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

Return flights

17 Jan - 31 Jan	Hawaiian Airlines
07 Jan - 19 Jan	Fiji Airways
14 Jan - 25 Jan	Hawaiian Airlines
05 Jan - 19 Jan	Hawaiian Airlines
14 Jan - 25 Jan	United	direct
20 Jan - 31 Jan	Qantas
20 Jan - 31 Jan	United	direct
17 Jan - 31 Jan	United	direct
01 Jan - 29 Jan	Delta
15 Jan - 22 Jan	United	direct
28 Jan - 20 Feb	Delta

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 928€

Return flights