AirHint found the following cheapest return flights from San Francisco (SFO) to Sydney (SYD) in September 2026 (see full year).
Return flights
| 23 Sep - 11 Oct | Fiji Airways | ||
| 01 Sep - 30 Sep | ANA | ||
| 18 Sep - 21 Sep | Air Canada | ||
| 04 Sep - 19 Sep | Qantas | ||
| 01 Sep - 30 Sep | United | direct | |
| 04 Sep - 19 Sep | United | direct | |
| 18 Sep - 21 Sep | United | direct |
Also check the deals for one-way flights from San Francisco to Sydney in September.
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