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

Return flights

04 Dec - 11 Dec	Scoot
01 Dec - 10 Dec	Scoot
01 Dec - 11 Dec	Scoot
02 Dec - 15 Dec	Jetstar
01 Dec - 12 Dec	Scoot
05 Dec - 28 Dec	Air China
07 Dec - 28 Dec	Air China
07 Dec - 30 Dec	Air China
31 Dec - 12 Jan	Air China
31 Dec - 11 Jan	Air China
06 Dec - 15 Jan	Hainan Airlines
03 Dec - 17 Dec	Scoot
02 Dec - 16 Dec	Jetstar
27 Dec - 03 Jan	Air China
30 Dec - 11 Jan	Air China
24 Dec - 06 Jan	Air China
27 Dec - 06 Jan	Air China
24 Dec - 03 Jan	Air China
11 Dec - 11 Jan	Virgin Australia
12 Dec - 16 Jan	Jetstar

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 $915

Return flights