Cheap Delta flights Philadelphia (PHL) to San Diego (SAN)

Grab affordable return Delta Air Lines flights from PHL to SAN by organizing your results from "Price (lowest to highest)" on Expedia. Or search for deals for a one-way trip.*

*These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.

January is one of the least expensive months to fly to San Diego with Delta Air Lines. You could also find fantastic deals on one-way and return fares in November.

Enter your dates, click search and check "Nonstop" on Expedia to find any direct flights from PHL to SAN with Delta Air Lines or another airline.

San Diego Intl. Airport (SAN) is the primary San Diego hub for Delta Air Lines flights from Philadelphia Intl. Airport (PHL).

Changes are often free within 24 hours of making your booking, but your airline may add a charge after that. For more details about modifying your flights, head to your "Trips," select your flight and click on "Manage Booking." If you'd like the freedom to change your itinerary without being charged, apply the "Changes included" and "No cancel fee" filters when planning your next escape.