Cheap flights from Montreal to London from C$ 331

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 29/3. Fares are subject to change and may not be available on all flights or dates of travel.
YMQ — LON
28 Feb — 7 Mar1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Montreal to London are usually found in May or November, booked 86 days in advance, depart on a Sunday or Saturday and return on a Sunday

Cheap flight deals from Montreal to London

Enter your travel dates to find the best prices.

Cheapest flights from Montreal to London
Explore the most affordable flight options available from Montreal to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 29 January 2026.

Sun 1/29:45 p.m.
YUL
-
LHR
1 stop14h 45m
TAP AIR PORTUGAL
Sun 8/212:25 p.m.
LHR
-
YUL
1 stop12h 50m
TAP AIR PORTUGAL
Deal found 27/1C$ 658
Mon 20/410:45 p.m.
YUL
-
LHR
1 stop15h 05m
TAP AIR PORTUGAL
Mon 4/51:45 p.m.
LHR
-
YUL
1 stop12h 25m
TAP AIR PORTUGAL
Deal found 28/1C$ 660
Wed 4/29:45 p.m.
YUL
-
LHR
1 stop14h 45m
TAP AIR PORTUGAL
Sun 8/212:25 p.m.
LHR
-
YUL
1 stop12h 50m
TAP AIR PORTUGAL
Deal found 27/1C$ 661
Wed 4/39:45 p.m.
YUL
-
LGW
1 stop12h 20m
TAP AIR PORTUGAL
Wed 11/310:40 a.m.
LGW
-
YUL
1 stop14h 35m
TAP AIR PORTUGAL
Deal found 27/1C$ 662
Wed 4/29:45 p.m.
YUL
-
LHR
1 stop14h 45m
TAP AIR PORTUGAL
Mon 9/26:00 a.m.
LHR
-
YUL
1 stop19h 15m
TAP AIR PORTUGAL
Deal found 28/1C$ 662
Mon 9/29:45 p.m.
YUL
-
LGW
1 stop13h 00m
TAP AIR PORTUGAL
Wed 18/210:40 a.m.
LGW
-
YUL
1 stop14h 35m
TAP AIR PORTUGAL
Deal found 27/1C$ 667
Sun 22/210:15 a.m.
YUL
-
LGW
1 stop18h 30m
Air Transat
Mon 2/311:40 a.m.
LGW
-
YUL
1 stop26h 37m
Air Transat
Deal found 27/1C$ 668
Mon 9/29:45 p.m.
YUL
-
LHR
1 stop18h 50m
TAP AIR PORTUGAL
Wed 18/26:00 a.m.
LHR
-
YUL
1 stop19h 15m
TAP AIR PORTUGAL
Deal found 27/1C$ 669
Wed 18/29:45 p.m.
YUL
-
LHR
1 stop16h 10m
TAP AIR PORTUGAL
Tue 24/26:30 p.m.
LHR
-
YUL
1 stop30h 45m
TAP AIR PORTUGAL
Deal found 27/1C$ 671
Mon 27/410:45 p.m.
YUL
-
LHR
1 stop18h 15m
TAP AIR PORTUGAL
Mon 11/51:45 p.m.
LHR
-
YUL
1 stop12h 25m
TAP AIR PORTUGAL
Deal found 26/1C$ 672
Wed 29/410:45 p.m.
YUL
-
LHR
1 stop15h 05m
TAP AIR PORTUGAL
Mon 11/58:00 a.m.
LHR
-
YUL
1 stop18h 10m
TAP AIR PORTUGAL
Deal found 26/1C$ 682
Wed 29/410:45 p.m.
YUL
-
LHR
1 stop11h 50m
TAP AIR PORTUGAL
Fri 8/56:00 a.m.
LHR
-
YUL
1 stop20h 10m
TAP AIR PORTUGAL
Deal found 27/1C$ 683

Find flight deals from Montreal to London

Discover tips and strategies to find the most affordable flight options for your journey from Montreal (YMQ) 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 29 January 2026.

Round-trip from

C$ 660

One-way from

C$ 331

Popular in

December

Cheapest in

May

Average price

C$ 904

Good round-trip deal

C$ 866 or less

Good one-way deal

C$ 216 or less
TAP AIR PORTUGAL
  • TAP AIR PORTUGAL
  • 20/4-4/5
  • 2 total stops
  • 27h 30m total
  • Montreal to London
29/3
  • 29/3
  • 2 total stops
  • 35h 35m total
  • Montreal to London
Highest demand for flights based on searches. 2% potential increase in price (C$ 26 potential increase over avg. RT price).
Cheapest flight prices on average. 2% potential price decrease (C$ 27 potential savings vs. average RT price).
Average for round-trip flights in January 2026
Price to beat on a round-trip flight from Montreal (YMQ) to London (LON).
Price to beat on a one-way flight from Montreal (YMQ) to London (LON).

Cheapflights Fare Finder

 
Customize your flight search to find flights from Montreal 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 29 January 2026.
Use the filters below to find and compare flights from Montreal to London that are best for you.

