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 British Airways. They are 91% cheaper than United Airlines. (Average prices, based on 486 datapoints.)
At Frankfurt the most flights depart around 18:00. (Hourly flights, based on 1056 datapoints.)
From Frankfurt it is on average the cheapest to fly to Paris and to Amsterdam. (Average prices, based on 166 datapoints.)
From Frankfurt most of the flights depart to London, second best connected from Frankfurt is Munich. (Daily flights, based on 139 datapoints.)