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

Return flights

25 Dec - 22 Jan	China Eastern
25 Dec - 24 Jan	China Eastern
16 Dec - 23 Dec	Turkish Airlines
27 Dec - 17 Jan	Turkish Airlines
12 Dec - 15 Jan	Qatar Airways
19 Dec - 30 Dec	Scandinavian Airlines
20 Dec - 16 Jan	Qatar Airways
26 Dec - 08 Jan	Turkish Airlines
27 Dec - 09 Jan	Air India
27 Dec - 07 Jan	Qatar Airways
26 Dec - 09 Jan	Turkish Airlines
14 Dec - 04 Jan	Turkish Airlines

Also check the deals for one-way flights from Copenhagen 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 Copenhagen to Sydney in December from 1227€

Return flights