S$178 Cheap Flights from Philadelphia to San Diego

View S$178 flight on Wed, 27 Aug, 2025Opens in a new window

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

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

Prices were available within the past 7 days and start at S$178 for one-way flights and S$355 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Wed, 27 Aug - Wed, 3 Sep
PHL
Philadelphia
SAN
San Diego
S$355 Return, found 6 days ago
S$355
Return
found 6 days ago
Select Delta flight, departing Wed, 27 Aug from Philadelphia to San Diego, returning Wed, 3 Sep, priced at S$355 found 6 days ago
Delta
Sat, 16 Aug - Sat, 23 Aug
PHL
Philadelphia
SAN
San Diego
S$356 Return, found 3 days ago
S$356
Return
found 3 days ago
Select Delta flight, departing Sat, 16 Aug from Philadelphia to San Diego, returning Sat, 23 Aug, priced at S$356 found 3 days ago
Delta
Wed, 27 Aug - Wed, 3 Sep
PHL
Philadelphia
SAN
San Diego
S$408 Return, found 6 days ago
S$408
Return
found 6 days ago
Select Delta flight, departing Wed, 27 Aug from Philadelphia to San Diego, returning Wed, 3 Sep, priced at S$408 found 6 days ago
Delta
Wed, 27 Aug - Wed, 3 Sep
PHL
Philadelphia
SAN
San Diego
S$420 Return, found 6 days ago
S$420
Return
found 6 days ago
Select Delta flight, departing Wed, 27 Aug from Philadelphia to San Diego, returning Wed, 3 Sep, priced at S$420 found 6 days ago
United
Sat, 16 Aug - Sat, 23 Aug
PHL
Philadelphia
SAN
San Diego
S$421 Return, found 3 days ago
S$421
Return
found 3 days ago
Select United flight, departing Sat, 16 Aug from Philadelphia to San Diego, returning Sat, 23 Aug, priced at S$421 found 3 days ago
Delta
Sat, 16 Aug - Sat, 23 Aug
PHL
Philadelphia
SAN
San Diego
S$422 Return, found 3 days ago
S$422
Return
found 3 days ago
Select Delta flight, departing Sat, 16 Aug from Philadelphia to San Diego, returning Sat, 23 Aug, priced at S$422 found 3 days ago
Delta
Wed, 27 Aug - Wed, 3 Sep
PHL
Philadelphia
SAN
San Diego
S$426 Return, found 6 days ago
S$426
Return
found 6 days ago
Select Delta flight, departing Wed, 27 Aug from Philadelphia to San Diego, returning Wed, 3 Sep, priced at S$426 found 6 days ago
United
Sat, 16 Aug - Sat, 23 Aug
PHL
Philadelphia
SAN
San Diego
S$427 Return, found 3 days ago
S$427
Return
found 3 days ago
Select United flight, departing Sat, 16 Aug from Philadelphia to San Diego, returning Sat, 23 Aug, priced at S$427 found 3 days ago
Delta
Wed, 27 Aug - Wed, 3 Sep
PHL
Philadelphia
SAN
San Diego
S$433 Return, found 6 days ago
S$433
Return
found 6 days ago
Select Delta flight, departing Wed, 27 Aug from Philadelphia to San Diego, returning Wed, 3 Sep, priced at S$433 found 6 days ago
American Airlines
Wed, 27 Aug - Wed, 3 Sep
PHL
Philadelphia
SAN
San Diego
S$481 Return, found 6 days ago
S$481
Return
found 6 days ago
Select American Airlines flight, departing Wed, 27 Aug from Philadelphia to San Diego, returning Wed, 3 Sep, priced at S$481 found 6 days ago

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

September is typically the cheapest month to fly

From S$142 - S$296 per traveller.

Graph displaying average flight prices per month

Philadelphia to San Diego route information
Origin airport
Philadelphia Intl.
Destination airport
San Diego Intl.
Airlines serving
American Airlines, Delta, United
Return price
S$355
Distance
3784 km
Average flight time
2 hours 36 mins

Perfect flights from Philadelphia to San Diego

Your Journey from Philadelphia to San Diego

Start your unforgettable journey with Expedia. Our broad selection of flights from Philadelphia to San Diego caters to every travel need. Whether you're yearning for a romantic escape, a solo adventure, or a cultural immersion, we've got you covered.
 

