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 Hanovre 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.
HoustonIAH · United States3−40 %seen Sep 27
BarcelonaBCN · Spain2−50 %seen Oct 25
CalgaryYYC · Canada2−50 %seen Oct 23
DenverDEN · United States2−40 %1 bookable
New YorkJFK · United States1−40 %seen Sep 20
NiceNCE · France1−40 %seen Sep 21
TorontoYYZ · Canada1−40 %seen Sep 21
DallasDFW · United States1−30 %seen Oct 20
NewarkEWR · United States1−30 %seen Sep 25
PhiladelphiaPHL · United States1−30 %seen Sep 27
SeattleSEA · United States1−30 %seen Sep 30
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.