Question 1

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$ 731. Additional round-trip tickets that might be worth considering are offered by British Airways and Air Canada, with the lowest prices starting at C$ 735 and C$ 739, respectively. Air Transat is currently priced 24% below the average price you’ll pay for this route.

Question 2

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 Porter Airlines (C$ 371), TAP AIR PORTUGAL (C$ 371), and Air Transat (C$ 372).

Question 3

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

Question 4

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 C$ 560). Flying from Montreal to London in July is currently the most expensive (average of C$ 859). 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 5

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

Accepted Answer

Travelers seeking maximum savings on their Montreal to London flight should consider departing on Wednesday at noon when fares are most often at their lowest. Tuesday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

Question 6

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 (13 on average).

Question 7

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 8

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 9

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 10

What are the cheapest flights from Montreal to London?

Accepted Answer

The cheapest flight price from Montreal to London is C$ 447. On average you can expect to pay C$ 2,026. The most popular route, (Montreal Pierre Elliott Trudeau Intl - London Heathrow), can usually be booked for C$ 679.

Question 11

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: Austrian Airlines (88%), United Airlines (88%), Lufthansa( 88%).

Question 12

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

Accepted Answer

Consider American Airlines, Air Canada or Air France when booking your flight. These represent the most popular airlines when flying from Montreal to London.

Question 13

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

Accepted Answer

Users have found that flying from Montreal to London on a Monday typically leans towards higher prices. However, this doesn’t mean you still can’t find a deal. Flexibility with other aspects of your flight can still land a great price for your trip.

Question 14

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

Accepted Answer

To save up to 22% on this flight, we recommend booking at least 45 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from Montreal to London from C$ 921 1-2 weeks out and tickets from C$ 1,207 for flights departing within the next 72 hours.

Question 15

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

Accepted Answer

Flights from Montreal to London lean towards being more expensive in December. Prices are generally better when you fly from Montreal to London in May, with the cheapest ticket starting at C$ 668.

Question 16

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

Accepted Answer

It’s typically best to fly out from Montreal to London at noon. Doing so could potentially save you 35% on the flight price compared to flying in the evening, which is usually more expensive.

Question 17

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 18

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 19

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 20

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 21

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 22

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 23

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 24

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 25

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 26

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 27

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$ 731
One-way from	C$ 371
Popular in	December
Cheapest in	May
Average price	C$ 1,058
Good round-trip deal	C$ 763 or less
Good one-way deal	C$ 368 or less

Airline	Cheapest	Average	Flexibility	On-time
TAP AIR PORTUGAL	CheapestC$ 598	AverageC$ 675	FlexibilityNo cancel fee	On-timeN/A	Search TAP AIR PORTUGAL flights
Air Transat	CheapestC$ 650	AverageC$ 977	FlexibilityNo cancel fee	On-time50%	Search Air Transat flights
Porter Airlines	CheapestC$ 683	AverageC$ 879	FlexibilityNo cancel fee	On-time52%	Search Porter Airlines flights
Air Canada	CheapestC$ 742	AverageC$ 983	FlexibilityNo cancel fee	On-time67%	Search Air Canada flights
Virgin Atlantic	CheapestC$ 762	AverageC$ 855	FlexibilityNo cancel fee	On-time72%	Search Virgin Atlantic flights
Lufthansa	CheapestC$ 762	AverageC$ 996	FlexibilityNo cancel fee	On-time76%	Search Lufthansa flights
British Airways	CheapestC$ 786	AverageC$ 1,020	FlexibilityNo cancel fee	On-time70%	Search British Airways flights
KLM	CheapestC$ 796	AverageC$ 1,000	FlexibilityNo cancel fee	On-time75%	Search KLM flights
Air France	CheapestC$ 809	AverageC$ 907	FlexibilityNo cancel fee	On-time77%	Search Air France flights
American Airlines	CheapestC$ 940	AverageC$ 1,131	FlexibilityNo cancel fee	On-time71%	Search American Airlines flights

Cheap flights from Montreal to London from C$ 371

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 9/9. 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 44 days in advance, depart on a Sunday or Thursday and return on a Wednesday

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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 14 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 14 July 2025.

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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.

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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 11 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 14 July 2025.

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

Use this chart to determine the cheapest time to fly round-trip from Montreal to London. Price data was last updated on 15 September 2024.

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 14 July 2025.

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

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 14 July 2025.

Read reviews from past customers who have flown 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.

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?

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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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 14 July 2025.

Top 10 airlines flying from Montreal to London

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

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

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 14 July 2025.