Cheapest return flights from Porto to Buenos Aires in December from $737

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

Return flights

11 Dec - 18 Jan Ethiopian Airlines
11 Dec - 20 Jan Ethiopian Airlines
04 Dec - 15 Jan Ethiopian Airlines
04 Dec - 29 Jan Ethiopian Airlines
04 Dec - 11 Dec Ethiopian Airlines
11 Dec - 01 Jan Ethiopian Airlines
11 Dec - 25 Dec Ethiopian Airlines
04 Dec - 18 Dec Ethiopian Airlines
06 Dec - 13 Dec Ethiopian Airlines
01 Dec - 09 Dec Ethiopian Airlines
15 Dec - 01 Jan Ethiopian Airlines
15 Dec - 15 Jan Ethiopian Airlines
02 Dec - 07 Dec Ethiopian Airlines
02 Dec - 06 Dec Lufthansa
13 Dec - 01 Jan Ethiopian Airlines
09 Dec - 16 Dec Ethiopian Airlines
18 Dec - 27 Dec Ethiopian Airlines
23 Dec - 30 Dec Ethiopian Airlines
27 Dec - 04 Jan Ethiopian Airlines
09 Dec - 06 Jan Ethiopian Airlines

Also check the deals for one-way flights from Porto 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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