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	United
20 Jan - 01 Feb	Copa
31 Jan - 08 Feb	Avianca
16 Jan - 23 Jan	Avianca
17 Jan - 28 Jan	United
18 Jan - 04 Feb	Copa
01 Jan - 10 Jan	Avianca
14 Jan - 22 Jan	Copa
09 Jan - 19 Jan	Arajet
03 Jan - 25 Jan	Arajet
05 Jan - 09 Jan	United
05 Jan - 25 Jan	United
04 Jan - 11 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 $545

Return flights