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Cheap flights from Montreal Pierre Elliott Trudeau Intl Airport to London from C$ 347

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 4/10. Fares are subject to change and may not be available on all flights or dates of travel.
YUL — LON
19 Aug — 26 Aug1
1 adult

Cheapflights Tip: The best prices from Montreal Pierre Elliott Trudeau Intl to London are usually found in May or October, booked 57 days in advance, depart on a Sunday or Thursday and return on a Wednesday

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 August 2025.

Round-trip from

C$ 735

One-way from

C$ 347

Popular in

December

Cheapest in

May

Average price

C$ 1,041

Good round-trip deal

C$ 762 or less

Good one-way deal

C$ 307 or less
Air Transat
  • Air Transat
  • 20/9-25/9
  • Nonstop
  • 14h 25m total
  • Montreal to London
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Air Transat
  • Air Transat
  • 4/10
  • 1 total stop
  • 11h 45m total
  • Montreal to London
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Highest demand for flights based on searches. 5% potential increase in price (C$ 81 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease (C$ 39 potential savings vs. average RT price).
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Average for round-trip flights in August 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

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 August 2025.

Sat 20/910:05 p.m.YUL - LGW
Nonstop6h 45mAir Transat
Thu 25/911:35 a.m.LGW - YUL
Nonstop7h 40mAir Transat
Deal found 12/8C$ 735
Wed 24/96:55 p.m.YUL - LHR
Nonstop6h 35mMultiple Airlines
Tue 30/97:30 p.m.LHR - YUL
1 stop23h 20mMultiple Airlines
Deal found 12/8C$ 735
Mon 15/910:05 p.m.YUL - LGW
Nonstop6h 45mAir Transat
Tue 23/912:40 p.m.LGW - YUL
1 stop11h 27mAir Transat
Deal found 12/8C$ 736
Sun 14/96:55 p.m.YUL - LHR
Nonstop6h 35mAir Canada
Sun 28/96:00 a.m.LHR - YUL
1 stop12h 50mAir Canada
Deal found 12/8C$ 736
Sun 14/94:00 p.m.YUL - LGW
1 stop13h 45mAir Transat
Tue 23/912:40 p.m.LGW - YUL
1 stop11h 40mAir Transat
Deal found 12/8C$ 738
Sun 14/96:55 p.m.YUL - LHR
Nonstop6h 35mAir Canada
Tue 23/93:50 p.m.LHR - YUL
1 stop10h 50mAir Canada
Deal found 12/8C$ 738
Mon 15/910:00 a.m.YUL - LGW
1 stop19h 45mMultiple Airlines
Tue 23/912:40 p.m.LGW - YUL
1 stop11h 40mMultiple Airlines
Deal found 12/8C$ 739
Fri 17/103:30 p.m.YUL - LHR
1 stop10h 05mAir Canada
Wed 12/119:00 a.m.LHR - YUL
1 stop11h 10mAir Canada
Deal found 12/8C$ 739
Sat 27/96:00 p.m.YUL - LGW
1 stop11h 45mAir Transat
Sun 5/1011:35 a.m.LGW - YUL
Nonstop7h 40mAir Transat
Deal found 13/8C$ 740
Wed 1/106:55 p.m.YUL - LHR
Nonstop6h 35mAir Canada
Sun 12/106:50 a.m.LHR - YUL
1 stop9h 45mAir Canada
Deal found 12/8C$ 740
Sat 20/910:05 p.m.YUL - LGW
Nonstop6h 45mAir Transat
Fri 3/1012:40 p.m.LGW - YUL
1 stop11h 40mAir Transat
Deal found 12/8C$ 742
Wed 1/109:55 p.m.YUL - LHR
Nonstop6h 40mAir Canada
Sun 5/106:50 a.m.LHR - YUL
1 stop9h 45mAir Canada
Deal found 12/8C$ 742

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 August 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

Sun 19/10

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

1 stop23h 00m

London Gatwick

Wed 29/10

11:40 a.m.-12:35 a.m.

