Cheapest return flights from Philadelphia to San Juan in May from $151

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

Return flights

13 May - 27 May Spirit Airlines direct
12 May - 20 May Spirit Airlines direct
12 May - 27 May Spirit Airlines direct
20 May - 27 May Spirit Airlines direct
13 May - 20 May Spirit Airlines direct
12 May - 02 Jun Spirit Airlines direct
20 May - 10 Jun Spirit Airlines direct
20 May - 02 Jun Spirit Airlines direct
13 May - 02 Jun Spirit Airlines direct
15 May - 23 May jetBlue direct
08 May - 11 May jetBlue direct
20 May - 26 May Spirit Airlines direct
12 May - 31 May Spirit Airlines direct
12 May - 30 May Spirit Airlines direct
20 May - 09 Jun Spirit Airlines direct
23 May - 10 Jun Spirit Airlines direct
23 May - 02 Jun Spirit Airlines direct
15 May - 02 Jun Spirit Airlines direct
23 May - 09 Jun Spirit Airlines direct
21 May - 10 Jun Spirit Airlines direct

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

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