Question 1

Which airline has the best punctuality record on Calgary 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 13% of their flights experiencing any sort of delay.

Question 2

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. Sunday has historically seen more delays on average compared to the rest of the week.

Question 3

Which airlines fly to London Heathrow Airport?

Accepted Answer

WestJet, Air Canada and Lufthansa are the top three most popular airlines that fly to London Heathrow Airport from Calgary according to our data. WestJet is the first choice among our users, with 55% 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 4

How many flights depart from Calgary to London Heathrow Airport on average per day?

Accepted Answer

The number of flights available between Calgary and London Heathrow Airport is 12 per day as of December 2025. The most frequent departure time is 18:00, with 100% of daily flights leaving in the evening.

Question 5

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

Accepted Answer

In general, November is the cheapest month to fly from Calgary to London Heathrow Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £411. The month of January is another great option to travel to London Heathrow Airport, with average flight prices from Calgary averaging around £413.

Question 6

How have Calgary to London Heathrow Airport flight prices changed over time?

Accepted Answer

As of December 2025, prices for Calgary to London Heathrow Airport flights are approximately 17% cheaper when compared to flights at the same time last year.

Question 7

How many flights depart from Calgary to London Heathrow Airport on average per week?

Accepted Answer

As of December 2025, there are 84 flights per week flying from Calgary to London Heathrow Airport. The most common day of the week flights depart is Mon, with 14% of flights taking off on this day.

Question 8

How often are flights from Calgary to London delayed?

Accepted Answer

Historically, on average around 17% of flights between Calgary and London have experienced a delay on any given week. The average delay length over the past 12 months has been 132 minutes.

Question 9

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 Calgary when booking weeks ahead of your departure date. In general, you can expect to find flights to London Heathrow Airport for around £573 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 Calgary for as low as £509 on momondo.

Question 10

What cabin class options are available on Calgary to London Heathrow flights?

Accepted Answer

There are 3 cabin classes available to choose from on Calgary 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 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 Calgary is on a Saturday. momondo users have found tickets for Saturday departures for as low as £580. However, this price may fluctuate depending on the airline, the season, and holidays. Be sure to avoid booking your departure on a Friday as prices are generally higher than usual. According to our data, the average ticket price to London Heathrow Airport on Friday is £761.

Question 12

What is the cheapest airline that flies from Calgary to London Heathrow?

Accepted Answer

WestJet is the most popular carrier operating from Calgary to London Heathrow

Question 13

What is the cheapest Calgary to London Heathrow flight route?

Accepted Answer

Fly from Calgary to London Heathrow for the best Calgary - London Heathrow flight prices

Question 14

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

Accepted Answer

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

Question 15

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 Calgary to London Heathrow Airport in the afternoon for as low as £625. 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 at midday when prices are £764 on average. Flights to London Heathrow Airport from Calgary at midday are generally more expensive because this time of day is more convenient for travellers’ schedules.

Question 16

When did momondo last update prices for flights from Calgary Airport to London Heathrow Airport?

Accepted Answer

Prices for flights from Calgary Airport to London Heathrow Airport were last updated today.

Question 17

How many operators does momondo search for flights from Calgary Airport to London Heathrow Airport?

Accepted Answer

The number of operators available for flights from Calgary Airport to London Heathrow Airport is 3 as of December 2025.

Question 18

How old do you have to be to fly from Calgary Airport to London Heathrow Airport?

Accepted Answer

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Calgary 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	£158
Fastest flight time	8h 40m
Direct flights	Every day

Airline	Rating	Free Cancellation	Price
WestJet	PriceFrom £323	Free Cancellation	Rating 7.2 3,195 reviews	Search WestJet flights
Air Canada	PriceFrom £418	Free Cancellation	Rating 7.1 10,517 reviews	Search Air Canada flights
Lufthansa	PriceFrom £421	Free Cancellation	Rating 6.8 7,626 reviews	Search Lufthansa flights

Cheap flights from Calgary to London from £126

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How to get the cheapest flight ticket from Calgary 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 Calgary to London Heathrow flight route?

Fly from Calgary to London Heathrow for the best Calgary - London Heathrow flight prices

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

What cabin class options are available on Calgary to London Heathrow flights?

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

How have Calgary to London Heathrow Airport flight prices changed over time?

As of December 2025, prices for Calgary to London Heathrow Airport flights are approximately 17% cheaper when compared to flights at the same time last year.

What is the cheapest airline that flies from Calgary to London Heathrow?

WestJet is the most popular carrier operating from Calgary to London Heathrow

Which airlines fly to London Heathrow Airport?

How often are flights from Calgary to London delayed?

Historically, on average around 17% of flights between Calgary and London have experienced a delay on any given week. The average delay length over the past 12 months has been 132 minutes.

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

Generally, flights departing in the evening tend to experience fewer delays. Flights departing in the early afternoon 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. Sunday has historically seen more delays on average compared to the rest of the week.

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

According to our data, Air Canada have had the fewest delays on this route over the last 12 months, with about 13% of their flights experiencing any sort of delay.

How many flights depart from Calgary to London Heathrow Airport on average per day?

The number of flights available between Calgary and London Heathrow Airport is 12 per day as of December 2025. The most frequent departure time is 18:00, with 100% of daily flights leaving in the evening.

How many flights depart from Calgary to London Heathrow Airport on average per week?

As of December 2025, there are 84 flights per week flying from Calgary to London Heathrow Airport. The most common day of the week flights depart is Mon, with 14% of flights taking off on this day.

When to book flights from Calgary to London Heathrow Airport

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When did momondo last update prices for flights from Calgary Airport to London Heathrow Airport?

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

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