Cheapest return flights from San Francisco to Sydney in August from $686

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

Return flights

23 Aug - 03 Sep Alaska Airlines
19 Aug - 27 Aug Hawaiian Airlines
26 Aug - 05 Sep Alaska Airlines
20 Aug - 03 Sep Hawaiian Airlines
12 Aug - 22 Aug Hawaiian Airlines
20 Aug - 27 Aug Hawaiian Airlines
12 Aug - 20 Aug Hawaiian Airlines
07 Aug - 17 Aug Alaska Airlines
14 Aug - 22 Aug Hawaiian Airlines
30 Aug - 06 Sep Alaska Airlines
19 Aug - 06 Sep Hawaiian Airlines
16 Aug - 27 Aug Alaska Airlines
22 Aug - 27 Aug Alaska Airlines
18 Aug - 26 Aug Alaska Airlines
15 Aug - 27 Aug Alaska Airlines
24 Aug - 04 Sep Philippine Airlines
22 Aug - 08 Sep Philippine Airlines
20 Aug - 06 Sep Philippine Airlines
21 Aug - 02 Sep Hawaiian Airlines
12 Aug - 30 Sep Hawaiian Airlines

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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