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

C$ 397 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 Finnair, with prices starting from C$ 402 and C$ 560, respectively.

In terms of precipitation, rainfall in London ranges from 40.0 - 70.0 mm per month. January is typically the wettest month, when rainfall can reach 70.0 mm. July is typically the driest time to visit London when rainfall is around 40.0 mm.

If weather is an important factor for your trip to London, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 4.0 C).

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 City or Montreal Pierre Elliott Trudeau Intl - London Gatwick as they are the most popular.

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

Consider Egyptair (73%), MEA (65%) or Air Canada (64%) when booking your flight. These represent the most reliable airlines when flying from Montreal Pierre Elliott Trudeau Intl Airport to London.

What are the most popular airlines that fly from Montreal Pierre Elliott Trudeau Intl Airport to London?

The most popular airlines flying from Montreal Pierre Elliott Trudeau Intl Airport to London are Air Canada, British Airways and Lufthansa. Something to consider prior to booking your flight.

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.

C$ 392+ Cheap Flights from Montreal Pierre Elliott Trudeau Intl Airport to London

Cheapflights Tip: The best prices from Montreal Pierre Elliott Trudeau Intl to London are usually found in January or September, booked 23 days in advance, depart on a Monday or Saturday and return on a Tuesday

Cheap flight deals from Pierre Elliott Trudeau Intl to London

Enter your travel dates to find the best prices.

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Best

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Last-minute

One-way

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 September 2026.

Mon 12/106:35 p.m. -

1 stop13h 15m

Wed 28/108:00 p.m. -

2 stops21h 00m

Deal found 18/9C$ 825

Mon 12/1011:45 p.m. -

1 stop18h 15m

Wed 21/109:40 a.m. -

1 stop12h 40m

Deal found 18/9C$ 825

Thu 5/113:00 p.m. -

2 stops15h 20m

Sat 7/1111:05 a.m. -

1 stop29h 35m

Deal found 20/9C$ 825

Fri 13/118:30 p.m. -

1 stop12h 15m

Fri 20/115:20 p.m. -

1 stop25h 05m

Deal found 21/9C$ 826

Sun 22/119:45 p.m. -

1 stop11h 00m

Sun 29/117:15 a.m. -

1 stop17h 40m

Deal found 19/9C$ 826

Mon 2/116:50 p.m. -

3 stops17h 45m

Thu 12/116:00 a.m. -

1 stop14h 40m

Deal found 21/9C$ 827

Sun 15/119:45 p.m. -

1 stop14h 45m

Wed 25/118:15 a.m. -

1 stop16h 40m

Deal found 22/9C$ 827

Sat 26/910:05 p.m. -

Nonstop6h 45m

Wed 30/912:40 p.m. -

1 stop11h 40m

Deal found 20/9C$ 829

Mon 12/104:40 p.m. -

2 stops17h 05m

Wed 28/108:50 p.m. -

2 stops20h 10m

Deal found 18/9C$ 830

Wed 7/106:25 p.m. -

2 stops18h 40m

Wed 14/104:30 p.m. -

2 stops24h 30m

Deal found 21/9C$ 830

Sat 26/910:05 p.m. -

Nonstop6h 45m

Wed 14/1012:40 p.m. -

1 stop11h 40m

Deal found 21/9C$ 832

Wed 18/119:45 p.m. -

1 stop12h 45m

Wed 25/118:15 a.m. -

1 stop16h 40m

Deal found 21/9C$ 832

Best flights from Pierre Elliott Trudeau Intl to London
Discover carefully curated flight deals from Pierre Elliott Trudeau Intl to London that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 23 September 2026.

