AirHint found the following cheapest return flights from Merida (MID) to San Salvador (SAL) in December 2025 (see full year).
Return flights
| 09 Dec - 09 Jan | Aeromexico | ||
| 07 Dec - 10 Jan | Viva | ||
| 16 Dec - 03 Jan | Mexicana |
Also check the deals for one-way flights from Merida to San Salvador in December.
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