Cheapest return flights from Philadelphia to San Juan in June from $337

Best time to book flights for Philadelphia (PHL) to San Juan (SJU) flights at AirHint

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

Return flights

03 Jun - 28 Jun jetBlue
03 Jun - 28 Jun Frontier Airlines direct
11 Jun - 14 Jun Frontier Airlines direct
11 Jun - 15 Jun Frontier Airlines direct
05 Jun - 09 Jun Frontier Airlines direct
02 Jun - 09 Jun Frontier Airlines direct
06 Jun - 09 Jun Frontier Airlines direct
05 Jun - 08 Jun Frontier Airlines direct
18 Jun - 28 Jun Frontier Airlines direct
23 Jun - 29 Jun Frontier Airlines direct
24 Jun - 02 Jul Frontier Airlines direct

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

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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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