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 Knoxville 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.
NewarkEWR · United States26−50 %2 bookable
OrlandoMCO · United States26−50 %2 bookable
PhiladelphiaPHL · United States25−50 %1 bookable
BostonBOS · United States20−50 %1 bookable
WashingtonIAD · United States18−50 %2 bookable
Las VegasLAS · United States18−50 %1 bookable
Fort LauderdaleFLL · United States16−50 %seen Nov 7
PhoenixPHX · United States14−40 %seen Nov 7
AtlantaATL · United States8−50 %seen Nov 3
DenverDEN · United States6−50 %seen Nov 1
DallasDFW · United States6−30 %seen Nov 4
MiamiMIA · United States3−50 %seen Oct 28
San FranciscoSFO · United States3−40 %seen Oct 21
MinneapolisMSP · United States3−30 %seen Oct 21
Los AngelesLAX · United States1−30 %seen Oct 7
SeattleSEA · United States1−30 %seen Oct 5
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.