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

Return flights

03 Dec - 16 Dec	KLM
03 Dec - 13 Dec	Vueling Airlines
04 Dec - 23 Dec	Vueling Airlines
07 Dec - 05 Jan	Vueling Airlines
08 Dec - 27 Dec	KLM
23 Dec - 11 Jan	Air Europa
24 Dec - 11 Jan	Iberia
22 Dec - 09 Jan	Air Europa
18 Dec - 30 Dec	Volotea
24 Dec - 10 Jan	Iberia
21 Dec - 05 Jan	Vueling Airlines
20 Dec - 05 Jan	Vueling Airlines
18 Dec - 10 Jan	Volotea
20 Dec - 04 Jan	Vueling Airlines
26 Dec - 02 Jan	Air Europa

Also check the deals for one-way flights from Bilbao 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 Bilbao to Kuala Lumpur in December from 520€

Return flights