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 Bilbao 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.
ParisCDG · France42−50 %1 bookable
RomeFCO · Italy31−50 %1 bookable
ParisORY · France28−50 %seen Nov 7
LisbonLIS · Portugal20−50 %seen Nov 7
BarcelonaBCN · Spain20−40 %1 bookable
BrusselsBRU · Belgium11−50 %seen Nov 7
LondonLHR · United Kingdom11−50 %1 bookable
MadridMAD · Spain5−50 %seen Nov 3
StrasbourgSXB · France5−40 %seen Nov 7
VancouverYVR · Canada4−50 %seen Oct 30
AmsterdamAMS · Netherlands4−30 %1 bookable
PhoenixPHX · United States3−50 %seen Sep 29
PhiladelphiaPHL · United States2−30 %seen Oct 14
WashingtonIAD · United States1−40 %seen Nov 1
San DiegoSAN · United States1−40 %seen Sep 28
TorontoYYZ · Canada1−40 %seen Oct 10
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 October.