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$150+ 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 2/20. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — SAN
Jan 25 — Feb 11
Sat 1/25
Sat 2/1
1 adult, Economy
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The best prices from Philadelphia to San Diego are usually found in November or January, booked 85 days in advance, depart on a Tuesday or Wednesday and return on a Tuesday

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 January 20, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$273
(FlightHub)

One-way from

$150
(FlightHub)

Popular in

December

Cheapest in

November

Average price

$417
Provider with most accurate pricing for Philadelphia-San Diego flight deals.
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Provider most trusted by Cheapflights users for Philadelphia-San Diego flights.
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From Philadelphia to San Diego
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One-way flight from Philadelphia to San Diego
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High demand for flights, 3% potential price rise
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Best time to find cheap flights, 0% potential price drop
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Average for round-trip flights in January 2025
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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 January 20, 2025.

This Kiwi.com deal was found by Cheapflights users on 1/19. 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 3/3110:08 pmPHL - SAN
1 stop12h 22mSpirit Airlines
Wed 4/28:07 pmSAN - PHL
1 stop6h 37mSpirit Airlines
Deal found 1/19$273
This Frontier deal was found by Cheapflights users on 1/19. 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 2/148:00 amPHL - SAN
1 stop14h 18mFrontier
Sat 2/159:56 pmSAN - PHL
1 stop6h 42mFrontier
Deal found 1/19$276
This FlightHub deal was found by Cheapflights users on 1/19. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/215:40 amPHL - SAN
1 stop21h 40mMultiple Airlines
Mon 3/245:30 pmSAN - PHL
2 stops13h 43mMultiple Airlines
Deal found 1/19$288
This American Airlines deal was found by Cheapflights users on 1/19. 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.
Sat 3/227:10 pmPHL - SAN
Nonstop6h 03mAmerican Airlines
Tue 3/2510:45 pmSAN - PHL
Nonstop5h 07mAmerican Airlines
Deal found 1/19$323
This Alaska Airlines deal was found by Cheapflights users on 1/19. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/37:25 amPHL - SAN
1 stop12h 12mAlaska Airlines
Tue 9/95:25 pmSAN - PHL
1 stop9h 36mAlaska Airlines
Deal found 1/19$342
This Delta deal was found by Cheapflights users on 1/19. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/197:00 amPHL - SAN
1 stop8h 33mDelta
Tue 4/226:15 amSAN - PHL
1 stop8h 32mDelta
Deal found 1/19$343
This United Airlines deal was found by Cheapflights users on 1/19. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/156:41 amPHL - SAN
1 stop8h 01mUnited Airlines
Sat 4/197:00 amSAN - PHL
2 stops11h 39mUnited Airlines
Deal found 1/19$348
This JetBlue deal was found by Cheapflights users on 1/19. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/2710:11 amPHL - SAN
1 stop11h 27mJetBlue
Fri 4/48:24 pmSAN - PHL
1 stop8h 15mJetBlue
Deal found 1/19$375
This Cheapflightsfares deal was found by Cheapflights users on 1/18. 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.
Thu 6/1912:05 pmPHL - SAN
1 stop8h 14mSun Country Air
Thu 6/266:23 pmSAN - PHL
1 stop13h 47mSun Country Air
Deal found 1/18$387
This Southwest deal was found by Cheapflights users on 1/19. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/146:35 pmPHL - SAN
2 stops15h 45mSouthwest
Mon 5/266:30 amSAN - PHL
1 stop7h 30mSouthwest
Deal found 1/19$415

Find flights from Philadelphia to San Diego within your budget

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 January 20, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

