AirHint found the following cheapest return flights from Sao Paulo (GRU) to San Jose (SJO) in October 2025 (see full year).

Return flights

09 Oct - 14 Oct	Avianca
25 Oct - 28 Oct	Avianca
02 Oct - 13 Oct	Avianca
16 Oct - 23 Oct	Avianca
21 Oct - 31 Oct	Avianca
05 Oct - 10 Oct	Avianca
03 Oct - 06 Oct	Avianca
04 Oct - 14 Oct	Avianca
01 Oct - 31 Oct	Avianca
03 Oct - 07 Oct	Avianca
31 Oct - 03 Nov	Avianca
31 Oct - 10 Nov	Avianca
28 Oct - 04 Nov	Avianca
30 Oct - 08 Nov	Avianca
31 Oct - 09 Nov	Avianca
15 Oct - 05 Nov	Copa
30 Oct - 04 Nov	GOL Linhas Aéreas	direct
28 Oct - 11 Nov	United

Also check the deals for one-way flights from Sao Paulo 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 Sao Paulo to San Jose in October from 284€

Return flights