Please be aware that Frankfurt has multiple airports and that these results are only for Frankfurt Airport.
The best month to arrive at Frankfurt is November and the most expensive month to fly is June. (Average prices, based on 328 datapoints.)
The best day to arrive at Frankfurt is Sunday and it would be best to avoid Monday, as prices are on average 58.96% higher than on Sunday. (Average prices, based on 618 datapoints.)
The cheapest airline flying to Frankfurt is Croatia Airlines. They are 88% cheaper than Air China. (Average prices, based on 472 datapoints.)
At Frankfurt the most flights depart around 18:00. (Hourly flights, based on 915 datapoints.)
From Frankfurt it is on average the cheapest to fly to Athens and to Amsterdam. (Average prices, based on 104 datapoints.)
From Frankfurt most of the flights depart to Berlin, second best connected from Frankfurt is Milan. (Daily flights, based on 121 datapoints.)