AirHint found the following cheapest return flights from Stuttgart (STR) to Buenos Aires (AEP) in December 2025 (see full year).
Return flights
| 25 Dec - 06 Jan | Eurowings | ||
| 26 Dec - 11 Jan | Eurowings | ||
| 22 Dec - 11 Jan | Vueling Airlines | ||
| 26 Dec - 02 Jan | Lufthansa | ||
| 24 Dec - 04 Jan | Lufthansa |
Also check the deals for one-way flights from Stuttgart to Buenos Aires in December.
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