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

Return flights

07 Dec - 28 Dec	KLM
03 Dec - 09 Dec	KLM
02 Dec - 12 Dec	Pegasus Airlines
01 Dec - 04 Dec	Air China
03 Dec - 10 Dec	Wizz Air Malta
05 Dec - 13 Dec	Pegasus Airlines
06 Dec - 09 Dec	Ryanair
05 Dec - 14 Dec	Pegasus Airlines
05 Dec - 08 Dec	KLM
31 Dec - 11 Jan	Turkish Airlines
16 Dec - 10 Jan	Turkish Airlines
07 Dec - 19 Dec	Turkish Airlines
31 Dec - 08 Jan	Ryanair
31 Dec - 07 Jan	Ryanair
30 Dec - 07 Jan	Turkish Airlines
20 Dec - 06 Jan	Ryanair
25 Dec - 06 Jan	SKY express
20 Dec - 07 Jan	Ryanair
21 Dec - 06 Jan	TAP
21 Dec - 09 Jan	Iberia

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 $689

Return flights