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

Return flights

01 Dec - 13 Dec	Volaris El Salvador
31 Dec - 26 Jan	Avianca
31 Dec - 13 Jan	Avianca
13 Dec - 10 Jan	Avianca
01 Dec - 10 Dec	United
18 Dec - 09 Jan	Avianca
30 Dec - 19 Jan	United
30 Dec - 22 Jan	United
30 Dec - 24 Jan	United
25 Dec - 24 Jan	Avianca
01 Dec - 08 Dec	United
01 Dec - 04 Jan	Avianca
23 Dec - 06 Jan	Avianca
04 Dec - 11 Dec	United
21 Dec - 29 Dec	Avianca
22 Dec - 29 Dec	Avianca
01 Dec - 31 Dec	Avianca
24 Dec - 31 Dec	Avianca
11 Dec - 26 Dec	Avianca
16 Dec - 30 Dec	Avianca

Also check the deals for one-way flights from San Salvador to Madrid 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 San Salvador to Madrid in December from 511€

Return flights