Altius recorded 303 priced readings of nonstop business-class round trips from San Francisco (SFO) to Sydney (SYD) booked 60 days out, across 138 departure dates between 2026-05-20 and 2026-10-05. Observed fares ran from US$5,915 to US$15,320. The lowest fare Altius scored on this window was US$5,915 for a 2026-08-30 departure, seen on 2026-07-01 — RARE at the time, 30.1% below the US$8,462 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.