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$107+ Cheap flights from Philadelphia to San Diego (PHL - SAN)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/23. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — SAN
Dec 26 — Jan 21
Fri 12/26
Fri 1/2
1 adult, Economy
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Find cheap flights from Philadelphia to San Diego with Cheapflights

1. Tell us where you want to go

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Cheapflights Tip: The best prices from Philadelphia to San Diego are usually found in September or August, booked 30 days in advance, depart on a Tuesday or Wednesday and return on a Wednesday

Find flight deals from Philadelphia to San Diego

Cheapest flights from Philadelphia to San Diego
Explore the most affordable flight options available from Philadelphia to San Diego. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 26, 2025.

This Kiwi.com deal was found by Cheapflights users on 11/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/87:33 pmPHL - SAN
1 stop20h 03mMultiple Airlines
Fri 12/121:33 pmSAN - PHL
2 stops18h 44mMultiple Airlines
Deal found 11/25$325
This Expedia deal was found by Cheapflights users on 11/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/44:12 pmPHL - SAN
1 stop10h 39mMultiple Airlines
Wed 12/104:25 pmSAN - PHL
1 stop10h 21mMultiple Airlines
Deal found 11/25$326
This Kiwi.com deal was found by Cheapflights users on 11/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/86:15 amPHL - SAN
2 stops16h 00mMultiple Airlines
Tue 12/91:21 pmSAN - PHL
1 stop19h 42mMultiple Airlines
Deal found 11/24$328
This American Airlines deal was found by Cheapflights users on 11/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/188:37 amPHL - SAN
Nonstop6h 02mAmerican Airlines
Thu 12/256:15 amSAN - PHL
1 stop10h 36mAmerican Airlines
Deal found 11/26$329
This eDestinos deal was found by Cheapflights users on 11/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/1110:00 pmPHL - SAN
2 stops44h 52mMultiple Airlines
Sat 12/138:42 pmSAN - PHL
2 stops42h 56mMultiple Airlines
Deal found 11/24$331
This CheapOair deal was found by Cheapflights users on 11/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/276:00 amPHL - SAN
1 stop20h 59mFrontier
Mon 12/84:57 pmSAN - PHL
1 stop9h 34mFrontier
Deal found 11/25$332
This Frontier deal was found by Cheapflights users on 11/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/197:10 amPHL - SAN
1 stop8h 28mFrontier
Tue 12/301:06 pmSAN - PHL
1 stop13h 34mFrontier
Deal found 11/24$333
This Cheapflightsfares deal was found by Cheapflights users on 11/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/13:25 pmPHL - SAN
1 stop11h 34mFrontier
Sun 12/74:47 pmSAN - PHL
1 stop9h 44mFrontier
Deal found 11/26$334
This Kiwi.com deal was found by Cheapflights users on 11/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/76:00 amPHL - SAN
1 stop9h 36mMultiple Airlines
Fri 12/121:33 pmSAN - PHL
2 stops18h 44mMultiple Airlines
Deal found 11/25$335
This Kiwi.com deal was found by Cheapflights users on 11/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/26:22 pmPHL - SAN
2 stops31h 24mMultiple Airlines
Tue 12/91:21 pmSAN - PHL
1 stop19h 42mMultiple Airlines
Deal found 11/24$339
This Kiwi.com deal was found by Cheapflights users on 11/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/87:33 pmPHL - SAN
1 stop20h 03mMultiple Airlines
Thu 12/116:25 amSAN - PHL
2 stops23h 52mMultiple Airlines
Deal found 11/26$340

Cheap flight deals from Philadelphia to San Diego

Discover tips and strategies to find the most affordable flight options for your journey from Philadelphia (PHL) to San Diego (SAN). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated November 26, 2025.

Most accurate provider

Justfly.com
3 stars

Most trusted provider

Justfly.com
3 stars

Round-trip from

$325
(Kiwi.com)

One-way from

$107
(Kiwi.com)

Popular in

December

Cheapest in

September

Average price

$439

Good round-trip deal

$367 or less

Good one-way deal

$208 or less
Provider with most accurate pricing for Philadelphia-San Diego flight deals.
Search Deals
Provider most trusted by Cheapflights users for Philadelphia-San Diego flights.
Search Deals
From Philadelphia to San Diego
Search Deals
One-way flight from Philadelphia to San Diego
Search Deals
Highest demand for flights based on searches. 6% potential increase in price ($28 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($8 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
Search Deals
Price to beat on a round-trip flight from Philadelphia to San Diego.
Search Deals
Price to beat on a one-way flight from Philadelphia to San Diego.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Philadelphia to San Diego that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated November 26, 2025.
Use the filters below to find and compare flights from Philadelphia to San Diego that are best for you.

