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

Return flights

19 Oct - 05 Nov	Air China
22 Oct - 05 Nov	Qantas
21 Oct - 04 Nov	Air China
27 Oct - 12 Nov	China Eastern
18 Oct - 02 Nov	Air China
24 Oct - 05 Nov	Air New Zealand
27 Oct - 09 Nov	China Eastern
12 Oct - 23 Nov	Air China
31 Oct - 07 Nov	Turkish Airlines
24 Oct - 13 Nov	Turkish Airlines
14 Oct - 27 Oct	AirAsia X
13 Oct - 27 Oct	Scoot
15 Oct - 28 Oct	VietJet Air
15 Oct - 27 Oct	VietJet Air
15 Oct - 22 Oct	Scoot
06 Oct - 22 Oct	Scoot
18 Oct - 25 Oct	Scoot
13 Oct - 24 Oct	Scoot
04 Oct - 15 Oct	China Eastern
07 Oct - 28 Oct	Scoot

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 $753

Return flights