Cheapest return flights from San Antonio to San Juan in August from $316

AirHint found the following cheapest return flights from San Antonio (SAT) to San Juan (SJU) in August 2026 (see full year).

Return flights

05 Aug - 19 Aug Spirit Airlines
16 Aug - 19 Aug Spirit Airlines
06 Aug - 10 Aug Southwest Airlines
14 Aug - 19 Aug Breeze Airways
16 Aug - 22 Aug Southwest Airlines
05 Aug - 10 Aug Spirit Airlines
05 Aug - 22 Aug Spirit Airlines
05 Aug - 09 Aug Southwest Airlines
06 Aug - 09 Aug Southwest Airlines
06 Aug - 19 Aug Spirit Airlines

Also check the deals for one-way flights from San Antonio to San Juan in August.

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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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