Fly from

Philadelphia

Fly to

San Diego

Route

Depart

Return

Price

PhiladelphiaSan Diego

PHL - SAN

PHLSAN

Philadelphia

Thu 4/2

8:20 am-1:57 pm

1 stop8h 37m

San Diego

Thu 4/9

8:50 pm-7:33 am

1 stop7h 43m

$337

PhiladelphiaSan Diego

PHL - SAN

PHLSAN

Philadelphia

Sat 1/10

6:00 am-10:48 am

1 stop7h 48m

San Diego

Tue 1/13

11:58 am-11:56 pm

1 stop8h 58m

$341

PhiladelphiaSan Diego

PHL - SAN

PHLSAN

Philadelphia

Sat 2/21

12:10 pm-6:35 pm

1 stop9h 25m

San Diego

Wed 2/25

11:40 am-10:00 pm

1 stop7h 20m

$341

PhiladelphiaSan Diego

PHL - SAN

PHLSAN

Philadelphia

Tue 1/6

6:15 am-1:48 pm

1 stop10h 33m

San Diego

Wed 1/14

8:05 am-5:42 pm

1 stop6h 37m

$341

PhiladelphiaSan Diego

PHL - SAN

PHLSAN

Philadelphia

Sat 1/10

6:00 am-10:33 am

1 stop7h 33m

San Diego

Wed 1/14

6:30 am-5:42 pm

1 stop8h 12m

$341

PhiladelphiaSan Diego

PHL - SAN

PHLSAN

Philadelphia

Sat 1/17

6:30 am-11:48 am

1 stop8h 18m

San Diego

Wed 1/21

6:30 am-6:54 pm

2 stops9h 24m

$342

PhiladelphiaSan Diego

PHL - SAN

PHLSAN

Philadelphia

Thu 2/19

6:20 pm-11:03 pm

1 stop31h 43m

San Diego

Tue 2/24

8:26 pm-5:20 pm

1 stop17h 54m

$349

PhiladelphiaSan Diego

PHL - SAN

PHLSAN

Philadelphia

Wed 1/7

1:50 pm-8:50 pm

2 stops10h 00m

San Diego

Wed 1/14

10:30 am-10:00 pm

2 stops8h 30m

$351

PhiladelphiaSan Diego

PHL - SAN

PHLSAN

Philadelphia

Sun 2/22

6:00 am-1:57 pm

1 stop10h 57m

$133

PhiladelphiaSan Diego

PHL - SAN

PHLSAN

Philadelphia

Thu 1/22

1:30 pm-8:20 pm

1 stop9h 50m

$133

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/25

Showing 1-10 of 16 results
1
2

Compare providers for flights from Philadelphia to San Diego

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Philadelphia to San Diego in November.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust Score*3 stars
CheapflightsfaresPrice Accuracy3 starsTrust Score*2 stars
Kiwi.comPrice Accuracy3 starsTrust Score*3 stars
Trip.comPrice Accuracy2 starsTrust Score*3 stars
JustAirTicketPrice Accuracy-Trust Score*1 star
Justfly.comPrice Accuracy3 starsTrust Score*3 stars
JetabroadPrice Accuracy3 starsTrust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Philadelphia-San Diego flights, users find the pricing of Justfly.com to be most consistent on Cheapflights vs. Justfly.com Users can find the same prices on Philadelphia-San Diego flight deals on Cheapflights vs. Justfly.com >95% of the time. Price accuracy is based on data collected from Philadelphia-San Diego flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Philadelphia-San Diego flights, Cheapflights users trust Justfly.com the most. Justfly.com has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Philadelphia-San Diego flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Philadelphia to San Diego

Have a flexible travel schedule? Discover the best time to fly to San Diego from Philadelphia with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Philadelphia to San Diego

How far ahead should I book a flight from Philadelphia to San Diego?

Use this chart to determine the optimal time to book a round-trip flight from Philadelphia to San Diego. Price data was last updated on November 21, 2025.

To ensure you get the cheapest price possible for a flight from Philadelphia to San Diego, you should look to book at least 30 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Philadelphia to San Diego?

Currently, December is the cheapest month in which you can book a flight from Philadelphia to San Diego (average of $84). Flying from Philadelphia to San Diego in July is currently the most expensive (average of $168). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from PHL to SAN?

Find hourly flight availability from Philadelphia to San Diego. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 26, 2025.

A simple way to save on the total cost of your ticket is to fly from Philadelphia to San Diego at noon. If you’re flexible enough to do this you can expect to save up to 14% on your trip compared to booking a flight in the morning.

What is the cheapest day to fly from Philadelphia to San Diego?

Use this chart to determine the cheapest time to fly round-trip from Philadelphia to San Diego. Price data was last updated on November 25, 2025.

