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

Return flights

01 Aug - 27 Aug	Avianca
02 Aug - 06 Aug	Avianca
28 Aug - 31 Aug	Avianca	direct
14 Aug - 18 Aug	Avianca
01 Aug - 09 Aug	Avianca
15 Aug - 18 Aug	Avianca
16 Aug - 18 Aug	Avianca	direct
20 Aug - 25 Aug	Avianca	direct
20 Aug - 23 Sep	Avianca	direct
15 Aug - 31 Aug	Avianca
13 Aug - 20 Aug	Avianca	direct
10 Aug - 05 Sep	Aeromexico	direct

Also check the deals for one-way flights from Mexico City to San Salvador 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 Mexico City to San Salvador in August from 168€

Return flights