Cheap Flights from Philadelphia (PHL) to San Diego (SDM)

Popular airlines from Philadelphia Intl. Airport (PHL) to San Diego, CA (SDM-Brown Field Municipal)

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Frequently asked questions

How much does a flight from Philadelphia Intl. Airport (PHL) to San Diego, CA (SDM-Brown Field Municipal) cost?
Lock in a cheap one-way flight or cheap return flight from Philadelphia Intl. Airport (PHL) to San Diego, CA (SDM-Brown Field Municipal) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from Philadelphia Intl. Airport (PHL) to San Diego, CA (SDM-Brown Field Municipal)?
is the most affordable month to fly from PHL to SDM. Traveling during quieter months is often the key to landing a great deal.
What is the cheapest airline that flies from Philadelphia Intl. Airport (PHL) to San Diego, CA (SDM-Brown Field Municipal)?
Expedia's filter tool lets you easily compare travel time, airlines and fares all in one place. Select your preferences, then sort by "Price (lowest to highest)" to see which carrier offers the cheapest PHL to SDM flight.
How many flights per day from Philadelphia Intl. Airport (PHL) to San Diego, CA (SDM-Brown Field Municipal)?
Direct flights from Philadelphia Intl. Airport (PHL) to San Diego, CA (SDM-Brown Field Municipal) aren't available daily, so you'll have to take a flight with a layover. Explore your options with Expedia's filter tool. Enter your travel dates and pick either "1 Stop" or "2+ Stops."
What day of the week has the most flights from PHL to SDM?
Generally you'll find the widest variety of flight choices on a Friday. Tuesdays are often the quietest.* However, this can change depending on the airline, time of year and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Philadelphia Intl. Airport (PHL) to San Diego, CA (SDM-Brown Field Municipal)?
To avoid possible delays on the Philadelphia Intl. Airport (PHL) to San Diego, CA (SDM-Brown Field Municipal) route, aim to fly before 3 PM. Later departures are 22% more likely to be canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports do you fly into for San Diego County from Philadelphia Intl. Airport (PHL)?
San Diego Intl. Airport (SAN) is the only airport in San Diego County with direct flights from Philadelphia Intl. Airport (PHL). Explore the options and find cheap fares on Expedia.
Is it cheaper to buy a plane ticket from Philadelphia Intl. Airport (PHL) to San Diego, CA (SDM-Brown Field Municipal) last-minute?
Last-minute bookings from PHL to SDM are usually more expensive. To secure the best rates, start searching for flights early. That said, if your travel plans are flexible, you may score a cheap fare right before you leave.
Is it cheaper to book a PHL to SDM flight and hotel package?
Securing a PHL to SDM flight and hotel package is typically cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your trip in one place. Select from our wide range of accommodations and then add activities, car rentals and flights to your booking. Bundle it all together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Philadelphia Intl. Airport (PHL) to San Diego, CA (SDM-Brown Field Municipal)?
Generally, it's possible to reschedule or cancel your PHL to SDM flight. However, if the booking was made more than 24 hours ago, additional fees may apply. Refer to your airline's policies in your itinerary to see what changes are allowed and if any costs are involved. You'll also find further details on our Customer Service portal.

Travel information

Travel information

Origin airport
Philadelphia Intl.
Destination airport
Brown Field Municipal
Distance
2358 mi

Book with confidence

Book with confidence

Philadelphia to San Diego Flights

The cheapest times to fly from Philadelphia to San Diego

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Philadelphia to San Diego are during the month of . You can find some of the cheapest flights from Philadelphia to San Diego with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Philadelphia to San Diego

Sunday is one of the best days to book for cheap flights from Philadelphia to San Diego: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Philadelphia to San Diego

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Philadelphia to San Diego in 2025. You can also book with separate airlines for your outbound and return journeys, from one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Philadelphia to San Diego flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Philadelphia to San Diego airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Philadelphia to San Diego Flights

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*Available to One Key members.