Choosing Your Ideal Flight

With Expedia, you have access to a wide range of airlines, including Delta, United, American Airlines. Our selection of flights from Philadelphia Intl. to San Diego Intl. caters to every traveler's requirements, ensuring your journey aligns with your schedule. With options from 20 airlines, you're bound to find the perfect flight.
 

Maximizing Value with Philadelphia to San Diego Flights

Experience the joy of finding cheap flights from Philadelphia Intl. to San Diego Intl. that fit your budget. Keep an eye out for our special deals and discounts, and check our flexible one-way fares from S$178 and roundtrip prices from S$355*.
 

Pre-Flight Essentials

Ensure a smooth journey from Philadelphia to San Diego with Expedia. From information about check-in times and in-flight amenities to guidance on baggage policies, we provide all the essentials to prepare you for your flight.
 

Experience the Vibrant San Diego

Picture yourself stepping off the plane in San Diego and immersing yourself in the unique atmosphere of San Diego. From local markets to cultural festivals, each city offers its distinct charm. Make the most of your trip by exploring local attractions and indulging in the local cuisine. With Expedia, explore all this and more, tailored to your budget.
 

Added Convenience on Your Philadelphia to San Diego Flight

Traveling with Expedia is more than just a flight. We offer details about in-flight amenities, baggage policies, and more to ensure a smooth and hassle-free journey. Choose from our variety of airlines and embark on a memorable journey from Philadelphia to San Diego.
 

Beyond the Flight – Exploring San Diego

With Expedia, your adventure extends beyond the flight. Explore San Diego at your own pace by renting a car or booking a hotel. Discover hidden gems off the beaten path and create unforgettable memories.
 

Book Your Flight from Philadelphia to San Diego with Confidence

Planning your next great adventure is a breeze with Expedia. Our user-friendly platform, unbeatable prices, and round-the-clock customer support make your travel experience seamless and stress-free. Embark on your journey from Philadelphia to San Diego with confidence. Book your travel arrangements with Expedia today.
 
*Note: Prices may vary based on availability and are subject to change.

Frequently asked questions

How much is a flight from PHL to San Diego Airport?
The lowest price advertised for a round-trip flight from Philadelphia Intl. Airport (PHL) to San Diego Airport is S$355. But you better get a move on. This figure is based on fares offered within the last 7 days on Expedia for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from Philadelphia Airport to San Diego Intl. Airport (SAN)?
We get that circumstances change unexpectedly, so we've made it as easy as possible for you to cancel your trip online. Just visit the Customer Service Portal and follow the instructions.
How do I find cheap flights from PHL to San Diego Intl. Airport (SAN) that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for PHL to SAN flights, you'll see a "no change fees" filter for you to select.
How far is the flight from PHL to San Diego Airport?
You'll be up above the clouds for a while, as the flight distance from Philadelphia Airport to SAN is 3,800 kilometres. Create a playlist of your favourite podcasts before leaving home to stay entertained during your flight.
Which airlines fly direct from Philadelphia Intl. Airport (PHL) to SAN?
Check out American Airlines (AA) if you want to travel straight from Philadelphia Intl. Airport (PHL) to San Diego Airport. This top carrier offers 65 monthly flights, so you're sure to find one that fits your travel plans.
Are PHL to San Diego Airport flight tickets cheaper when they're purchased at the last minute?
Last-minute bookings from PHL to San Diego Intl. Airport (SAN) can be hit-or-miss. You might be lucky and score a bargain, but then again, you could miss out altogether! If you'd prefer to play it safe and start your travel planning ahead of time, Expedia compares flight deals up to a year in advance. Just bear in mind that not all airlines release their prices so far in advance. Our suggestion? Check back often as prices are updated frequently.

Explore a world of travel with Expedia

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S$541.70
*Available to Expedia members.