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 3753 datapoints.)
The best day to arrive at Istanbul is Monday and it would be best to avoid Friday, as prices are on average 18.57% higher than on Monday. (Average prices, based on 3722 datapoints.)
The cheapest airline flying to Istanbul is Air Arabia. They are 71% cheaper than Emirates. (Average prices, based on 3826 datapoints.)
At Istanbul the most flights depart around 09:00. (Hourly flights, based on 3951 datapoints.)
From Istanbul it is on average the cheapest to fly to Frankfurt and to Dusseldorf. (Average prices, based on 1857 datapoints.)
From Istanbul most of the flights depart to Amsterdam, second best connected from Istanbul is Dubai. (Daily flights, based on 86 datapoints.)