Cheapest return flights from Charleston to San Juan in October from $246

AirHint found the following cheapest return flights from Charleston (CHS) to San Juan (SJU) in October 2025 (see full year).

Return flights

10 Oct - 13 Oct Frontier Airlines
06 Oct - 13 Oct Spirit Airlines
24 Oct - 26 Oct Southwest Airlines
24 Oct - 27 Oct American Airlines
17 Oct - 24 Oct American Airlines
09 Oct - 15 Oct Spirit Airlines

Also check the deals for one-way flights from Charleston to San Juan in October.

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.

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