Cheapest return flights from Philadelphia to San Juan in May from 121€

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

01 May - 05 May Spirit Airlines direct
07 May - 15 May Spirit Airlines direct
07 May - 14 May Spirit Airlines direct
17 May - 19 May Spirit Airlines direct
17 May - 21 May Spirit Airlines direct
16 May - 20 May Spirit Airlines direct
15 May - 19 May Spirit Airlines direct
08 May - 12 May Spirit Airlines direct
27 May - 30 May Spirit Airlines direct
13 May - 16 May Spirit Airlines direct
31 May - 03 Jun Frontier Airlines direct
27 May - 02 Jun Frontier Airlines direct
29 May - 03 Jun Frontier Airlines direct
26 May - 02 Jun Frontier Airlines direct
29 May - 04 Jun Frontier Airlines direct
28 May - 01 Jun Frontier Airlines direct
25 May - 01 Jun Frontier Airlines direct
29 May - 02 Jun Frontier Airlines direct
29 May - 01 Jun Frontier Airlines direct
30 May - 02 Jun Frontier Airlines direct

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.

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