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

Return flights

22 Aug - 06 Sep	Etihad Airways
29 Aug - 06 Sep	Air India
26 Aug - 03 Sep	Turkish Airlines
20 Aug - 17 Sep	Air India
21 Aug - 03 Sep	Turkish Airlines
10 Aug - 24 Aug	Air India
27 Aug - 07 Sep	easyJet
28 Aug - 07 Sep	Etihad Airways
27 Aug - 03 Sep	Turkish Airlines
20 Aug - 27 Aug	Ryanair
25 Aug - 03 Sep	Air India
21 Aug - 28 Aug	Etihad Airways
27 Aug - 04 Sep	easyJet
11 Aug - 18 Aug	Etihad Airways
18 Aug - 21 Aug	Etihad Airways
07 Aug - 28 Aug	Etihad Airways
06 Aug - 09 Aug	Ryanair

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

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 August from 931€

Return flights