Please be aware that Istanbul has multiple airports and that these results are only for Sabiha Gökcen International Airport.
The best month to arrive at Istanbul is January and the most expensive month to fly is April. (Average prices, based on 1599 datapoints.)
The best day to arrive at Istanbul is Wednesday and it would be best to avoid Friday, as prices are on average 41.46% higher than on Wednesday. (Average prices, based on 1481 datapoints.)
The cheapest airline flying to Istanbul is Pegasus Airlines. They are 78% cheaper than Turkish Airlines. (Average prices, based on 1671 datapoints.)
At Istanbul the most flights depart around 12:00. (Hourly flights, based on 1795 datapoints.)
From Istanbul it is on average the cheapest to fly to Ankara and to Antalya. (Average prices, based on 374 datapoints.)
From Istanbul most of the flights depart to Antalya, second best connected from Istanbul is Ankara. (Daily flights, based on 81 datapoints.)