Cheapest return flights from Philadelphia (PHL) to San Juan (SJU), August

Select a price to book. see full year.

Dates, airline, and price
Dates Airline Price
24 Aug 27 Aug Frontier Airlines
Direct Flight
24 Aug 29 Aug Frontier Airlines
17 Aug 21 Aug Frontier Airlines
Direct Flight
17 Aug 01 Sep Frontier Airlines
17 Aug 22 Aug Frontier Airlines
23 Aug 27 Aug Frontier Airlines
Direct Flight
26 Aug 09 Sep Frontier Airlines
Direct Flight
08 Aug 14 Aug Frontier Airlines
Direct Flight
18 Aug 25 Aug Frontier Airlines
17 Aug 23 Aug Frontier Airlines
14 Aug 17 Aug Frontier Airlines
27 Aug 31 Aug Frontier Airlines
18 Aug 01 Sep Frontier Airlines
28 Aug 01 Sep Frontier Airlines
Direct Flight
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deals for one-way flights from Philadelphia to San Juan in August.

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Updated May 23, 2026.

About these fares

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