PhiladelphiaSan Diego

PHL - SAN

PHLSAN

Philadelphia

Mon 3/31

10:08 pm-7:30 am

1 stop12h 22m

San Diego

Tue 4/1

8:07 pm-5:44 am

1 stop6h 37m

$273

PhiladelphiaSan Diego

PHL - SAN

PHLSAN

Philadelphia

Fri 2/14

8:00 am-7:18 pm

1 stop14h 18m

San Diego

Sat 2/15

9:56 pm-7:38 am

1 stop6h 42m

$276

PhiladelphiaSan Diego

PHL - SAN

PHLSAN

Philadelphia

Fri 3/21

5:40 am-12:20 am

1 stop21h 40m

San Diego

Mon 3/24

5:30 pm-10:13 am

2 stops13h 43m

$288

PhiladelphiaSan Diego

PHL - SAN

PHLSAN

Philadelphia

Sat 3/22

7:10 pm-10:13 pm

Nonstop6h 03m

San Diego

Tue 3/25

10:45 pm-6:52 am

Nonstop5h 07m

$323

PhiladelphiaSan Diego

PHL - SAN

PHLSAN

Philadelphia

Sat 4/19

6:05 pm-10:50 pm

1 stop7h 45m

San Diego

Wed 4/23

6:15 am-5:47 pm

1 stop8h 32m

$343

PhiladelphiaSan Diego

PHL - SAN

PHLSAN

Philadelphia

Tue 4/15

6:41 am-11:42 am

1 stop8h 01m

San Diego

Sat 4/19

7:00 am-9:39 pm

2 stops11h 39m

$348

PhiladelphiaSan Diego

PHL - SAN

PHLSAN

Philadelphia

Thu 3/27

10:11 am-6:38 pm

1 stop11h 27m

San Diego

Fri 4/4

8:24 pm-7:39 am

1 stop8h 15m

$375

PhiladelphiaSan Diego

PHL - SAN

PHLSAN

Philadelphia

Thu 2/20

9:00 am-10:56 pm

2 stops16h 56m

$150

PhiladelphiaSan Diego

PHL - SAN

PHLSAN

Philadelphia

Fri 4/18

6:03 pm-12:55 am

1 stop9h 52m

$155

PhiladelphiaSan Diego

PHL - SAN

PHLSAN

Philadelphia

Wed 2/26

8:49 am-11:54 am

Nonstop6h 05m

$162

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/19

Showing 1-10 of 14 results
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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 January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy3 starsTrust Score*1 star
PricelinePrice Accuracy2 starsTrust Score*3 stars
FlightnetworkPrice Accuracy-Trust Score*3 stars
GotogatePrice Accuracy2 starsTrust Score*2 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars
Justfly.comPrice Accuracy3 starsTrust Score*3 stars
CheapOairPrice Accuracy2 starsTrust Score*2 stars

*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 FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Philadelphia-San Diego flight deals on Cheapflights vs. FlightHub >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 FlightHub the most. FlightHub 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.

Travel insights for flights from Philadelphia to San Diego

Get recent, data-driven insights about flights from Philadelphia to San Diego including ideal travel times, pricing trends, and more.

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 January 17, 2025.

To ensure you get the cheapest price possible for a flight from Philadelphia to San Diego, you should look to book at least 85 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, August is the cheapest month in which you can book a flight from Philadelphia to San Diego (average of $286). Flying from Philadelphia to San Diego in March is currently the most expensive (average of $366). 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 January 20, 2025.

A simple way to save on the total cost of your ticket is to fly from Philadelphia to San Diego in the evening. If you’re flexible enough to do this you can expect to save up to 31% 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 December 16, 2024.

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.

Weekly flight availability from Philadelphia to San Diego

Explore weekly flight availability from Philadelphia to San Diego. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated January 20, 2025.

The most flights from PHL to SAN are scheduled on a Monday (6 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (5 on average).

Rainfall in San Diego by month

Plan your trip to San Diego by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in San Diego ranges from 0.0 - 2.3 inches per month. February is typically the wettest month, when rainfall can reach 2.3 in. July is typically the driest time to visit San Diego when rainfall is around 0.0 in.

Temperature in San Diego by month

Plan your trip to San Diego by taking into account the average temperature totals by month.

If weather is an important factor for your trip to San Diego, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 71.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 57.2 F).

