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

Return flights

06 Dec - 13 Dec	Ryanair
10 Dec - 11 Dec	Iberia
09 Dec - 14 Jan	Iberia
09 Dec - 12 Jan	Iberia
08 Dec - 10 Jan	Iberia
06 Dec - 10 Jan	Wizz Air Malta
29 Dec - 29 Jan	TAP
09 Dec - 09 Jan	Iberia
07 Dec - 23 Dec	Avianca
11 Dec - 17 Jan	Wizz Air Malta
15 Dec - 22 Jan	United
06 Dec - 22 Dec	Wizz Air Malta
08 Dec - 08 Jan	Iberia
13 Dec - 10 Jan	Iberia
07 Dec - 21 Dec	Iberia
10 Dec - 17 Dec	Iberia
11 Dec - 24 Dec	KLM
06 Dec - 21 Dec	Wizz Air Malta
15 Dec - 26 Dec	Iberia
12 Dec - 27 Dec	Ryanair

Also check the deals for one-way flights from Madrid 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 Madrid to San Salvador in December from 680€

Return flights