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

Return flights

26 Aug - 15 Sep	Air China
26 Aug - 03 Sep	Air China
28 Aug - 24 Sep	Etihad Airways
27 Aug - 24 Sep	Etihad Airways
27 Aug - 09 Sep	Air China
25 Aug - 09 Sep	KLM
26 Aug - 09 Sep	Air China
28 Aug - 09 Sep	Finnair
26 Aug - 06 Sep	Air China
22 Aug - 07 Sep	Air France
21 Aug - 24 Aug	Air China
21 Aug - 29 Aug	Air China
21 Aug - 31 Aug	Air China
21 Aug - 30 Aug	Air China
22 Aug - 31 Aug	KLM
22 Aug - 25 Aug	KLM
19 Aug - 26 Aug	Pegasus Airlines
21 Aug - 28 Aug	Air China
18 Aug - 25 Aug	Air Europa
22 Aug - 29 Aug	Sichuan Airlines

Also check the deals for one-way flights from Madrid to Singapore in August.

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 August from $688

Return flights