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 January 20, 2025.
Peruse reviews from past customers who have flown with Spirit Airlines, American Airlines and Delta from Philadelphia to San Diego to help guide your decision. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,659 reviews

Boarding

8.2

Crew

8.7

Comfort

8.1

Entertainment

7.7

Food

7.2

Overall

8.1

Reviews

1 / 10

No issues. I needed pre boarding and I was able to get it without issue

Southwest
8.1
Very good
4,659 reviews
Southwest
8.1
Very good
4,659 reviews

Boarding

8.2

Crew

8.7

Comfort

8.1

Entertainment

7.7

Food

7.2

Overall

8.1

Reviews

1 / 10

No issues. I needed pre boarding and I was able to get it without issue

Alaska Airlines
8.0
Very good
9,696 reviews
Southwest
8.1
Very good
4,659 reviews

Boarding

8.2

Crew

8.7

Comfort

8.1

Entertainment

7.7

Food

7.2

Overall

8.1

Reviews

1 / 10

No issues. I needed pre boarding and I was able to get it without issue

Delta
8.0
Very good
8,521 reviews
Southwest
8.1
Very good
4,659 reviews

Boarding

8.2

Crew

8.7

Comfort

8.1

Entertainment

7.7

Food

7.2

Overall

8.1

Reviews

1 / 10

No issues. I needed pre boarding and I was able to get it without issue

JetBlue
7.4
Good
3,201 reviews
Southwest
8.1
Very good
4,659 reviews

Boarding

8.2

Crew

8.7

Comfort

8.1

Entertainment

7.7

Food

7.2

Overall

8.1

Reviews

1 / 10

No issues. I needed pre boarding and I was able to get it without issue

United Airlines
7.4
Good
8,982 reviews
Southwest
8.1
Very good
4,659 reviews

Boarding

8.2

Crew

8.7

Comfort

8.1

Entertainment

7.7

Food

7.2

Overall

8.1

Reviews

1 / 10

No issues. I needed pre boarding and I was able to get it without issue

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 5 flights from Philadelphia (PHL) to San Diego (SAN) per day to choose from. Flights to San Diego from Philadelphia are available from 6 different airlines, which means you should have some options if you want to compare airfare deals. 5h 32m is how long a nonstop flight from Philadelphia to San Diego typically takes.

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

    According to our current data, Spirit Airlines ($273), Frontier ($276), and American Airlines ($323) offers the cheapest pricing from Philadelphia to San Diego. Spirit Airlines is priced at 40% lower than the current average price of a flight leaving 3 months from now.

  • What are the cheapest airlines to fly from Philadelphia to San Diego one-way?

    To fly one-way, consider booking your trip with Spirit Airlines, which is currently one of the cheapest options available, starting at $150. Frontier flights start at $155 while deals on American Airlines start at $162 one-way.

  • 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 Iberia (82%), British Airways (66%) or American Airlines (66%) 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 $942, our data indicates the cheapest price to be $156. The most popular route (Philadelphia - San Diego), is priced around $136.

  • 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 Denver.

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

    Denver travelers tend to visit Coors Field, 16th Street Mall, and Paramount Theatre more than anywhere else. Coors Field, 16th Street Mall, and Paramount Theatre are located about 18.4 mi, 18.7 mi, and 18.6 mi, respectively from Denver Intl. Those on a layover in Denver in need of a rental car can book one at Denver Intl for about $52.

  • 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 Las Vegas.

  • 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, August is the cheapest month in which you can book a flight from Philadelphia to San Diego (average of $286). Flying from Philadelphia to San Diego in March is currently the most expensive (average of $366). 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 Philadelphia?

Book flights to Philadelphia if you plan to visit one of these locations
El Cajon
Chula Vista
Lemon Grove
National City
Imperial Beach
La Mesa
Alpine
Poway
Santee
Coronado
Borrego Springs

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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 6 airlines flying from Philadelphia to San Diego

Discover the top 6 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 January 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$123Average$239FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$147Average$253FlexibilityNo cancel feeOn-time65%
DeltaCheapest$197Average$407FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$221Average$390FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$292Average$486FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$302Average$488FlexibilityNo cancel feeOn-time71%
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