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

Return flights

03 Dec - 06 Jan	Turkish Airlines
25 Dec - 02 Jan	Air China
26 Dec - 04 Jan	Air China
26 Dec - 31 Jan	Air China
26 Dec - 12 Jan	Air China
26 Dec - 13 Jan	Air China
25 Dec - 08 Jan	Air China
04 Dec - 11 Dec	Turkish Airlines
03 Dec - 19 Dec	Turkish Airlines
11 Dec - 11 Jan	Air China
11 Dec - 18 Dec	Air China
27 Dec - 17 Jan	Air China
01 Dec - 14 Dec	Air China
26 Dec - 18 Jan	Air China
16 Dec - 23 Dec	Air China
10 Dec - 28 Dec	Air China
11 Dec - 29 Dec	Air China
05 Dec - 29 Dec	Air China
08 Dec - 29 Dec	Air China
07 Dec - 28 Dec	Air China

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 $1213

Return flights