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

Return flights

08 Dec - 16 Dec	Etihad Airways
01 Dec - 23 Dec	Etihad Airways
02 Dec - 09 Dec	KLM
08 Dec - 30 Dec	Etihad Airways
10 Dec - 30 Dec	Etihad Airways
08 Dec - 26 Dec	Etihad Airways
10 Dec - 28 Dec	Etihad Airways
09 Dec - 24 Dec	KLM
06 Dec - 09 Dec	Ryanair
05 Dec - 08 Dec	Shenzhen Airlines
11 Dec - 08 Jan	Qatar Airways
09 Dec - 07 Jan	Iberia
10 Dec - 09 Jan	Iberia
12 Dec - 08 Jan	Shenzhen Airlines
16 Dec - 13 Jan	Etihad Airways
31 Dec - 18 Jan	Pegasus Airlines
29 Dec - 19 Jan	Pegasus Airlines
30 Dec - 14 Jan	Ryanair
15 Dec - 10 Jan	Wizz Air Malta
31 Dec - 10 Jan	Pegasus Airlines

Also check the deals for one-way flights from Barcelona to Kuala Lumpur 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 Kuala Lumpur in December from $565

Return flights