AirHint found the following cheapest return flights from Santiago (SCL) to San Juan (SJU) in January 2026 (see full year).

Return flights

23 Jan - 09 Feb	Avianca
20 Jan - 01 Feb	Avianca
21 Jan - 24 Jan	Sky Airline
31 Jan - 07 Feb	Copa
19 Jan - 24 Feb	JetSmart
31 Jan - 08 Feb	JetSmart
19 Jan - 22 Jan	LATAM Airlines Group
14 Jan - 21 Jan	Copa
14 Jan - 22 Jan	Copa
29 Jan - 16 Feb	Copa
09 Jan - 19 Jan	Copa
10 Jan - 16 Jan	JetSmart
05 Jan - 25 Jan	Copa
03 Jan - 25 Jan	Copa
01 Jan - 06 Jan	Copa
01 Jan - 05 Jan	Copa

Also check the deals for one-way flights from Santiago to San Juan 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 Santiago to San Juan in January from 518€

Return flights