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

Return flights

20 Jan - 28 Jan	Avianca
19 Jan - 29 Jan	LATAM Airlines Group
19 Jan - 31 Jan	LATAM Airlines Group
17 Jan - 24 Jan	LATAM Airlines Group
19 Jan - 26 Jan	LATAM Airlines Group
30 Jan - 06 Feb	LATAM Airlines Group
07 Jan - 28 Jan	LATAM Airlines Group
13 Jan - 20 Jan	LATAM Airlines Group
05 Jan - 11 Jan	LATAM Airlines Group
18 Jan - 26 Jan	Copa
07 Jan - 02 Feb	Avianca
02 Jan - 18 Jan	LATAM Airlines Group
29 Jan - 19 Feb	Avianca

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 544€

Return flights