Cheapest return flights from Philadelphia to San Jose in May from $278

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

Return flights

18 May - 27 May jetBlue
12 May - 01 Jun Spirit Airlines
29 May - 01 Jun Spirit Airlines
03 May - 09 May Spirit Airlines
03 May - 05 May Spirit Airlines
23 May - 26 May American Airlines
29 May - 10 Jun Spirit Airlines
29 May - 15 Jun Spirit Airlines
29 May - 14 Jun Spirit Airlines

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