Cheapest return flights from Santiago to San Juan in September from $424

AirHint found the following cheapest return flights from Santiago (SCL) to San Juan (SJU) in September 2025 (see full year).

Return flights

08 Sep - 29 Sep Avianca
27 Sep - 03 Oct Avianca
18 Sep - 25 Sep Copa
11 Sep - 14 Sep Copa
10 Sep - 17 Sep Avianca
17 Sep - 21 Sep Avianca
11 Sep - 20 Sep Copa
12 Sep - 21 Sep LATAM Airlines Group
13 Sep - 19 Sep LATAM Airlines Group
13 Sep - 20 Sep LATAM Airlines Group

Also check the deals for one-way flights from Santiago to San Juan in September.

Skyscanner

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.

Book a cheap hotel in San Juan

Cheap car rent in San Juan

Feel free to contact us with any feedback or request another flight research.