Cheapest return flights from Bilbao to Buenos Aires in December from $1067

Best time to book flights for Bilbao (BIO) to Buenos Aires (AEP) flights at AirHint

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

Return flights

07 Dec - 30 Dec LATAM Airlines Group
08 Dec - 30 Dec LATAM Airlines Group
03 Dec - 24 Dec LATAM Airlines Group
16 Dec - 23 Dec LATAM Airlines Group
20 Dec - 04 Jan Iberia
17 Dec - 08 Jan Air France
21 Dec - 06 Jan Iberia
22 Dec - 05 Jan LATAM Airlines Group
19 Dec - 06 Jan Air Europa
20 Dec - 05 Jan Iberia
09 Dec - 04 Jan TAP

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

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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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