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

Return flights

03 Dec - 10 Dec	Scoot
01 Dec - 08 Dec	Jetstar
04 Dec - 07 Dec	Jetstar
01 Dec - 15 Dec	Jetstar
08 Dec - 15 Dec	Jetstar
07 Dec - 14 Dec	Scoot
14 Dec - 21 Dec	Air China
12 Dec - 26 Dec	Air China
01 Dec - 27 Dec	Air China
16 Dec - 23 Dec	Air China
02 Dec - 13 Jan	Jetstar
02 Dec - 16 Jan	Jetstar
08 Dec - 13 Jan	China Eastern
27 Dec - 12 Jan	Air China
27 Dec - 10 Jan	Air China
27 Dec - 29 Jan	Hainan Airlines
27 Dec - 23 Jan	Hainan Airlines
25 Dec - 24 Jan	Hainan Airlines
05 Dec - 16 Jan	Jetstar
07 Dec - 10 Jan	Scoot

Also check the deals for one-way flights from Sydney to Madrid 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 Sydney to Madrid in December from 817€

Return flights