Cheapest return flights from San Francisco to San Salvador in December from 391€

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

Return flights

30 Dec - 15 Jan Frontier Airlines
24 Dec - 27 Dec United
19 Dec - 16 Jan Frontier Airlines
18 Dec - 11 Jan Alaska Airlines
24 Dec - 01 Jan Frontier Airlines
25 Dec - 05 Jan Frontier Airlines
18 Dec - 22 Dec United
22 Dec - 29 Dec Frontier Airlines
20 Dec - 27 Dec Hawaiian Airlines
24 Dec - 12 Jan United
18 Dec - 22 Dec Avianca direct
26 Dec - 02 Jan Frontier Airlines
19 Dec - 02 Jan Frontier Airlines
17 Dec - 03 Jan Aeromexico
19 Dec - 03 Jan Frontier Airlines
20 Dec - 27 Dec Avianca direct

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

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