p.m.-12:35 a.m.

1 stop16h 55m

C$ 774

MontrealLondon

YUL - LGW

YULLGW

Montreal Pierre Elliott Trudeau Intl

Wed 1/4

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

1 stop10h 25m

London Gatwick

Mon 6/4

12:40 p.m.-12:35 a.m.

1 stop16h 55m

C$ 774

MontrealLondon

YUL - LGW

YULLGW

Montreal Pierre Elliott Trudeau Intl

Mon 8/12

2:30 p.m.-9:45 a.m.

1 stop14h 15m

London Gatwick

Thu 11/12

11:40 a.m.-6:25 p.m.

1 stop11h 45m

C$ 802

MontrealLondon

YUL - LGW

YULLGW

Montreal Pierre Elliott Trudeau Intl

Sat 6/12

3:55 p.m.-9:45 a.m.

1 stop12h 50m

London Gatwick

Wed 10/12

11:40 a.m.-6:25 p.m.

1 stop11h 45m

C$ 802

MontrealLondon

YUL - LGW

YULLGW

Montreal Pierre Elliott Trudeau Intl

Sun 7/12

2:30 p.m.-9:45 a.m.

1 stop14h 15m

London Gatwick

Mon 12/1

11:40 a.m.-6:25 p.m.

1 stop11h 45m

C$ 802

MontrealLondon

YUL - LGW

YULLGW

Montreal Pierre Elliott Trudeau Intl

Fri 27/2

6:20 p.m.-9:45 a.m.

1 stop10h 25m

London Gatwick

Sat 7/3

11:40 a.m.-9:05 a.m.

1 stop26h 25m

C$ 802

MontrealLondon

YUL - LGW

YULLGW

Montreal Pierre Elliott Trudeau Intl

Mon 10/11

5:25 p.m.-9:45 a.m.

1 stop11h 20m

London Gatwick

Sat 15/11

11:40 a.m.-6:25 p.m.

1 stop11h 45m

C$ 802

Flights are sorted by cheapest round-trip flights first.

Deals found on 13/10

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 10 October 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 85 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$ 483). Flying from Montreal Pierre Elliott Trudeau Intl Airport to London in July is currently the most expensive (average of C$ 906). 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 14 October 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 14 October 2025.

The most flights from YUL to LON are scheduled on a Saturday (20 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (15 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 59% 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$ 730.

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.

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 14 October 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
379 reviews
Check prices

Food

7.6

Entertainment

7.0

Boarding

8.2

Crew

8.6

Comfort

8.0

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Anonymous,Sep 2025

YYZ - OPO

Very disappointing, booked with Porter airlines and changed to Air Transit last minute. Old plane, cramped seating, even the aisle was the narrowest I’ve ever seen. Very uncomfortable flight. Full meal at 130 am and only a small piece of banana bread in the morning… should be opposite.
Porter Airlines
8.0
Very good
379 reviews
Porter Airlines
8.0
Very good
379 reviews
Check prices

Food

7.6

Entertainment

7.0

Boarding

8.2

Crew

8.6

Comfort

8.0

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Anonymous,Sep 2025

YYZ - OPO

Very disappointing, booked with Porter airlines and changed to Air Transit last minute. Old plane, cramped seating, even the aisle was the narrowest I’ve ever seen. Very uncomfortable flight. Full meal at 130 am and only a small piece of banana bread in the morning… should be opposite.
Air Transat
7.7
Good
456 reviews
Porter Airlines
8.0
Very good
379 reviews
Check prices

Food

7.6

Entertainment

7.0

Boarding

8.2

Crew

8.6

Comfort

8.0

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Anonymous,Sep 2025

YYZ - OPO

Very disappointing, booked with Porter airlines and changed to Air Transit last minute. Old plane, cramped seating, even the aisle was the narrowest I’ve ever seen. Very uncomfortable flight. Full meal at 130 am and only a small piece of banana bread in the morning… should be opposite.
Air Canada
7.1
Good
10,294 reviews
Porter Airlines
8.0
Very good
379 reviews
Check prices

Food

7.6

Entertainment

7.0

Boarding

8.2

Crew

8.6

Comfort

8.0

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Anonymous,Sep 2025

YYZ - OPO

Very disappointing, booked with Porter airlines and changed to Air Transit last minute. Old plane, cramped seating, even the aisle was the narrowest I’ve ever seen. Very uncomfortable flight. Full meal at 130 am and only a small piece of banana bread in the morning… should be opposite.
Lufthansa
6.8
Okay
7,485 reviews
Porter Airlines
8.0
Very good
379 reviews
Check prices

Food

7.6

Entertainment

7.0

Boarding

8.2

Crew

8.6

Comfort

8.0

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Anonymous,Sep 2025

YYZ - OPO

Very disappointing, booked with Porter airlines and changed to Air Transit last minute. Old plane, cramped seating, even the aisle was the narrowest I’ve ever seen. Very uncomfortable flight. Full meal at 130 am and only a small piece of banana bread in the morning… should be opposite.
British Airways
6.7
Okay
7,454 reviews
Porter Airlines
8.0
Very good
379 reviews
Check prices

Food

7.6

Entertainment

7.0

Boarding

8.2

Crew

8.6

Comfort

8.0

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Anonymous,Sep 2025

YYZ - OPO

Very disappointing, booked with Porter airlines and changed to Air Transit last minute. Old plane, cramped seating, even the aisle was the narrowest I’ve ever seen. Very uncomfortable flight. Full meal at 130 am and only a small piece of banana bread in the morning… should be opposite.

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$ 865, Porter Airlines can have you in London from Montreal Pierre Elliott Trudeau Intl Airport in 6h 50m. 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$ 619 on this airline. Additional options worth looking into are TAP AIR PORTUGAL and Air Transat, starting at C$ 642 and C$ 643 round-trip. These flights start at 37% lower than the current average price 3 months from now.

  • 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 (69%), Aer Lingus (69%) or Finnair (69%) 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$ 454. While the most popular route (Montreal Pierre Elliott Trudeau Intl - London Heathrow) can be booked for C$ 707 on average, our data indicates C$ 1,855 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$ 483). Flying from Montreal Pierre Elliott Trudeau Intl Airport to London in July is currently the most expensive (average of C$ 906). 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
Hounslow
Slough
Marlow
Milton Keynes
Romford
Watford
Bedford
Luton
Southall
Gatwick

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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 14 October 2025.
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 14 October 2025.
AirlineCheapestAverageFlexibilityOn-time
Air FranceCheapestC$ 619AverageC$ 975FlexibilityNo cancel feeOn-time77%
Search Air France flights
TAP AIR PORTUGALCheapestC$ 642AverageC$ 725FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
Air TransatCheapestC$ 643AverageC$ 996FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
Porter AirlinesCheapestC$ 739AverageC$ 917FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
Virgin AtlanticCheapestC$ 760AverageC$ 968FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
LufthansaCheapestC$ 771AverageC$ 1,017FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Air CanadaCheapestC$ 772AverageC$ 1,027FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
British AirwaysCheapestC$ 773AverageC$ 1,028FlexibilityNo cancel feeOn-time70%
Search British Airways flights
American AirlinesCheapestC$ 804AverageC$ 1,102FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
FinnairCheapestC$ 877AverageC$ 1,035FlexibilityNo cancel feeOn-time76%
Search Finnair flights

Fly with Cheapflights

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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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