Altius recorded 302 priced readings of nonstop business-class round trips from Miami (MIA) to Santiago (SCL) booked 90 days out, across 138 departure dates between 2026-05-20 and 2026-10-05. Observed fares ran from US$2,985 to US$10,861. The lowest fare Altius scored on this window was US$2,985 for a 2026-11-16 departure, seen on 2026-08-18 — IMPRESSIVE at the time, 29.4% below the US$4,228 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.