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 Hangzhou 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.
VancouverYVR · Canada5−40 %seen Oct 24
PhiladelphiaPHL · United States4−40 %1 bookable
AtlantaATL · United States2−40 %seen Oct 15
San DiegoSAN · United States2−40 %seen Oct 28
San FranciscoSFO · United States2−40 %seen Oct 21
MontrealYUL · Canada2−40 %seen Nov 5
TorontoYYZ · Canada2−30 %seen Nov 5
BostonBOS · United States1−40 %seen Oct 22
MinneapolisMSP · United States1−40 %seen Oct 15
CalgaryYYC · Canada1−30 %seen Oct 28
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.