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 January and the most expensive month to fly is August. (Average prices, based on 750 datapoints.)
The best day to arrive at Frankfurt is Sunday and it would be best to avoid Wednesday, as prices are on average 30.1% higher than on Sunday. (Average prices, based on 637 datapoints.)
The cheapest airline flying to Frankfurt is British Airways. They are 90% cheaper than Singapore Airlines. (Average prices, based on 781 datapoints.)
At Frankfurt the most flights depart around 17:00. (Hourly flights, based on 841 datapoints.)
From Frankfurt it is on average the cheapest to fly to London and to Stockholm. (Average prices, based on 410 datapoints.)