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

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

Return flights

02 May - 06 May Frontier Airlines direct
12 May - 16 May Frontier Airlines direct
09 May - 14 May Frontier Airlines direct
14 May - 16 May Frontier Airlines direct
02 May - 08 May Frontier Airlines direct
09 May - 12 May Frontier Airlines direct
02 May - 07 May Frontier Airlines direct
11 May - 15 May Frontier Airlines direct
08 May - 12 May Frontier Airlines direct
03 May - 08 May Frontier Airlines direct
28 May - 01 Jun Frontier Airlines
29 May - 02 Jun Frontier Airlines
28 May - 02 Jun Frontier Airlines
29 May - 01 Jun Frontier Airlines
29 May - 01 Jun Frontier Airlines direct
13 May - 02 Jun Spirit Airlines direct
13 May - 01 Jun Spirit Airlines direct
11 May - 01 Jun Spirit Airlines direct
19 May - 08 Jun Spirit Airlines direct
19 May - 02 Jun Spirit Airlines direct

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

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