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 Des Moines 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.
Las VegasLAS · United States19−50 %seen Nov 5
DenverDEN · United States15−50 %seen Nov 3
BostonBOS · United States10−50 %seen Nov 7
PhiladelphiaPHL · United States9−50 %seen Oct 29
PhoenixPHX · United States7−40 %seen Nov 4
NewarkEWR · United States5−50 %1 bookable
MinneapolisMSP · United States4−30 %seen Nov 7
Los AngelesLAX · United States2−40 %seen Oct 25
SeattleSEA · United States2−40 %seen Oct 23
San FranciscoSFO · United States2−40 %seen Oct 1
ChicagoORD · United States2−30 %seen Oct 29
Fort LauderdaleFLL · United States1−50 %seen Oct 28
MiamiMIA · United States1−50 %seen Oct 29
San DiegoSAN · United States1−50 %seen Oct 25
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.