Altius recorded 193 priced readings of nonstop business-class round trips from Chicago (ORD) to Los Cabos (SJD) booked 60 days out, across 128 departure dates between 2026-05-20 and 2026-10-05. Observed fares ran from US$1,283 to US$4,765. The lowest fare Altius scored on this window was US$1,325 for a 2026-11-27 departure, seen on 2026-09-28 — DECENT at the time, 13.2% below the US$1,526 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.