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 Tokyo 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.
LondonLHR · United Kingdom15−30 %seen Nov 8
HoustonIAH · United States13−40 %seen Nov 1
AbbotsfordYXX · Canada12−40 %seen Oct 23
VancouverYVR · Canada10−50 %seen Nov 2
BrusselsBRU · Belgium9−30 %1 bookable
ChicagoORD · United States6−30 %seen Oct 31
ReginaYQR · Canada6−30 %seen Nov 4
New YorkJFK · United States6−20 %seen Nov 2
Thunder BayYQT · Canada5−40 %seen Nov 6
San FranciscoSFO · United States5−30 %seen Nov 4
VictoriaYYJ · Canada5−30 %seen Nov 2
Los AngelesLAX · United States4−30 %seen Oct 30
RomeFCO · Italy4−20 %seen Nov 3
MinneapolisMSP · United States4−20 %seen Oct 29
KelownaYLW · Canada3−30 %seen Nov 3
St. John'sYYT · Canada3−30 %seen Nov 4
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.