Altius recorded 87 priced readings of nonstop business-class round trips from Rome (FCO) to Tokyo (HND) booked 90 days out, across 44 departure dates between 2026-08-19 and 2026-10-05. Observed fares ran from US$3,244 to US$8,241. The lowest fare Altius scored on this window was US$3,244 for a 2026-11-30 departure, seen on 2026-09-01 — RARE at the time, 38.9% below the US$5,309 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.