Cheapest return flights from Washington to San Salvador in December from 567€

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 - 29 Dec Avianca direct
13 Dec - 31 Dec Avianca direct
13 Dec - 31 Jan Avianca direct
21 Dec - 17 Jan Avianca
18 Dec - 06 Jan Copa
18 Dec - 05 Jan Copa
18 Dec - 07 Jan Copa
19 Dec - 05 Jan Copa
23 Dec - 02 Jan Copa
23 Dec - 04 Jan Copa
20 Dec - 05 Jan Copa
18 Dec - 07 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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