Altius recorded 211 priced readings of nonstop business-class round trips from Frankfurt (FRA) to Singapore (SIN) booked 90 days out, across 107 departure dates between 2026-06-21 and 2026-10-05. Observed fares ran from US$4,396 to US$10,778. The lowest fare Altius scored on this window was US$4,410 for a 2026-09-30 departure, seen on 2026-07-02 — DECENT at the time, 13.2% below the US$5,081 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.