Cheapest return flights from San Salvador to Washington in December from $182

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

Return flights

24 Dec - 03 Jan Volaris El Salvador direct
25 Dec - 12 Jan Volaris El Salvador
25 Dec - 12 Jan Volaris El Salvador direct
18 Dec - 24 Jan Avianca direct
19 Dec - 10 Jan Volaris El Salvador direct
23 Dec - 01 Jan United direct
23 Dec - 03 Jan Volaris El Salvador direct
31 Dec - 03 Jan Frontier Airlines direct
17 Dec - 29 Dec Volaris El Salvador direct
24 Dec - 04 Jan Avianca
04 Dec - 07 Dec Avianca direct
24 Dec - 02 Jan Avianca
17 Dec - 27 Dec Volaris El Salvador direct
05 Dec - 08 Dec Avianca
24 Dec - 31 Dec Copa
24 Dec - 31 Dec Frontier Airlines direct
13 Dec - 20 Dec Avianca direct
05 Dec - 20 Dec Avianca direct
05 Dec - 08 Dec United direct
26 Dec - 29 Dec Frontier Airlines direct

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

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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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