Question 1

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

Accepted Answer

Air Serbia and KLM are the most popular carriers operating from London Heathrow to Istanbul

Question 2

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

Accepted Answer

The number of flights available between London Heathrow Airport and Istanbul Airport is 234 per week as of December 2025. The most frequent departure day is Fri, with 18% of weekly flights leaving on this day.

Question 3

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

Accepted Answer

As of December 2025, prices for London Heathrow Airport to Istanbul Airport flights are approximately 1% more expensive when compared to flights at the same time last year.

Question 4

Can stopping save me money on London Heathrow Airport to Istanbul Airport flights?

Accepted Answer

You could potentially save up to 19% on your flight if you consider stops on a London Heathrow Airport to Istanbul Airport flight.

Question 5

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

Accepted Answer

You are more likely to see cheaper flights to Istanbul Airport from London Heathrow Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Istanbul Airport for around $447 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Istanbul Airport from London Heathrow Airport for as low as $402 on momondo.

Question 6

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

Accepted Answer

Tuesday 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 7

What is the cheapest London Heathrow to Istanbul flight route?

Accepted Answer

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

Question 8

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

Accepted Answer

At midday is the cheapest time of day to fly from London Heathrow Airport to Istanbul Airport when you can find flight prices for as low as $449. Flying to Istanbul Airport at midday is an ideal time because this is during off-peak travel hours. Flights to Istanbul Airport are more costly in the morning, with an average ticket price of $1,578. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

Question 9

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

Accepted Answer

The number of flights available between London Heathrow Airport and Istanbul Airport is 33 per day as of December 2025. The most frequent departure time is 16:00, with 39% of daily flights leaving at midday.

Question 10

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

Accepted Answer

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

Question 11

What is the cheapest month to fly to Istanbul Airport?

Accepted Answer

In general, January is the cheapest month to fly from London Heathrow Airport to Istanbul Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $317. If you don’t want to visit Istanbul Airport in January, then you should wait until March to fly from London Heathrow Airport, when ticket prices are also cheap, with an average price of $327.

Question 12

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

Accepted Answer

According to our data, British Airways have had the fewest delays on this route over the last 12 months, with about 10% of their flights experiencing any sort of delay.

Question 13

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

Accepted Answer

According to our data, Thursday is the cheapest day to fly to Istanbul Airport from London Heathrow Airport. The lowest ticket price found for a Thursday departure recently was $1,439. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. Be sure to avoid booking your departure on a Monday as prices are generally higher than usual. According to our data, the average ticket price to Istanbul Airport on Monday is $1,734.

Question 14

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

Accepted Answer

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

Question 15

How often are flights from London to Istanbul delayed?

Accepted Answer

Historically, on average around 11% of flights between London and Istanbul have experienced a delay on any given week. The average delay length over the past 12 months has been 129 minutes.

Question 16

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

Accepted Answer

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

Question 17

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

Accepted Answer

As of December 2025, there is 1 operator available to choose from for flights from London Heathrow Airport to Istanbul Airport.

Question 18

How old do you have to be to fly from London Heathrow Airport to Istanbul 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 stopovers 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 London Heathrow Airport to Istanbul Airport.

Question 19

What documentation or ID do you need to fly to Istanbul Airport?

Accepted Answer

The travel and health documents required for your trip to Istanbul Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s licence, and a passport valid for six-months after you plan to arrive at Istanbul Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

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How to get the cheapest flight ticket from London Heathrow Airport to Istanbul Airport

What is the cheapest month to fly to Istanbul Airport?

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

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

What is the cheapest London Heathrow to Istanbul flight route?

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

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

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

There are 3 cabin classes available to choose from on London Heathrow to Istanbul 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 London Heathrow Airport to Istanbul Airport flights?

You could potentially save up to 19% on your flight if you consider stops on a London Heathrow Airport to Istanbul Airport flight.

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

As of December 2025, prices for London Heathrow Airport to Istanbul Airport flights are approximately 1% more expensive when compared to flights at the same time last year.

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

Air Serbia and KLM are the most popular carriers operating from London Heathrow to Istanbul

How often are flights from London to Istanbul delayed?

Historically, on average around 11% of flights between London and Istanbul have experienced a delay on any given week. The average delay length over the past 12 months has been 129 minutes.

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

Generally, flights departing at night 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?

Tuesday 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 London to Istanbul flights?

According to our data, British Airways have had the fewest delays on this route over the last 12 months, with about 10% of their flights experiencing any sort of delay.

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

The number of flights available between London Heathrow Airport and Istanbul Airport is 33 per day as of December 2025. The most frequent departure time is 16:00, with 39% of daily flights leaving at midday.

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

The number of flights available between London Heathrow Airport and Istanbul Airport is 234 per week as of December 2025. The most frequent departure day is Fri, with 18% of weekly flights leaving on this day.

When to book flights from London Heathrow Airport to Istanbul Airport

Cheap London Heathrow Airport to Istanbul Airport (LHR to IST) flight deals and tips

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

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

What documentation or ID do you need to fly to Istanbul Airport?

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