Over twelve months: where the drops came from, how often, and how far. Past deals are no longer bookable and so are not links — what they add here is the pattern.
Where the deals to Francfort-sur-le-Main came from
The bar says how often a drop has been proven from that airport over twelve months. The badge says how far the price fell.
BarcelonaBCN · Spain4−30 %seen Oct 4
SaskatoonYXE · Canada3−40 %1 bookable
MontrealYUL · Canada2−40 %seen Sep 18
BrusselsBRU · Belgium1−20 %seen Oct 6
HalifaxYHZ · Canada1−20 %seen Sep 21
When the deals show up
A bar’s height is the number of drops spotted that month, its colour the month’s best discount. The tallest is September.