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

Return flights

23 Dec - 24 Jan	China Eastern
24 Dec - 15 Jan	China Eastern
31 Dec - 23 Jan	China Eastern
31 Dec - 24 Jan	China Eastern
24 Dec - 17 Jan	China Eastern
24 Dec - 08 Jan	China Eastern
31 Dec - 15 Jan	China Eastern
29 Dec - 20 Jan	Air India
29 Dec - 19 Jan	Air India
23 Dec - 22 Jan	China Eastern
24 Dec - 30 Dec	China Eastern
23 Dec - 29 Dec	China Eastern
24 Dec - 31 Dec	China Eastern
24 Dec - 29 Dec	China Eastern
22 Dec - 29 Dec	Air France
21 Dec - 30 Dec	Oman Air
29 Dec - 31 Dec	China Eastern

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

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 Paris to Sydney in December from 667€

Return flights