Cheapest return flights from San Francisco to San Salvador in December from 422€
AirHint found the following cheapest return flights from San Francisco (SFO) to San Salvador (SAL)
in December 2025 (see full year ).
Return flights
29 Dec
- 26 Jan
Frontier Airlines
422 €
01 Dec
- 22 Dec
Frontier Airlines
451 €
24 Dec
- 14 Jan
Hawaiian Airlines
476 €
31 Dec
- 22 Jan
United
477 €
06 Dec
- 12 Dec
Avianca
502 €
direct
25 Dec
- 14 Jan
Frontier Airlines
504 €
11 Dec
- 18 Dec
American Airlines
527 €
26 Dec
- 14 Jan
Frontier Airlines
536 €
27 Dec
- 17 Jan
Frontier Airlines
570 €
11 Dec
- 18 Dec
Avianca
646 €
direct
15 Dec
- 22 Dec
Avianca
646 €
direct
12 Dec
- 19 Dec
Avianca
658 €
direct
25 Dec
- 31 Dec
Frontier Airlines
661 €
14 Dec
- 21 Dec
American Airlines
684 €
24 Dec
- 30 Dec
Frontier Airlines
690 €
17 Dec
- 24 Dec
American Airlines
720 €
15 Dec
- 04 Jan
Frontier Airlines
747 €
29 Dec
- 03 Jan
Frontier Airlines
876 €
30 Dec
- 03 Jan
Frontier Airlines
887 €
17 Dec
- 03 Jan
Frontier Airlines
926 €
Also check the deals for one-way flights from San Francisco to San Salvador in December .
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