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

Return flights

17 Dec - 24 Dec	Avianca
02 Dec - 06 Dec	Avianca
01 Dec - 10 Dec	Avianca
01 Dec - 07 Dec	Avianca
09 Dec - 23 Dec	Avianca
09 Dec - 24 Dec	Avianca
15 Dec - 31 Dec	Avianca
16 Dec - 01 Jan	Copa
16 Dec - 27 Dec	Avianca
24 Dec - 31 Dec	Avianca
13 Dec - 20 Dec	Avianca
31 Dec - 06 Jan	Avianca
31 Dec - 07 Jan	Avianca
25 Dec - 01 Jan	Copa
30 Dec - 17 Jan	Avianca
28 Dec - 07 Jan	Avianca
19 Dec - 09 Jan	Copa
27 Dec - 01 Jan	Avianca
22 Dec - 14 Jan	Avianca
28 Dec - 08 Jan	Avianca

Also check the deals for one-way flights from Sao Paulo to San Jose in December.

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 December from 325€

Return flights