AirHint found the following cheapest return flights from Buenos Aires (AEP) to San Salvador (SAL) in December 2025 (see full year).
Return flights
| 23 Dec - 30 Dec | Flybondi | ||
| 30 Dec - 04 Jan | Flybondi | ||
| 16 Dec - 18 Dec | Flybondi | ||
| 17 Dec - 09 Jan | Flybondi | ||
| 24 Dec - 31 Jan | LATAM Airlines Group | ||
| 18 Dec - 10 Jan | Flybondi | ||
| 19 Dec - 11 Jan | Flybondi |
Also check the deals for one-way flights from Buenos Aires to San Salvador in December.
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