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

Return flights

24 Dec - 22 Jan	Delta
24 Dec - 27 Jan	Delta
24 Dec - 25 Jan	Delta
24 Dec - 28 Jan	Delta
24 Dec - 14 Jan	Delta
25 Dec - 24 Jan	Delta
25 Dec - 31 Jan	Delta
25 Dec - 30 Jan	Delta
25 Dec - 22 Jan	Delta
24 Dec - 27 Dec	Delta
28 Dec - 20 Jan	Delta
24 Dec - 26 Dec	Delta
24 Dec - 28 Dec	Delta
24 Dec - 29 Dec	Delta
25 Dec - 27 Dec	Delta
25 Dec - 26 Dec	Delta
25 Dec - 29 Dec	Delta
26 Dec - 27 Dec	Delta
13 Dec - 27 Dec	Delta
14 Dec - 27 Dec	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 $870

Return flights