Cheapest return flights from San Juan to Philadelphia in May from $157

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

Return flights

01 May - 10 May Frontier Airlines direct
15 May - 18 May Frontier Airlines direct
07 May - 12 May Frontier Airlines direct
08 May - 11 May Frontier Airlines direct
28 May - 01 Jun Frontier Airlines direct
08 May - 13 May Frontier Airlines
19 May - 25 May Spirit Airlines direct
27 May - 30 May Spirit Airlines direct
27 May - 27 May Spirit Airlines direct
27 May - 29 May Spirit Airlines direct
27 May - 28 May Spirit Airlines direct
27 May - 03 Jun Spirit Airlines direct
27 May - 09 Jun Spirit Airlines direct
15 May - 03 Jun Spirit Airlines direct
20 May - 03 Jun Spirit Airlines direct
20 May - 09 Jun Spirit Airlines direct
19 May - 03 Jun Spirit Airlines direct
18 May - 03 Jun Spirit Airlines direct
30 May - 03 Jun Spirit Airlines direct
30 May - 09 Jun Spirit Airlines direct

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