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

Return flights

13 Jan - 18 Jan	Arajet
03 Jan - 17 Jan	Avianca
12 Jan - 03 Feb	Avianca
15 Jan - 14 Feb	Avianca
01 Jan - 16 Jan	Avianca
01 Jan - 17 Jan	Avianca
27 Jan - 10 Feb	Avianca
16 Jan - 30 Jan	Avianca
12 Jan - 30 Jan	Avianca
13 Jan - 03 Feb	Avianca
21 Jan - 27 Feb	Avianca
10 Jan - 17 Jan	Avianca
18 Jan - 29 Jan	Avianca
07 Jan - 27 Jan	Avianca
05 Jan - 15 Jan	Avianca
01 Jan - 14 Feb	Avianca
13 Jan - 13 Feb	Avianca
30 Jan - 15 Feb	Avianca
07 Jan - 14 Feb	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 561€

Return flights