Cheapest return flights from Philadelphia to San Juan in May from 160€

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 May 2025 (see full year).

Return flights

14 May - 20 May Spirit Airlines direct
09 May - 14 May Spirit Airlines
09 May - 14 May Spirit Airlines direct
11 May - 18 May Spirit Airlines direct
17 May - 28 May United
16 May - 22 May Delta
18 May - 25 May United
19 May - 24 Jun Delta
13 May - 27 May Southwest Airlines

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

Skyscanner

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