Fri 22/18:10 p.m. -

1 stop19h 15m

Thu 28/16:00 p.m. -

1 stop23h 40m

Deal found 18/9C$ 872

Sun 15/117:05 p.m. -

1 stop18h 15m

Fri 20/116:30 a.m. -

1 stop15h 45m

Deal found 18/9C$ 927

Tue 1/125:00 p.m. -

1 stop9h 55m

Fri 11/128:40 a.m. -

1 stop13h 35m

Deal found 19/9C$ 927

Thu 25/22:15 p.m. -

1 stop14h 30m

Mon 8/311:40 a.m. -

1 stop25h 45m

Deal found 19/9C$ 947

Thu 5/111:15 p.m. -

1 stop15h 05m

Tue 10/116:35 a.m. -

2 stops14h 30m

Deal found 19/9C$ 966

Wed 18/119:15 p.m. -

Nonstop6h 50m

Thu 26/114:45 p.m. -

Nonstop7h 30m

Deal found 22/9C$ 996

Wed 18/112:13 p.m. -

2 stops13h 57m

Mon 23/116:50 a.m. -

2 stops17h 58m

Deal found 22/9C$ 1,031

Tue 1/126:50 p.m. -

2 stops33h 35m

Fri 11/1210:40 a.m. -

1 stop14h 15m

Deal found 21/9C$ 1,075

Mon 9/115:10 p.m. -

2 stops14h 40m

Wed 18/119:15 a.m. -

1 stop10h 55m

Deal found 23/9C$ 1,191

Fri 16/106:50 p.m. -

1 stop9h 40m

Fri 23/108:25 a.m. -

1 stop13h 30m

Deal found 20/9C$ 1,283

Wed 11/117:55 p.m. -

1 stop33h 00m

Wed 18/1110:55 a.m. -

1 stop36h 05m

Deal found 22/9C$ 1,433

Wed 18/113:10 p.m. -

1 stop16h 20m

Mon 23/111:30 p.m. -

1 stop28h 40m

Deal found 22/9C$ 1,641

Sat 14/116:30 p.m. -

1 stop12h 20m

Sat 21/115:15 p.m. -

1 stop24h 25m

Deal found 21/9C$ 872

Fri 13/115:00 p.m. -

1 stop9h 55m

Thu 19/116:20 a.m. -

1 stop14h 00m

Deal found 18/9C$ 936

Sat 16/17:05 p.m. -

1 stop13h 40m

Fri 22/16:30 a.m. -

1 stop15h 45m

Deal found 22/9C$ 937

Fri 6/118:10 p.m. -

1 stop19h 15m

Fri 13/114:40 p.m. -

1 stop25h 00m

Deal found 22/9C$ 875

Tue 12/13:10 p.m. -

1 stop12h 20m

Fri 15/18:15 p.m. -

2 stops20h 25m

Deal found 18/9C$ 1,020

Mon 12/106:50 p.m. -

1 stop19h 55m

Wed 28/107:45 a.m. -

1 stop14h 30m

Deal found 18/9C$ 961

Sat 7/118:10 p.m. -

1 stop15h 45m

Sat 14/115:15 p.m. -

1 stop24h 25m

Deal found 23/9C$ 877

Sat 28/114:50 p.m. -

2 stops15h 55m

Fri 4/126:30 a.m. -

1 stop15h 45m

Deal found 22/9C$ 966

Wed 11/117:15 p.m. -

1 stop19h 20m

Tue 17/115:50 p.m. -

1 stop28h 25m

Deal found 21/9C$ 964

Thu 19/117:35 p.m. -

1 stop14h 05m

Tue 24/115:45 p.m. -

1 stop23h 55m

Deal found 19/9C$ 878

Tue 1/125:10 p.m. -

2 stops14h 40m

Thu 10/129:15 a.m. -

1 stop10h 55m

Deal found 22/9C$ 1,194

Sun 8/119:45 p.m. -

1 stop31h 05m

Sun 15/119:05 a.m. -

2 stops15h 50m

Deal found 18/9C$ 1,215

Wed 7/105:00 p.m. -

1 stop12h 45m

Wed 21/1011:35 a.m. -

Nonstop7h 40m

Deal found 20/9C$ 1,254

Thu 19/117:35 p.m. -

1 stop22h 05m

Tue 24/114:45 p.m. -

1 stop24h 55m

Deal found 19/9C$ 888

Fri 20/117:05 p.m. -

1 stop10h 25m

Fri 11/128:55 a.m. -

2 stops19h 38m

Deal found 19/9C$ 978

Mon 12/104:40 p.m. -

1 stop11h 00m

Wed 28/109:15 a.m. -

2 stops15h 10m

Deal found 18/9C$ 1,197

Sun 17/16:50 p.m. -

2 stops20h 45m

Thu 21/110:10 a.m. -

2 stops38h 45m

Deal found 21/9C$ 1,228

Wed 14/108:35 p.m. -

1 stop9h 10m

Sun 18/1011:35 a.m. -

Nonstop7h 40m

Deal found 22/9C$ 1,268

Find flight deals from Pierre Elliott Trudeau Intl to London

Round-trip from	C$ 825
One-way from	C$ 392
Popular in	December
Cheapest in	January
Average price	C$ 903
Good round-trip deal	C$ 819 or less
Good one-way deal	C$ 394 or less

12/10-28/10
3 total stops
34h 15m total
Montreal to London

Search Deals

21/10-31/12
1 total stop
14h 20m total
Montreal to London

Search Deals

Highest demand for flights based on searches. 3% potential increase in price (C$ 50 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease (C$ 47 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in September 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

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 Montreal Pierre Elliott Trudeau Intl - LTN London Luton

YULLTN

Montreal Pierre Elliott Trudeau Intl

Tue 20/10

6:50 p.m.-1:30 a.m.

