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

Return flights

07 Dec - 14 Jan	Virgin Australia
10 Dec - 26 Dec	Scoot
27 Dec - 28 Jan	Hainan Airlines
28 Dec - 24 Jan	AirAsia X
10 Dec - 27 Dec	Scoot
14 Dec - 29 Dec	AirAsia X
14 Dec - 12 Jan	AirAsia X
16 Dec - 20 Jan	Hainan Airlines
27 Dec - 27 Jan	Hainan Airlines
27 Dec - 17 Jan	Hainan Airlines
18 Dec - 13 Jan	Batik Air Malaysia
15 Dec - 29 Dec	AirAsia X
16 Dec - 10 Jan	Hainan Airlines
16 Dec - 12 Jan	AirAsia X
10 Dec - 18 Dec	Air China
12 Dec - 31 Dec	Jetstar
17 Dec - 30 Dec	VietJet Air
21 Dec - 28 Dec	AirAsia X
07 Dec - 14 Dec	Qatar Airways
12 Dec - 19 Dec	Batik Air Malaysia

Also check the deals for one-way flights from Sydney to Copenhagen 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 Copenhagen

Cheap car rent in Copenhagen

Cheapest return flights from Sydney to Copenhagen in December from $1337

Return flights