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

Return flights

08 Dec - 15 Dec	KLM
07 Dec - 21 Jan	KLM
04 Dec - 08 Dec	Vueling Airlines
09 Dec - 16 Dec	Etihad Airways
01 Dec - 15 Dec	KLM
05 Dec - 22 Dec	KLM
01 Dec - 14 Dec	Etihad Airways
08 Dec - 23 Dec	Etihad Airways
01 Dec - 05 Dec	Ryanair
01 Dec - 08 Dec	KLM
06 Dec - 13 Dec	Vueling Airlines
04 Dec - 08 Jan	Vueling Airlines
04 Dec - 10 Jan	Vueling Airlines
30 Dec - 13 Jan	Ryanair
15 Dec - 06 Jan	Vueling Airlines
30 Dec - 14 Jan	Wizz Air
15 Dec - 02 Jan	Vueling Airlines
23 Dec - 13 Jan	Vueling Airlines
23 Dec - 20 Jan	Vueling Airlines
16 Dec - 06 Jan	AZAL

Also check the deals for one-way flights from Barcelona 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 Barcelona to Singapore in December from $613

Return flights