Cheapest return flights from Philadelphia to San Juan in July from $175

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

Return flights

15 Jul - 16 Jul Frontier Airlines
07 Jul - 10 Jul Frontier Airlines
06 Jul - 11 Jul Frontier Airlines
06 Jul - 10 Jul Frontier Airlines
14 Jul - 16 Jul Frontier Airlines
06 Jul - 12 Jul Frontier Airlines
11 Jul - 16 Jul Frontier Airlines
01 Jul - 09 Jul Frontier Airlines
16 Jul - 19 Jul Frontier Airlines
05 Jul - 17 Jul Spirit Airlines
26 Jul - 02 Aug Frontier Airlines
31 Jul - 02 Aug Spirit Airlines
26 Jul - 02 Aug Spirit Airlines direct
19 Jul - 02 Aug Spirit Airlines direct
18 Jul - 02 Aug Spirit Airlines direct
15 Jul - 02 Aug Spirit Airlines direct
16 Jul - 02 Aug Spirit Airlines direct
22 Jul - 02 Aug Spirit Airlines direct
29 Jul - 02 Aug Spirit Airlines direct
20 Jul - 02 Aug Spirit Airlines direct

Also check the deals for one-way flights from Philadelphia to San Juan in July.

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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