Cheap Alaska Airlines Flights from Philadelphia to San Diego (PHL→SAN)

View AU$1,038 flight on Thu, 9 Oct 2025Opens in a new window
    notification illustration

    Be in the know

    Get alerts if flight prices drop or rise*
    deals illustration

    Book smarter

    Save up to 35% on select hotels after you book a flight*
    trophy illustration

    Earn twice

    Earn your airline miles on top of our rewards
    Sign in

Prices were available within the past 7 days for one-way flights and round trip tickets for the period specified. Prices and availability are subject to change. Additional terms apply.

Flight from Philadelphia to San Diego route information
Origin airport
Philadelphia Intl.
Destination airport
San Diego Intl.
Distance
3784 km
Average flight time
4 hours 39 mins

Frequently asked questions

How much is an Alaska Airlines flight from Philadelphia Intl. Airport (PHL) to San Diego Intl. Airport (SAN)?
Apply the "Price (lowest to highest)" filter on Expedia to find cheap Alaska Airlines return flights from PHL to SAN. Affordable one-way tickets from AU$1,038 are also on offer.**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.
What is the cheapest month to fly from PHL to SAN with Alaska Airlines?
Alaska Airlines flights to San Diego are often more affordable in the off-peak months of January and November. Whether you're after a one-way or a return ticket, you could find a better deal then.
Does Alaska Airlines fly nonstop from Philadelphia Intl. Airport (PHL) to San Diego Intl. Airport (SAN)?
Select our "Nonstop" filter when browsing for direct Alaska Airlines flights from PHL to SAN. It's also a great way to compare other airlines offering the same nonstop journey.
What airports does Alaska Airlines fly into in San Diego?
Board an Alaska Airlines flight from Philadelphia Intl. Airport (PHL) to San Diego, and you'll probably land at San Diego Intl. Airport (SAN). This is the airline's primary hub in this destination.
Can I change or cancel my Alaska Airlines flight from Philadelphia Intl. Airport (PHL) to San Diego Intl. Airport (SAN)?
It's usually possible to modify or cancel your flight, although there may be additional fees if you booked more than 24 hours ago. Want to keep your options open? Apply the "No cancel fee" and "Changes included" filters to find flights that won't penalize you if you need to adjust your plans. To update your booking, go to "Trips," select your flight and click on "Manage Booking" for further information.

Explore a world of travel with Expedia

*Available to Expedia members.