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

Return flights

28 Jan - 05 Feb	Avianca
27 Jan - 05 Feb	Avianca
26 Jan - 03 Feb	Avianca
20 Jan - 03 Feb	LATAM Airlines Group
29 Jan - 19 Feb	Avianca
29 Jan - 01 Feb	Avianca
28 Jan - 01 Feb	Avianca
26 Jan - 09 Feb	Avianca
29 Jan - 14 Feb	Avianca
29 Jan - 09 Feb	Avianca
13 Jan - 27 Jan	LATAM Airlines Group
17 Jan - 31 Jan	LATAM Airlines Group
19 Jan - 29 Jan	Avianca
20 Jan - 29 Jan	Avianca
18 Jan - 29 Jan	LATAM Airlines Group
14 Jan - 28 Jan	Sky Airline
18 Jan - 24 Jan	Avianca
14 Jan - 23 Jan	Sky Airline
21 Jan - 29 Jan	Sky Airline
13 Jan - 30 Jan	LATAM Airlines Group

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 $600

Return flights