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

Return flights

03 Oct - 13 Oct	Avianca
11 Oct - 22 Oct	Avianca
17 Oct - 24 Oct	Avianca
11 Oct - 19 Oct	Avianca
12 Oct - 21 Oct	Avianca
11 Oct - 25 Oct	Avianca
16 Oct - 25 Oct	Avianca
28 Oct - 15 Nov	Avianca
13 Oct - 20 Oct	LATAM Airlines Group
10 Oct - 19 Oct	LATAM Airlines Group
02 Oct - 06 Oct	LATAM Airlines Group
31 Oct - 07 Nov	LATAM Airlines Group
28 Oct - 17 Nov	Copa
25 Oct - 05 Nov	Copa
01 Oct - 30 Nov	Avianca

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

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 Buenos Aires to San Jose in October from $480

Return flights