AirHint found the following cheapest return flights from Santiago (SCL) to San Salvador (SAL) in December 2025 (see full year).
Return flights
| 13 Dec - 28 Dec | Copa | ||
| 06 Dec - 08 Dec | Copa | ||
| 09 Dec - 05 Jan | Copa | ||
| 05 Dec - 08 Dec | Copa | ||
| 20 Dec - 04 Jan | Copa | ||
| 19 Dec - 04 Jan | Copa |
Also check the deals for one-way flights from Santiago to San Salvador in December.
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