Altius recorded 130 priced readings of nonstop business-class round trips from Frankfurt (FRA) to San José (SJO) booked 90 days out, across 66 departure dates between 2026-06-21 and 2026-10-04. Observed fares ran from US$4,152 to US$9,883. The lowest fare Altius scored on this window was US$4,282 for a 2026-12-13 departure, seen on 2026-09-14 — DECENT at the time, 12.4% below the US$4,888 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.