Cheapest return flights from Las Vegas to San Salvador in December from $329

AirHint found the following cheapest return flights from Las Vegas (LAS) to San Salvador (SAL) in December 2025 (see full year).

Return flights

25 Dec - 17 Jan Frontier Airlines
31 Dec - 17 Jan Spirit Airlines
31 Dec - 09 Jan Spirit Airlines
31 Dec - 13 Jan Spirit Airlines
30 Dec - 17 Jan Spirit Airlines
30 Dec - 13 Jan Spirit Airlines
29 Dec - 17 Jan Spirit Airlines
29 Dec - 13 Jan Spirit Airlines
31 Dec - 10 Jan Spirit Airlines
31 Dec - 08 Jan Spirit Airlines
20 Dec - 27 Dec Copa
22 Dec - 27 Dec Copa

Also check the deals for one-way flights from Las Vegas to San Salvador in December.

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