Cheapest return flights from Porto to Buenos Aires in December from $1012

Best time to book flights for Porto (OPO) to Buenos Aires (AEP) flights at AirHint

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

Return flights

01 Dec - 15 Dec LATAM Airlines Group
29 Dec - 28 Jan TAP
03 Dec - 30 Dec TAP
06 Dec - 14 Jan TAP
06 Dec - 30 Dec TAP
11 Dec - 18 Dec TAP
23 Dec - 01 Jan TAP
11 Dec - 29 Dec TAP
13 Dec - 07 Jan TAP
15 Dec - 07 Jan TAP
15 Dec - 06 Jan TAP
24 Dec - 03 Jan TAP
12 Dec - 07 Jan TAP
14 Dec - 06 Jan TAP
02 Dec - 05 Jan LATAM Airlines Group
12 Dec - 28 Dec SWISS
22 Dec - 27 Dec SWISS

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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