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

Return flights

04 Dec - 24 Dec	Delta
07 Dec - 24 Dec	Delta
10 Dec - 29 Jan	Delta
09 Dec - 24 Dec	Delta
02 Dec - 24 Dec	Delta
02 Dec - 08 Dec	Delta
02 Dec - 29 Jan	Delta
08 Dec - 24 Dec	Delta
04 Dec - 08 Dec	Delta
04 Dec - 09 Dec	Delta
29 Dec - 22 Jan	Delta
10 Dec - 28 Jan	Delta
01 Dec - 11 Dec	Air France
02 Dec - 12 Dec	Air France
29 Dec - 30 Jan	Delta
09 Dec - 28 Jan	Delta
02 Dec - 28 Jan	Delta
08 Dec - 30 Jan	Delta
31 Dec - 29 Jan	Delta
07 Dec - 24 Jan	Delta

Also check the deals for one-way flights from Barcelona 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 Barcelona to Buenos Aires in December from 740€

Return flights