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 London 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.
Fort LauderdaleFLL · United States6−50 %1 bookable
OrlandoMCO · United States4−50 %1 bookable
SaskatoonYXE · Canada4−40 %seen Oct 9
MonctonYQM · Canada4−30 %seen Sep 29
Quebec CityYQB · Canada3−30 %seen Oct 1
ReginaYQR · Canada2−40 %seen Oct 9
TorontoYYZ · Canada2−30 %seen Nov 5
San DiegoSAN · United States1−40 %seen Oct 23
KelownaYLW · Canada1−30 %seen Oct 3
HalifaxYHZ · Canada1−20 %seen Sep 19
OttawaYOW · Canada1−20 %seen Sep 21
WinnipegYWG · Canada1−20 %seen Sep 27
CalgaryYYC · Canada1−20 %seen Oct 28
VictoriaYYJ · Canada1−20 %seen Oct 20
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.