AirHint found the following cheapest return flights from San Jose (SJO) to Buenos Aires (EZE) in August 2026 (see full year).

Return flights

20 Aug - 30 Aug	Avianca
17 Aug - 27 Aug	Avianca
11 Aug - 21 Aug	Avianca
23 Aug - 28 Aug	Avianca
13 Aug - 18 Aug	Avianca
13 Aug - 19 Aug	Avianca
16 Aug - 23 Aug	Avianca
14 Aug - 18 Aug	Avianca
19 Aug - 03 Sep	Avianca
28 Aug - 06 Sep	Avianca
12 Aug - 18 Aug	Avianca
15 Aug - 23 Aug	Avianca
29 Aug - 10 Sep	Avianca
28 Aug - 04 Sep	Avianca

Also check the deals for one-way flights from San Jose to Buenos Aires 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 Jose to Buenos Aires in August from 320€

Return flights