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

Return flights

02 Dec - 09 Dec	ITA Airways
01 Dec - 10 Dec	ITA Airways
03 Dec - 10 Dec	ITA Airways
10 Dec - 27 Jan	Delta
08 Dec - 27 Jan	Delta
07 Dec - 22 Jan	Delta
10 Dec - 22 Jan	Delta
28 Dec - 22 Jan	Delta
09 Dec - 29 Jan	Delta
08 Dec - 21 Jan	Delta
10 Dec - 29 Jan	Delta
28 Dec - 21 Jan	Delta
28 Dec - 27 Jan	Delta
02 Dec - 08 Dec	Delta
01 Dec - 11 Dec	ITA Airways
04 Dec - 09 Dec	ITA Airways
02 Dec - 11 Dec	ITA Airways
10 Dec - 24 Dec	Delta
01 Dec - 13 Dec	ITA Airways
03 Dec - 17 Dec	ITA Airways

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.

Book a cheap hotel in Buenos Aires

Cheap car rent in Buenos Aires

Cheapest return flights from Barcelona to Buenos Aires in December from 728€

Return flights