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

Return flights

23 Aug - 06 Sep	Fiji Airways
05 Aug - 19 Aug	Fiji Airways
16 Aug - 23 Aug	Fiji Airways
01 Aug - 19 Aug	Fiji Airways
03 Aug - 10 Aug	Air Canada
22 Aug - 30 Aug	Air Canada
16 Aug - 23 Aug	Qantas	direct
05 Aug - 19 Aug	United	direct
03 Aug - 10 Aug	United	direct
01 Aug - 19 Aug	United	direct
01 Aug - 14 Aug	Fiji Airways

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 752€

Return flights