1 stop25h 40m

London Luton

Wed 31/12

12:00 a.m.-6:00 p.m.

Nonstop0h 00m

C$ 400

MontrealLondon

YUL Montreal Pierre Elliott Trudeau Intl - LTN London Luton

YULLTN

Montreal Pierre Elliott Trudeau Intl

Mon 5/10

11:50 p.m.-12:05 a.m.

1 stop19h 15m

London Luton

Wed 31/12

12:00 a.m.-6:00 p.m.

Nonstop0h 00m

C$ 409

MontrealLondon

YUL Montreal Pierre Elliott Trudeau Intl - LGW London Gatwick

YULLGW

Montreal Pierre Elliott Trudeau Intl

Tue 29/9

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

Nonstop6h 45m

London Gatwick

Wed 31/12

12:00 a.m.-6:00 p.m.

Nonstop0h 00m

C$ 410

MontrealLondon

YUL Montreal Pierre Elliott Trudeau Intl - STN London Stansted

YULSTN

Montreal Pierre Elliott Trudeau Intl

Wed 21/10

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

2 stops43h 40m

London Stansted

Wed 31/12

12:00 a.m.-6:00 p.m.

Nonstop0h 00m

C$ 412

MontrealLondon

YUL Montreal Pierre Elliott Trudeau Intl - LGW London Gatwick

YULLGW

Montreal Pierre Elliott Trudeau Intl

Thu 22/10

11:45 p.m.-8:40 a.m.

1 stop27h 55m

London Gatwick

Wed 31/12

12:00 a.m.-6:00 p.m.

Nonstop0h 00m

C$ 414

MontrealLondon

YUL Montreal Pierre Elliott Trudeau Intl - STN London Stansted

YULSTN

Montreal Pierre Elliott Trudeau Intl

Mon 28/9

11:50 p.m.-12:55 a.m.

1 stop20h 05m

London Stansted

Wed 31/12

12:00 a.m.-6:00 p.m.

Nonstop0h 00m

C$ 416

MontrealLondon

YUL Montreal Pierre Elliott Trudeau Intl - STN London Stansted

YULSTN

Montreal Pierre Elliott Trudeau Intl

Tue 6/10

11:45 p.m.-5:55 p.m.

1 stop13h 10m

London Stansted

Wed 31/12

12:00 a.m.-6:00 p.m.

Nonstop0h 00m

C$ 420

MontrealLondon

YUL Montreal Pierre Elliott Trudeau Intl - LGW London Gatwick

YULLGW

Montreal Pierre Elliott Trudeau Intl

Sat 5/12

6:30 p.m.-9:05 p.m.

1 stop21h 35m

London Gatwick

Wed 31/12

12:00 a.m.-6:00 p.m.

Nonstop0h 00m

C$ 420

MontrealLondon

YUL Montreal Pierre Elliott Trudeau Intl - LGW London Gatwick

YULLGW

Montreal Pierre Elliott Trudeau Intl

Tue 29/9

2:55 p.m.-10:45 a.m.

1 stop14h 50m

London Gatwick

Wed 31/12

12:00 a.m.-6:00 p.m.

Nonstop0h 00m

C$ 421

MontrealLondon

YUL Montreal Pierre Elliott Trudeau Intl - LGW London Gatwick

YULLGW

Montreal Pierre Elliott Trudeau Intl

Tue 15/12

6:30 p.m.-2:15 p.m.

1 stop14h 45m

London Gatwick

Wed 31/12

12:00 a.m.-6:00 p.m.

Nonstop0h 00m

C$ 421

Flights are sorted by cheapest round-trip flights first.

Deals found on 21/9

Showing 1-10 of 60 resultsSorted by cheapest first

...

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.

YUL-LON

YUL-LGW

YUL-LTN

YUL-STN

YUL-LHR

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

YUL-LON

YUL-LGW

YUL-LTN

YUL-STN

YUL-LHR

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$ 927). Flying from Montreal Pierre Elliott Trudeau Intl Airport to London in December is currently the most expensive (average of C$ 1,319). 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?

