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 Saint-Louis 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.
DenverDEN · United States30−50 %1 bookable
ChicagoORD · United States30−50 %1 bookable
MinneapolisMSP · United States28−50 %seen Nov 7
AtlantaATL · United States25−50 %1 bookable
Los AngelesLAX · United States19−50 %seen Nov 7
DallasDFW · United States14−50 %seen Oct 31
Fort LauderdaleFLL · United States12−50 %seen Nov 7
WashingtonIAD · United States12−40 %1 bookable
San DiegoSAN · United States10−40 %seen Nov 4
MiamiMIA · United States10−30 %seen Nov 5
HoustonIAH · United States8−50 %seen Nov 1
PhoenixPHX · United States8−40 %seen Oct 31
San FranciscoSFO · United States8−40 %seen Nov 7
BostonBOS · United States8−30 %1 bookable
PhiladelphiaPHL · United States7−50 %seen Nov 1
OrlandoMCO · United States6−40 %seen Nov 1
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.