Cheapest return flights from San Luis Potosi to San Salvador in December from $303

AirHint found the following cheapest return flights from San Luis Potosi (SLP) to San Salvador (SAL) in December 2025 (see full year).

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.