Cheap flights from London to Istanbul from £45

The month of January is, on average, the cheapest month to fly to Istanbul from London, with most prices found around £102. If you aren’t able to travel to Istanbul during the month of January, then flying in November is also cheap. Prices for this month can be found on momondo for an average of £104.

On average, the least expensive day to fly to Istanbul from London is on a Monday. momondo users have found tickets for Monday departures for as low as £535. However, this price may fluctuate depending on the airline, the season, and holidays. Flights from London to Istanbul on a Saturday will generally be more expensive and average around £569. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

Flying to Istanbul from London at midday is the least expensive time of day to depart. momondo users have found prices as low as £245 when looking at flights departing at midday. Flights to Istanbul are more costly in the afternoon, with an average ticket price of £575. Departure times in the afternoon fall within the peak daily travel times, which is why tickets can be more expensive.

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 £233 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 £191 on momondo.

There are 3 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.

Wizz Air, Pegasus Airlines, and British Airways are the most popular carriers operating from London to Istanbul

Turkish Airlines, Wizz Air and British Airways are the top three most popular airlines that fly to Istanbul from London according to our data. Turkish Airlines is the first choice among our users, with 38% of people opting to fly with this airline when travelling to Istanbul. Keep in mind that there are 13 different airlines that fly to Istanbul on a routine basis, so you have a few additional options to choose from.

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 126 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.

59 flights are operational daily from London to Istanbul as of May 2026. The most popular departure time for this route is 16:00, with 39% of flights per day taking off in the afternoon.

As of May 2026, 413 flights take off from London and land in Istanbul each week. The most common flight departure day for this route is Mon, with 19% of weekly flights taking off on this day.