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 Birmingham 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.
ParisCDG · France45−50 %1 bookable
LisbonLIS · Portugal21−50 %1 bookable
MadridMAD · Spain18−50 %1 bookable
RomeFCO · Italy15−50 %seen Nov 7
AmsterdamAMS · Netherlands11−30 %seen Nov 2
BarcelonaBCN · Spain10−50 %seen Nov 6
BordeauxBOD · France7−50 %seen Oct 16
EdmontonYEG · Canada5−30 %1 bookable
NiceNCE · France4−50 %seen Oct 31
ToulouseTLS · France3−50 %seen Oct 9
WinnipegYWG · Canada1−50 %seen Oct 10
MontrealYUL · Canada1−40 %seen Sep 30
LyonLYS · France1−20 %seen Oct 17
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.