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

Return flights

22 Sep - 02 Oct	Avianca
29 Sep - 06 Oct	Avianca
22 Sep - 08 Oct	Avianca
29 Sep - 08 Oct	Avianca
13 Sep - 24 Sep	Avianca
10 Sep - 17 Sep	Avianca
21 Sep - 25 Sep	Avianca
14 Sep - 24 Sep	Spirit Airlines
07 Sep - 14 Sep	Avianca
29 Sep - 17 Oct	Avianca
13 Sep - 23 Sep	Avianca
27 Sep - 04 Oct	Avianca
24 Sep - 01 Oct	Avianca
15 Sep - 22 Sep	Avianca
26 Sep - 05 Oct	Avianca
17 Sep - 24 Sep	Avianca
21 Sep - 27 Sep	Avianca
23 Sep - 08 Oct	Avianca
21 Sep - 08 Oct	Avianca
24 Sep - 30 Sep	Copa

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

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.

Book a cheap hotel in Madrid

Cheap car rent in Madrid

Cheapest return flights from San Salvador to Madrid in September from 595€

Return flights