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 March and the most expensive month to fly is April. (Average prices, based on 855 datapoints.)
The best day to arrive at Istanbul is Sunday and it would be best to avoid Friday, as prices are on average 44.79% higher than on Sunday. (Average prices, based on 813 datapoints.)
The cheapest airline flying to Istanbul is ValuAir. They are 57% cheaper than Nas Air. (Average prices, based on 876 datapoints.)