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

Return flights

09 Dec - 16 Dec	Etihad Airways
02 Dec - 09 Dec	Etihad Airways
01 Dec - 05 Dec	Air China
12 Dec - 21 Dec	Wizz Air Malta
26 Dec - 09 Jan	Ryanair
26 Dec - 06 Jan	Ryanair
29 Dec - 09 Jan	Ryanair
20 Dec - 30 Dec	Ryanair
27 Dec - 07 Jan	Xiamen Airlines
27 Dec - 03 Jan	Xiamen Airlines
21 Dec - 28 Dec	Ryanair
24 Dec - 07 Jan	Air China
20 Dec - 04 Jan	Ryanair
20 Dec - 06 Jan	Ryanair
22 Dec - 28 Dec	Iberia
19 Dec - 30 Dec	Sichuan Airlines
19 Dec - 02 Jan	EgyptAir
19 Dec - 04 Jan	Etihad Airways
06 Dec - 13 Dec	Korean Air

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

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 December from 617€

Return flights