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 Oulu 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.
FrankfurtFRA · Germany8−50 %seen Oct 27
AmsterdamAMS · Netherlands5−50 %seen Oct 4
ParisCDG · France4−50 %seen Oct 4
BrusselsBRU · Belgium3−50 %seen Oct 6
LondonLHR · United Kingdom2−40 %seen Oct 2
San DiegoSAN · United States2−40 %1 bookable
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.