Fly from

Montreal

Fly to

London

Route

Depart

Return

Price

MontrealLondon

YUL - STN

YULSTN

Montreal Pierre Elliott Trudeau Intl

Wed 4/3

9:45 p.m.-6:10 p.m.

1 stop15h 25m

London Stansted

Wed 11/3

6:30 a.m.-9:15 p.m.

1 stop18h 45m

C$ 748

MontrealLondon

YUL - LGW

YULLGW

Montreal Pierre Elliott Trudeau Intl

Wed 29/4

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

1 stop10h 25m

London Gatwick

Sun 10/5

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

Nonstop7h 40m

C$ 755

MontrealLondon

YUL - LGW

YULLGW

Montreal Pierre Elliott Trudeau Intl

Wed 29/4

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

1 stop10h 25m

London Gatwick

Wed 13/5

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

Nonstop7h 40m

C$ 755

MontrealLondon

YUL - LGW

YULLGW

Montreal Pierre Elliott Trudeau Intl

Wed 29/4

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

1 stop10h 25m

London Gatwick

Wed 6/5

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

Nonstop7h 40m

C$ 763

MontrealLondon

YUL - LGW

YULLGW

Montreal Pierre Elliott Trudeau Intl

Sat 25/4

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

1 stop10h 25m

London Gatwick

Fri 15/5

12:40 p.m.-7:30 p.m.

1 stop11h 50m

C$ 767

MontrealLondon

YUL - LGW

YULLGW

Montreal Pierre Elliott Trudeau Intl

Sat 14/3

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

1 stop31h 30m

London Gatwick

Thu 26/3

11:40 a.m.-8:52 p.m.

1 stop13h 12m

C$ 771

MontrealLondon

YUL - LGW

YULLGW

Montreal Pierre Elliott Trudeau Intl

Tue 21/4

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

1 stop10h 25m

London Gatwick

Thu 23/4

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

1 stop16h 55m

C$ 775

MontrealLondon

YUL - LGW

YULLGW

Montreal Pierre Elliott Trudeau Intl

Fri 20/3

7:20 p.m.-9:45 a.m.

1 stop10h 25m

London Gatwick

Sat 11/4

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

1 stop16h 55m

C$ 775

MontrealLondon

YUL - LTN

YULLTN

Montreal Pierre Elliott Trudeau Intl

Wed 15/4

6:35 p.m.-6:05 p.m.

1 stop18h 30m

London Luton

Thu 30/4

5:40 a.m.-2:30 p.m.

1 stop13h 50m

C$ 778

MontrealLondon

YUL - LTN

YULLTN

Montreal Pierre Elliott Trudeau Intl

Sun 8/3

9:10 p.m.-2:35 p.m.

1 stop13h 25m

London Luton

Wed 18/3

2:40 p.m.-1:35 p.m.

1 stop26h 55m

C$ 786

Flights are sorted by cheapest round-trip flights first.

Deals found on 27/1

Showing 1-10 of 60 results
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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 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 to London

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

Use this chart to determine the optimal time to book a round-trip flight from Montreal to London. Price data was last updated on 23 January 2026.

The price you pay for your flight from Montreal 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 to London?

Currently, March is the cheapest month in which you can book a flight from Montreal to London (average of C$ 272). Flying from Montreal to London in July is currently the most expensive (average of C$ 876). 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?

Find hourly flight availability from Montreal 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 29 January 2026.

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

Explore weekly flight availability from Montreal 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 29 January 2026.

The most flights from YMQ to LON are scheduled on a Tuesday (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 to fly round-trip from Montreal to London?

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

Share of one-stop round-trip flights from Montreal to London chosen by Cheapflights users in the past 12 months, using the same layover each way.

Toronto (YYZ) – chosen by Cheapflights users on 59% of one-stop itineraries from Montreal to London on Cheapflights.

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

Average round-trip fare for 1-stop flights from Montreal 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$ 686.

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

Shortest average travel time for 1-stop one-way flights from Montreal 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 to London?

Average layover duration for 1-stop one-way flights from Montreal 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 158 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 7% 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 29 January 2026.
Read reviews from past customers who have flown Porter Airlines,Air Transat, andAir Canada 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.

Comfort

7.9

Crew

8.6

Boarding

8.2

Food

7.5

Entertainment

6.9

Overall

7.9

Reviews

1 / 20
8.0
Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out

Comfort

7.9

Crew

8.6

Boarding

8.2

Food

7.5

Entertainment

6.9

Overall

7.9

Reviews

1 / 20
8.0
Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out

Comfort

7.9

Crew

8.6

Boarding

8.2

Food

7.5

Entertainment

6.9

Overall

7.9

Reviews

1 / 20
8.0
Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out

Comfort

7.9

Crew

8.6

Boarding

8.2

Food

7.5

Entertainment

6.9

Overall

7.9

Reviews

1 / 20
8.0
Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out

Comfort

7.9

Crew

8.6

Boarding

8.2

Food

7.5

Entertainment

6.9

Overall

7.9

Reviews

1 / 20
8.0
Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out

Comfort

7.9

Crew

8.6

Boarding

8.2

Food

7.5

Entertainment

6.9

Overall

7.9

Reviews

1 / 20
8.0
Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out

Montreal to London Travel Guide

London Gatwick is an international airport that is outside the central London area. It’s actually about 30 miles from the city centre. This is the second busiest airport in the United Kingdom. Its physical footprint is about 1,670 acres.

