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 Boston 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.
WinnipegYWG · Canada19−40 %seen Oct 27
San DiegoSAN · United States18−50 %1 bookable
WashingtonIAD · United States18−40 %seen Nov 5
ReginaYQR · Canada10−40 %seen Oct 27
Fort LauderdaleFLL · United States10−30 %seen Nov 5
VictoriaYYJ · Canada9−50 %seen Oct 27
EdmontonYEG · Canada9−40 %seen Oct 27
MiamiMIA · United States9−30 %seen Oct 27
SaskatoonYXE · Canada8−40 %seen Oct 23
MinneapolisMSP · United States8−20 %seen Nov 1
OrlandoMCO · United States7−50 %seen Oct 28
KelownaYLW · Canada7−40 %seen Oct 27
RomeFCO · Italy7−30 %seen Nov 2
LisbonLIS · Portugal7−30 %seen Nov 3
MontrealYUL · Canada6−40 %seen Oct 28
VancouverYVR · Canada6−40 %seen Oct 31
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.