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

One-Way flights

03 Dec	Ryanair
07 Dec	Aegean Airlines
13 Dec	Austrian Airlines
29 Dec	Austrian Airlines
28 Dec	Air Serbia
21 Dec	Air Serbia
27 Dec	KLM
17 Dec	Austrian Airlines
18 Dec	Air Serbia
31 Dec	Norwegian Air Sweden AOC

Also check the deals for return 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 one-way flights from Copenhagen to Sydney in December from 481€

One-Way flights