AirHint found the following cheapest return flights from Buenos Aires (EZE) to San Jose (SJO) in January 2026 (see full year).

Return flights

26 Jan - 11 Feb	Avianca
20 Jan - 30 Jan	Avianca
19 Jan - 02 Feb	Avianca
05 Jan - 21 Jan	Avianca
13 Jan - 24 Jan	Avianca
06 Jan - 05 Feb	Avianca
20 Jan - 10 Feb	Avianca
09 Jan - 18 Jan	Avianca
06 Jan - 29 Jan	Avianca
04 Jan - 15 Jan	Avianca
16 Jan - 24 Jan	Copa
05 Jan - 15 Jan	Copa
16 Jan - 30 Jan	Copa

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

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 January from $681

Return flights