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 Séoul 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.
Los AngelesLAX · United States11−30 %seen Nov 4
CalgaryYYC · Canada11−30 %1 bookable
WashingtonIAD · United States10−40 %seen Nov 7
MontrealYUL · Canada9−40 %seen Nov 6
AtlantaATL · United States9−30 %seen Nov 5
NewarkEWR · United States7−30 %seen Nov 7
MadridMAD · Spain7−30 %seen Oct 24
WinnipegYWG · Canada6−40 %seen Nov 5
OttawaYOW · Canada5−40 %seen Nov 1
Thunder BayYQT · Canada5−40 %seen Nov 8
Quebec CityYQB · Canada5−30 %seen Oct 14
TorontoYYZ · Canada5−30 %seen Nov 1
AbbotsfordYXX · Canada4−50 %seen Oct 27
San FranciscoSFO · United States4−40 %seen Nov 3
WaterlooYKF · Canada4−40 %seen Nov 6
HalifaxYHZ · Canada4−30 %seen Nov 5
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.