AirHint found the following cheapest return flights from Porto (OPO) to Buenos Aires (AEP) in December 2026 (see full year).
Return flights
| 16 Dec - 30 Jan | TAP | ||
| 05 Dec - 15 Dec | TAP | ||
| 04 Dec - 13 Dec | TAP | ||
| 19 Dec - 25 Jan | Ryanair | ||
| 20 Dec - 27 Dec | TAP | ||
| 25 Dec - 03 Jan | Iberia | ||
| 19 Dec - 24 Jan | SWISS |
Also check the deals for one-way flights from Porto to Buenos Aires in December.
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