Altius recorded 42 priced readings of nonstop business-class round trips from Rome (FCO) to Tokyo (HND) booked 30 days out, across 22 departure dates between 2026-08-20 and 2026-10-05. Observed fares ran from US$4,056 to US$8,346. The lowest fare Altius scored on this window was US$5,151 for a 2026-11-04 departure, seen on 2026-10-05 — STRONG at the time, 20.3% below the US$6,463 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.