Cheapest one-way flights from Philadelphia to San Juan in April from $76

AirHint found the following cheapest one-way flights from Philadelphia (PHL) to San Juan (SJU) in April 2026 (see full year).

One-Way flights

28 Apr Spirit Airlines direct
06 Apr Frontier Airlines direct
09 Apr Frontier Airlines
11 Apr Frontier Airlines direct
13 Apr Frontier Airlines direct
05 Apr Frontier Airlines direct
09 Apr Frontier Airlines direct
12 Apr Frontier Airlines direct
14 Apr Spirit Airlines
07 Apr Spirit Airlines

Also check the deals for return flights from Philadelphia to San Juan in April.

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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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