Cheap flights from London to Istanbul from $66

In general, January is the cheapest month to fly from London to Istanbul Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $155. If you don’t want to visit Istanbul Airport in January, then you should wait until November to fly from London, when ticket prices are also cheap, with an average price of $155.

According to our data, Sunday is the cheapest day to fly to Istanbul Airport from London. The lowest ticket price found for a Sunday departure recently was $1,240. 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 $1,692.

At midday is the cheapest time of day to fly from London to Istanbul Airport when you can find flight prices for as low as $421. 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 evening, with an average ticket price of $1,733. Departure times in the evening 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 Airport from London when booking weeks ahead of your departure date. In general, you can expect to find flights to Istanbul Airport for around $434 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 for as low as $370 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.

No. A direct flight is the cheapest option for a flight between London to Istanbul Airport.

As of March 2026, prices for London to Istanbul Airport flights are approximately 22% more expensive when compared to flights at the same time last year.

Historically, on average around 10% 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 134 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.

39 flights are operational daily from London to Istanbul Airport as of March 2026. The most popular departure time for this route is 17:00, with 44% of flights per day taking off in the afternoon.

The number of flights available between London and Istanbul Airport is 277 per week as of March 2026. The most frequent departure day is Mon, with 22% of weekly flights leaving on this day.