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Cheap flights from Montreal to London from £215

YMQ — LON
5 Dec — 12 Dec1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Montreal to London are usually found in September or May, booked 34 days in advance, depart on a Sunday or Friday and return on a Friday

Cheap flight deals from Montreal to London

Enter your travel dates to find the best prices.

Cheapest flights from Montreal to London

Tue 17/1118:50 -
1 stop14h 35m
Tue 24/1107:25 -
1 stop13h 15m
Deal found 1/11£469
Sat 7/1118:10 -
1 stop12h 50m
Mon 9/1111:05 -
2 stops37h 43m
Deal found 31/10£469
Tue 17/1117:25 -
1 stop11h 20m
Sun 22/1111:40 -
1 stop12h 32m
Deal found 1/11£470
Wed 25/1121:40 -
1 stop14h 00m
Sun 29/1107:45 -
1 stop16h 55m
Deal found 31/10£471
Wed 2/1220:10 -
1 stop20h 05m
Tue 8/1206:10 -
1 stop11h 30m
Deal found 31/10£471
Thu 19/1120:10 -
1 stop15h 30m
Thu 26/1114:45 -
1 stop26h 55m
Deal found 3/11£473
Mon 9/1114:15 -
1 stop14h 30m
Mon 16/1111:40 -
1 stop17h 52m
Deal found 1/11£474
Fri 27/1120:20 -
1 stop13h 25m
Tue 1/1209:40 -
2 stops34h 30m
Deal found 4/11£474
Sat 21/1106:45 -
1 stop22h 00m
Fri 27/1111:40 -
1 stop15h 37m
Deal found 1/11£475
Wed 9/1217:25 -
1 stop11h 20m
Mon 18/111:40 -
1 stop17h 59m
Deal found 1/11£476
Wed 18/1114:15 -
1 stop14h 30m
Sun 22/1111:40 -
1 stop12h 32m
Deal found 31/10£477
Mon 9/1120:10 -
1 stop18h 30m
Mon 16/1107:00 -
1 stop10h 40m
Deal found 4/11£477

Find flight deals from Montreal to London

Round-trip from

£469

One-way from

£215

Popular in

December

Cheapest in

September

Average price

£503

Good round-trip deal

£498 or less

Good one-way deal

£347 or less
17/11-24/11
  • 17/11-24/11
  • 2 total stops
  • 27h 50m total
  • Montreal to London
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TAP AIR PORTUGAL
  • TAP AIR PORTUGAL
  • 25/11-31/12
  • 1 total stop
  • 12h 45m total
  • Montreal to London
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Highest demand for flights based on searches. 5% potential increase in price (£22 potential increase over avg. return price).
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Cheapest flight prices on average. 3% potential price decrease (£12 potential savings vs. average return price).
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Average for round-trip flights in November 2026
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Price to beat on a round-trip flight from Montreal (YMQ) to London (LON).
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Price to beat on a one-way flight from Montreal (YMQ) to London (LON).
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Cheapflights Fare Finder

 
Use the filters below to find and compare flights from Montreal to London that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

MontrealLondon

YUL Montreal Pierre Elliott Trudeau Intl - LGW London Gatwick

YULLGW

Montreal Pierre Elliott Trudeau Intl

Mon 7/12

20:15-22:35

1 stop21h 20m

London Gatwick

Wed 31/12

00:00-18:00

Nonstop0h 00m

£226

MontrealLondon

YUL Montreal Pierre Elliott Trudeau Intl - LHR London Heathrow

YULLHR

Montreal Pierre Elliott Trudeau Intl

Sun 6/12

21:40-14:25

1 stop11h 45m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£250

MontrealLondon

YUL Montreal Pierre Elliott Trudeau Intl - LGW London Gatwick

YULLGW

Montreal Pierre Elliott Trudeau Intl

Mon 3/5

22:45-09:50

1 stop30h 05m

London Gatwick

Wed 31/12

00:00-18:00

Nonstop0h 00m

£256

MontrealLondon

YUL Montreal Pierre Elliott Trudeau Intl - LGW London Gatwick

YULLGW

Montreal Pierre Elliott Trudeau Intl

Fri 27/11

22:10-18:10

1 stop15h 00m

London Gatwick

Wed 31/12

00:00-18:00

Nonstop0h 00m

£259

MontrealLondon

YUL Montreal Pierre Elliott Trudeau Intl - LGW London Gatwick

YULLGW

Montreal Pierre Elliott Trudeau Intl

Tue 4/5

19:20-12:40

2 stops12h 20m

London Gatwick

Wed 31/12

00:00-18:00

Nonstop0h 00m

£262

MontrealLondon

YUL Montreal Pierre Elliott Trudeau Intl - LGW London Gatwick

YULLGW

Montreal Pierre Elliott Trudeau Intl

Fri 11/12

20:30-22:55

1 stop21h 25m

London Gatwick

Wed 31/12

00:00-18:00

Nonstop0h 00m

£264

MontrealLondon

YUL Montreal Pierre Elliott Trudeau Intl - LGW London Gatwick

YULLGW

Montreal Pierre Elliott Trudeau Intl

Sun 2/5

22:45-11:20

2 stops31h 35m

London Gatwick

Wed 31/12

00:00-18:00

Nonstop0h 00m

£264

MontrealLondon

YUL Montreal Pierre Elliott Trudeau Intl - LGW London Gatwick

YULLGW

Montreal Pierre Elliott Trudeau Intl

Thu 15/4

20:45-23:30

1 stop21h 45m

London Gatwick

Wed 31/12

00:00-18:00

Nonstop0h 00m

£278

MontrealLondon

YUL Montreal Pierre Elliott Trudeau Intl - LHR London Heathrow

YULLHR

Montreal Pierre Elliott Trudeau Intl

Tue 10/11

18:30-20:05

1 stop20h 35m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£293

MontrealLondon

YUL Montreal Pierre Elliott Trudeau Intl - LGW London Gatwick

YULLGW

Montreal Pierre Elliott Trudeau Intl

Tue 1/12

20:10-19:40

1 stop18h 30m

London Gatwick

Wed 31/12

00:00-18:00

Nonstop0h 00m

£294

Flights are sorted by cheapest return flights first.

