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Cheap flights from Montreal Pierre Elliott Trudeau Intl Airport to London from C$ 443

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 21/5. Fares are subject to change and may not be available on all flights or dates of travel.
YUL — LON
22 Apr — 29 Apr1
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 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 23 March 2026.

Mon 1/610:45 p.m.
YUL
-
LHR
1 stop19h 10m
TAP AIR PORTUGAL
Wed 10/611:20 a.m.
LHR
-
YUL
1 stop14h 25m
TAP AIR PORTUGAL
Deal found 21/3C$ 753
Wed 20/510:45 p.m.
YUL
-
LHR
1 stop19h 10m
TAP AIR PORTUGAL
Sun 7/64:35 p.m.
LHR
-
YUL
1 stop33h 35m
TAP AIR PORTUGAL
Deal found 20/3C$ 755
Mon 1/610:45 p.m.
YUL
-
LGW
1 stop11h 50m
TAP AIR PORTUGAL
Wed 10/610:35 a.m.
LGW
-
YUL
1 stop15h 10m
TAP AIR PORTUGAL
Deal found 21/3C$ 756
Sun 24/510:45 p.m.
YUL
-
LHR
1 stop30h 35m
TAP AIR PORTUGAL
Mon 1/61:45 p.m.
LHR
-
YUL
1 stop12h 25m
TAP AIR PORTUGAL
Deal found 18/3C$ 756
Sun 17/58:35 p.m.
YUL
-
STN
2 stops21h 50m
Multiple Airlines
Wed 27/58:30 a.m.
STN
-
YUL
2 stops21h 07m
Multiple Airlines
Deal found 21/3C$ 757
Mon 25/510:45 p.m.
YUL
-
LHR
1 stop18h 15m
TAP AIR PORTUGAL
Tue 2/67:50 p.m.
LHR
-
YUL
1 stop29h 55m
TAP AIR PORTUGAL
Deal found 22/3C$ 757
Fri 29/510:05 p.m.
YUL
-
LGW
Nonstop6h 45m
Air Transat
Fri 5/611:35 a.m.
LGW
-
YUL
Nonstop7h 40m
Air Transat
Deal found 22/3C$ 759
Thu 7/510:05 p.m.
YUL
-
LGW
Nonstop6h 45m
Air Transat
Wed 13/512:40 p.m.
LGW
-
YUL
1 stop11h 52m
Air Transat
Deal found 21/3C$ 760
Wed 3/610:45 p.m.
YUL
-
LHR
1 stop11h 50m
TAP AIR PORTUGAL
Sat 20/66:45 p.m.
LHR
-
YUL
1 stop31h 25m
TAP AIR PORTUGAL
Deal found 18/3C$ 760
Thu 28/510:05 p.m.
YUL
-
LGW
Nonstop6h 45m
Air Transat
Mon 1/611:35 a.m.
LGW
-
YUL
Nonstop7h 40m
Air Transat
Deal found 17/3C$ 761
Sat 23/510:05 p.m.
YUL
-
LGW
Nonstop6h 45m
Air Transat
Sat 30/512:40 p.m.
LGW
-
YUL
1 stop26h 22m
Air Transat
Deal found 21/3C$ 763
Mon 1/610:45 p.m.
YUL
-
LHR
1 stop18h 15m
TAP AIR PORTUGAL
Mon 8/61:45 p.m.
LHR
-
YUL
1 stop12h 25m
TAP AIR PORTUGAL
Deal found 21/3C$ 763

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 23 March 2026.

