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

Return flights

03 Dec - 17 Dec	SWISS
07 Dec - 10 Jan	Etihad Airways
14 Dec - 26 Dec	Aegean Airlines
18 Dec - 07 Jan	Ryanair
24 Dec - 31 Dec	Iberia Express
14 Dec - 10 Jan	Sichuan Airlines
29 Dec - 05 Jan	Ryanair
17 Dec - 28 Dec	Finnair
20 Dec - 04 Jan	Ryanair
10 Dec - 20 Dec	Air France
27 Dec - 04 Jan	Ryanair
20 Dec - 27 Dec	Etihad Airways
19 Dec - 05 Jan	Air China
05 Dec - 14 Dec	Finnair
10 Dec - 27 Dec	Finnair
14 Dec - 08 Jan	Finnair
16 Dec - 10 Jan	Air France
28 Dec - 10 Jan	Finnair

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 608€

Return flights