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

Return flights

20 Aug - 28 Aug	Avianca	direct
07 Aug - 10 Aug	Avianca	direct
22 Aug - 25 Aug	Avianca	direct
14 Aug - 19 Aug	Avianca	direct
16 Aug - 26 Aug	Avianca	direct
03 Aug - 09 Aug	Avianca
14 Aug - 18 Aug	Avianca	direct
06 Aug - 10 Aug	Avianca	direct
21 Aug - 23 Aug	Avianca	direct
03 Aug - 09 Aug	Volaris El Salvador	direct

Also check the deals for one-way flights from San Salvador to San Jose 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 San Jose in August from 173€

Return flights