The largest and busiest airport in the United Kingdom, and the main airport in London, is London Heathrow. This airport is actually the second busiest airport in the entire world. It’s located only 14 miles from the middle of London.

Generally you’ll find that the stopover times are only a few hours, but there are some that will make your travel time up to double what the direct flights are. You will find that the stopover flights do sometimes cost less than direct flights do for this route, but it varies.

Related info for your journey

Find useful and relevant information for your journey from Montreal to London. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • What airports serve Montreal to London flights?

    You will fly from Pierre Elliott Trudeau International Airport in Montreal to London and land at either London Gatwick or London Heathrow. There are many flight options to choose from so you’ll be able to find a good fit for your trip.

  • Which airlines fly directly from Montreal to London?

    You will be able to find direct flights from Montreal into Heathrow on Air Canada, Lufthansa, American Airlines, Iberia, Finnair, and British Airways. The flight takes 6h 35m. Lufthansa’s flight is handled by Air Canada. American Airlines, Iberia, and Finnair are all handled by British Airways.

  • What are the stopover options between Montreal to London?

    You can fly on WestJet and you’ll stop in Toronto on your way to London Gatwick. Virgin Atlantic has flights to London Heathrow that stop in Amsterdam or at JFK in New York. Other stops include Newark or Paris.

  • Do I need a passport or visa to fly from Montreal to London?

    You will need your passport to visit London. You will not, however, need to get a visa for traveling to London for pleasure. The authority will stamp your passport upon arrival and that will allow you to stay for up to six months. Staying longer than that or traveling for any other reason may require a visa.

  • How long is the flight from Montreal to London?

    A quick flight from Montreal to London can take about 10h 25m. Air Transat provides one of the quickest options available for as low as C$ 755. Montreal and London are separated by a distance of 5243 km. Both multi-stop and direct flights can be found to your destination and back.

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

    Flying on Air Transat is currently your cheapest option to London, with prices starting at C$ 645. Additional round-trip tickets that might be worth considering are offered by TAP AIR PORTUGAL and Porter Airlines, with the lowest prices starting at C$ 670 and C$ 719, respectively. Air Transat is currently priced 30% below the average price you’ll pay for this route.

  • What are the cheapest airlines to fly from Montreal to London one-way?

    The cheapest airlines for a one-way flight from Montreal to London are Air Transat (C$ 330), TAP AIR PORTUGAL (C$ 385), and Lufthansa (C$ 428).

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

  • What are the most reliable airlines from Montreal to London?

    Before booking your flight to London from Montreal, check out the most reliable airlines to get you to your destination on time: American Airlines (53%), Aer Lingus (53%), Finnair( 53%).

  • What are the cheapest flights from Montreal to London?

    The cheapest flight price from Montreal to London is C$ 685. On average you can expect to pay C$ 2,022. The most popular route, (Montreal Pierre Elliott Trudeau Intl - London Heathrow), can usually be booked for C$ 638.

  • 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 vacation 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, March is the cheapest month in which you can book a flight from Montreal to London (average of C$ 272). Flying from Montreal to London in July is currently the most expensive (average of C$ 876). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Travelling to a place near London?

Book flights to London if you plan to visit one of these locations
Sutton
Twickenham
Gatwick
Slough
Marlow
Cobham
Milton Keynes
Romford
Bedford
Watford
Luton
High Wycombe
Hounslow

Browse thousands of different options on Cheapflights for your next trip

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Fly from Montreal to London on these airlines

Choose from the following airlines for your flight from Montreal to London. Flights are based on user searches made on Cheapflights and were last updated on 29 January 2026.

Top 10 airlines flying from Montreal to London

Discover the top 10 airlines that operate flights from Montreal 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 29 January 2026.
AirlineCheapestAverageFlexibilityOn-time
Air TransatCheapestC$ 645AverageC$ 924FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
TAP AIR PORTUGALCheapestC$ 670AverageC$ 725FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
Porter AirlinesCheapestC$ 719AverageC$ 962FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
Air CanadaCheapestC$ 742AverageC$ 999FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
British AirwaysCheapestC$ 743AverageC$ 1,018FlexibilityNo cancel feeOn-time70%
Search British Airways flights
LufthansaCheapestC$ 745AverageC$ 986FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Air FranceCheapestC$ 752AverageC$ 1,086FlexibilityNo cancel feeOn-time77%
Search Air France flights
American AirlinesCheapestC$ 764AverageC$ 1,028FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
Virgin AtlanticCheapestC$ 779AverageC$ 1,073FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
FinnairCheapestC$ 949AverageC$ 1,049FlexibilityNo 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 Montreal to London?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Montreal to London. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from Montreal to London?

Millions of users choose and trust Cheapflights to book the best flight deals from Montreal to London for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

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

Cheapflights does show flights with no change fees to all users. To see these options for flights from Montreal to London, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from Montreal to London become cheaper?

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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