Cheapest return flights from San Francisco to Sydney in August from $946

Best time to book flights for San Francisco (SFO) to Sydney (SYD) flights at AirHint

AirHint found the following cheapest return flights from San Francisco (SFO) to Sydney (SYD) in August 2025 (see full year).

Return flights

07 Aug - 28 Aug Alaska Airlines
29 Aug - 06 Sep Alaska Airlines
13 Aug - 27 Aug Alaska Airlines
23 Aug - 30 Aug Hawaiian Airlines
13 Aug - 27 Aug United direct
17 Aug - 29 Sep United direct
23 Aug - 30 Aug United direct
07 Aug - 28 Aug United direct
29 Aug - 06 Sep United direct

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

Skyscanner

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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