AirHint found the following cheapest return flights from Santiago (SCL) to San Jose (SJO) in December 2025 (see full year).

Return flights

05 Dec - 15 Dec	Avianca
07 Dec - 15 Dec	LATAM Airlines Group
06 Dec - 15 Dec	LATAM Airlines Group
06 Dec - 11 Dec	LATAM Airlines Group
06 Dec - 12 Dec	LATAM Airlines Group
07 Dec - 13 Dec	LATAM Airlines Group
11 Dec - 19 Dec	Avianca
05 Dec - 14 Dec	Avianca
25 Dec - 04 Jan	Copa
08 Dec - 15 Dec	LATAM Airlines Group
06 Dec - 13 Dec	LATAM Airlines Group
19 Dec - 02 Jan	Copa
20 Dec - 04 Jan	Copa
26 Dec - 06 Jan	Copa
26 Dec - 01 Jan	Copa
27 Dec - 05 Jan	Copa
24 Dec - 10 Jan	Copa
20 Dec - 29 Jan	Copa
25 Dec - 05 Jan	Copa
30 Dec - 20 Jan	Copa

Also check the deals for one-way flights from Santiago to San Jose in December.

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 Santiago to San Jose in December from 341€

Return flights