Please be aware that Istanbul has multiple airports and that these results are only for Istanbul Atatürk Airport.
The best month to arrive at Istanbul is November and the most expensive month to fly is August. (Average prices, based on 3332 datapoints.)
The best day to arrive at Istanbul is Tuesday and it would be best to avoid Friday, as prices are on average 15.99% higher than on Tuesday. (Average prices, based on 3396 datapoints.)
The cheapest airline flying to Istanbul is Aegean Airlines. They are 57% cheaper than Saudi Arabian Airlines. (Average prices, based on 3581 datapoints.)
At Istanbul the most flights depart around 10:00. (Hourly flights, based on 3881 datapoints.)
From Istanbul it is on average the cheapest to fly to Antalya and to Vienna. (Average prices, based on 257 datapoints.)
From Istanbul most of the flights depart to Antalya, second best connected from Istanbul is Izmir. (Daily flights, based on 113 datapoints.)