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 Philadelphie 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.
AtlantaATL · United States34−50 %1 bookable
ChicagoORD · United States21−50 %1 bookable
HoustonIAH · United States16−40 %seen Nov 5
DallasDFW · United States13−40 %seen Nov 4
MinneapolisMSP · United States10−50 %seen Nov 2
DenverDEN · United States7−30 %seen Oct 30
MiamiMIA · United States6−40 %seen Nov 6
Las VegasLAS · United States5−50 %seen Oct 30
ReginaYQR · Canada5−20 %seen Oct 1
OrlandoMCO · United States4−40 %seen Oct 28
PhoenixPHX · United States4−30 %seen Oct 27
Los AngelesLAX · United States3−30 %seen Oct 27
LondonLHR · United Kingdom2−20 %seen Oct 16
SeattleSEA · United States2−20 %seen Oct 31
Fort LauderdaleFLL · United States1−20 %seen Sep 26
LisbonLIS · Portugal1−20 %seen Sep 20
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.