Q: How much does it cost to fly round-trip from Montreal to London?

Airfare is below average for this route at the moment. Montreal to London flights typically cost between C$ 796 and C$ 1,010 in April. The cheapest round-trip price found within the last 3 days was C$ 660 on TAP AIR PORTUGAL (20 Apr-4 May).

Question 1

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

Accepted Answer

Lisbon (LIS) is the most affordable 1-stop option, with an average round-trip price of C$ 686.

Question 2

How much does it cost to fly round-trip from Montreal to London?

Accepted Answer

Airfare is below average for this route at the moment.Montreal to London flights typically cost between C$ 796 and C$ 1,010 in April.
The cheapest round-trip price found within the last 3 days was C$ 660 on TAP AIR PORTUGAL (20 Apr-4 May).

Question 3

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

Accepted Answer

Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the evening tend to experience delays more often.

Question 4

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

Accepted Answer

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

Question 5

What day of the week experiences the fewest flight delays on this route?

Accepted Answer

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.

Question 6

Which airline has the best punctuality record on Montreal to London flights?

Accepted Answer

Over the past year, Air Transat has had the lowest number of delays on this route, with just 7% of flights being delayed.

Question 7

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

Accepted Answer

Flights via Ottawa (YOW) have the shortest average one-way travel time for 1-stop routes: 9h 00m.

Question 8

How often are flights from Montreal to London delayed?

Accepted Answer

About 20% of weekly flights between Montreal and London have experienced delays in the past year, with the average delay time being 158 minutes.

Question 9

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

Accepted Answer

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

Question 10

How long is the flight from Montreal to London?

Accepted Answer

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.

Question 11

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

Accepted Answer

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.

Question 12

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

Accepted Answer

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).

Question 13

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

Accepted Answer

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.

Question 14

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

Accepted Answer

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.

Question 15

Weekly flight availability from Montreal to London

Accepted Answer

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).

Question 16

E

Accepted Answer

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.

Question 17

E

Accepted Answer

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).

Question 18

What are the most popular routes from Montreal to London?

Accepted Answer

When deciding which route to take from Montreal 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.

Question 19

What are the cheapest flights from Montreal to London?

Accepted Answer

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.

Question 20

What are the most reliable airlines from Montreal to London?

Accepted Answer

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%).

Question 21

What are the most popular airlines that fly from Montreal to London?

Accepted Answer

Consider Air Canada, British Airways or Lufthansa when booking your flight. These represent the most popular airlines when flying from Montreal to London.

Question 22

What is the cheapest time of day to fly from YMQ to LON?

Accepted Answer

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.

Question 23

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

Accepted Answer

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

Question 24

How can I find direct flights from Montreal to London?

Accepted Answer

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

Question 25

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

Accepted Answer

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.

Question 26

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

Accepted Answer

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.

Question 27

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

Accepted Answer

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.

Question 28

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

Accepted Answer

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.

Question 29

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

Accepted Answer

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.

Question 30

What airports serve Montreal to London flights?

Accepted Answer

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.

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.

Question 31

Which airlines fly directly from Montreal to London?

Accepted Answer

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.

Question 32

What are the stopover options between Montreal to London?

Accepted Answer

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.

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.

Question 33

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

Accepted Answer

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.

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

Airline	Cheapest	Average	Flexibility	On-time
Air Transat	CheapestC$ 645	AverageC$ 924	FlexibilityNo cancel fee	On-time50%	Search Air Transat flights
TAP AIR PORTUGAL	CheapestC$ 670	AverageC$ 725	FlexibilityNo cancel fee	On-timeN/A	Search TAP AIR PORTUGAL flights
Porter Airlines	CheapestC$ 719	AverageC$ 962	FlexibilityNo cancel fee	On-time52%	Search Porter Airlines flights
Air Canada	CheapestC$ 742	AverageC$ 999	FlexibilityNo cancel fee	On-time67%	Search Air Canada flights
British Airways	CheapestC$ 743	AverageC$ 1,018	FlexibilityNo cancel fee	On-time70%	Search British Airways flights
Lufthansa	CheapestC$ 745	AverageC$ 986	FlexibilityNo cancel fee	On-time76%	Search Lufthansa flights
Air France	CheapestC$ 752	AverageC$ 1,086	FlexibilityNo cancel fee	On-time77%	Search Air France flights
American Airlines	CheapestC$ 764	AverageC$ 1,028	FlexibilityNo cancel fee	On-time71%	Search American Airlines flights
Virgin Atlantic	CheapestC$ 779	AverageC$ 1,073	FlexibilityNo cancel fee	On-time72%	Search Virgin Atlantic flights
Finnair	CheapestC$ 949	AverageC$ 1,049	FlexibilityNo cancel fee	On-time76%	Search Finnair flights

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.

Cheap flight deals from Montreal to London

Cheapest flights from Montreal to LondonExplore 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.

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.

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Best time to book a flight from Montreal to London

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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.

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

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.

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.

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.

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.

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.

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.

How often are flights from Montreal to London delayed?

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

What day of the week experiences the fewest flight delays on this route?

Which airline has the best punctuality record on Montreal to London flights?

Reviews of airlines servicing London

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.

Montreal to London Travel Guide

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?

Which airlines fly directly from Montreal to London?

What are the stopover options between Montreal to London?

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

How long is the flight from Montreal to London?

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

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

What are the most popular routes from Montreal to London?

What are the most reliable airlines from Montreal to London?

What are the cheapest flights from Montreal to London?

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

How can I find direct flights from Montreal to London?

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

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

Travelling to a place near London?

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Top 10 airlines flying from Montreal to London

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

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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.