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

Return flights

28 Dec - 30 Jan	Turkish Airlines
27 Dec - 30 Jan	Turkish Airlines
23 Dec - 06 Jan	Turkish Airlines
18 Dec - 31 Dec	Qatar Airways
16 Dec - 04 Jan	Turkish Airlines
28 Dec - 04 Jan	Turkish Airlines
22 Dec - 12 Jan	Finnair
23 Dec - 09 Jan	Turkish Airlines
21 Dec - 06 Jan	Finnair
19 Dec - 06 Jan	Turkish Airlines
18 Dec - 02 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.

Book a cheap hotel in Sydney

Cheap car rent in Sydney

Cheapest return flights from Copenhagen to Sydney in December from $1593

Return flights