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 April and the most expensive month to fly is August. (Average prices, based on 805 datapoints.)
The best day to arrive at Frankfurt is Wednesday and it would be best to avoid Friday, as prices are on average 33.36% higher than on Wednesday. (Average prices, based on 729 datapoints.)
The cheapest airline flying to Frankfurt is Ryanair. They are 92% cheaper than Brussels Airlines. (Average prices, based on 977 datapoints.)
At Frankfurt the most flights depart around 08:00. (Hourly flights, based on 1169 datapoints.)
From Frankfurt it is on average the cheapest to fly to London and to Istanbul. (Average prices, based on 437 datapoints.)
From Frankfurt most of the flights depart to London, second best connected from Frankfurt is Munich. (Daily flights, based on 104 datapoints.)