AirHint found the following cheapest return flights from San Jose (SJO) to Buenos Aires (EZE) in July 2025 (see full year).

Return flights

15 Jul - 31 Jul	Copa
30 Jul - 05 Aug	LATAM Airlines Group
24 Jul - 28 Jul	Aeromexico
25 Jul - 03 Aug	Avianca
26 Jul - 03 Aug	Avianca
07 Jul - 14 Jul	Copa
26 Jul - 02 Aug	Avianca
12 Jul - 22 Jul	Copa
15 Jul - 22 Jul	Copa
09 Jul - 16 Jul	Avianca
10 Jul - 16 Jul	Copa
09 Jul - 17 Jul	Copa
11 Jul - 16 Jul	Copa
10 Jul - 17 Jul	Copa

Also check the deals for one-way flights from San Jose to Buenos Aires in July.

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 July from $560

Return flights