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

Return flights

20 Aug - 03 Sep	Avianca
30 Aug - 11 Sep	Avianca
20 Aug - 31 Aug	Avianca
25 Aug - 14 Sep	Avianca
25 Aug - 04 Sep	Avianca
25 Aug - 08 Sep	Avianca
31 Aug - 12 Sep	Avianca
19 Aug - 26 Aug	Spirit Airlines
26 Aug - 02 Sep	Avianca
31 Aug - 05 Sep	Avianca
18 Aug - 24 Aug	Avianca
24 Aug - 27 Aug	Avianca
17 Aug - 23 Aug	Avianca
26 Aug - 28 Aug	Iberia
22 Aug - 01 Sep	Avianca
21 Aug - 28 Aug	Avianca
22 Aug - 28 Aug	Avianca
27 Aug - 03 Sep	Avianca

Also check the deals for one-way flights from San Salvador to Madrid in August.

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 August from 752€

Return flights