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

Return flights

21 Jan - 27 Feb	Copa
27 Jan - 10 Feb	Arajet
21 Jan - 03 Feb	Copa
01 Jan - 20 Jan	Avianca
01 Jan - 18 Jan	Avianca
23 Jan - 08 Feb	LATAM Airlines Group
01 Jan - 26 Jan	Sky Airline
27 Jan - 09 Feb	Copa
13 Jan - 03 Feb	Aerolineas Argentinas
25 Jan - 15 Feb	Aerolineas Argentinas
15 Jan - 03 Feb	GOL Linhas Aéreas
01 Jan - 15 Jan	Avianca
26 Jan - 30 Jan	Copa
26 Jan - 10 Feb	Copa
01 Jan - 16 Feb	Avianca
01 Jan - 31 Jan	Sky Airline
20 Jan - 30 Jan	Copa
18 Jan - 30 Jan	Avianca
07 Jan - 27 Jan	Avianca
10 Jan - 20 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 $741

Return flights