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

Select a price to book. see full year.

Dates, airline, and price
Dates Airline Price
27 May 30 May Frontier Airlines
Direct Flight
27 May 03 Jun Frontier Airlines
30 May 01 Jun Frontier Airlines
Direct Flight
27 May 10 Jun Frontier Airlines
31 May 05 Jun Frontier Airlines
Direct Flight
29 May 05 Jun Frontier Airlines
Direct Flight
27 May 10 Jun Frontier Airlines
Direct Flight
29 May 03 Jun Frontier Airlines
29 May 04 Jun Frontier Airlines
31 May 06 Jun Frontier Airlines
31 May 14 Jun Frontier Airlines
25 May 30 May Frontier Airlines
Direct Flight
26 May 29 May Frontier Airlines
Direct Flight
27 May 31 May Frontier Airlines
25 May 27 May Frontier Airlines
28 May 30 May Frontier Airlines
Direct Flight
24 May 30 May Frontier Airlines
Direct Flight
26 May 28 May Frontier Airlines
24 May 27 May Frontier Airlines
27 May 31 May Frontier Airlines
Direct Flight
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deals for one-way flights from Philadelphia to San Juan in May.

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Updated May 23, 2026.

About these fares

These results come from our latest search across airlines for your currency. Prices change quickly and are not locked until you complete booking—always confirm the total and fare rules on the partner site.

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