Please be aware that Berlin has multiple airports and that these results are only for Flughafen Berlin Brandenburg.
At Berlin the most flights depart around 09:00. (Hourly flights, based on 227 datapoints.)
From Berlin it is on average the cheapest to fly to Brussels and to Istanbul. (Average prices, based on 117 datapoints.)
From Berlin most of the flights depart to Antalya, second best connected from Berlin is Amsterdam. (Daily flights, based on 102 datapoints.)