Please be aware that Istanbul has multiple airports and that these results are for all airports serving the city.
The best month to arrive at Istanbul is November and the most expensive month to fly is August. (Average prices, based on 4034 datapoints.)
The best day to arrive at Istanbul is Monday and it would be best to avoid Friday, as prices are on average 25.78% higher than on Monday. (Average prices, based on 3881 datapoints.)
The cheapest airline flying to Istanbul is Pegasus Airlines. They are 68% cheaper than Egyptair. (Average prices, based on 4362 datapoints.)
At Istanbul the most flights depart around 13:00. (Hourly flights, based on 4673 datapoints.)
From Istanbul it is on average the cheapest to fly to Antalya and to Dusseldorf. (Average prices, based on 691 datapoints.)
From Istanbul most of the flights depart to Dubai, second best connected from Istanbul is London. (Daily flights, based on 122 datapoints.)