Altius recorded 195 priced readings of nonstop business-class round trips from Atlanta (ATL) to Santiago (SCL) booked 30 days out, across 98 departure dates between 2026-06-29 and 2026-10-05. Observed fares ran from US$4,509 to US$15,501. The lowest fare Altius scored on this window was US$4,509 for a 2026-07-30 departure, seen on 2026-06-30 — STRONG at the time, 15.5% below the US$5,336 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.