Cheapest return flights from San Diego to Sydney in December from 710€

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

Return flights

16 Dec - 20 Jan Air Canada
08 Dec - 18 Dec United

Also check the deals for one-way flights from San Diego 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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