Cheapest return flights from San Francisco to Sydney in December from $1107

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

Return flights

05 Dec - 31 Dec Air New Zealand
08 Dec - 31 Dec Alaska Airlines
23 Dec - 05 Jan Qantas
20 Dec - 01 Jan Fiji Airways
17 Dec - 08 Jan Alaska Airlines
23 Dec - 05 Jan United direct
17 Dec - 08 Jan United direct

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

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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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