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

Return flights

31 Jan - 11 Feb	Air Canada
19 Jan - 04 Feb	Air Canada
18 Jan - 25 Jan	Qantas	direct
20 Jan - 27 Jan	Qantas	direct
23 Jan - 30 Jan	Qantas	direct
25 Jan - 01 Feb	Qantas	direct
27 Jan - 03 Feb	Qantas	direct
30 Jan - 06 Feb	Qantas	direct
20 Jan - 04 Feb	United	direct
22 Jan - 12 Feb	United	direct
19 Jan - 26 Jan	Delta
24 Jan - 31 Jan	Delta
21 Jan - 28 Jan	Delta
22 Jan - 29 Jan	Delta
26 Jan - 02 Feb	Delta
29 Jan - 05 Feb	Delta
31 Jan - 07 Feb	Delta
06 Jan - 13 Jan	Hawaiian Airlines
02 Jan - 14 Jan	Hawaiian Airlines
17 Jan - 31 Jan	Alaska 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 809€

Return flights