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

Return flights

18 Dec - 30 Dec	Avianca
13 Dec - 10 Jan	Avianca
25 Dec - 02 Jan	Copa
19 Dec - 30 Dec	Copa
19 Dec - 28 Dec	Copa
28 Dec - 10 Jan	Copa
30 Dec - 04 Jan	Copa
25 Dec - 03 Jan	Copa
20 Dec - 03 Jan	GOL Linhas Aéreas
19 Dec - 03 Jan	Copa
29 Dec - 03 Jan	Copa
27 Dec - 03 Jan	GOL Linhas Aéreas

Also check the deals for one-way flights from Sao Paulo to San Juan 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.

Book a cheap hotel in San Juan

Cheap car rent in San Juan

Cheapest return flights from Sao Paulo to San Juan in December from 500€

Return flights