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

Return flights

01 Dec - 16 Dec	Copa
09 Dec - 23 Dec	Copa
23 Dec - 30 Dec	Copa
21 Dec - 28 Dec	Copa
19 Dec - 26 Dec	Copa
18 Dec - 25 Dec	Copa
22 Dec - 29 Dec	Avianca
12 Dec - 10 Jan	Avianca
14 Dec - 18 Jan	Avianca
13 Dec - 10 Jan	Copa
14 Dec - 17 Jan	Avianca
20 Dec - 27 Dec	Copa
28 Dec - 04 Jan	Copa

Also check the deals for one-way flights from Buenos Aires 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.

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Cheapest return flights from Buenos Aires to San Salvador in December from $712

Return flights