Cheapest return flights from Washington to San Salvador in December from 224€

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

Return flights

31 Dec - 22 Jan Avianca direct
31 Dec - 31 Dec Avianca direct
09 Dec - 15 Dec United direct
09 Dec - 22 Dec United direct
31 Dec - 12 Jan Frontier Airlines
15 Dec - 20 Dec Frontier Airlines
30 Dec - 12 Jan Frontier Airlines
26 Dec - 31 Dec Frontier Airlines direct
15 Dec - 21 Dec Frontier Airlines
31 Dec - 20 Jan Avianca direct
31 Dec - 25 Jan Avianca direct
30 Dec - 14 Jan Frontier Airlines direct
30 Dec - 16 Jan Frontier Airlines direct
22 Dec - 27 Dec Frontier Airlines direct
09 Dec - 16 Dec United direct
08 Dec - 15 Dec United
10 Dec - 17 Dec United direct
29 Dec - 16 Jan Frontier Airlines direct
26 Dec - 17 Jan Frontier Airlines
30 Dec - 11 Jan Frontier Airlines

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

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