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

The most flights from YUL to LON are scheduled on a Monday (13 on average). You will have fewer flight options on Wednesday, 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?

Airfare is typical for this route at the moment.

Montreal Pierre Elliott Trudeau Intl Airport to London flights typically cost between C$ 815 and C$ 1,082 in October.
The cheapest round-trip price found within the last 5 days was C$ 825 on Multiple Airlines (12 Oct-28 Oct).

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

Toronto (YYZ) – chosen by Cheapflights users on 62% 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?

Toronto (YYZ) is the most affordable 1-stop option, with an average round-trip price of C$ 551.

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

Flights via Paris (CDG) have the shortest average one-way travel time for 1-stop routes: 9h 55m.

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

Flights via Zurich (ZRH) offer the fastest connection on this route, with an average layover time of 0h 55m.

How often are flights from Montreal to London delayed?

About 23% of weekly flights between Montreal and London have experienced delays in the past year, with the average delay time being 148 minutes.

What is the most punctual flight time for Montreal to London flights?

Historically, flights departing at night 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?

Saturday 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 17% of flights being delayed.

How far ahead should I book a flight from Montreal Pierre Elliott Trudeau Intl Airport to London?

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 22 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

Reviews of airlines servicing London

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

462 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

D,Sep 2026

YHM - YVR

The flight including check-in, checked baggage, boarding, flight and timing were great. My checked bag was delayed two days which was concerning. They did deliver it to my door though which was great.

Porter Airlines

8.0

Very good

462 reviews

Porter Airlines

8.0

Very good

462 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

D,Sep 2026

YHM - YVR

Air Transat

7.7

Good

581 reviews

Porter Airlines

8.0

Very good

462 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

D,Sep 2026

YHM - YVR

Air Canada

7.1

Good

11,668 reviews

Porter Airlines

8.0

Very good

462 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

D,Sep 2026

YHM - YVR

Lufthansa

6.8

Okay

8,238 reviews

Porter Airlines

8.0

Very good

462 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

D,Sep 2026

YHM - YVR

British Airways

6.7

Okay

8,228 reviews

Porter Airlines

8.0

Very good

462 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

D,Sep 2026

YHM - YVR

Related info for your journey

How long is the flight from Montreal Pierre Elliott Trudeau Intl Airport to London?
For as low as C$ 927, Virgin Atlantic can have you in London from Montreal Pierre Elliott Trudeau Intl Airport in 9h 55m. 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 TAP AIR PORTUGAL. Our recent data shows that you can find tickets from as low as C$ 563 on this airline. Additional options worth looking into are Air Transat and Porter Airlines, starting at C$ 678 and C$ 723 round-trip. These flights start at 44% 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$ 397 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 Finnair, with prices starting from C$ 402 and C$ 560, 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 City or Montreal Pierre Elliott Trudeau Intl - London Gatwick as they are the most popular.
What are the most reliable airlines from Montreal Pierre Elliott Trudeau Intl Airport to London?
Consider Egyptair (73%), MEA (65%) or Air Canada (64%) 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$ 614. While the most popular route (Montreal Pierre Elliott Trudeau Intl - London Heathrow) can be booked for C$ 746 on average, our data indicates C$ 2,250 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$ 927). Flying from Montreal Pierre Elliott Trudeau Intl Airport to London in December is currently the most expensive (average of C$ 1,319). 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

Gatwick

Romford

Twickenham

Ilford

Bromley

Sutton

Luton

Slough

Marlow

Cobham

Hounslow

Wembley

Watford

High Wycombe

Browse thousands of different options on Cheapflights for your next trip

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Other flights from Pierre Elliott Trudeau Intl

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Fly from Pierre Elliott Trudeau Intl to London on these airlines

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 8 airlines flying from Pierre Elliott Trudeau Intl to London

Airline	Cheapest	Average	Flexibility	On-time
TAP AIR PORTUGAL	CheapestC$ 563	AverageC$ 851	FlexibilityNo cancel fee	On-timeN/A	Search TAP AIR PORTUGAL flights
Air Transat	CheapestC$ 678	AverageC$ 960	FlexibilityNo cancel fee	On-time50%	Search Air Transat flights
Porter Airlines	CheapestC$ 723	AverageC$ 935	FlexibilityNo cancel fee	On-time52%	Search Porter Airlines flights
British Airways	CheapestC$ 798	AverageC$ 1,066	FlexibilityNo cancel fee	On-time70%	Search British Airways flights
Air Canada	CheapestC$ 840	AverageC$ 1,082	FlexibilityNo cancel fee	On-time67%	Search Air Canada flights
Lufthansa	CheapestC$ 848	AverageC$ 1,098	FlexibilityNo cancel fee	On-time76%	Search Lufthansa flights
American Airlines	CheapestC$ 855	AverageC$ 1,011	FlexibilityNo cancel fee	On-time71%	Search American Airlines flights
Finnair	CheapestC$ 958	AverageC$ 1,096	FlexibilityNo cancel fee	On-time76%	Search Finnair flights

