AirHint found the following cheapest return flights from Santiago (SCL) to San Juan (SJU) in October 2025 (see full year).
Return flights
| 29 Oct - 06 Nov | Avianca | ||
| 29 Oct - 08 Nov | Avianca | ||
| 23 Oct - 05 Nov | Avianca | ||
| 31 Oct - 07 Nov | Copa | ||
| 24 Oct - 07 Nov | Avianca | ||
| 17 Oct - 26 Oct | Copa | ||
| 25 Oct - 31 Oct | Copa |
Also check the deals for one-way flights from Santiago to San Juan in October.
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