Cheapest return flights from San Francisco to Sydney in September from 658€

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

Return flights

24 Sep - 15 Oct Hawaiian Airlines
09 Sep - 21 Sep Hawaiian Airlines
08 Sep - 21 Sep Alaska Airlines
16 Sep - 23 Sep Air Canada
25 Sep - 12 Oct Hawaiian Airlines
02 Sep - 09 Sep Hawaiian Airlines
10 Sep - 21 Sep Hawaiian Airlines
08 Sep - 15 Sep Philippine Airlines
01 Sep - 09 Sep Philippine Airlines
04 Sep - 15 Sep Philippine Airlines
22 Sep - 07 Oct Philippine Airlines
10 Sep - 22 Sep Air Canada
01 Sep - 20 Sep Air Canada
17 Sep - 04 Oct Air Canada
19 Sep - 10 Oct Air Canada
19 Sep - 04 Oct Air Canada
26 Sep - 12 Oct Hawaiian Airlines
30 Sep - 07 Oct Philippine Airlines
21 Sep - 01 Oct United direct
30 Sep - 07 Oct United direct

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

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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