Deals found on 1/11

Showing 1-10 of 60 resultsSorted by cheapest first
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Best time to book a flight from Montreal to London

Have a flexible travel schedule? Discover the best time to fly to London from Montreal with our price prediction graph.
Estimated return price

Cheapflights Insights

Everything you need to know about your flight from Montreal to London

What is the cheapest month to book a flight from Montreal to London?

Currently, September is the cheapest month in which you can book a flight from Montreal to London (average of £488). Flying from Montreal to London in December is currently the most expensive (average of £724). 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 YMQ to LON?

When flying from Montreal 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 to London

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

How much does it cost for a return flight from Montreal to London?

Airfare is below average for this route at the moment.
Montreal to London flights typically cost between £476 and £555 in November.
The cheapest return price found within the last 5 days was £469 on Multiple Airlines (17 Nov–24 Nov).

What’s the top stopover airport for flights from Montreal to London?

Newark (EWR) – chosen by Cheapflights users on 31% of one-stop itineraries from Montreal to London on Cheapflights.

What’s the cheapest stopover airport for flights from Montreal to London?

Toronto (YYZ) is the most affordable one-stop option, with an average return flight price of £554.

What’s the fastest stopover option from Montreal to London?

Flights via Newark (EWR) have the shortest average one-way travel time for one-stop routes: 10h 20m.

Which airport typically offers the quickest stopover for flights from Montreal to London?

Flights via Newark (EWR) offer the fastest connection on this route, with an average stopover time of 1h 20m.

How often are flights from Montreal to London delayed?

About 24% of weekly flights between Montreal and London have experienced delays in the past year, with the average delay time being 150 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 have had the lowest number of delays on this route, with just 20% of flights being delayed.

How far ahead should I book a flight from Montreal to London?

The best time to book flights from Montreal to London is 22 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

Reviews of airlines servicing London

Read reviews from past customers who have flown with Air Transat,Air Canada, andBritish Airways from Montreal to London. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Air Transat
7.7
Good
584 reviews
Check prices

Entertainment

7.0

Food

6.7

Overall

7.7

Boarding

7.9

Comfort

7.3

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Paul,Jul 2026

YUL - LGW

Had to bus to the plane which made priority boarding at the back of the bus
Air Transat
7.7
Good
584 reviews
Air Transat
7.7
Good
584 reviews
Check prices

Entertainment

7.0

Food

6.7

Overall

7.7

Boarding

7.9

Comfort

7.3

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Paul,Jul 2026

YUL - LGW

Had to bus to the plane which made priority boarding at the back of the bus
Air Canada
7.1
Good
11,859 reviews
Air Transat
7.7
Good
584 reviews
Check prices

Entertainment

7.0

Food

6.7

Overall

7.7

Boarding

7.9

Comfort

7.3

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Paul,Jul 2026

YUL - LGW

Had to bus to the plane which made priority boarding at the back of the bus
British Airways
6.7
Okay
8,282 reviews
Air Transat
7.7
Good
584 reviews
Check prices

Entertainment

7.0

Food

6.7

Overall

7.7

Boarding

7.9

Comfort

7.3

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Paul,Jul 2026

YUL - LGW

Had to bus to the plane which made priority boarding at the back of the bus

Related info for your journey

  • How long is the flight from Montreal to London?

    There are many flights that can get you from Montreal to London in 10h 25m. Fly via Air Transat, Delta, or Virgin Atlantic to get the fastest option. Montreal and London are separated by a distance of 3239 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines flying from Montreal to London round-trip?

    Flying on Air Canada is currently your cheapest option to London, with prices starting at £432. Another option worth looking into is British Airways, starting at £434 return. You may be able to fly from Montreal to London for 18% less than the average price by searching for these airlines.

  • What are the most popular routes from Montreal to London?

    When deciding which route to take from Montreal 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 to London?

    The top 3 most reliable airlines when flying from Montreal to London are Aegean Airlines (88%), Egyptair (87%) and Thai Airways (87%).

  • What are the cheapest flights from Montreal to London?

    On average you can expect to pay £510 for a flight from Montreal to London. The cheapest flight overall is £316 while the most popular route, (Montreal Pierre Elliott Trudeau Intl - London Heathrow) is currently priced at £419.

  • Can I find deals for flights from Montreal to London that include hotel bookings?

    Yes. In addition to deals on Montreal to London flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Montreal to London?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Montreal to London.

  • Can I find deals for business class flights from Montreal to London?

    Yes. Cheapflights offers flight deals from Montreal 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 to London?

    Currently, September is the cheapest month in which you can book a flight from Montreal to London (average of £488). Flying from Montreal to London in December is currently the most expensive (average of £724). 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?

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Enfield
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Harrow
Watford
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Dagenham
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Browse thousands of different options on Cheapflights for your next trip

Top 2 airlines flying from Montreal to London

AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest£432Average£565FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
British AirwaysCheapest£434Average£619FlexibilityNo cancel feeOn-time70%
Search British Airways flights

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How does Cheapflights help users find flights from Montreal to London?

When you search for this flight from Montreal 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 Montreal to London?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to London from Montreal.

Can Cheapflights find flights from Montreal to London with no change fees?

Yes! Cheapflights helps users easily find flights from Montreal to London with no change fees.

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Yes! Start tracking prices for Montreal to London flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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