Cheap flights from Philadelphia International to San Diego International from $249
Updated 2026-07-21
2365 miles great-circle distance, typically flown in 5h 09m with 7 airlines operating direct service from Philadelphia International (PHL) to San Diego International (SAN). 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 Diego
San Diego International is 3 miles from downtown San Diego — the second most central US airport after BOS. MTS Route 992 runs from the terminals directly to downtown San Diego in 15 minutes for $2.50. Fares from US East Coast cities peak around Comic-Con (mid-July) and the San Diego Padres' major series; September–November is consistently the cheapest window with the best weather.
Who flies PHL to SAN?
| Airline | IATA | Flight time | Cabin |
| American Airlines | AA | 5h 09m | Economy |
| Frontier Airlines | F9 | 5h 09m | Economy |
| Spirit Airlines | NK | 5h 09m | Economy |
| Southwest Airlines | WN | 5h 09m | Economy |
| JetBlue Airways | B6 | 5h 09m | Economy |
| Delta Air Lines | DL | 5h 09m | Economy |
| United Airlines | UA | 5h 09m | Economy |
7 carriers fly direct on this corridor. Frequencies vary by season — summer and winter holiday peaks see additional flights.
Philadelphia to San Diego FAQs
Direct flights from Philadelphia International (PHL) to San Diego International (SAN) take approximately 5h 09m for the 2365-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 San Diego International (SAN): 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 — United States 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.
San Diego International (SAN) is the primary international airport for San Diego. 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.