Fly with Cheapflights

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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Cheap flights from Montreal Pierre Elliott Trudeau Intl Airport to London from C$ 392

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 21/10. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Pierre Elliott Trudeau Intl to London

Cheapest flights from Pierre Elliott Trudeau Intl to LondonExplore 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 September 2026.

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 September 2026.

Best flights from Pierre Elliott Trudeau Intl to LondonDiscover carefully curated flight deals from Pierre Elliott Trudeau Intl to London that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 23 September 2026.

Discover carefully curated flight deals from Pierre Elliott Trudeau Intl to London that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 23 September 2026.

Direct flights from Pierre Elliott Trudeau Intl to LondonExplore direct flight options from Pierre Elliott Trudeau Intl to London based on user searches, and compare prices and availability for your desired travel dates. Data last updated 23 September 2026.

Explore direct flight options from Pierre Elliott Trudeau Intl to London based on user searches, and compare prices and availability for your desired travel dates. Data last updated 23 September 2026.

Last-minute flights from Pierre Elliott Trudeau Intl to LondonDiscover last-minute flight deals from Pierre Elliott Trudeau Intl to London. Data last updated 23 September 2026 and is based on user searches.

Discover last-minute flight deals from Pierre Elliott Trudeau Intl to London. Data last updated 23 September 2026 and is based on user searches.

One-way flights from Pierre Elliott Trudeau Intl to LondonSearch for one-way flight options from Pierre Elliott Trudeau Intl to London. Find affordable one-way fares based on user searches. Data last updated 23 September 2026.

Search for one-way flight options from Pierre Elliott Trudeau Intl to London. Find affordable one-way fares based on user searches. Data last updated 23 September 2026.

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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.

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What is the cheapest month to book a flight from Montreal Pierre Elliott Trudeau Intl Airport to London?

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 September 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

The most flights from YUL to LON are scheduled on a Monday (13 on average). You will have fewer flight options on Wednesday, 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?

Airfare is typical for this route at the moment.

Montreal Pierre Elliott Trudeau Intl Airport to London flights typically cost between C$ 815 and C$ 1,082 in October.The cheapest round-trip price found within the last 5 days was C$ 825 on Multiple Airlines (12 Oct-28 Oct).

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 62% 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$ 551.

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 Paris (CDG) have the shortest average one-way travel time for 1-stop routes: 9h 55m.

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 Zurich (ZRH) offer the fastest connection on this route, with an average layover time of 0h 55m.

How often are flights from Montreal to London delayed?

About 23% of weekly flights between Montreal and London have experienced delays in the past year, with the average delay time being 148 minutes.

What is the most punctual flight time for Montreal to London flights?

Historically, flights departing at night 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?

Saturday 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 17% of flights being delayed.

How far ahead should I book a flight from Montreal Pierre Elliott Trudeau Intl Airport to London?

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 22 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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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 September 2026.

Alternative routes for Pierre Elliott Trudeau Intl to London

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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 September 2026.

Best flights from Pierre Elliott Trudeau Intl to London
Discover carefully curated flight deals from Pierre Elliott Trudeau Intl to London that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 23 September 2026.

Direct flights from Pierre Elliott Trudeau Intl to London
Explore direct flight options from Pierre Elliott Trudeau Intl to London based on user searches, and compare prices and availability for your desired travel dates. Data last updated 23 September 2026.

Last-minute flights from Pierre Elliott Trudeau Intl to London
Discover last-minute flight deals from Pierre Elliott Trudeau Intl to London. Data last updated 23 September 2026 and is based on user searches.

One-way flights from Pierre Elliott Trudeau Intl to London
Search for one-way flight options from Pierre Elliott Trudeau Intl to London. Find affordable one-way fares based on user searches. Data last updated 23 September 2026.

Montreal Pierre Elliott Trudeau Intl Airport to London flights typically cost between C$ 815 and C$ 1,082 in October.
The cheapest round-trip price found within the last 5 days was C$ 825 on Multiple Airlines (12 Oct-28 Oct).