Travelers seeking maximum savings on their Philadelphia to San Diego flight should consider departing on Monday at noon when fares are most often at their lowest. Sunday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing San Diego

Get insights into the airlines that provide service to San Diego. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to San Diego. Reviews last updated November 26, 2025.
Read through reviews of airlines operating flights from Philadelphia to San Diego, such as Southwest, Delta, and American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,254 reviews

Food

7.0

Crew

8.6

Overall

8.0

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Southwest
8.0
Very good
4,254 reviews
Southwest
8.0
Very good
4,254 reviews

Food

7.0

Crew

8.6

Overall

8.0

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Delta
7.9
Good
8,003 reviews
Southwest
8.0
Very good
4,254 reviews

Food

7.0

Crew

8.6

Overall

8.0

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
American Airlines
7.2
Good
11,037 reviews
Southwest
8.0
Very good
4,254 reviews

Food

7.0

Crew

8.6

Overall

8.0

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Spirit Airlines
6.3
Okay
8,156 reviews
Southwest
8.0
Very good
4,254 reviews

Food

7.0

Crew

8.6

Overall

8.0

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Frontier
5.8
Fair
3,101 reviews
Southwest
8.0
Very good
4,254 reviews

Food

7.0

Crew

8.6

Overall

8.0

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.

Related info for your journey

Find useful and relevant information for your journey from Philadelphia to San Diego. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airports do I use to fly from Philadelphia to San Diego?

    If you wish to fly to San Diego from Philadelphia, then you need to book flights from Philadelphia to San Diego. There are 4 flights from Philadelphia (PHL) to San Diego (SAN) per day to choose from. Flights to San Diego from Philadelphia are available from 7 different airlines, which means you should have some options if you want to compare airfare deals. 5h 47m is how long a nonstop flight from Philadelphia to San Diego typically takes.

  • How long is the flight from Philadelphia to San Diego?

    JetBlue and Delta can get you from Philadelphia to San Diego in just under 7h 48m. Your travel time can differ by up to 49m. The distance from Philadelphia to San Diego is about 2364 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines flying from Philadelphia to San Diego round-trip?

    According to our current data, Frontier ($140), Spirit Airlines ($147), and JetBlue ($157) offers the cheapest pricing from Philadelphia to San Diego. Frontier is priced at 66% lower than the current average price of a flight leaving 3 months from now.

  • What are the most reliable airlines from Philadelphia to San Diego?

    No one likes to see their flight delayed. When booking a flight from Philadelphia to San Diego consider choosing American Airlines (78%), British Airways (76%) or Qatar Airways (74%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Philadelphia to San Diego?

    Looking for the cheapest flight from Philadelphia to San Diego? While on average our users pay $684, our data indicates the cheapest price to be $161. The most popular route (Philadelphia - San Diego), is priced around $223.

  • Where are the most common layover locations when flying from Philadelphia to San Diego?

    The most popular layover on flights from Philadelphia to San Diego is Las Vegas.

  • What are some popular things to do or see while on a layover in Las Vegas?

    Las Vegas travelers tend to visit Fremont Street Experience, Fountains of Bellagio, and Stratosphere Tower more than anywhere else. Fremont Street Experience, Fountains of Bellagio, and Stratosphere Tower are located about 5.9 mi, 2.3 mi, and 4.3 mi, respectively from Las Vegas Harry Reid Intl. Those on a layover in Las Vegas in need of a rental car can book one at Las Vegas Harry Reid Intl for about $49.

  • Where are the least popular layover locations for Philadelphia to San Diego flights?

    Philadelphia to San Diego flights that have layovers will least frequently stop in Denver.

  • Can I find deals for flights from Philadelphia to San Diego that include hotel bookings?

    Yes. In addition to deals on Philadelphia to San Diego flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Philadelphia to San Diego?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Philadelphia to San Diego.

  • Can I find deals for business class flights from Philadelphia to San Diego?

    Yes. Cheapflights offers flight deals from Philadelphia to San Diego by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Philadelphia to San Diego?

    Currently, December is the cheapest month in which you can book a flight from Philadelphia to San Diego (average of $84). Flying from Philadelphia to San Diego in July is currently the most expensive (average of $168). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near San Diego?

Book flights to San Diego if you plan to visit one of these locations
El Cajon
Chula Vista
Coronado
La Mesa
Poway
Lemon Grove
National City

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Alternative routes for Philadelphia to San Diego

See prices for flight routes from nearby airports that may be better suited for you.
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Top 7 airlines flying from Philadelphia to San Diego

Discover the top 7 airlines that operate flights from Philadelphia to San Diego. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated November 26, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$141Average$233FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$147Average$252FlexibilityNo cancel feeOn-time65%
JetBlueCheapest$157Average$298FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$158Average$431FlexibilityNo cancel feeOn-time69%
DeltaCheapest$230Average$339FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$302Average$485FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$311Average$443FlexibilityNo cancel feeOn-time71%

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