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

Return flights

01 Dec - 08 Dec	Avianca
08 Dec - 16 Dec	Avianca
11 Dec - 18 Dec	LATAM Airlines Group
24 Dec - 10 Jan	Copa
05 Dec - 14 Dec	Avianca
23 Dec - 30 Dec	Avianca
29 Dec - 21 Jan	Copa
15 Dec - 31 Jan	LATAM Airlines Group
26 Dec - 09 Jan	LATAM Airlines Group
31 Dec - 21 Jan	Copa
26 Dec - 18 Jan	LATAM Airlines Group
21 Dec - 21 Jan	LATAM Airlines Group
30 Dec - 23 Jan	Avianca
30 Dec - 22 Jan	Avianca
27 Dec - 19 Jan	Avianca
21 Dec - 27 Dec	Avianca
26 Dec - 30 Dec	Avianca

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 331€

Return flights