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 Billund 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 · France4−20 %seen Sep 20
PhiladelphiaPHL · United States3−40 %seen Oct 2
San DiegoSAN · United States2−30 %1 bookable
BarcelonaBCN · Spain2−20 %seen Sep 23
DallasDFW · United States1−40 %seen Oct 6
NewarkEWR · United States1−40 %seen Sep 21
LondonLHR · United Kingdom1−40 %seen Oct 17
EdmontonYEG · Canada1−40 %seen Oct 22
MontrealYUL · Canada1−40 %seen Sep 17
CalgaryYYC · Canada1−40 %seen Oct 30
TorontoYYZ · Canada1−40 %seen Oct 14
BostonBOS · United States1−30 %seen Sep 23
BrusselsBRU · Belgium1−20 %seen Oct 25
RomeFCO · Italy1−20 %seen Sep 19
NiceNCE · France1−20 %seen Oct 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.