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

Return flights

26 Dec - 10 Jan	Volaris El Salvador
02 Dec - 09 Dec	Avianca
27 Dec - 11 Jan	Volaris El Salvador
01 Dec - 11 Dec	Avianca
23 Dec - 31 Dec	Avianca
15 Dec - 31 Jan	Avianca
24 Dec - 06 Jan	Avianca
06 Dec - 05 Jan	United
20 Dec - 01 Jan	Avianca
20 Dec - 06 Jan	Avianca
24 Dec - 31 Dec	Avianca
23 Dec - 04 Jan	Avianca
12 Dec - 30 Dec	Avianca
13 Dec - 30 Dec	Avianca
19 Dec - 03 Jan	Avianca
03 Dec - 04 Jan	Avianca
16 Dec - 30 Dec	Avianca
19 Dec - 30 Dec	Avianca
20 Dec - 30 Dec	Avianca
15 Dec - 29 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 702€

Return flights