Cheapest return flights from Louisville to San Juan in August from $255

AirHint found the following cheapest return flights from Louisville (SDF) to San Juan (SJU) in August 2025 (see full year).

Return flights

04 Aug - 08 Aug Spirit Airlines
07 Aug - 11 Aug Spirit Airlines
04 Aug - 11 Aug Spirit Airlines
29 Aug - 01 Sep Spirit Airlines
13 Aug - 18 Aug Southwest Airlines
06 Aug - 10 Aug Southwest Airlines

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

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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