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

Return flights

07 Oct - 17 Oct	KLM
06 Oct - 19 Oct	Air France
02 Oct - 16 Oct	Air France
06 Oct - 15 Oct	Air France
22 Oct - 29 Oct	Air France
05 Oct - 23 Oct	Air France
02 Oct - 09 Oct	Air France
26 Oct - 06 Nov	Air France
01 Oct - 12 Oct	Finnair
02 Oct - 06 Oct	Finnair
27 Oct - 03 Nov	Air France
01 Oct - 05 Oct	Finnair
15 Oct - 04 Nov	Etihad Airways
31 Oct - 11 Nov	Etihad Airways
17 Oct - 02 Nov	Etihad Airways
10 Oct - 01 Nov	Etihad Airways
23 Oct - 01 Nov	Etihad Airways

Also check the deals for one-way flights from Madrid to Singapore 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 Madrid to Singapore in October from $693

Return flights