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 Porto 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.
NantesNTE · France42−50 %2 bookable
BordeauxBOD · France39−50 %1 bookable
LyonLYS · France36−50 %2 bookable
NiceNCE · France32−50 %seen Nov 7
ToulouseTLS · France26−50 %1 bookable
MarseilleMRS · France22−50 %2 bookable
StrasbourgSXB · France18−50 %1 bookable
CharleroiCRL · Belgium15−50 %seen Nov 7
MontrealYUL · Canada14−50 %seen Sep 24
AmsterdamAMS · Netherlands12−40 %seen Oct 10
RomeFCO · Italy10−50 %seen Nov 1
MontpellierMPL · France9−50 %1 bookable
LilleLIL · France7−50 %1 bookable
NewarkEWR · United States7−30 %seen Nov 2
KelownaYLW · Canada5−40 %seen Nov 3
BostonBOS · United States5−30 %seen Oct 23
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.