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 Pékin 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 · Canada6−40 %seen Nov 2
San FranciscoSFO · United States5−30 %seen Nov 3
MadridMAD · Spain5−20 %1 bookable
WashingtonIAD · United States4−30 %seen Oct 24
TorontoYYZ · Canada4−20 %seen Oct 23
MonctonYQM · Canada3−30 %seen Nov 3
TorontoYTZ · Canada3−30 %seen Oct 1
St. John'sYYT · Canada2−30 %seen Nov 6
RomeFCO · Italy2−20 %seen Oct 25
LisbonLIS · Portugal2−20 %seen Sep 20
LondonLHR · United Kingdom1−40 %seen Oct 30
BarcelonaBCN · Spain1−20 %seen Sep 19
BrusselsBRU · Belgium1−20 %seen Nov 3
ParisCDG · France1−20 %seen Sep 21
ReginaYQR · Canada1−20 %seen Oct 3
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.