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

Return flights

02 Dec - 16 Dec	Copa
01 Dec - 16 Dec	Copa
13 Dec - 23 Dec	Avianca
21 Dec - 30 Dec	Avianca
25 Dec - 01 Jan	Copa
18 Dec - 22 Dec	Avianca
13 Dec - 20 Dec	Avianca
29 Dec - 05 Jan	Avianca
26 Dec - 02 Jan	Copa
29 Dec - 03 Jan	Copa
25 Dec - 07 Jan	Copa
20 Dec - 03 Jan	Avianca
13 Dec - 31 Dec	Copa
27 Dec - 10 Jan	LATAM Airlines Group
31 Dec - 12 Jan	Avianca
22 Dec - 04 Jan	Copa

Also check the deals for one-way flights from San Jose to Santiago 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 San Jose to Santiago in December from 386€

Return flights