AirHint found the following cheapest return flights from Bilbao (BIO) to Buenos Aires (EZE) in December 2026 (see full year).
Return flights
| 04 Dec - 08 Dec | Air Europa | ||
| 19 Dec - 10 Jan | Air Europa | ||
| 23 Dec - 05 Jan | Air Europa | ||
| 19 Dec - 04 Jan | Air Europa |
Also check the deals for one-way flights from Bilbao to Buenos Aires in December.
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