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

Return flights

03 Dec - 09 Dec	Air China
04 Dec - 14 Dec	Air China
04 Dec - 07 Dec	Air China
04 Dec - 18 Dec	Etihad Airways
10 Dec - 22 Dec	Wizz Air Malta
13 Dec - 30 Dec	Etihad Airways
05 Dec - 18 Dec	Air China
03 Dec - 07 Dec	Wizz Air Malta
15 Dec - 24 Dec	Turkish Airlines
13 Dec - 20 Dec	Turkish Airlines
24 Dec - 01 Jan	Iberia
29 Dec - 18 Jan	Aer Lingus
13 Dec - 01 Jan	Iberia
24 Dec - 08 Jan	Iberia
26 Dec - 11 Jan	Pegasus Airlines
24 Dec - 06 Jan	Pegasus Airlines
18 Dec - 03 Jan	Hainan Airlines
27 Dec - 03 Jan	China Southern
19 Dec - 09 Jan	Sichuan Airlines
27 Dec - 09 Jan	Beijing Capital Airlines

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 524€

Return flights