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

Return flights

09 Dec - 19 Jan	Scandinavian Airlines
06 Dec - 20 Jan	Ryanair
14 Dec - 19 Jan	Ryanair
12 Dec - 21 Jan	Ryanair
14 Dec - 20 Jan	Ryanair
13 Dec - 31 Jan	Ryanair
03 Dec - 10 Dec	Air India
01 Dec - 08 Dec	Austrian Airlines
04 Dec - 11 Dec	Wizz Air
27 Dec - 14 Jan	China Eastern
24 Dec - 21 Jan	Wizz Air
06 Dec - 12 Jan	Ryanair
02 Dec - 09 Dec	easyJet
16 Dec - 31 Jan	Scandinavian Airlines
07 Dec - 14 Dec	IndiGo
04 Dec - 12 Dec	Wizz Air
05 Dec - 12 Dec	Wizz Air Malta
10 Dec - 29 Dec	Wizz Air Malta
06 Dec - 13 Dec	Pegasus Airlines
09 Dec - 16 Dec	Wizz Air Malta

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 $959

Return flights