Cheap flights from Philadelphia International to Luis Muñoz Marín from $169
Updated 2026-07-21
1580 miles great-circle distance, typically flown in 3h 35m with 7 airlines operating direct service from Philadelphia International (PHL) to Luis Muñoz Marín (SJU). Fares on this corridor stay relatively stable across the year — booking 4–8 weeks ahead and choosing a midweek departure typically secures the best price.
Flying from Philadelphia International
Philadelphia International is American Airlines' largest East Coast hub after Charlotte. Six terminals A through F are connected airside, with SEPTA's Airport Line running from each terminal directly to 30th Street Station downtown in 25 minutes for $7.75. American operates the bulk of the schedule; Frontier and Spirit run heavy ULCC operations on leisure routes. Transatlantic service to Europe is dense — daily flights to London, Frankfurt, Madrid, Doha and Dublin make PHL the cheapest gateway for many small-city US travellers heading to Europe.
Arriving in San Juan
San Juan's Luis Muñoz Marín is the busiest airport in the Caribbean and Puerto Rico's primary international gateway. The airport is 8 km east of Old San Juan; AMA bus T5 runs from the airport, but most travellers use rideshare or taxi (~$25 to Old San Juan). US domestic-status flights (no passport required for US citizens) make San Juan one of the easiest Caribbean destinations from any US hub.
Who flies PHL to SJU?
| Airline | IATA | Flight time | Cabin |
| American Airlines | AA | 3h 35m | Economy |
| Frontier Airlines | F9 | 3h 35m | Economy |
| Spirit Airlines | NK | 3h 35m | Economy |
| Southwest Airlines | WN | 3h 35m | Economy |
| JetBlue Airways | B6 | 3h 35m | Economy |
| Delta Air Lines | DL | 3h 35m | Economy |
| United Airlines | UA | 3h 35m | Economy |
7 carriers fly direct on this corridor. Frequencies vary by season — summer and winter holiday peaks see additional flights.
Philadelphia to San Juan FAQs
Direct flights from Philadelphia International (PHL) to Luis Muñoz Marín (SJU) take approximately 3h 35m for the 1580-mile journey, plus 30–60 minutes of taxi, climb and descent. Total airport-to-airport time depends on cruise winds and air-traffic queueing on approach.
7 carriers operate direct service from Philadelphia International (PHL) to Luis Muñoz Marín (SJU): American Airlines, Frontier Airlines, Spirit Airlines, Southwest Airlines, JetBlue Airways and 2 more. Frequencies vary by season and carrier — American Airlines typically operates the highest weekly count on this corridor.
No — Puerto Rico is domestic travel for US citizens. A US passport is not required for the 50 states, DC or US territories (Puerto Rico, US Virgin Islands, Guam, American Samoa, Northern Mariana Islands), though Real ID-compliant ID is required at TSA from May 2025.
Luis Muñoz Marín (SJU) is the primary international airport for San Juan. Allow 30–60 minutes for the ground transfer by train, express bus, taxi or rideshare depending on traffic and time of day. See the airport's official website for current train and shuttle timetables.