Altius recorded 298 priced readings of nonstop business-class round trips from Dallas (DFW) to Sydney (SYD) booked 30 days out, across 137 departure dates between 2026-05-20 and 2026-10-04. Observed fares ran from US$8,485 to US$26,766. The lowest fare Altius scored on this window was US$8,485 for a 2026-07-01 departure, seen on 2026-06-01 — RARE at the time, 43.9% below the US$15,125 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.