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

Return flights

15 Dec - 17 Dec	Wizz Air
15 Dec - 16 Dec	Wizz Air
07 Dec - 12 Dec	Vueling Airlines
07 Dec - 10 Dec	Vueling Airlines
09 Dec - 12 Dec	Vueling Airlines
01 Dec - 03 Dec	Wizz Air
07 Dec - 14 Dec	Vueling Airlines
14 Dec - 16 Dec	Vueling Airlines
01 Dec - 06 Dec	Wizz Air
15 Dec - 18 Dec	Wizz Air
13 Dec - 16 Jan	Vueling Airlines
22 Dec - 08 Jan	Wizz Air
27 Dec - 01 Jan	Air Europa
22 Dec - 09 Jan	Wizz Air	direct
28 Dec - 05 Jan	Air Europa
23 Dec - 05 Jan	Iberia
29 Dec - 01 Jan	Iberia
29 Dec - 05 Jan	Iberia
23 Dec - 04 Jan	Iberia
30 Dec - 04 Jan	Air Europa

Also check the deals for one-way flights from Bilbao to Budapest 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 Budapest in December from $122

Return flights