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

Return flights

27 Jan - 03 Feb	Arajet
27 Jan - 23 Feb	Copa
27 Jan - 25 Feb	Copa
21 Jan - 27 Feb	Copa
28 Jan - 11 Feb	Avianca
01 Jan - 14 Feb	Avianca
19 Jan - 28 Jan	Avianca
26 Jan - 19 Feb	Copa
02 Jan - 11 Jan	LATAM Airlines Group
29 Jan - 19 Feb	Copa
06 Jan - 26 Jan	Avianca
18 Jan - 26 Jan	Avianca
05 Jan - 16 Jan	Avianca
21 Jan - 02 Feb	Copa
18 Jan - 29 Jan	Avianca
22 Jan - 07 Feb	Avianca
01 Jan - 25 Jan	Avianca
01 Jan - 17 Jan	Copa
15 Jan - 31 Jan	LATAM Airlines Group
15 Jan - 26 Jan	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 587€

Return flights