Cheapest return flights from Washington to San Salvador in December from 216€

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

Return flights

08 Dec - 21 Dec Frontier Airlines
31 Dec - 12 Jan Frontier Airlines direct
06 Dec - 23 Dec Frontier Airlines
13 Dec - 21 Dec Frontier Airlines
09 Dec - 14 Dec Frontier Airlines
05 Dec - 10 Dec Frontier Airlines
13 Dec - 20 Dec Frontier Airlines
12 Dec - 22 Dec Frontier Airlines
05 Dec - 14 Dec Frontier Airlines
30 Dec - 15 Jan Frontier Airlines direct
30 Dec - 13 Jan Frontier Airlines direct
03 Dec - 11 Dec Frontier Airlines
04 Dec - 08 Dec Allegiant Air
27 Dec - 18 Jan Frontier Airlines direct
28 Dec - 19 Jan Frontier Airlines direct
29 Dec - 18 Jan Frontier Airlines
13 Dec - 18 Jan Frontier Airlines
29 Dec - 16 Jan Frontier Airlines direct
30 Dec - 12 Jan Frontier Airlines direct
31 Dec - 08 Jan Frontier Airlines direct

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

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