Please be aware that Frankfurt has multiple airports and that these results are for all airports serving the city.
The best month to arrive at Frankfurt is October and the most expensive month to fly is August. (Average prices, based on 748 datapoints.)
The best day to arrive at Frankfurt is Monday and it would be best to avoid Tuesday, as prices are on average 28.15% higher than on Monday. (Average prices, based on 727 datapoints.)
The cheapest airline flying to Frankfurt is Air Europa. They are 74% cheaper than Emirates. (Average prices, based on 899 datapoints.)
At Frankfurt the most flights depart around 18:00. (Hourly flights, based on 985 datapoints.)
From Frankfurt it is on average the cheapest to fly to Paris and to Amsterdam. (Average prices, based on 512 datapoints.)
From Frankfurt most of the flights depart to Munich, second best connected from Frankfurt is Barcelona. (Daily flights, based on 60 datapoints.)