Altius recorded 114 priced readings of nonstop business-class round trips from Frankfurt (FRA) to San José (SJO) booked 60 days out, across 58 departure dates between 2026-06-21 and 2026-10-05. Observed fares ran from US$4,152 to US$10,129. The lowest fare Altius scored on this window was US$4,256 for a 2026-11-15 departure, seen on 2026-09-16 — DECENT at the time, 12.7% below the US$4,875 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.