Cheapest one-way flights from Philadelphia to San Juan in May from $69

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

One-Way flights

13 May Frontier Airlines direct
05 May Frontier Airlines direct
17 May Spirit Airlines direct
19 May Frontier Airlines direct
20 May Frontier Airlines direct
02 May Frontier Airlines direct
06 May Frontier Airlines direct
09 May Frontier Airlines direct
12 May Frontier Airlines direct
18 May Spirit Airlines direct

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

Powered by

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.

Book a cheap hotel in San Juan

Cheap car rent in San Juan

Feel free to contact us with any feedback or request another flight research.