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

Return flights

05 Dec - 19 Jan	KLM
01 Dec - 31 Jan	Wizz Air
24 Dec - 19 Jan	Finnair
27 Dec - 18 Jan	Scandinavian Airlines
31 Dec - 29 Jan	Norwegian
25 Dec - 11 Jan	Norwegian
25 Dec - 10 Jan	Norwegian
15 Dec - 31 Dec	Norwegian
24 Dec - 20 Jan	Qatar Airways
27 Dec - 11 Jan	Scandinavian Airlines
16 Dec - 29 Dec	Scandinavian Airlines
23 Dec - 19 Jan	Qatar Airways
10 Dec - 20 Dec	Ryanair
18 Dec - 31 Dec	Transavia France
05 Dec - 19 Dec	Turkish Airlines
20 Dec - 27 Dec	Ryanair
05 Dec - 20 Dec	Scandinavian Airlines

Also check the deals for one-way flights from Oslo 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 Oslo to Sydney in December from $929

Return flights