$95 Cheap Flights from Philadelphia (PHL) to San Diego (SAN)

View $95 flight on Sat, Apr 25, 2026Opens in a new window

Popular airlines from Philadelphia Intl. Airport (PHL) to San Diego Intl. Airport (SAN)

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Today's featured flight deals from Philadelphia Intl. Airport (PHL) to San Diego Intl. Airport (SAN)

Nonstop
Carry-on included
Lower price than typical

Cheap Flights from Philadelphia to San Diego (PHL-SAN)

Prices were available within the past 7 days and start at $95 for one-way flights and $190 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Sat, May 23 - Wed, May 27
PHL
Philadelphia
SAN
San Diego
$190 Roundtrip, found 2 hours ago
$190
Roundtrip
found 2 hours ago
Select United flight, departing Sat, May 23 from Philadelphia to San Diego, returning Wed, May 27, priced at $190 found 2 hours ago
United
Sat, Apr 25 - Sat, May 2
PHL
Philadelphia
SAN
San Diego
$194 Roundtrip, just found
$194
Roundtrip
just found
Select United flight, departing Sat, Apr 25 from Philadelphia to San Diego, returning Sat, May 2, priced at $194 just found
United
Sat, Apr 25 - Sat, May 2
PHL
Philadelphia
SAN
San Diego
$199 Roundtrip, just found
$199
Roundtrip
just found
Select United flight, departing Sat, Apr 25 from Philadelphia to San Diego, returning Sat, May 2, priced at $199 just found
United
Tue, Jan 6 - Fri, Jan 9
PHL
Philadelphia
SAN
San Diego
$200 Roundtrip, just found
$200
Roundtrip
just found
Select United flight, departing Tue, Jan 6 from Philadelphia to San Diego, returning Fri, Jan 9, priced at $200 just found
Frontier Airlines
Thu, Nov 13 - Sat, Nov 15
PHL
Philadelphia
SAN
San Diego
$203 Roundtrip, just found
$203
Roundtrip
just found
Select Frontier Airlines flight, departing Thu, Nov 13 from Philadelphia to San Diego, returning Sat, Nov 15, priced at $203 just found
Frontier Airlines
Sat, Oct 25 - Sun, Oct 26
PHL
Philadelphia
SAN
San Diego
$204 Roundtrip, found 4 hours ago
$204
Roundtrip
found 4 hours ago
Select Frontier Airlines flight, departing Sat, Oct 25 from Philadelphia to San Diego, returning Sun, Oct 26, priced at $204 found 4 hours ago
United
Sat, Apr 25 - Sat, May 2
PHL
Philadelphia
SAN
San Diego
$204 Roundtrip, just found
$204
Roundtrip
just found
Select United flight, departing Sat, Apr 25 from Philadelphia to San Diego, returning Sat, May 2, priced at $204 just found
Southwest Airlines
Tue, Jan 20 - Wed, Jan 28
PHL
Philadelphia
SAN
San Diego
$220 Roundtrip, found 6 days ago
$220
Roundtrip
found 6 days ago
Select Southwest Airlines flight, departing Tue, Jan 20 from Philadelphia to San Diego, returning Wed, Jan 28, priced at $220 found 6 days ago
Spirit Airlines
Fri, Oct 3 - Sat, Oct 4
PHL
Philadelphia
SAN
San Diego
$261 Roundtrip, found 18 hours ago
$261
Roundtrip
found 18 hours ago
Select Spirit Airlines flight, departing Fri, Oct 3 from Philadelphia to San Diego, returning Sat, Oct 4, priced at $261 found 18 hours ago
Alaska Airlines
Wed, Oct 29 - Tue, Nov 4
PHL
Philadelphia
SAN
San Diego
$287 Roundtrip, just found
$287
Roundtrip
just found
Select Alaska Airlines flight, departing Wed, Oct 29 from Philadelphia to San Diego, returning Tue, Nov 4, priced at $287 just found

Find the cheapest month to fly from Philadelphia (PHL) to San Diego (SAN)

October is typically the cheapest month to fly

From $120 - $265 per traveler.

