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 October and the most expensive month to fly is August. (Average prices, based on 829 datapoints.)
The best day to arrive at Frankfurt is Wednesday and it would be best to avoid Friday, as prices are on average 72.04% higher than on Wednesday. (Average prices, based on 719 datapoints.)
The cheapest airline flying to Frankfurt is Aegean Airlines. They are 67% cheaper than SunExpress. (Average prices, based on 1063 datapoints.)
At Frankfurt the most flights depart around 14:00. (Hourly flights, based on 1325 datapoints.)
From Frankfurt it is on average the cheapest to fly to Paris and to Athens. (Average prices, based on 361 datapoints.)
From Frankfurt most of the flights depart to Munich, second best connected from Frankfurt is Barcelona. (Daily flights, based on 86 datapoints.)