Cheapest one-way flights from Philadelphia to San Juan in May from 80€

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

One-Way flights

15 May Frontier Airlines direct
16 May Frontier Airlines direct
08 May Frontier Airlines direct
09 May Spirit Airlines direct
10 May Spirit Airlines direct
01 May Spirit Airlines direct
19 May Spirit Airlines direct
02 May Spirit Airlines direct
07 May Spirit Airlines direct
11 May Spirit Airlines direct

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

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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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