Please be aware that Istanbul has multiple airports and that these results are for all airports serving the city.
The best month to fly between Istanbul and Antalya is September and the most expensive month to fly is May. (Average prices, based on 267 datapoints.)
The best day to arrive at Istanbul is Saturday and it would be best to avoid Thursday, as prices are on average 268.07% higher than on Saturday. (Average prices, based on 291 datapoints.)
The cheapest airline flying from Istanbul to Antalya is Pegasus Airlines. They are 42% cheaper than Turkish Airlines. (Average prices, based on 294 datapoints.)
The best time to fly is at around 15. (Average prices, based on 385 datapoints.)