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

Return flights

15 Jan - 01 Feb	Alaska Airlines
16 Jan - 01 Feb	Alaska Airlines
17 Jan - 31 Jan	Alaska Airlines
17 Jan - 01 Feb	Hawaiian Airlines
14 Jan - 20 Jan	Fiji Airways
01 Jan - 29 Jan	Delta
14 Jan - 01 Feb	Fiji Airways
16 Jan - 01 Feb	Qantas	direct
06 Jan - 22 Jan	Alaska Airlines
02 Jan - 02 Feb	Frontier Airlines
04 Jan - 16 Jan	Fiji Airways
15 Jan - 26 Jan	Cathay Pacific
15 Jan - 02 Feb	Alaska Airlines
15 Jan - 01 Feb	United	direct
15 Jan - 02 Feb	United	direct
15 Jan - 26 Jan	United	direct
14 Jan - 25 Jan	United	direct
02 Jan - 09 Jan	Fiji Airways
06 Jan - 22 Jan	United	direct
02 Jan - 02 Feb	United	direct

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 892€

Return flights