Cheap flights from Istanbul to London from $55

The cheapest month to fly to London from Istanbul is in February. Flight prices, which tend to average around $31, are often lower during this time because this is during the off-season. The month of July is another great option to travel to London, with average flight prices from Istanbul averaging around $35.

The cheapest day to depart from Istanbul to London is on a Monday. Travelers who choose to depart for London on a Monday will often find tickets for as low as $593. If your travel schedule is flexible, try to avoid departing on a Saturday because tickets tend to average around $687. These prices are subject to change though, so be sure to set up a Price Alert for flights to London.

Flying to London from Istanbul in the evening is the least expensive time of day to depart. momondo users have found prices as low as $206 when looking at flights departing in the evening. Flights to London are more costly in the morning, with an average ticket price of $667. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

Fly from Istanbul Sabiha Gokcen to London Stansted for the best Istanbul - London flight prices

You are more likely to see cheaper flights to London from Istanbul when booking weeks ahead of your departure date. In general, you can expect to find flights to London for around $306 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London from Istanbul for as low as $222 on momondo.

British Airways, KLM, and Vueling are the most popular carriers operating from Istanbul to London

Turkish Airlines, British Airways and Wizz Air are the top three most popular airlines that fly to London from Istanbul according to our data. Turkish Airlines is the first choice among our users, with 43% of people opting to fly with this airline when traveling to London. Keep in mind that there are 5 different airlines that fly to London on a routine basis, so you have a few additional options to choose from.

Historically, on average around 17% of flights between Istanbul and London have experienced a delay on any given week. The average delay length over the past 12 months has been 108 minutes.

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

Tuesday is statistically the day of the week which experiences the fewest number of delays on this flight route. Sunday has historically seen more delays on average compared to the rest of the week.

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

As of May 2026, there are 46 flights per day flying from Istanbul to London. The most common time of day flights depart is 7:00AM, with 41% of flights taking off at noon.

324 flights are operational weekly from Istanbul to London as of May 2026. The most popular departure day for this route is Sun, with 17% of flights per week taking off on this day.