PHL to SJU from $156 in economy – flightdeals.net

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Frontier Airlines

F9Frontier Airlines

Round Trip•Economy

Philadelphia International Airport

Philadelphia, United States

Luis Muñoz Marín International Airport

San Juan, Puerto Rico

$271 USD

-42%$156 USD

Verified about 8 hours ago

December 2026

Mon

Tue

Wed

Thu

Fri

Sat

Sun

30$357 1$290 2$260 3$300 4$282 5$286 6$243 7$243 8$212 9$266 10$286 11$264 12$313 13$317 14$298 15$321 16$321 17$391 18$413 19$404 20$471 21$504 22$504 23$607 24$509 25$577 26$568 27$512 28$753 29$735 30$743 31 1 2 3

Extremely Rare Availability

2% of dates checked are available within 10% of the lowest price

Tuesday, December 29th, 2026

2 round-trip options

Returning

Sun, Jan 3, 2027•5 Day Trip

$845 USD

Returning

Mon, Jan 4, 2027•6 Day Trip

$735 USD