Cheapest return flights from Washington to San Salvador in December from $257

Best time to book flights for Washington (IAD) to San Salvador (SAL) flights at AirHint

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

Return flights

18 Dec - 26 Dec Volaris El Salvador direct
21 Dec - 28 Dec Volaris El Salvador direct
24 Dec - 01 Jan Volaris El Salvador
19 Dec - 28 Dec Avianca
24 Dec - 01 Jan Avianca direct
15 Dec - 03 Jan Volaris El Salvador
13 Dec - 10 Jan American Airlines
23 Dec - 01 Jan Avianca
19 Dec - 01 Jan Avianca
23 Dec - 01 Jan Avianca direct
20 Dec - 03 Jan Copa
15 Dec - 03 Jan Volaris El Salvador direct
19 Dec - 28 Dec Avianca direct
19 Dec - 01 Jan Avianca direct

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

Skyscanner

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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