Cheapest return flights from San Francisco to Sydney in December from 1051€

Best time to book flights for San Francisco (SFO) to Sydney (SYD) flights at AirHint

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

Return flights

06 Dec - 29 Dec Air Canada
06 Dec - 29 Dec United direct
25 Dec - 11 Jan Delta
25 Dec - 11 Jan United direct
10 Dec - 31 Dec Delta
23 Dec - 06 Jan Delta
23 Dec - 06 Jan United direct
17 Dec - 07 Jan Fiji Airways
21 Dec - 03 Jan Fiji Airways
15 Dec - 02 Jan Alaska Airlines
21 Dec - 05 Jan Fiji Airways
20 Dec - 02 Jan Fiji Airways
19 Dec - 10 Jan Fiji Airways
18 Dec - 31 Dec Air Canada
18 Dec - 31 Dec United direct

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

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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