Philadelphia to San Diego $126 Round-Trip, Spring & Summer Travel

Here's a great transcontinental fare! Fly from Philadelphia to San Diego for $126 round-trip on United Airlines this Spring or Summer.

Depart as soon as next week through early July at this price. Departure days vary per month, but you will have the best luck finding seats departing Tuesday, Wednesday, and Saturday. Searching on United.com we found seats available from PHL on Saturday, May 12, and returning from SAN on Tuesday, May 15, 2018. This fare also works in reverse for those San Diegans wanting to visit the City of Brotherly Love.

Have a look at our Philadelphia PHL fare details page for a complete list of all our daily finds.

Need a place to stay while in San Diego? Here is what is available from Hotelwatchdog for the listed dates above.