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

Return flights

26 Jan - 02 Feb	Hawaiian Airlines
26 Jan - 06 Feb	Hawaiian Airlines
28 Jan - 07 Feb	Hawaiian Airlines
25 Jan - 08 Feb	Fiji Airways
14 Jan - 21 Jan	Alaska Airlines
05 Jan - 16 Jan	Alaska Airlines
21 Jan - 28 Jan	Alaska Airlines
09 Jan - 18 Jan	Alaska Airlines
17 Jan - 23 Jan	Hawaiian Airlines
04 Jan - 18 Jan	Alaska Airlines
28 Jan - 03 Feb	Air New Zealand
29 Jan - 02 Feb	Frontier Airlines
21 Jan - 30 Jan	Alaska Airlines
13 Jan - 27 Jan	Hawaiian Airlines
19 Jan - 26 Jan	Hawaiian Airlines
14 Jan - 28 Jan	Hawaiian Airlines
09 Jan - 01 Feb	Hawaiian Airlines
30 Jan - 20 Feb	Alaska Airlines
16 Jan - 01 Feb	Alaska Airlines
28 Jan - 02 Feb	Hawaiian Airlines

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

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 January from $939

Return flights