Round-trip from

C$ 753

One-way from

C$ 443

Popular in

December

Cheapest in

November

Average price

C$ 940

Good round-trip deal

C$ 688 or less

Good one-way deal

C$ 76 or less
TAP AIR PORTUGAL
  • TAP AIR PORTUGAL
  • 1/6-10/6
  • 2 total stops
  • 33h 35m total
  • Montreal to London
Search Deals
21/5
  • 21/5
  • 2 total stops
  • 32h 05m total
  • Montreal to London
Search Deals
Highest demand for flights based on searches. 3% potential increase in price (C$ 53 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (C$ 43 potential savings vs. average RT 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

 
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 23 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 round-trip

MontrealLondon

YUL - LGW

YULLGW

Montreal Pierre Elliott Trudeau Intl

Thu 21/5

4:15 p.m.-7:55 a.m.

1 stop10h 40m

London Gatwick

Wed 3/6

9:40 a.m.-5:02 p.m.

1 stop12h 22m

C$ 803

MontrealLondon

YUL - LTN

YULLTN

Montreal Pierre Elliott Trudeau Intl

Mon 1/6

9:30 p.m.-10:15 p.m.

1 stop19h 45m

London Luton

Wed 10/6

7:20 p.m.-11:35 a.m.

1 stop21h 15m

C$ 812

MontrealLondon

YUL - SEN

YULSEN

Montreal Pierre Elliott Trudeau Intl

Thu 21/5

6:50 p.m.-10:45 a.m.

1 stop10h 55m

London Southend

Thu 4/6

10:10 a.m.-11:35 a.m.

1 stop30h 25m

C$ 841

MontrealLondon

YUL - LGW

YULLGW

Montreal Pierre Elliott Trudeau Intl

Mon 1/6

10:45 p.m.-3:35 p.m.

1 stop11h 50m

London Gatwick

Mon 8/6

12:05 p.m.-9:10 p.m.

2 stops14h 05m

C$ 862

MontrealLondon

YUL - LTN

YULLTN

Montreal Pierre Elliott Trudeau Intl

Thu 21/5

6:50 p.m.-11:55 a.m.

1 stop12h 05m

London Luton

Sun 31/5

7:00 p.m.-11:35 a.m.

1 stop21h 35m

C$ 866

MontrealLondon

YUL - LGW

YULLGW

Montreal Pierre Elliott Trudeau Intl

Mon 15/6

10:45 p.m.-3:35 p.m.

1 stop11h 50m

London Gatwick

Mon 22/6

12:05 p.m.-9:10 p.m.

2 stops14h 05m

C$ 892

MontrealLondon

YUL - LGW

YULLGW

Montreal Pierre Elliott Trudeau Intl

Mon 8/6

4:15 p.m.-7:55 a.m.

1 stop10h 40m

London Gatwick

Sat 13/6

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

Nonstop7h 40m

C$ 892

MontrealLondon

YUL - LTN

YULLTN

Montreal Pierre Elliott Trudeau Intl

Mon 18/5

9:30 p.m.-10:15 p.m.

1 stop19h 45m

London Luton

Wed 27/5

6:10 a.m.-2:00 p.m.

1 stop12h 50m

C$ 911

MontrealLondon

YUL - LGW

YULLGW

Montreal Pierre Elliott Trudeau Intl

Tue 9/6

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

Nonstop6h 45m

London Gatwick

Thu 11/6

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

1 stop11h 40m

C$ 937

MontrealLondon

YUL - LTN

YULLTN

Montreal Pierre Elliott Trudeau Intl

Tue 5/5

11:45 p.m.-9:45 p.m.

1 stop17h 00m

London Luton

Tue 12/5

7:00 a.m.-5:20 p.m.

1 stop15h 20m

C$ 942

Flights are sorted by cheapest round-trip flights first.

Deals found on 17/3

Showing 1-10 of 60 resultsSorted by cheapest first
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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 13 March 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$ 472). Flying from Montreal Pierre Elliott Trudeau Intl Airport to London in July is currently the most expensive (average of C$ 885). 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 23 March 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 23 March 2026.

The most flights from YUL to LON are scheduled on a Friday (13 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (11 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 48% 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$ 762.

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 Newark (EWR) have the shortest average one-way travel time for 1-stop routes: 9h 52m.

