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

Return flights

28 Dec - 31 Dec	Volotea
26 Dec - 31 Dec	Vueling Airlines
29 Dec - 31 Dec	Vueling Airlines
31 Dec - 04 Jan	Iberia
29 Dec - 05 Jan	Volotea
31 Dec - 05 Jan	Vueling Airlines
30 Dec - 09 Jan	Iberia
30 Dec - 05 Jan	Vueling Airlines
30 Dec - 04 Jan	Iberia
28 Dec - 04 Jan	Volotea
27 Dec - 31 Dec	Air Europa
30 Dec - 03 Jan	Iberia
27 Dec - 03 Jan	Air Europa
26 Dec - 04 Jan	Vueling Airlines
26 Dec - 28 Dec	Air France
27 Dec - 30 Dec	Air Europa
26 Dec - 30 Dec	Vueling Airlines
25 Dec - 30 Dec	Iberia
25 Dec - 27 Dec	Air France
25 Dec - 28 Dec	Iberia

Also check the deals for one-way flights from Bilbao to Vienna 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 Vienna in December from 147€

Return flights