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

Return flights

26 Dec - 10 Jan	Turkish Airlines
05 Dec - 24 Dec	KLM
01 Dec - 18 Dec	Air France
01 Dec - 14 Dec	Vueling Airlines
04 Dec - 27 Dec	Air France
10 Dec - 25 Dec	Air France
01 Dec - 21 Dec	Iberia
12 Dec - 26 Dec	Vueling Airlines
21 Dec - 29 Jan	Vueling Airlines
15 Dec - 23 Dec	Air France
13 Dec - 28 Dec	Vueling Airlines
12 Dec - 28 Dec	Vueling Airlines
06 Dec - 01 Jan	Vueling Airlines
04 Dec - 07 Jan	Iberia
29 Dec - 10 Jan	Air Europa
27 Dec - 10 Jan	Air Europa
28 Dec - 10 Jan	Vueling Airlines
27 Dec - 11 Jan	Air Europa
04 Dec - 08 Jan	Iberia
15 Dec - 16 Jan	Iberia

Also check the deals for one-way flights from Bilbao to Buenos Aires 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 Buenos Aires in December from 1016€

Return flights