Altius recorded 287 priced readings of nonstop business-class round trips from Miami (MIA) to Cartagena (CTG) booked 30 days out, across 131 departure dates between 2026-05-20 and 2026-10-05. Observed fares ran from US$781 to US$6,143. The lowest fare Altius scored on this window was US$781 for a 2026-08-11 departure, seen on 2026-07-12 — IMPRESSIVE at the time, 28.6% below the US$1,094 this route was typically running that day.
A fare can move between our two readings of the same day, most often on the days furthest below typical. Where a day's two readings differ enough to matter, the chart marks that day and both readings can be read separately.