AirHint found the following cheapest return flights from San Francisco (SFO) to Sydney (SYD) in August 2026 (see full year).

Return flights

12 Aug - 19 Aug	Fiji Airways
14 Aug - 21 Aug	Fiji Airways
16 Aug - 23 Aug	Fiji Airways
19 Aug - 26 Aug	Fiji Airways
21 Aug - 28 Aug	Fiji Airways
23 Aug - 30 Aug	Fiji Airways
26 Aug - 02 Sep	Fiji Airways
28 Aug - 04 Sep	Fiji Airways
30 Aug - 06 Sep	Fiji Airways
09 Aug - 16 Aug	Fiji Airways
05 Aug - 12 Aug	Fiji Airways
07 Aug - 14 Aug	Fiji Airways
18 Aug - 25 Aug	ANA
25 Aug - 10 Sep	ANA
25 Aug - 01 Sep	Qantas	direct
28 Aug - 04 Sep	Qantas	direct
30 Aug - 06 Sep	Qantas	direct
31 Aug - 07 Sep	Air Canada
27 Aug - 03 Sep	ANA
29 Aug - 05 Sep	Qantas

Also check the deals for one-way flights from San Francisco to Sydney in August.

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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Cheapest return flights from San Francisco to Sydney in August from 687€

Return flights