Frequently asked questions

How much does a flight from Philadelphia Intl. Airport (PHL) to San Diego Intl. Airport (SAN) cost?
Get a cheap one-way flight from $95 or cheap return flight from $190 from Philadelphia Intl. Airport (PHL) to San Diego Intl. Airport (SAN) 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 Intl. Airport (SAN)?
The cheapest month to fly from PHL to SAN is May, when there's less demand. Off-peak months are typically when you'll find cheap fares for travel between these airports.
Which airlines fly direct from Philadelphia Intl. Airport (PHL) to San Diego Intl. Airport (SAN)?
When flying out of Philadelphia Intl. Airport (PHL), you can get on a direct flight to San Diego Intl. Airport (SAN) with American Airlines.
What is the cheapest airline that flies from Philadelphia Intl. Airport (PHL) to San Diego Intl. Airport (SAN)?
To find the cheapest airline that'll fly you from PHL to SAN, use Expedia's filter tool. Tailor your search based on your travel needs, such as preferred carriers and seat class. You can then sort your results by "Price (lowest to highest)" to list the most affordable options first.
How many flights per day from Philadelphia Intl. Airport (PHL) to San Diego Intl. Airport (SAN)?
With an average of 2 direct flights that operate from Philadelphia Intl. Airport (PHL) to San Diego Intl. Airport (SAN) each day, you'll be jetting off in no time.
What are the most popular departure times for flights from Philadelphia Intl. Airport (PHL) to San Diego Intl. Airport (SAN)?
More passengers fly between PHL and SAN at 8 AM than at any other time of day. Prefer a quieter experience? Pick a flight outside the busiest times and it's possible you'll save on your ticket as well.
What day of the week has the most flights from PHL to SAN?
Travel on a Friday if you're looking for the largest selection of flights from Philadelphia Intl. Airport (PHL) to San Diego Intl. Airport (SAN).
What is the earliest flight from Philadelphia Intl. Airport (PHL) to San Diego Intl. Airport (SAN)?
Philadelphia Intl. Airport (PHL)'s first flight to San Diego Intl. Airport (SAN) leaves at approximately 8:50AM UTC-5. With a total journey time of 6h, you'll touch down at around 11:50AM UTC-8.
How long does it take to fly from Philadelphia Intl. Airport (PHL) to San Diego Intl. Airport (SAN)?
The average flight time from PHL to SAN is 6 hours, covering a total distance of 2,400 mi.
What is the best time to fly from Philadelphia Intl. Airport (PHL) to San Diego Intl. Airport (SAN)?
Choose a flight from Philadelphia Intl. Airport (PHL) to San Diego Intl. Airport (SAN) that leaves before 3 PM to reduce the likelihood of delays and cancellations. Departures after this hour are on average 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 from Philadelphia Intl. Airport (PHL)?
If you're traveling on a direct flight from Philadelphia Intl. Airport (PHL) to San Diego, San Diego Intl. Airport (SAN) is the only airport you can touch down at.
Is it cheaper to buy a plane ticket from Philadelphia Intl. Airport (PHL) to San Diego Intl. Airport (SAN) last-minute?
Waiting until just before your trip to book a ticket from PHL to SAN often results in higher prices. While you may find some last-minute deals, there's no guarantee. Keep your travel schedule open for a better chance of landing a bargain.
Is it cheaper to book a PHL to SAN flight and hotel package?
Compared with arranging hotels and flights separately, booking a PHL to SAN flight and hotel package with Expedia could lead to significant savings. What's more, managing everything in one place will take the stress out of travel planning. Just pick your flights and select from our extensive range of stays, then personalize your trip with extras like car rentals and activities.
Can I cancel or change the date of my flight from Philadelphia Intl. Airport (PHL) to San Diego Intl. Airport (SAN)?
It's generally possible to cancel or reschedule your PHL to SAN flight. However, if the booking was made more than 24 hours ago, additional charges may apply. Refer to your airline's policies in your itinerary to see what changes are allowed and whether any costs are involved. You'll also find more details on our Customer Service portal.

Travel information

Travel information

Origin airport
Philadelphia Intl.
Destination airport
San Diego Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, JetBlue Airways, Southwest Airlines, Spirit Airlines, Sun Country Airlines, United
Roundtrip price
$189
Distance
2365 mi
Average flight time
4 hours 38 mins

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 May. 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 $95 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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Explore a world of travel with Expedia

*Available to One Key members.