Question 1

What is the cheapest month to fly to London Heathrow Airport?

Accepted Answer

In general, November is the cheapest month to fly from Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £458. The month of October is another great option to travel to London Heathrow Airport, with average flight prices from Montreal Pierre Elliott Trudeau Intl Airport averaging around £484.

Question 2

How often are flights from Montreal to London delayed?

Accepted Answer

Historically, on average around 24% of flights between Montreal and London have experienced a delay on any given week. The average delay length over the past 12 months has been 164 minutes.

Question 3

What is the cheapest time of day to depart on your flight to London Heathrow Airport?

Accepted Answer

According to our data, the cheapest time of day to fly to London Heathrow Airport is in the afternoon. momondo users have found flights departing from Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow Airport in the afternoon for as low as £504. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. If you have a flexible travel schedule, then try to avoid flying in the evening when prices are £533 on average. Flights to London Heathrow Airport from Montreal Pierre Elliott Trudeau Intl Airport in the evening are generally more expensive because this time of day is more convenient for travellers’ schedules.

Question 4

How far in advance should I book a flight to London Heathrow Airport?

Accepted Answer

You are more likely to see cheaper flights to London Heathrow Airport from Montreal Pierre Elliott Trudeau Intl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to London Heathrow Airport for around £534 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London Heathrow Airport from Montreal Pierre Elliott Trudeau Intl Airport for as low as £480 on momondo.

Question 5

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

Accepted Answer

According to our data, Air Canada have had the fewest delays on this route over the last 12 months, with about 23% of their flights experiencing any sort of delay.

Question 6

What cabin class options are available on Montreal Pierre Elliott Trudeau Intl to London Heathrow flights?

Accepted Answer

There are 3 cabin classes available to choose from on Montreal Pierre Elliott Trudeau Intl to London Heathrow flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Question 7

How have Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow Airport flight prices changed over time?

Accepted Answer

As of February 2026, prices for Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow Airport flights are approximately 20% more expensive when compared to flights at the same time last year.

Question 8

What is the cheapest Montreal Pierre Elliott Trudeau Intl to London Heathrow flight route?

Accepted Answer

Fly from Montreal Pierre Elliott Trudeau Intl to London Heathrow for the best Montreal Pierre Elliott Trudeau Intl - London Heathrow flight prices

Question 9

Can stopping save me money on Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow Airport flights?

Accepted Answer

You could potentially save up to 50% on your flight if you consider stops on a Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow Airport flight.

Question 10

How many flights depart from Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow Airport on average per week?

Accepted Answer

As of February 2026, there are 66 flights per week flying from Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow Airport. The most common day of the week flights depart is Mon, with 18% of flights taking off on this day.

Question 11

What is the cheapest day to depart on your flight to London Heathrow Airport?

Accepted Answer

On average, the least expensive day to fly to London Heathrow Airport from Montreal Pierre Elliott Trudeau Intl Airport is on a Sunday. momondo users have found tickets for Sunday departures for as low as £438. However, this price may fluctuate depending on the airline, the season, and holidays. Be sure to avoid booking your departure on a Saturday as prices are generally higher than usual. According to our data, the average ticket price to London Heathrow Airport on Saturday is £624.

Question 12

Which airlines fly to London Heathrow Airport?

Accepted Answer

Air Canada, British Airways and Lufthansa are the top three most popular airlines that fly to London Heathrow Airport from Montreal Pierre Elliott Trudeau Intl Airport according to our data. Air Canada is the first choice among our users, with 78% of people opting to fly with this airline when travelling to London Heathrow Airport. Keep in mind that there are 3 different airlines that fly to London Heathrow Airport on a routine basis, so you have a few additional options to choose from.

Question 13

How many flights depart from Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow Airport on average per day?

Accepted Answer

The number of flights available between Montreal Pierre Elliott Trudeau Intl Airport and London Heathrow Airport is 9 per day as of February 2026. The most frequent departure time is 19:00, with 100% of daily flights leaving in the evening.

Question 14

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

Accepted Answer

Wednesday is statistically the day of the week that experiences the fewest delays on this flight route. Saturday has historically seen more delays on average compared to the rest of the week.

Question 15

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

Accepted Answer

Generally, flights departing in the morning tend to experience fewer delays. Flights departing in the evening have, in the past, seen delays more frequently in comparison.

Question 16

When did momondo last update prices for flights from Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow Airport?

Accepted Answer

Prices for flights from Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow Airport are refreshed on a daily basis.

Question 17

How many operators does momondo search for flights from Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow Airport?

Accepted Answer

There are 3 operators available for flights from Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow Airport as of February 2026.

Question 18

How old do you have to be to fly from Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow Airport?

Accepted Answer

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow Airport.

Question 19

What documentation or ID do you need to fly to London Heathrow Airport?

Accepted Answer

The necessary travel and health documents for your London Heathrow Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Best price found	£446
Fastest flight time	6h 40m
Direct flights	Every day

Airline	Rating	Free Cancellation	Price
Air Canada	PriceFrom £396	Free Cancellation	Rating 7.1 10,684 reviews	Search Air Canada flights
British Airways	PriceFrom £403	Free Cancellation	Rating 6.7 7,712 reviews	Search British Airways flights
Lufthansa	PriceFrom £438	Free Cancellation	Rating 6.8 7,759 reviews	Search Lufthansa flights

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How to get the cheapest flight ticket from Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow Airport

What is the cheapest month to fly to London Heathrow Airport?

What is the cheapest day to depart on your flight to London Heathrow Airport?

What is the cheapest time of day to depart on your flight to London Heathrow Airport?

What is the cheapest Montreal Pierre Elliott Trudeau Intl to London Heathrow flight route?

Fly from Montreal Pierre Elliott Trudeau Intl to London Heathrow for the best Montreal Pierre Elliott Trudeau Intl - London Heathrow flight prices

How far in advance should I book a flight to London Heathrow Airport?

What cabin class options are available on Montreal Pierre Elliott Trudeau Intl to London Heathrow flights?

There are 3 cabin classes available to choose from on Montreal Pierre Elliott Trudeau Intl to London Heathrow flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow Airport flights?

You could potentially save up to 50% on your flight if you consider stops on a Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow Airport flight.

How have Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow Airport flight prices changed over time?

As of February 2026, prices for Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow Airport flights are approximately 20% more expensive when compared to flights at the same time last year.

Which airlines fly to London Heathrow Airport?

How often are flights from Montreal to London delayed?

Historically, on average around 24% of flights between Montreal and London have experienced a delay on any given week. The average delay length over the past 12 months has been 164 minutes.

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

Generally, flights departing in the morning tend to experience fewer delays. Flights departing in the evening have, in the past, seen delays more frequently in comparison.

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

Wednesday is statistically the day of the week that experiences the fewest delays on this flight route. Saturday has historically seen more delays on average compared to the rest of the week.

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

According to our data, Air Canada have had the fewest delays on this route over the last 12 months, with about 23% of their flights experiencing any sort of delay.

How many flights depart from Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow Airport on average per day?

The number of flights available between Montreal Pierre Elliott Trudeau Intl Airport and London Heathrow Airport is 9 per day as of February 2026. The most frequent departure time is 19:00, with 100% of daily flights leaving in the evening.

How many flights depart from Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow Airport on average per week?

As of February 2026, there are 66 flights per week flying from Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow Airport. The most common day of the week flights depart is Mon, with 18% of flights taking off on this day.

When to book flights from Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow Airport

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How old do you have to be to fly from Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow Airport?

What documentation or ID do you need to fly to London Heathrow Airport?

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What is the most popular airline from Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow Airport?

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