1 stop16h 55m

C$ 735

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Mon 29/9

9:55 p.m.-9:35 a.m.

Nonstop6h 40m

London Heathrow

Mon 6/10

6:00 a.m.-1:50 p.m.

1 stop12h 50m

C$ 735

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Fri 17/10

9:55 p.m.-9:35 a.m.

Nonstop6h 40m

London Heathrow

Sun 26/10

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

1 stop15h 40m

C$ 735

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Sun 14/9

6:55 p.m.-6:30 a.m.

Nonstop6h 35m

London Heathrow

Thu 2/10

6:00 a.m.-1:50 p.m.

1 stop12h 50m

C$ 735

MontrealLondon

YUL - LHR

YULLHR

Montreal Pierre Elliott Trudeau Intl

Tue 7/10

9:55 p.m.-9:35 a.m.

Nonstop6h 40m

London Heathrow

Wed 29/10

11:10 a.m.-7:20 p.m.

1 stop12h 10m

C$ 735

MontrealLondon

YUL - LGW

YULLGW

Montreal Pierre Elliott Trudeau Intl

Fri 19/9

4:00 p.m.-7:55 a.m.

1 stop10h 55m

London Gatwick

Thu 25/9

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

Nonstop7h 40m

C$ 736

MontrealLondon

YUL - LGW

YULLGW

Montreal Pierre Elliott Trudeau Intl

Sat 11/10

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

Nonstop6h 45m

London Gatwick

Mon 20/10

12:40 p.m.-9:17 p.m.

1 stop13h 37m

C$ 742

MontrealLondon

YUL - LGW

YULLGW

Montreal Pierre Elliott Trudeau Intl

Wed 24/9

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

Nonstop6h 45m

London Gatwick

Wed 1/10

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

1 stop11h 40m

C$ 742

MontrealLondon

YUL - LGW

YULLGW

Montreal Pierre Elliott Trudeau Intl

Sat 20/9

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

Nonstop6h 45m

London Gatwick

Fri 3/10

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

1 stop11h 40m

C$ 742

MontrealLondon

YUL - LGW

YULLGW

Montreal Pierre Elliott Trudeau Intl

Wed 24/9

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

Nonstop6h 45m

London Gatwick

Fri 3/10

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

1 stop11h 40m

C$ 742

Flights are sorted by cheapest round-trip flights first.

Deals found on 13/8

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 8 August 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 57 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, January is the cheapest month in which you can book a flight from Montreal Pierre Elliott Trudeau Intl Airport to London (average of C$ 560). Flying from Montreal Pierre Elliott Trudeau Intl Airport to London in July is currently the most expensive (average of C$ 856). 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 August 2025.

Unlike in the evening, when flights are generally more expensive, you can save up to 33% on flights from Montreal Pierre Elliott Trudeau Intl Airport to London by exploring options for tickets at noon.

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 Wednesday at noon when fares are most often at their lowest. Tuesday evenings 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 August 2025.

The most flights from YUL to LON are scheduled on a Wednesday (20 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (12 on average).

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 57% 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$ 661.

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 Amsterdam (AMS) offer the fastest connection on this route, with an average layover time of 2h 08m.

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 August 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
332 reviews
Check prices

Comfort

8.0

Entertainment

7.0

Boarding

8.2

Food

7.6

Overall

8.0

Crew

8.7

Reviews

1 / 20
8.0
Excellent

Anonymous,Jul 2025

LIS - YYZ

Everything was on time and easy. Crew were nice on flights and helpful. International flight, so long and typically uncomfortable but not more than most. Food and drink service were below average but you get what you pay for. Overall, good experience
Porter Airlines
8.0
Very good
332 reviews
Porter Airlines
8.0
Very good
332 reviews
Check prices

Comfort

8.0

Entertainment

7.0

Boarding

8.2

Food

7.6

Overall

8.0

Crew

8.7

Reviews

1 / 20
8.0
Excellent

Anonymous,Jul 2025

LIS - YYZ

Everything was on time and easy. Crew were nice on flights and helpful. International flight, so long and typically uncomfortable but not more than most. Food and drink service were below average but you get what you pay for. Overall, good experience
Air Transat
7.7
Good
427 reviews
Porter Airlines
8.0
Very good
332 reviews
Check prices