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 20% of weekly flights between Montreal and London have experienced delays in the past year, with the average delay time being 151 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 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 23 March 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
8.0
Very good
427 reviews
Check prices

Overall

8.0

Crew

8.6

Comfort

8.0

Food

7.6

Boarding

8.2

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

John,Mar 2026

YYZ - PVR

I'm 6ft 4in. The seats don't have enough room. But was a good flight.
Porter Airlines
8.0
Very good
427 reviews
Porter Airlines
8.0
Very good
427 reviews
Check prices

Overall

8.0

Crew

8.6

Comfort

8.0

Food

7.6

Boarding

8.2

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

John,Mar 2026

YYZ - PVR

I'm 6ft 4in. The seats don't have enough room. But was a good flight.
Air Transat
7.7
Good
521 reviews
Porter Airlines
8.0
Very good
427 reviews
Check prices

Overall

8.0

Crew

8.6

Comfort

8.0

Food

7.6

Boarding

8.2

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

John,Mar 2026

YYZ - PVR

I'm 6ft 4in. The seats don't have enough room. But was a good flight.
Air Canada
7.1
Good
10,835 reviews
Porter Airlines
8.0
Very good
427 reviews
Check prices

Overall

8.0

Crew

8.6

Comfort

8.0

Food

7.6

Boarding

8.2

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

John,Mar 2026

YYZ - PVR

I'm 6ft 4in. The seats don't have enough room. But was a good flight.
Lufthansa
6.8
Okay
7,860 reviews
Porter Airlines
8.0
Very good
427 reviews
Check prices

Overall

8.0

Crew

8.6

Comfort

8.0

Food

7.6

Boarding

8.2

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

John,Mar 2026

YYZ - PVR

I'm 6ft 4in. The seats don't have enough room. But was a good flight.
British Airways
6.7
Okay
7,813 reviews
Porter Airlines
8.0
Very good
427 reviews
Check prices

Overall

8.0

Crew

8.6

Comfort

8.0

Food

7.6

Boarding

8.2

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

John,Mar 2026

YYZ - PVR

I'm 6ft 4in. The seats don't have enough room. But was a good flight.

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$ 1,044, Air Transat 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 Transat. Our recent data shows that you can find tickets from as low as C$ 652 on this airline. Additional options worth looking into are TAP AIR PORTUGAL and British Airways, starting at C$ 676 and C$ 727 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$ 324 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$ 389 and C$ 433, 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 Stansted as they are the most popular.

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

    Consider Aegean Airlines (81%), Egyptair (75%) or Thai Airways (75%) 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$ 857. While the most popular route (Montreal Pierre Elliott Trudeau Intl - London Heathrow) can be booked for C$ 709 on average, our data indicates C$ 1,407 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$ 472). Flying from Montreal Pierre Elliott Trudeau Intl Airport to London in July is currently the most expensive (average of C$ 885). 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
Gatwick
Twickenham
Bromley
Sutton
Slough
Marlow
Cobham
Romford
Bedford
Watford
Luton
High Wycombe
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 23 March 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 9 airlines flying from Pierre Elliott Trudeau Intl to London

Discover the top 9 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 23 March 2026.
AirlineCheapestAverageFlexibilityOn-time
Air TransatCheapestC$ 652AverageC$ 956FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
TAP AIR PORTUGALCheapestC$ 676AverageC$ 733FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
British AirwaysCheapestC$ 727AverageC$ 1,016FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Porter AirlinesCheapestC$ 728AverageC$ 972FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
Air CanadaCheapestC$ 747AverageC$ 1,024FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
LufthansaCheapestC$ 752AverageC$ 1,018FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Air FranceCheapestC$ 760AverageC$ 1,098FlexibilityNo cancel feeOn-time77%
Search Air France flights
American AirlinesCheapestC$ 772AverageC$ 966FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
FinnairCheapestC$ 935AverageC$ 1,125FlexibilityNo 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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