AirHint found the following cheapest return flights from Cancun (CUN) to San Salvador (SAL) in December 2025 (see full year).
Return flights
| 04 Dec - 10 Jan | Copa | ||
| 25 Dec - 01 Jan | Avianca | direct | |
| 25 Dec - 30 Dec | Avianca | ||
| 20 Dec - 23 Dec | Copa | ||
| 20 Dec - 17 Jan | Copa | ||
| 27 Dec - 03 Jan | Avianca | direct | |
| 18 Dec - 21 Dec | Avianca | ||
| 06 Dec - 12 Jan | Avianca |
Also check the deals for one-way flights from Cancun to San Salvador in December.
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