PHL to SJU from $416 in business – flightdeals.net

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Frontier Airlines

F9Frontier Airlines

Round Trip•Business Class

Philadelphia International Airport

Philadelphia, United States

Luis Muñoz Marín International Airport

San Juan, Puerto Rico

$537 USD

-23%$416 USD

Verified about 8 hours ago

December 2026

Mon

Tue

Wed

Thu

Fri

Sat

Sun

30$627 1$550 2$520 3$560 4$542 5$546 6$493 7$493 8$462 9$526 10$546 11$524 12$567 13$577 14$558 15$581 16$581 17$661 18$683 19$674 20$751 21$794 22$794 23$917 24$813 25$901 26$868 27$802 28$1,073 29$1,055 30$1,063 31 1 2 3

Good Availability

49% of dates checked are available within 10% of the lowest price

Monday, December 28th, 2026

3 round-trip options

Returning

Sat, Jan 2, 2027•5 Day Trip

$1,129 USD

Returning

Sun, Jan 3, 2027•6 Day Trip

$1,183 USD

Returning

Mon, Jan 4, 2027•7 Day Trip

$1,073 USD