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 Salzbourg 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.
AmsterdamAMS · Netherlands6−40 %seen Oct 30
ChicagoORD · United States2−40 %seen Oct 31
BostonBOS · United States2−30 %1 bookable
VancouverYVR · Canada1−50 %seen Oct 10
San DiegoSAN · United States1−40 %seen Nov 8
WashingtonIAD · United States1−30 %seen Nov 6
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.