Cheapest return flights from Philadelphia to San Juan in August from 146€

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

Return flights

31 Aug - 06 Sep Spirit Airlines
28 Aug - 06 Sep Frontier Airlines
31 Aug - 21 Sep Spirit Airlines
31 Aug - 11 Sep Spirit Airlines
31 Aug - 04 Sep Spirit Airlines
31 Aug - 18 Sep Spirit Airlines
31 Aug - 17 Sep Spirit Airlines
31 Aug - 13 Sep Spirit Airlines
25 Aug - 28 Aug Spirit Airlines
25 Aug - 11 Sep Spirit Airlines
25 Aug - 04 Sep Spirit Airlines
25 Aug - 29 Aug Spirit Airlines
23 Aug - 28 Aug Spirit Airlines
23 Aug - 29 Aug Spirit Airlines
25 Aug - 30 Aug Spirit Airlines
23 Aug - 25 Aug Spirit Airlines
23 Aug - 30 Aug Spirit Airlines
28 Aug - 30 Aug Frontier Airlines
25 Aug - 25 Aug Spirit Airlines
28 Aug - 29 Aug Spirit Airlines

Also check the deals for one-way flights from Philadelphia 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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