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 Columbus 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.
WashingtonIAD · United States24−50 %1 bookable
AtlantaATL · United States22−50 %1 bookable
Fort LauderdaleFLL · United States22−50 %seen Nov 7
DenverDEN · United States21−50 %1 bookable
PhiladelphiaPHL · United States15−50 %seen Nov 7
HoustonIAH · United States13−50 %seen Nov 5
DallasDFW · United States12−50 %seen Nov 5
MiamiMIA · United States12−50 %1 bookable
ChicagoORD · United States12−40 %seen Nov 7
San DiegoSAN · United States11−40 %seen Nov 3
MinneapolisMSP · United States10−50 %seen Nov 2
Las VegasLAS · United States9−40 %seen Nov 1
PhoenixPHX · United States8−50 %seen Nov 1
OrlandoMCO · United States8−40 %seen Nov 7
San FranciscoSFO · United States5−50 %seen Nov 4
NewarkEWR · United States5−30 %seen Nov 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.