AirHint found the following cheapest return flights from Santander (SDR) to San Salvador (SAL) in December 2025 (see full year).
Return flights
| 22 Dec - 05 Jan | Iberia | ||
| 20 Dec - 05 Jan | Iberia | ||
| 21 Dec - 05 Jan | Ryanair |
Also check the deals for one-way flights from Santander to San Salvador in December.
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