AirHint found the following cheapest return flights from Buenos Aires (EZE) to San Juan (SJU) in December 2025 (see full year).

Return flights

08 Dec - 14 Dec	Arajet
04 Dec - 16 Dec	Avianca
03 Dec - 11 Dec	Copa
03 Dec - 14 Dec	Copa
03 Dec - 16 Dec	Copa
12 Dec - 17 Dec	Copa
13 Dec - 22 Dec	Copa
04 Dec - 21 Dec	Copa
22 Dec - 05 Jan	Arajet
20 Dec - 03 Jan	Copa
28 Dec - 03 Jan	Copa

Also check the deals for one-way flights from Buenos Aires 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 Buenos Aires to San Juan in December from $514

Return flights