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

Return flights

04 Oct - 16 Nov	Air China
14 Oct - 13 Nov	Air China
18 Oct - 16 Nov	Air China
04 Oct - 08 Nov	Air China
26 Oct - 12 Nov	Air China
28 Oct - 12 Nov	Air China
10 Oct - 26 Oct	Turkish Airlines
24 Oct - 27 Oct	Turkish Airlines
04 Oct - 18 Oct	Air China
11 Oct - 24 Oct	Air China
20 Oct - 05 Nov	Cathay Pacific
20 Oct - 18 Nov	Cathay Pacific
22 Oct - 12 Nov	Cathay Pacific
16 Oct - 23 Oct	Air China
05 Oct - 27 Nov	Air China
09 Oct - 16 Oct	Turkish Airlines
01 Oct - 29 Oct	Scoot Tigerair
06 Oct - 25 Oct	Air Canada
05 Oct - 25 Oct	Air China
03 Oct - 25 Oct	Air Canada

Also check the deals for one-way flights from Sydney to Madrid in October.

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 October from 697€

Return flights