Q: 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 £543 and £681 in September. The cheapest return flight price found within the last 3 days was £403 on Air Transat (7 Sept-21 Sept).

Question 1

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

Accepted Answer

Flights via Amsterdam (AMS) offer the fastest connection on this route, with an average stopover time of 1h 05m.

Question 2

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

Accepted Answer

Airfare is below average for this route at the moment.Montreal to London flights typically cost between £543 and £681 in September.
The cheapest return flight price found within the last 3 days was £403 on Air Transat (7 Sept-21 Sept).

Question 3

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

Accepted Answer

Toronto (YYZ) – chosen by Cheapflights users on 60% of one-stop itineraries from Montreal to London on Cheapflights.

Question 4

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

Accepted Answer

Lisbon (LIS) is the most affordable one-stop option, with an average return flight price of £349.

Question 5

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

Accepted Answer

Flights via Amsterdam (AMS) have the shortest average one-way travel time for one-stop routes: 2h 05m.

Question 6

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 £403. Additional return tickets that might be worth considering are offered by Air Canada and Porter Airlines, with the lowest prices starting at £403 and £405, respectively. You may be able to fly from Montreal to London for 23% less than the average price by searching for these airlines.

Question 7

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

Accepted Answer

The cheapet airlines for a one-way flight from Montreal to London are TAP AIR PORTUGAL (£198), Porter Airlines (£199), and Air Transat (£201).

Question 8

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

Accepted Answer

The best time to book flights from Montreal to London is 82 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.

Question 9

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

Accepted Answer

Currently, January is the cheapest month in which you can book a flight from Montreal to London (average of £112). Flying from Montreal to London in August is currently the most expensive (average of £164). 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 10

What is the cheapest day to fly from Montreal to London?

Accepted Answer

Travellers seeking maximum savings on their Montreal to London flight should consider departing on Sunday afternoons when fares are most often at their lowest. Saturday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Question 11

Weekly flight availability from Montreal to London

Accepted Answer

The most flights from YMQ to LON are scheduled on a Tuesday (20 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (10 on average).

Question 12

E

Accepted Answer

In terms of precipitation, rainfall in London ranges from 40.0 - 70.0 inches 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 13

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 14

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 15

What are the cheapest flights from Montreal to London?

Accepted Answer

On average you can expect to pay £744 for a flight from Montreal to London. The cheapest flight overall is £226 while the most popular route, (Montreal Pierre Elliott Trudeau Intl - London Heathrow) is currently priced at £357.

Question 16

What are the most reliable airlines from Montreal to London?

Accepted Answer

The top 3 most reliable airlines when flying from Montreal to London are Austrian Airlines (88%), United Airlines (88%) and Lufthansa (88%).

Question 17

What is the cheapest day to fly round-trip from Montreal to London?

Accepted Answer

Flying to your destination on a Friday can be more expensive, but this shouldn’t discourage you from finding affordable options to get to London. Check prices with Cheapflights to find a great deal for your trip.

Question 18

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

Accepted Answer

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 45 days in advance, which can save you up to 19% on flights from Montreal to London compared to booking the week you need them. Waiting 45 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at £506. For sooner than that we have options available in the next 3 days from £662.

Question 19

What is the cheapest month to fly from Montreal to London?

Accepted Answer

Our data shows that May tends to be the cheapest month to fly to London from Montreal. Users have commonly found prices around £528 for the month, but tickets can be as low as £366. Due to multiple factors, prepare for potentially higher prices in December.

Question 20

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

Accepted Answer

Unlike in the morning, when flights are generally more expensive, you can save up to 16% on flights from Montreal to London by exploring options for tickets at midday.

Question 21

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 holiday packages that include both flights and hotel.

Question 22

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 23

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 24

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

Accepted Answer

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.

Question 25

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

Accepted Answer

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.

Question 26

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

Accepted Answer

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

Question 27

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.

Round-trip from	£403
One-way from	£198
Popular in	December
Cheapest in	May
Average price	£582
Good round-trip deal	£485 or less
Good one-way deal	£253 or less

Airline	Cheapest	Average	Flexibility	On-time
Air Transat	Cheapest£388	Average£590	FlexibilityNo cancel fee	On-time50%	Search Air Transat flights
Air Canada	Cheapest£407	Average£514	FlexibilityNo cancel fee	On-time67%	Search Air Canada flights
British Airways	Cheapest£416	Average£668	FlexibilityNo cancel fee	On-time70%	Search British Airways flights

Cheap flights from Montreal to London from £198

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 15/10. Fares are subject to change and may not be available on all flights or dates of travel.

Cheapflights Tip: The best prices from Montreal to London are usually found in May or September, booked 82 days in advance, depart on a Sunday or Wednesday and return on a Wednesday

Cheap flight deals from Montreal to London

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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 30 July 2025.

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 30 July 2025.

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

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.

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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 return flight from Montreal to London. Price data was last updated on 25 July 2025.

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 30 July 2025.

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 30 July 2025.

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

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

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

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

Average return fare for one-stop flights from Montreal to London, chosen by Cheapflights users in the past 12 months, with the same stopover each way.

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

Shortest average travel time for one-stop one-way flights from Montreal to London, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by stopover airport.

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

Average stopover duration for one-stop one-way flights from Montreal to London, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

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 30 July 2025.

Read reviews from past customers who have flown with Porter Airlines, Delta, andKLM 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.

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 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?

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Alternative routes for Montreal to London

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Top 3 airlines flying from Montreal to London

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

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

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 30 July 2025.