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

Return flights

18 Dec - 21 Jan	Scandinavian Airlines
26 Dec - 23 Jan	Air India
18 Dec - 23 Jan	easyJet
22 Dec - 15 Jan	Ryanair
12 Dec - 21 Jan	easyJet
22 Dec - 11 Jan	Wizz Air
22 Dec - 29 Dec	Ryanair
15 Dec - 13 Jan	Ryanair
11 Dec - 18 Jan	Ryanair
15 Dec - 14 Jan	Ryanair
13 Dec - 31 Jan	SunExpress
17 Dec - 24 Dec	easyJet
15 Dec - 29 Dec	Ryanair
23 Dec - 30 Dec	Norwegian Air Sweden AOC
21 Dec - 29 Dec	Ryanair
26 Dec - 28 Dec	Air India
24 Dec - 31 Dec	Scandinavian Airlines
18 Dec - 25 Dec	Wizz Air
18 Dec - 26 Dec	Wizz Air
15 Dec - 22 Dec	Norwegian Air Sweden AOC

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 $1044

Return flights