Comfort

8.0

Entertainment

7.0

Boarding

8.2

Food

7.6

Overall

8.0

Crew

8.7

Reviews

1 / 20
8.0
Excellent

Anonymous,Jul 2025

LIS - YYZ

Everything was on time and easy. Crew were nice on flights and helpful. International flight, so long and typically uncomfortable but not more than most. Food and drink service were below average but you get what you pay for. Overall, good experience
Air Canada
7.1
Good
9,956 reviews
Porter Airlines
8.0
Very good
332 reviews
Check prices

Comfort

8.0

Entertainment

7.0

Boarding

8.2

Food

7.6

Overall

8.0

Crew

8.7

Reviews

1 / 20
8.0
Excellent

Anonymous,Jul 2025

LIS - YYZ

Everything was on time and easy. Crew were nice on flights and helpful. International flight, so long and typically uncomfortable but not more than most. Food and drink service were below average but you get what you pay for. Overall, good experience
Lufthansa
6.8
Okay
7,321 reviews
Porter Airlines
8.0
Very good
332 reviews
Check prices

Comfort

8.0

Entertainment

7.0

Boarding

8.2

Food

7.6

Overall

8.0

Crew

8.7

Reviews

1 / 20
8.0
Excellent

Anonymous,Jul 2025

LIS - YYZ

Everything was on time and easy. Crew were nice on flights and helpful. International flight, so long and typically uncomfortable but not more than most. Food and drink service were below average but you get what you pay for. Overall, good experience
British Airways
6.7
Okay
7,267 reviews
Porter Airlines
8.0
Very good
332 reviews
Check prices

Comfort

8.0

Entertainment

7.0

Boarding

8.2

Food

7.6

Overall

8.0

Crew

8.7

Reviews

1 / 20
8.0
Excellent

Anonymous,Jul 2025

LIS - YYZ

Everything was on time and easy. Crew were nice on flights and helpful. International flight, so long and typically uncomfortable but not more than most. Food and drink service were below average but you get what you pay for. Overall, good experience

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.

  • 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 TAP AIR PORTUGAL. Our recent data shows that you can find tickets from as low as C$ 602 on this airline. Additional options worth looking into are Air Transat and Porter Airlines, starting at C$ 654 and C$ 723 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 Austrian Airlines (87%), United Airlines (87%) or Lufthansa (87%) 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$ 435. While the most popular route (Montreal Pierre Elliott Trudeau Intl - London Heathrow) can be booked for C$ 676 on average our data indicates C$ 2,269 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, January is the cheapest month in which you can book a flight from Montreal Pierre Elliott Trudeau Intl Airport to London (average of C$ 560). Flying from Montreal Pierre Elliott Trudeau Intl Airport to London in July is currently the most expensive (average of C$ 856). 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
Brentford
Sutton
Hounslow
Slough
Marlow
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Southall

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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 August 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 14 August 2025.
AirlineCheapestAverageFlexibilityOn-time
TAP AIR PORTUGALCheapestC$ 602AverageC$ 679FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
Air TransatCheapestC$ 654AverageC$ 977FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
Porter AirlinesCheapestC$ 723AverageC$ 888FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
Air CanadaCheapestC$ 746AverageC$ 994FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
LufthansaCheapestC$ 759AverageC$ 999FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Virgin AtlanticCheapestC$ 767AverageC$ 862FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
British AirwaysCheapestC$ 785AverageC$ 1,025FlexibilityNo cancel feeOn-time70%
Search British Airways flights
KLMCheapestC$ 802AverageC$ 1,032FlexibilityNo cancel feeOn-time75%
Search KLM flights
Air FranceCheapestC$ 815AverageC$ 911FlexibilityNo cancel feeOn-time77%
Search Air France flights
American AirlinesCheapestC$ 851AverageC$ 1,103FlexibilityNo cancel feeOn-time71%
Search American Airlines 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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