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

Return flights

04 Dec - 13 Dec	American Airlines
03 Dec - 08 Dec	American Airlines
09 Dec - 13 Dec	American Airlines
05 Dec - 14 Dec	American Airlines
06 Dec - 23 Dec	American Airlines
01 Dec - 05 Dec	American Airlines
03 Dec - 07 Dec	jetBlue
31 Dec - 07 Jan	jetBlue
16 Dec - 25 Dec	United
26 Dec - 30 Dec	American Airlines
31 Dec - 05 Jan	jetBlue
30 Dec - 07 Jan	jetBlue
22 Dec - 29 Dec	American Airlines
24 Dec - 07 Jan	jetBlue
13 Dec - 08 Jan	American Airlines
19 Dec - 23 Jan	jetBlue
30 Dec - 04 Jan	American Airlines
26 Dec - 11 Jan	jetBlue
17 Dec - 05 Jan	jetBlue
27 Dec - 01 Jan	American Airlines

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

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.

Book a cheap hotel in San Salvador

Cheap car rent in San Salvador

Cheapest return flights from Washington to San Salvador in December from $349

Return flights