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

Return flights

01 Oct - 13 Oct	Finnair
03 Oct - 12 Oct	Finnair
03 Oct - 05 Oct	Finnair
02 Oct - 12 Oct	Finnair
01 Oct - 16 Oct	Finnair
01 Oct - 31 Oct	Finnair
19 Oct - 26 Oct	Air China
22 Oct - 29 Oct	Air China
06 Oct - 13 Oct	Air France
18 Oct - 09 Nov	Air China
08 Oct - 21 Oct	Etihad Airways
19 Oct - 11 Nov	Etihad Airways
19 Oct - 10 Nov	Etihad Airways
13 Oct - 03 Nov	Etihad Airways
17 Oct - 10 Nov	Etihad Airways
17 Oct - 02 Nov	Etihad Airways
30 Oct - 06 Nov	Finnair
26 Oct - 07 Nov	Air China
18 Oct - 10 Nov	Air China
28 Oct - 07 Nov	Air China

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 499€

Return flights