Find the Cheapest Flights from Philadelphia International Airport to Puerto Rico

Unlock the cheapest flights and the best airfares from Philadelphia International Airport to Puerto Rico. Make your dream trip both memorable and affordable!

Sun, Apr 12PHL-SJU
Spirit Airlines

oneway$90

Mon, Mar 23PHL-SJU
Frontier Airlines

$121

Tue, Mar 24PHL-PSE
Frontier Airlines

oneway$128

Philadelphia International Airport to Puerto Rico: Flight information

Cheapest flight found$90

Cheapest month to flyApril

Most popular airlineSpirit Airlines

Average flight duration3h 42m

Cheapest flight found

Apr 2026

$90

Mar 2026

$98

Aug 2026

$172

Jul 2026

$198

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