Cheap flights from London to Istanbul from $109

The month of January is, on average, the cheapest month to fly to Istanbul from London, with most prices found around $247. The month of February is another great option to travel to Istanbul, with average flight prices from London averaging around $262.

The cheapest day to depart on your flight to Istanbul is on a Sunday when prices can be found for as low as $1,260. This is often the case because there is less demand to fly during this day of the week. When flying out on a Monday, the most expensive travel day of the week, you can expect to see flight prices from London to Istanbul for around $1,544.

At midday is the cheapest time of day to fly from London to Istanbul when you can find flight prices for as low as $291. Flying to Istanbul at midday is an ideal time because this is during off-peak travel hours. Try not to purchase tickets in the morning because they tend to be around $1,486. Of course, these prices can vary depending on the time of year and what airport you fly to.

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

You are more likely to see cheaper flights to Istanbul from London when booking weeks ahead of your departure date. In general, you can expect to find flights to Istanbul for around $473 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Istanbul from London for as low as $430 on momondo.

There are 2 cabin classes available to choose from on London to Istanbul flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Historically, on average around 12% 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 123 minutes.

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.

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.

According to our data, Turkish Airlines have had the fewest delays on this route over the last 12 months, with about 9% of their flights experiencing any sort of delay.

As of November 2026, there are 42 flights per day flying from London to Istanbul. The most common time of day flights depart is 17:00, with 47% of flights taking off in the afternoon.

As of November 2026, there are 299 flights per week flying from London to Istanbul. The most common day of the week flights depart is Wed, with 25% of flights taking off on this day.