Qantas and United award seats to Sydney have varying availability and pricing

Qantas offers economy and premium‑economy award seats to Sydney Kingsford Smith Airport from several U.S. cities using American Airlines AAdvantage or Alaska Airlines Atmos miles, while its business and first‑class awards appear in two‑ to three‑week tranches and then pause for months; United provides economy saver awards to Sydney from Los Angeles, San Francisco and Houston year‑round, with premium‑economy available on most days and business‑class saver seats appearing only a few days each month.