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 3966 datapoints.)
The best day to arrive at Istanbul is Tuesday and it would be best to avoid Friday, as prices are on average 22.26% higher than on Tuesday. (Average prices, based on 1891 datapoints.)
The cheapest airline flying to Istanbul is Pegasus Airlines. They are 92% cheaper than Qatar Airways. (Average prices, based on 4055 datapoints.)
At Istanbul the most flights depart around 10:00. (Hourly flights, based on 4172 datapoints.)
From Istanbul it is on average the cheapest to fly to Ankara and to Izmir. (Average prices, based on 1086 datapoints.)
From Istanbul most of the flights depart to Amsterdam, second best connected from Istanbul is Paris. (Daily flights, based on 67 datapoints.)