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 Prague 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 · France29−50 %2 bookable
BordeauxBOD · France27−50 %1 bookable
NiceNCE · France23−50 %1 bookable
LyonLYS · France21−50 %1 bookable
MarseilleMRS · France21−50 %1 bookable
CharleroiCRL · Belgium11−50 %seen Nov 6
TorontoYYZ · Canada4−50 %seen Nov 5
ToulouseTLS · France4−30 %seen Oct 12
StrasbourgSXB · France2−40 %seen Oct 31
WinnipegYWG · Canada2−40 %seen Oct 16
TorontoYTZ · Canada2−30 %seen Oct 21
NewarkEWR · United States1−50 %seen Sep 20
EdmontonYEG · Canada1−50 %seen Nov 7
VancouverYVR · Canada1−50 %seen Oct 22
MinneapolisMSP · United States1−30 %seen Sep 23
ChicagoORD · United States1−30 %seen Sep 29
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.