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

Return flights

31 Dec - 15 Jan	Volaris El Salvador
30 Dec - 23 Jan	Avianca
31 Dec - 22 Jan	Avianca
31 Dec - 23 Jan	Avianca
31 Dec - 13 Jan	Avianca
31 Dec - 12 Jan	Volaris El Salvador
31 Dec - 14 Jan	Avianca
31 Dec - 16 Jan	Volaris El Salvador
30 Dec - 19 Jan	Avianca
29 Dec - 14 Jan	Frontier Airlines
24 Dec - 31 Dec	Avianca
23 Dec - 30 Dec	Avianca
19 Dec - 30 Dec	Avianca
19 Dec - 26 Dec	Avianca
21 Dec - 28 Dec	Iberia
23 Dec - 31 Dec	Iberia
21 Dec - 31 Dec	Iberia
22 Dec - 29 Dec	Avianca
20 Dec - 26 Dec	Avianca
21 Dec - 29 Dec	Iberia

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 621€

Return flights